/usr/bin/java -Xmx16000000000 -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-dev-bc79526 [2022-01-18 07:35:51,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 07:35:51,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 07:35:51,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 07:35:51,323 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 [2022-01-18 07:35:51,349 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 07:35:51,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 07:35:51,350 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 07:35:51,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 07:35:51,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 07:35:51,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 07:35:51,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 07:35:51,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 07:35:51,351 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 07:35:51,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 07:35:51,351 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 07:35:51,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 07:35:51,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 07:35:51,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 07:35:51,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 07:35:51,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 07:35:51,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 07:35:51,351 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 07:35:51,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 07:35:51,352 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 07:35:51,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 07:35:51,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 07:35:51,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 07:35:51,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 07:35:51,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 07:35:51,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 07:35:51,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 07:35:51,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 07:35:51,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 07:35:51,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 07:35:51,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 07:35:51,353 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 07:35:51,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 07:35:51,353 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 07:35:51,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 07:35:51,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 07:35:51,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 07:35:51,552 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 07:35:51,553 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 07:35:51,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl [2022-01-18 07:35:51,554 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy10.wvr.bpl' [2022-01-18 07:35:51,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 07:35:51,577 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 07:35:51,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 07:35:51,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 07:35:51,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 07:35:51,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 07:35:51" (1/1) ... [2022-01-18 07:35:51,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 07:35:51" (1/1) ... [2022-01-18 07:35:51,602 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 07:35:51,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 07:35:51,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 07:35:51,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 07:35:51,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 07:35:51,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 07:35:51" (1/1) ... [2022-01-18 07:35:51,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 07:35:51" (1/1) ... [2022-01-18 07:35:51,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 07:35:51" (1/1) ... [2022-01-18 07:35:51,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 07:35:51" (1/1) ... [2022-01-18 07:35:51,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 07:35:51" (1/1) ... [2022-01-18 07:35:51,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 07:35:51" (1/1) ... [2022-01-18 07:35:51,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 07:35:51" (1/1) ... [2022-01-18 07:35:51,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 07:35:51,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 07:35:51,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 07:35:51,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 07:35:51,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 07:35:51" (1/1) ... [2022-01-18 07:35:51,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 07:35:51,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 07:35:51,641 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) [2022-01-18 07:35:51,660 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 [2022-01-18 07:35:51,683 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-18 07:35:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 07:35:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 07:35:51,683 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-18 07:35:51,683 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 07:35:51,683 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 07:35:51,684 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 07:35:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 07:35:51,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 07:35:51,684 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-01-18 07:35:51,684 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 07:35:51,685 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 07:35:51,685 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-01-18 07:35:51,685 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 07:35:51,685 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 07:35:51,686 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 07:35:51,721 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 07:35:51,722 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 07:35:51,826 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 07:35:51,831 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 07:35:51,831 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 07:35:51,832 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 07:35:51 BoogieIcfgContainer [2022-01-18 07:35:51,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 07:35:51,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 07:35:51,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 07:35:51,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 07:35:51,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 07:35:51" (1/2) ... [2022-01-18 07:35:51,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e754a and model type easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 07:35:51, skipping insertion in model container [2022-01-18 07:35:51,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 07:35:51" (2/2) ... [2022-01-18 07:35:51,851 INFO L111 eAbstractionObserver]: Analyzing ICFG easy10.wvr.bpl [2022-01-18 07:35:51,854 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 07:35:51,854 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 07:35:51,854 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 07:35:51,854 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 07:35:51,892 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 07:35:51,926 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 07:35:51,939 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, 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 [2022-01-18 07:35:51,940 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 07:35:51,946 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 45 transitions, 122 flow [2022-01-18 07:35:52,155 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) [2022-01-18 07:35:52,173 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) [2022-01-18 07:35:52,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:35:52,210 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:35:52,211 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] [2022-01-18 07:35:52,212 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:35:52,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:35:52,215 INFO L85 PathProgramCache]: Analyzing trace with hash -505665144, now seen corresponding path program 1 times [2022-01-18 07:35:52,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:35:52,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571601943] [2022-01-18 07:35:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:35:52,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:35:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:35:52,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:35:52,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:35:52,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571601943] [2022-01-18 07:35:52,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571601943] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:35:52,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:35:52,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 07:35:52,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067428470] [2022-01-18 07:35:52,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:35:52,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 07:35:52,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:35:52,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 07:35:52,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 07:35:52,387 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) [2022-01-18 07:35:52,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:35:52,461 INFO L93 Difference]: Finished difference Result 4197 states and 14419 transitions. [2022-01-18 07:35:52,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 07:35:52,463 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 [2022-01-18 07:35:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:35:52,502 INFO L225 Difference]: With dead ends: 4197 [2022-01-18 07:35:52,502 INFO L226 Difference]: Without dead ends: 4197 [2022-01-18 07:35:52,503 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 [2022-01-18 07:35:52,506 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 [2022-01-18 07:35:52,506 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] [2022-01-18 07:35:52,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2022-01-18 07:35:52,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 4197. [2022-01-18 07:35:52,708 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) [2022-01-18 07:35:52,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4197 states to 4197 states and 14419 transitions. [2022-01-18 07:35:52,727 INFO L78 Accepts]: Start accepts. Automaton has 4197 states and 14419 transitions. Word has length 39 [2022-01-18 07:35:52,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:35:52,728 INFO L470 AbstractCegarLoop]: Abstraction has 4197 states and 14419 transitions. [2022-01-18 07:35:52,728 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) [2022-01-18 07:35:52,728 INFO L276 IsEmpty]: Start isEmpty. Operand 4197 states and 14419 transitions. [2022-01-18 07:35:52,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:35:52,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:35:52,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:35:52,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 07:35:52,739 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:35:52,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:35:52,741 INFO L85 PathProgramCache]: Analyzing trace with hash -436205732, now seen corresponding path program 2 times [2022-01-18 07:35:52,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:35:52,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708023390] [2022-01-18 07:35:52,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:35:52,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:35:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:35:52,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:35:52,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:35:52,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708023390] [2022-01-18 07:35:52,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708023390] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:35:52,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:35:52,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 07:35:52,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170423595] [2022-01-18 07:35:52,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:35:52,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 07:35:52,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:35:52,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 07:35:52,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 07:35:52,766 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) [2022-01-18 07:35:52,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:35:52,801 INFO L93 Difference]: Finished difference Result 3290 states and 11077 transitions. [2022-01-18 07:35:52,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 07:35:52,802 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 [2022-01-18 07:35:52,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:35:52,816 INFO L225 Difference]: With dead ends: 3290 [2022-01-18 07:35:52,816 INFO L226 Difference]: Without dead ends: 3290 [2022-01-18 07:35:52,817 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 [2022-01-18 07:35:52,818 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 [2022-01-18 07:35:52,818 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] [2022-01-18 07:35:52,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3290 states. [2022-01-18 07:35:52,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3290 to 3290. [2022-01-18 07:35:52,892 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) [2022-01-18 07:35:52,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 11077 transitions. [2022-01-18 07:35:52,902 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 11077 transitions. Word has length 39 [2022-01-18 07:35:52,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:35:52,903 INFO L470 AbstractCegarLoop]: Abstraction has 3290 states and 11077 transitions. [2022-01-18 07:35:52,904 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) [2022-01-18 07:35:52,904 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 11077 transitions. [2022-01-18 07:35:52,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:35:52,913 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:35:52,913 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] [2022-01-18 07:35:52,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 07:35:52,913 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:35:52,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:35:52,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1669039620, now seen corresponding path program 3 times [2022-01-18 07:35:52,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:35:52,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114409569] [2022-01-18 07:35:52,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:35:52,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:35:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:35:53,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:35:53,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:35:53,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114409569] [2022-01-18 07:35:53,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114409569] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:35:53,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:35:53,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 07:35:53,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296967639] [2022-01-18 07:35:53,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:35:53,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 07:35:53,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:35:53,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 07:35:53,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 07:35:53,403 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) [2022-01-18 07:35:55,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:35:55,705 INFO L93 Difference]: Finished difference Result 6515 states and 22109 transitions. [2022-01-18 07:35:55,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 07:35:55,706 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 [2022-01-18 07:35:55,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:35:55,735 INFO L225 Difference]: With dead ends: 6515 [2022-01-18 07:35:55,735 INFO L226 Difference]: Without dead ends: 6448 [2022-01-18 07:35:55,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=319, Invalid=3221, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:35:55,737 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 437 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:35:55,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 2263 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2878 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:35:55,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6448 states. [2022-01-18 07:35:55,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6448 to 3506. [2022-01-18 07:35:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3506 states, 3505 states have (on average 3.3703281027104137) internal successors, (11813), 3505 states have internal predecessors, (11813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:35:55,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3506 states to 3506 states and 11813 transitions. [2022-01-18 07:35:55,832 INFO L78 Accepts]: Start accepts. Automaton has 3506 states and 11813 transitions. Word has length 39 [2022-01-18 07:35:55,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:35:55,832 INFO L470 AbstractCegarLoop]: Abstraction has 3506 states and 11813 transitions. [2022-01-18 07:35:55,832 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) [2022-01-18 07:35:55,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3506 states and 11813 transitions. [2022-01-18 07:35:55,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:35:55,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:35:55,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:35:55,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 07:35:55,840 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:35:55,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:35:55,841 INFO L85 PathProgramCache]: Analyzing trace with hash 906311706, now seen corresponding path program 4 times [2022-01-18 07:35:55,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:35:55,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129327111] [2022-01-18 07:35:55,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:35:55,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:35:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:35:56,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:35:56,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:35:56,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129327111] [2022-01-18 07:35:56,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129327111] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:35:56,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:35:56,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 07:35:56,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391883153] [2022-01-18 07:35:56,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:35:56,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 07:35:56,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:35:56,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 07:35:56,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 07:35:56,134 INFO L87 Difference]: Start difference. First operand 3506 states and 11813 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) [2022-01-18 07:35:58,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:35:58,999 INFO L93 Difference]: Finished difference Result 8000 states and 27131 transitions. [2022-01-18 07:35:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-01-18 07:35:58,999 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 [2022-01-18 07:35:59,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:35:59,032 INFO L225 Difference]: With dead ends: 8000 [2022-01-18 07:35:59,032 INFO L226 Difference]: Without dead ends: 7957 [2022-01-18 07:35:59,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2118 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=558, Invalid=6084, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 07:35:59,038 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 549 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 3555 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 3633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 3555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:35:59,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 2592 Invalid, 3633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 3555 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:35:59,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7957 states. [2022-01-18 07:35:59,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7957 to 3706. [2022-01-18 07:35:59,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3706 states, 3705 states have (on average 3.3748987854251014) internal successors, (12504), 3705 states have internal predecessors, (12504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:35:59,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 12504 transitions. [2022-01-18 07:35:59,148 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 12504 transitions. Word has length 39 [2022-01-18 07:35:59,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:35:59,149 INFO L470 AbstractCegarLoop]: Abstraction has 3706 states and 12504 transitions. [2022-01-18 07:35:59,149 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) [2022-01-18 07:35:59,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 12504 transitions. [2022-01-18 07:35:59,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:35:59,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:35:59,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:35:59,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 07:35:59,157 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:35:59,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:35:59,158 INFO L85 PathProgramCache]: Analyzing trace with hash -874286596, now seen corresponding path program 5 times [2022-01-18 07:35:59,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:35:59,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419444383] [2022-01-18 07:35:59,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:35:59,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:35:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:35:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:35:59,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:35:59,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419444383] [2022-01-18 07:35:59,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419444383] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:35:59,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:35:59,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 07:35:59,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422762465] [2022-01-18 07:35:59,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:35:59,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 07:35:59,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:35:59,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 07:35:59,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 07:35:59,459 INFO L87 Difference]: Start difference. First operand 3706 states and 12504 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) [2022-01-18 07:36:02,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:02,483 INFO L93 Difference]: Finished difference Result 8573 states and 29254 transitions. [2022-01-18 07:36:02,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 07:36:02,484 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 [2022-01-18 07:36:02,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:02,516 INFO L225 Difference]: With dead ends: 8573 [2022-01-18 07:36:02,517 INFO L226 Difference]: Without dead ends: 8509 [2022-01-18 07:36:02,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2177 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=568, Invalid=6238, Unknown=0, NotChecked=0, Total=6806 [2022-01-18 07:36:02,520 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 565 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 3634 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 3734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 3634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:02,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 2561 Invalid, 3734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 3634 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:36:02,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2022-01-18 07:36:02,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 3688. [2022-01-18 07:36:02,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3688 states, 3687 states have (on average 3.375915378356387) internal successors, (12447), 3687 states have internal predecessors, (12447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:02,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3688 states to 3688 states and 12447 transitions. [2022-01-18 07:36:02,671 INFO L78 Accepts]: Start accepts. Automaton has 3688 states and 12447 transitions. Word has length 39 [2022-01-18 07:36:02,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:02,672 INFO L470 AbstractCegarLoop]: Abstraction has 3688 states and 12447 transitions. [2022-01-18 07:36:02,672 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) [2022-01-18 07:36:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3688 states and 12447 transitions. [2022-01-18 07:36:02,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:02,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:02,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:02,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 07:36:02,685 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:02,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:02,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1283102212, now seen corresponding path program 6 times [2022-01-18 07:36:02,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:02,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358545456] [2022-01-18 07:36:02,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:02,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:02,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:02,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:02,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358545456] [2022-01-18 07:36:02,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358545456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:02,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:02,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 07:36:02,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088015544] [2022-01-18 07:36:02,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:02,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 07:36:02,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:02,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 07:36:02,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 07:36:02,962 INFO L87 Difference]: Start difference. First operand 3688 states and 12447 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) [2022-01-18 07:36:05,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:05,890 INFO L93 Difference]: Finished difference Result 8145 states and 27755 transitions. [2022-01-18 07:36:05,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-01-18 07:36:05,890 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 [2022-01-18 07:36:05,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:05,911 INFO L225 Difference]: With dead ends: 8145 [2022-01-18 07:36:05,912 INFO L226 Difference]: Without dead ends: 8015 [2022-01-18 07:36:05,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2505 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=626, Invalid=7030, Unknown=0, NotChecked=0, Total=7656 [2022-01-18 07:36:05,914 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 569 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 4076 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 4172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 4076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:05,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [569 Valid, 2840 Invalid, 4172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 4076 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:36:05,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8015 states. [2022-01-18 07:36:05,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8015 to 3664. [2022-01-18 07:36:05,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3664 states, 3663 states have (on average 3.375102375102375) internal successors, (12363), 3663 states have internal predecessors, (12363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:06,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3664 states to 3664 states and 12363 transitions. [2022-01-18 07:36:06,008 INFO L78 Accepts]: Start accepts. Automaton has 3664 states and 12363 transitions. Word has length 39 [2022-01-18 07:36:06,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:06,008 INFO L470 AbstractCegarLoop]: Abstraction has 3664 states and 12363 transitions. [2022-01-18 07:36:06,008 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) [2022-01-18 07:36:06,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 12363 transitions. [2022-01-18 07:36:06,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:06,016 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:06,016 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] [2022-01-18 07:36:06,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 07:36:06,016 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:06,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:06,016 INFO L85 PathProgramCache]: Analyzing trace with hash 554849640, now seen corresponding path program 7 times [2022-01-18 07:36:06,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:06,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501982365] [2022-01-18 07:36:06,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:06,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:06,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:06,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:06,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501982365] [2022-01-18 07:36:06,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501982365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:06,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:06,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:06,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266435271] [2022-01-18 07:36:06,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:06,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:06,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:06,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:06,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:06,307 INFO L87 Difference]: Start difference. First operand 3664 states and 12363 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:08,344 INFO L93 Difference]: Finished difference Result 6771 states and 22942 transitions. [2022-01-18 07:36:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 07:36:08,344 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:08,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:08,360 INFO L225 Difference]: With dead ends: 6771 [2022-01-18 07:36:08,360 INFO L226 Difference]: Without dead ends: 6704 [2022-01-18 07:36:08,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1220 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=371, Invalid=4051, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 07:36:08,362 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 449 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 3149 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 3204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:08,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [449 Valid, 2542 Invalid, 3204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3149 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:36:08,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6704 states. [2022-01-18 07:36:08,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6704 to 3680. [2022-01-18 07:36:08,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.371296547974993) internal successors, (12403), 3679 states have internal predecessors, (12403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:08,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12403 transitions. [2022-01-18 07:36:08,444 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12403 transitions. Word has length 39 [2022-01-18 07:36:08,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:08,445 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12403 transitions. [2022-01-18 07:36:08,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:08,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12403 transitions. [2022-01-18 07:36:08,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:08,452 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:08,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:08,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 07:36:08,453 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:08,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:08,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1164766330, now seen corresponding path program 8 times [2022-01-18 07:36:08,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:08,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119473772] [2022-01-18 07:36:08,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:08,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:08,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:08,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:08,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119473772] [2022-01-18 07:36:08,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119473772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:08,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:08,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:08,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7578897] [2022-01-18 07:36:08,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:08,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:08,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:08,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:08,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:08,707 INFO L87 Difference]: Start difference. First operand 3680 states and 12403 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:11,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:11,628 INFO L93 Difference]: Finished difference Result 8010 states and 27138 transitions. [2022-01-18 07:36:11,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-01-18 07:36:11,628 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:11,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:11,645 INFO L225 Difference]: With dead ends: 8010 [2022-01-18 07:36:11,645 INFO L226 Difference]: Without dead ends: 7967 [2022-01-18 07:36:11,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2522 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=617, Invalid=7215, Unknown=0, NotChecked=0, Total=7832 [2022-01-18 07:36:11,647 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 560 mSDsluCounter, 2976 mSDsCounter, 0 mSdLazyCounter, 3890 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 3980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 3890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:11,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 2916 Invalid, 3980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 3890 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:36:11,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7967 states. [2022-01-18 07:36:11,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7967 to 3702. [2022-01-18 07:36:11,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3702 states, 3701 states have (on average 3.368819238043772) internal successors, (12468), 3701 states have internal predecessors, (12468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:11,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3702 states to 3702 states and 12468 transitions. [2022-01-18 07:36:11,735 INFO L78 Accepts]: Start accepts. Automaton has 3702 states and 12468 transitions. Word has length 39 [2022-01-18 07:36:11,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:11,735 INFO L470 AbstractCegarLoop]: Abstraction has 3702 states and 12468 transitions. [2022-01-18 07:36:11,735 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) [2022-01-18 07:36:11,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3702 states and 12468 transitions. [2022-01-18 07:36:11,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:11,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:11,742 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] [2022-01-18 07:36:11,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 07:36:11,742 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:11,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:11,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1349602664, now seen corresponding path program 9 times [2022-01-18 07:36:11,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:11,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266876529] [2022-01-18 07:36:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:11,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:11,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:11,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:11,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266876529] [2022-01-18 07:36:11,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266876529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:11,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:11,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:11,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342237435] [2022-01-18 07:36:11,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:11,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:11,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:11,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:11,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:11,989 INFO L87 Difference]: Start difference. First operand 3702 states and 12468 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:14,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:14,933 INFO L93 Difference]: Finished difference Result 8583 states and 29261 transitions. [2022-01-18 07:36:14,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-01-18 07:36:14,933 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:14,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:14,951 INFO L225 Difference]: With dead ends: 8583 [2022-01-18 07:36:14,952 INFO L226 Difference]: Without dead ends: 8519 [2022-01-18 07:36:14,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2448 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=606, Invalid=7050, Unknown=0, NotChecked=0, Total=7656 [2022-01-18 07:36:14,954 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 574 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 3958 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 4068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 3958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:14,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [574 Valid, 2850 Invalid, 4068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 3958 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:36:14,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8519 states. [2022-01-18 07:36:15,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8519 to 3672. [2022-01-18 07:36:15,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3671 states have (on average 3.374284935984745) internal successors, (12387), 3671 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) [2022-01-18 07:36:15,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 12387 transitions. [2022-01-18 07:36:15,041 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 12387 transitions. Word has length 39 [2022-01-18 07:36:15,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:15,042 INFO L470 AbstractCegarLoop]: Abstraction has 3672 states and 12387 transitions. [2022-01-18 07:36:15,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:15,042 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 12387 transitions. [2022-01-18 07:36:15,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:15,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:15,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:15,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 07:36:15,049 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:15,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:15,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1970037064, now seen corresponding path program 10 times [2022-01-18 07:36:15,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:15,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143941220] [2022-01-18 07:36:15,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:15,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:15,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:15,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:15,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143941220] [2022-01-18 07:36:15,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143941220] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:15,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:15,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:15,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332207555] [2022-01-18 07:36:15,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:15,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:15,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:15,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:15,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:15,293 INFO L87 Difference]: Start difference. First operand 3672 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) [2022-01-18 07:36:16,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:16,536 INFO L93 Difference]: Finished difference Result 5369 states and 18355 transitions. [2022-01-18 07:36:16,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 07:36:16,537 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 [2022-01-18 07:36:16,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:16,548 INFO L225 Difference]: With dead ends: 5369 [2022-01-18 07:36:16,548 INFO L226 Difference]: Without dead ends: 5302 [2022-01-18 07:36:16,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=214, Invalid=1948, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 07:36:16,549 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 324 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 2145 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:16,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 1508 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2145 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:36:16,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-01-18 07:36:16,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 3680. [2022-01-18 07:36:16,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.371296547974993) internal successors, (12403), 3679 states have internal predecessors, (12403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:16,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12403 transitions. [2022-01-18 07:36:16,646 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12403 transitions. Word has length 39 [2022-01-18 07:36:16,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:16,646 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12403 transitions. [2022-01-18 07:36:16,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:16,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12403 transitions. [2022-01-18 07:36:16,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:16,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:16,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:16,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 07:36:16,656 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:16,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:16,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1839442216, now seen corresponding path program 11 times [2022-01-18 07:36:16,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:16,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828313033] [2022-01-18 07:36:16,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:16,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:16,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:16,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828313033] [2022-01-18 07:36:16,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828313033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:16,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:16,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:16,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646210342] [2022-01-18 07:36:16,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:16,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:16,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:16,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:16,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:16,915 INFO L87 Difference]: Start difference. First operand 3680 states and 12403 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:18,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:18,153 INFO L93 Difference]: Finished difference Result 5357 states and 18315 transitions. [2022-01-18 07:36:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 07:36:18,154 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:18,166 INFO L225 Difference]: With dead ends: 5357 [2022-01-18 07:36:18,166 INFO L226 Difference]: Without dead ends: 5294 [2022-01-18 07:36:18,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 07:36:18,168 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 338 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 2173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:18,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 1519 Invalid, 2173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:36:18,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2022-01-18 07:36:18,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 3672. [2022-01-18 07:36:18,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3671 states have (on average 3.3731953146281666) internal successors, (12383), 3671 states have internal predecessors, (12383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 12383 transitions. [2022-01-18 07:36:18,234 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 12383 transitions. Word has length 39 [2022-01-18 07:36:18,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:18,234 INFO L470 AbstractCegarLoop]: Abstraction has 3672 states and 12383 transitions. [2022-01-18 07:36:18,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:18,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 12383 transitions. [2022-01-18 07:36:18,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:18,241 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:18,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:18,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 07:36:18,241 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:18,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:18,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1703763624, now seen corresponding path program 12 times [2022-01-18 07:36:18,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:18,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122056665] [2022-01-18 07:36:18,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:18,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:18,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:18,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122056665] [2022-01-18 07:36:18,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122056665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:18,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:18,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:18,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071498502] [2022-01-18 07:36:18,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:18,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:18,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:18,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:18,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:18,468 INFO L87 Difference]: Start difference. First operand 3672 states and 12383 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:20,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:20,290 INFO L93 Difference]: Finished difference Result 5886 states and 20058 transitions. [2022-01-18 07:36:20,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-01-18 07:36:20,291 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:20,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:20,303 INFO L225 Difference]: With dead ends: 5886 [2022-01-18 07:36:20,303 INFO L226 Difference]: Without dead ends: 5843 [2022-01-18 07:36:20,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1130 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=372, Invalid=3788, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 07:36:20,306 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 455 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 2546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:20,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [455 Valid, 1668 Invalid, 2546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:36:20,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5843 states. [2022-01-18 07:36:20,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5843 to 3680. [2022-01-18 07:36:20,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.371296547974993) internal successors, (12403), 3679 states have internal predecessors, (12403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:20,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12403 transitions. [2022-01-18 07:36:20,387 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12403 transitions. Word has length 39 [2022-01-18 07:36:20,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:20,387 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12403 transitions. [2022-01-18 07:36:20,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:20,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12403 transitions. [2022-01-18 07:36:20,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:20,394 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:20,394 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] [2022-01-18 07:36:20,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 07:36:20,394 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:20,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:20,395 INFO L85 PathProgramCache]: Analyzing trace with hash -76834678, now seen corresponding path program 13 times [2022-01-18 07:36:20,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:20,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387303726] [2022-01-18 07:36:20,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:20,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:20,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:20,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:20,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387303726] [2022-01-18 07:36:20,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387303726] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:20,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:20,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:20,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911688329] [2022-01-18 07:36:20,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:20,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:20,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:20,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:20,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:20,647 INFO L87 Difference]: Start difference. First operand 3680 states and 12403 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:22,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:22,628 INFO L93 Difference]: Finished difference Result 6732 states and 22949 transitions. [2022-01-18 07:36:22,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-18 07:36:22,628 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:22,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:22,641 INFO L225 Difference]: With dead ends: 6732 [2022-01-18 07:36:22,641 INFO L226 Difference]: Without dead ends: 6680 [2022-01-18 07:36:22,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1378 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=407, Invalid=4423, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 07:36:22,643 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 497 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 2756 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:22,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 1983 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2756 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:36:22,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2022-01-18 07:36:22,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 3674. [2022-01-18 07:36:22,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3673 states have (on average 3.3727198475360742) internal successors, (12388), 3673 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:22,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 12388 transitions. [2022-01-18 07:36:22,733 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 12388 transitions. Word has length 39 [2022-01-18 07:36:22,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:22,733 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 12388 transitions. [2022-01-18 07:36:22,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:22,733 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 12388 transitions. [2022-01-18 07:36:22,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:22,739 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:22,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:22,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 07:36:22,740 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:22,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:22,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1672720102, now seen corresponding path program 14 times [2022-01-18 07:36:22,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:22,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421967571] [2022-01-18 07:36:22,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:22,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:22,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:22,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:22,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421967571] [2022-01-18 07:36:22,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421967571] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:22,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:22,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:22,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690492831] [2022-01-18 07:36:22,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:22,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:22,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:22,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:22,979 INFO L87 Difference]: Start difference. First operand 3674 states and 12388 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:24,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:24,260 INFO L93 Difference]: Finished difference Result 5446 states and 18508 transitions. [2022-01-18 07:36:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 07:36:24,261 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:24,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:24,271 INFO L225 Difference]: With dead ends: 5446 [2022-01-18 07:36:24,272 INFO L226 Difference]: Without dead ends: 5391 [2022-01-18 07:36:24,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=240, Invalid=2210, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 07:36:24,273 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 367 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:24,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 1515 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:36:24,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5391 states. [2022-01-18 07:36:24,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5391 to 3676. [2022-01-18 07:36:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3676 states, 3675 states have (on average 3.371700680272109) internal successors, (12391), 3675 states have internal predecessors, (12391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:24,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3676 states to 3676 states and 12391 transitions. [2022-01-18 07:36:24,334 INFO L78 Accepts]: Start accepts. Automaton has 3676 states and 12391 transitions. Word has length 39 [2022-01-18 07:36:24,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:24,334 INFO L470 AbstractCegarLoop]: Abstraction has 3676 states and 12391 transitions. [2022-01-18 07:36:24,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:24,334 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 12391 transitions. [2022-01-18 07:36:24,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:24,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:24,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:24,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 07:36:24,340 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:24,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:24,341 INFO L85 PathProgramCache]: Analyzing trace with hash -500067880, now seen corresponding path program 15 times [2022-01-18 07:36:24,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:24,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846304622] [2022-01-18 07:36:24,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:24,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:24,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:24,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846304622] [2022-01-18 07:36:24,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846304622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:24,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:24,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:24,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205974226] [2022-01-18 07:36:24,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:24,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:24,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:24,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:24,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:24,575 INFO L87 Difference]: Start difference. First operand 3676 states and 12391 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:26,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:26,065 INFO L93 Difference]: Finished difference Result 6214 states and 21239 transitions. [2022-01-18 07:36:26,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 07:36:26,065 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:26,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:26,077 INFO L225 Difference]: With dead ends: 6214 [2022-01-18 07:36:26,077 INFO L226 Difference]: Without dead ends: 6150 [2022-01-18 07:36:26,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=267, Invalid=2595, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:36:26,078 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 364 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:26,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 1854 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2462 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:36:26,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2022-01-18 07:36:26,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 3670. [2022-01-18 07:36:26,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 3669 states have (on average 3.373671300081766) internal successors, (12378), 3669 states have internal predecessors, (12378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:26,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 12378 transitions. [2022-01-18 07:36:26,135 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 12378 transitions. Word has length 39 [2022-01-18 07:36:26,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:26,135 INFO L470 AbstractCegarLoop]: Abstraction has 3670 states and 12378 transitions. [2022-01-18 07:36:26,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:26,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 12378 transitions. [2022-01-18 07:36:26,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:26,141 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:26,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:26,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 07:36:26,142 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:26,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:26,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1741980442, now seen corresponding path program 16 times [2022-01-18 07:36:26,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:26,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798271144] [2022-01-18 07:36:26,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:26,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:26,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:26,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:26,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798271144] [2022-01-18 07:36:26,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798271144] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:26,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:26,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:26,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958040897] [2022-01-18 07:36:26,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:26,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:26,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:26,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:26,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:26,382 INFO L87 Difference]: Start difference. First operand 3670 states and 12378 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:29,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:29,551 INFO L93 Difference]: Finished difference Result 8269 states and 28029 transitions. [2022-01-18 07:36:29,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-01-18 07:36:29,552 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:29,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:29,567 INFO L225 Difference]: With dead ends: 8269 [2022-01-18 07:36:29,568 INFO L226 Difference]: Without dead ends: 8132 [2022-01-18 07:36:29,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2947 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=681, Invalid=8249, Unknown=0, NotChecked=0, Total=8930 [2022-01-18 07:36:29,569 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 618 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 4565 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 4673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 4565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:29,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [618 Valid, 3195 Invalid, 4673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 4565 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:36:29,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8132 states. [2022-01-18 07:36:29,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8132 to 3674. [2022-01-18 07:36:29,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3673 states have (on average 3.3727198475360742) internal successors, (12388), 3673 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:29,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 12388 transitions. [2022-01-18 07:36:29,637 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 12388 transitions. Word has length 39 [2022-01-18 07:36:29,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:29,637 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 12388 transitions. [2022-01-18 07:36:29,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 12388 transitions. [2022-01-18 07:36:29,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:29,643 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:29,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:29,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 07:36:29,643 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:29,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:29,643 INFO L85 PathProgramCache]: Analyzing trace with hash 247089542, now seen corresponding path program 17 times [2022-01-18 07:36:29,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:29,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327971453] [2022-01-18 07:36:29,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:29,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:29,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:29,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:29,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327971453] [2022-01-18 07:36:29,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327971453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:29,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:29,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:29,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751054313] [2022-01-18 07:36:29,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:29,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:29,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:29,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:29,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:29,892 INFO L87 Difference]: Start difference. First operand 3674 states and 12388 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:31,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:31,617 INFO L93 Difference]: Finished difference Result 5915 states and 20130 transitions. [2022-01-18 07:36:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 07:36:31,618 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 [2022-01-18 07:36:31,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:31,632 INFO L225 Difference]: With dead ends: 5915 [2022-01-18 07:36:31,632 INFO L226 Difference]: Without dead ends: 5851 [2022-01-18 07:36:31,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=347, Invalid=3559, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 07:36:31,633 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 457 mSDsluCounter, 1853 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 2571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:31,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 1650 Invalid, 2571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2494 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:36:31,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5851 states. [2022-01-18 07:36:31,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5851 to 3674. [2022-01-18 07:36:31,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3674 states, 3673 states have (on average 3.3727198475360742) internal successors, (12388), 3673 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:31,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 12388 transitions. [2022-01-18 07:36:31,725 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 12388 transitions. Word has length 39 [2022-01-18 07:36:31,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:31,725 INFO L470 AbstractCegarLoop]: Abstraction has 3674 states and 12388 transitions. [2022-01-18 07:36:31,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:31,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 12388 transitions. [2022-01-18 07:36:31,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:31,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:31,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:31,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 07:36:31,731 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:31,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:31,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1165573112, now seen corresponding path program 18 times [2022-01-18 07:36:31,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:31,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075534973] [2022-01-18 07:36:31,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:31,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:31,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:31,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:31,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075534973] [2022-01-18 07:36:31,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075534973] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:31,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:31,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:31,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819822414] [2022-01-18 07:36:31,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:31,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:31,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:31,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:31,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:31,983 INFO L87 Difference]: Start difference. First operand 3674 states and 12388 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:33,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:33,288 INFO L93 Difference]: Finished difference Result 5506 states and 18666 transitions. [2022-01-18 07:36:33,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 07:36:33,289 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:33,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:33,300 INFO L225 Difference]: With dead ends: 5506 [2022-01-18 07:36:33,300 INFO L226 Difference]: Without dead ends: 5451 [2022-01-18 07:36:33,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=222, Invalid=2130, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 07:36:33,301 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 366 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:33,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 1583 Invalid, 2343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:36:33,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5451 states. [2022-01-18 07:36:33,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5451 to 3680. [2022-01-18 07:36:33,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 3.3707529219896712) internal successors, (12401), 3679 states have internal predecessors, (12401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:33,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 12401 transitions. [2022-01-18 07:36:33,359 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 12401 transitions. Word has length 39 [2022-01-18 07:36:33,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:33,359 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 12401 transitions. [2022-01-18 07:36:33,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:33,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 12401 transitions. [2022-01-18 07:36:33,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:33,365 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:33,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:33,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 07:36:33,365 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:33,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:33,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1956741962, now seen corresponding path program 19 times [2022-01-18 07:36:33,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:33,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899814352] [2022-01-18 07:36:33,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:33,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:33,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:33,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:33,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899814352] [2022-01-18 07:36:33,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899814352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:33,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:33,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:33,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003588255] [2022-01-18 07:36:33,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:33,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:33,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:33,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:33,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:33,582 INFO L87 Difference]: Start difference. First operand 3680 states and 12401 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:35,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:35,070 INFO L93 Difference]: Finished difference Result 6334 states and 21534 transitions. [2022-01-18 07:36:35,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 07:36:35,075 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 [2022-01-18 07:36:35,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:35,087 INFO L225 Difference]: With dead ends: 6334 [2022-01-18 07:36:35,088 INFO L226 Difference]: Without dead ends: 6274 [2022-01-18 07:36:35,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=268, Invalid=2702, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 07:36:35,088 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 408 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 2577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:35,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 1857 Invalid, 2577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:36:35,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6274 states. [2022-01-18 07:36:35,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6274 to 3678. [2022-01-18 07:36:35,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3678 states, 3677 states have (on average 3.3712265433777535) internal successors, (12396), 3677 states have internal predecessors, (12396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:35,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 12396 transitions. [2022-01-18 07:36:35,146 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 12396 transitions. Word has length 39 [2022-01-18 07:36:35,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:35,146 INFO L470 AbstractCegarLoop]: Abstraction has 3678 states and 12396 transitions. [2022-01-18 07:36:35,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:35,146 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 12396 transitions. [2022-01-18 07:36:35,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:35,151 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:35,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:35,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 07:36:35,151 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:35,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:35,151 INFO L85 PathProgramCache]: Analyzing trace with hash 258658792, now seen corresponding path program 20 times [2022-01-18 07:36:35,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:35,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944447733] [2022-01-18 07:36:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:35,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:35,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:35,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944447733] [2022-01-18 07:36:35,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944447733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:35,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:35,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 07:36:35,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958141596] [2022-01-18 07:36:35,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:35,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 07:36:35,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:35,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 07:36:35,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 07:36:35,361 INFO L87 Difference]: Start difference. First operand 3678 states and 12396 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) [2022-01-18 07:36:36,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:36,738 INFO L93 Difference]: Finished difference Result 6245 states and 21321 transitions. [2022-01-18 07:36:36,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 07:36:36,738 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 [2022-01-18 07:36:36,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:36,751 INFO L225 Difference]: With dead ends: 6245 [2022-01-18 07:36:36,751 INFO L226 Difference]: Without dead ends: 6169 [2022-01-18 07:36:36,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=243, Invalid=2307, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 07:36:36,752 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 362 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:36,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1691 Invalid, 2364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:36:36,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-01-18 07:36:36,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 3686. [2022-01-18 07:36:36,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3686 states, 3685 states have (on average 3.368249660786974) internal successors, (12412), 3685 states have internal predecessors, (12412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:36,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 12412 transitions. [2022-01-18 07:36:36,815 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 12412 transitions. Word has length 39 [2022-01-18 07:36:36,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:36,816 INFO L470 AbstractCegarLoop]: Abstraction has 3686 states and 12412 transitions. [2022-01-18 07:36:36,816 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) [2022-01-18 07:36:36,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 12412 transitions. [2022-01-18 07:36:36,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:36,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:36,821 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] [2022-01-18 07:36:36,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 07:36:36,821 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:36,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:36,821 INFO L85 PathProgramCache]: Analyzing trace with hash -759394820, now seen corresponding path program 21 times [2022-01-18 07:36:36,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:36,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199532777] [2022-01-18 07:36:36,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:36,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:37,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:37,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:37,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199532777] [2022-01-18 07:36:37,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199532777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:37,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:37,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:37,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137977956] [2022-01-18 07:36:37,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:37,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:37,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:37,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:37,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:37,053 INFO L87 Difference]: Start difference. First operand 3686 states and 12412 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:38,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:38,512 INFO L93 Difference]: Finished difference Result 6227 states and 21267 transitions. [2022-01-18 07:36:38,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:36:38,512 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:38,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:38,524 INFO L225 Difference]: With dead ends: 6227 [2022-01-18 07:36:38,524 INFO L226 Difference]: Without dead ends: 6149 [2022-01-18 07:36:38,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=259, Invalid=2603, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:36:38,525 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 393 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 2475 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:38,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [393 Valid, 1850 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2475 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:36:38,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6149 states. [2022-01-18 07:36:38,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6149 to 3666. [2022-01-18 07:36:38,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 3665 states have (on average 3.3735334242837656) internal successors, (12364), 3665 states have internal predecessors, (12364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:38,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 12364 transitions. [2022-01-18 07:36:38,582 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 12364 transitions. Word has length 39 [2022-01-18 07:36:38,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:38,582 INFO L470 AbstractCegarLoop]: Abstraction has 3666 states and 12364 transitions. [2022-01-18 07:36:38,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:38,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 12364 transitions. [2022-01-18 07:36:38,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:38,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:38,588 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] [2022-01-18 07:36:38,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 07:36:38,588 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:38,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:38,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1124716894, now seen corresponding path program 22 times [2022-01-18 07:36:38,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:38,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667561085] [2022-01-18 07:36:38,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:38,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:38,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:38,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:38,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667561085] [2022-01-18 07:36:38,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667561085] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:38,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:38,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:38,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684887561] [2022-01-18 07:36:38,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:38,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:38,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:38,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:38,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:38,808 INFO L87 Difference]: Start difference. First operand 3666 states and 12364 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:40,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:40,825 INFO L93 Difference]: Finished difference Result 6811 states and 23006 transitions. [2022-01-18 07:36:40,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-18 07:36:40,851 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:40,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:40,865 INFO L225 Difference]: With dead ends: 6811 [2022-01-18 07:36:40,865 INFO L226 Difference]: Without dead ends: 6744 [2022-01-18 07:36:40,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1119 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=354, Invalid=3806, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 07:36:40,868 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 461 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 3317 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 3369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:40,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 2653 Invalid, 3369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3317 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:36:40,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6744 states. [2022-01-18 07:36:40,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6744 to 3744. [2022-01-18 07:36:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 3743 states have (on average 3.3745658562650283) internal successors, (12631), 3743 states have internal predecessors, (12631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:40,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 12631 transitions. [2022-01-18 07:36:40,935 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 12631 transitions. Word has length 39 [2022-01-18 07:36:40,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:40,935 INFO L470 AbstractCegarLoop]: Abstraction has 3744 states and 12631 transitions. [2022-01-18 07:36:40,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:40,935 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 12631 transitions. [2022-01-18 07:36:40,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:40,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:40,940 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] [2022-01-18 07:36:40,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 07:36:40,941 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:40,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:40,941 INFO L85 PathProgramCache]: Analyzing trace with hash -594899076, now seen corresponding path program 23 times [2022-01-18 07:36:40,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:40,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306274573] [2022-01-18 07:36:40,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:40,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:41,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:41,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:41,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306274573] [2022-01-18 07:36:41,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306274573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:41,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:41,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:41,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322344401] [2022-01-18 07:36:41,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:41,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:41,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:41,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:41,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:41,164 INFO L87 Difference]: Start difference. First operand 3744 states and 12631 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:43,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:43,926 INFO L93 Difference]: Finished difference Result 8158 states and 27612 transitions. [2022-01-18 07:36:43,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-01-18 07:36:43,927 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:43,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:43,943 INFO L225 Difference]: With dead ends: 8158 [2022-01-18 07:36:43,943 INFO L226 Difference]: Without dead ends: 8115 [2022-01-18 07:36:43,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2311 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=586, Invalid=6724, Unknown=0, NotChecked=0, Total=7310 [2022-01-18 07:36:43,944 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 570 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 4029 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 4117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 4029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:43,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [570 Valid, 3010 Invalid, 4117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 4029 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:36:43,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2022-01-18 07:36:44,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 3846. [2022-01-18 07:36:44,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3846 states, 3845 states have (on average 3.376332899869961) internal successors, (12982), 3845 states have internal predecessors, (12982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:44,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3846 states to 3846 states and 12982 transitions. [2022-01-18 07:36:44,016 INFO L78 Accepts]: Start accepts. Automaton has 3846 states and 12982 transitions. Word has length 39 [2022-01-18 07:36:44,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:44,016 INFO L470 AbstractCegarLoop]: Abstraction has 3846 states and 12982 transitions. [2022-01-18 07:36:44,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:44,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3846 states and 12982 transitions. [2022-01-18 07:36:44,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:44,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:44,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:44,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 07:36:44,022 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:44,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:44,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1919469918, now seen corresponding path program 24 times [2022-01-18 07:36:44,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:44,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480407165] [2022-01-18 07:36:44,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:44,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:44,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:44,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:44,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480407165] [2022-01-18 07:36:44,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480407165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:44,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:44,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:44,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525912376] [2022-01-18 07:36:44,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:44,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:44,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:44,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:44,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:44,245 INFO L87 Difference]: Start difference. First operand 3846 states and 12982 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:47,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:47,066 INFO L93 Difference]: Finished difference Result 8413 states and 28598 transitions. [2022-01-18 07:36:47,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 07:36:47,066 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 [2022-01-18 07:36:47,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:47,083 INFO L225 Difference]: With dead ends: 8413 [2022-01-18 07:36:47,083 INFO L226 Difference]: Without dead ends: 8349 [2022-01-18 07:36:47,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2306 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=585, Invalid=6725, Unknown=0, NotChecked=0, Total=7310 [2022-01-18 07:36:47,084 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 571 mSDsluCounter, 2998 mSDsCounter, 0 mSdLazyCounter, 4092 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 4202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 4092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:47,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 2962 Invalid, 4202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 4092 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:36:47,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8349 states. [2022-01-18 07:36:47,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8349 to 3816. [2022-01-18 07:36:47,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3816 states, 3815 states have (on average 3.381651376146789) internal successors, (12901), 3815 states have internal predecessors, (12901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:47,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3816 states to 3816 states and 12901 transitions. [2022-01-18 07:36:47,157 INFO L78 Accepts]: Start accepts. Automaton has 3816 states and 12901 transitions. Word has length 39 [2022-01-18 07:36:47,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:47,157 INFO L470 AbstractCegarLoop]: Abstraction has 3816 states and 12901 transitions. [2022-01-18 07:36:47,157 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) [2022-01-18 07:36:47,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3816 states and 12901 transitions. [2022-01-18 07:36:47,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:47,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:47,163 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] [2022-01-18 07:36:47,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 07:36:47,163 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:47,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:47,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1755062978, now seen corresponding path program 25 times [2022-01-18 07:36:47,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:47,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950699895] [2022-01-18 07:36:47,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:47,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:47,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:47,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950699895] [2022-01-18 07:36:47,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950699895] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:47,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:47,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:47,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772705573] [2022-01-18 07:36:47,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:47,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:47,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:47,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:47,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:47,398 INFO L87 Difference]: Start difference. First operand 3816 states and 12901 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:48,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:48,613 INFO L93 Difference]: Finished difference Result 5619 states and 19160 transitions. [2022-01-18 07:36:48,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 07:36:48,613 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:48,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:48,624 INFO L225 Difference]: With dead ends: 5619 [2022-01-18 07:36:48,624 INFO L226 Difference]: Without dead ends: 5552 [2022-01-18 07:36:48,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=205, Invalid=1865, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 07:36:48,625 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 342 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1609 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:48,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 1609 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:36:48,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5552 states. [2022-01-18 07:36:48,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5552 to 3844. [2022-01-18 07:36:48,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3844 states, 3843 states have (on average 3.3778298204527712) internal successors, (12981), 3843 states have internal predecessors, (12981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:48,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3844 states to 3844 states and 12981 transitions. [2022-01-18 07:36:48,687 INFO L78 Accepts]: Start accepts. Automaton has 3844 states and 12981 transitions. Word has length 39 [2022-01-18 07:36:48,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:48,687 INFO L470 AbstractCegarLoop]: Abstraction has 3844 states and 12981 transitions. [2022-01-18 07:36:48,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:48,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3844 states and 12981 transitions. [2022-01-18 07:36:48,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:48,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:48,692 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] [2022-01-18 07:36:48,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 07:36:48,693 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:48,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:48,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1885657826, now seen corresponding path program 26 times [2022-01-18 07:36:48,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:48,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656805813] [2022-01-18 07:36:48,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:48,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:48,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:48,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656805813] [2022-01-18 07:36:48,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656805813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:48,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:48,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:48,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167818003] [2022-01-18 07:36:48,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:48,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:48,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:48,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:48,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:48,922 INFO L87 Difference]: Start difference. First operand 3844 states and 12981 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:50,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:50,199 INFO L93 Difference]: Finished difference Result 5607 states and 19120 transitions. [2022-01-18 07:36:50,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 07:36:50,199 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:50,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:50,211 INFO L225 Difference]: With dead ends: 5607 [2022-01-18 07:36:50,212 INFO L226 Difference]: Without dead ends: 5544 [2022-01-18 07:36:50,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=2037, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 07:36:50,212 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 348 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:50,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 1633 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:36:50,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5544 states. [2022-01-18 07:36:50,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5544 to 3836. [2022-01-18 07:36:50,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3836 states, 3835 states have (on average 3.3796610169491523) internal successors, (12961), 3835 states have internal predecessors, (12961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:50,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3836 states to 3836 states and 12961 transitions. [2022-01-18 07:36:50,275 INFO L78 Accepts]: Start accepts. Automaton has 3836 states and 12961 transitions. Word has length 39 [2022-01-18 07:36:50,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:50,275 INFO L470 AbstractCegarLoop]: Abstraction has 3836 states and 12961 transitions. [2022-01-18 07:36:50,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:50,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3836 states and 12961 transitions. [2022-01-18 07:36:50,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:50,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:50,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:50,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 07:36:50,281 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:50,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:50,281 INFO L85 PathProgramCache]: Analyzing trace with hash -2021336418, now seen corresponding path program 27 times [2022-01-18 07:36:50,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:50,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716900405] [2022-01-18 07:36:50,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:50,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:50,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:50,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:50,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716900405] [2022-01-18 07:36:50,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716900405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:50,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:50,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:50,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480995035] [2022-01-18 07:36:50,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:50,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:50,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:50,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:50,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:50,522 INFO L87 Difference]: Start difference. First operand 3836 states and 12961 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:52,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:52,305 INFO L93 Difference]: Finished difference Result 6152 states and 20955 transitions. [2022-01-18 07:36:52,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 07:36:52,305 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:52,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:52,335 INFO L225 Difference]: With dead ends: 6152 [2022-01-18 07:36:52,336 INFO L226 Difference]: Without dead ends: 6109 [2022-01-18 07:36:52,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=367, Invalid=3793, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 07:36:52,336 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 469 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:52,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 1778 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:36:52,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6109 states. [2022-01-18 07:36:52,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6109 to 3864. [2022-01-18 07:36:52,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3864 states, 3863 states have (on average 3.3779446026404347) internal successors, (13049), 3863 states have internal predecessors, (13049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:52,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 13049 transitions. [2022-01-18 07:36:52,392 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 13049 transitions. Word has length 39 [2022-01-18 07:36:52,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:52,392 INFO L470 AbstractCegarLoop]: Abstraction has 3864 states and 13049 transitions. [2022-01-18 07:36:52,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:52,392 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 13049 transitions. [2022-01-18 07:36:52,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:52,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:52,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:36:52,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 07:36:52,397 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:52,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:52,398 INFO L85 PathProgramCache]: Analyzing trace with hash 493032576, now seen corresponding path program 28 times [2022-01-18 07:36:52,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:52,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643141899] [2022-01-18 07:36:52,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:52,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:52,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:52,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:52,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643141899] [2022-01-18 07:36:52,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643141899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:52,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:52,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:52,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570782537] [2022-01-18 07:36:52,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:52,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:52,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:52,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:52,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:52,611 INFO L87 Difference]: Start difference. First operand 3864 states and 13049 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:54,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:54,583 INFO L93 Difference]: Finished difference Result 6998 states and 23846 transitions. [2022-01-18 07:36:54,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 07:36:54,584 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:54,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:54,603 INFO L225 Difference]: With dead ends: 6998 [2022-01-18 07:36:54,603 INFO L226 Difference]: Without dead ends: 6946 [2022-01-18 07:36:54,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=402, Invalid=4428, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 07:36:54,605 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 510 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 2973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:54,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 2093 Invalid, 2973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:36:54,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2022-01-18 07:36:54,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 3852. [2022-01-18 07:36:54,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3852 states, 3851 states have (on average 3.379641651519086) internal successors, (13015), 3851 states have internal predecessors, (13015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:54,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3852 states to 3852 states and 13015 transitions. [2022-01-18 07:36:54,682 INFO L78 Accepts]: Start accepts. Automaton has 3852 states and 13015 transitions. Word has length 39 [2022-01-18 07:36:54,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:54,682 INFO L470 AbstractCegarLoop]: Abstraction has 3852 states and 13015 transitions. [2022-01-18 07:36:54,682 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) [2022-01-18 07:36:54,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3852 states and 13015 transitions. [2022-01-18 07:36:54,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:54,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:54,688 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] [2022-01-18 07:36:54,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 07:36:54,688 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:54,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:54,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1102852848, now seen corresponding path program 29 times [2022-01-18 07:36:54,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:54,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598299626] [2022-01-18 07:36:54,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:54,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:54,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:54,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:54,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598299626] [2022-01-18 07:36:54,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598299626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:54,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:54,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:54,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694823651] [2022-01-18 07:36:54,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:54,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:54,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:54,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:54,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:54,932 INFO L87 Difference]: Start difference. First operand 3852 states and 13015 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:56,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:56,325 INFO L93 Difference]: Finished difference Result 5751 states and 19448 transitions. [2022-01-18 07:36:56,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 07:36:56,326 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:56,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:56,337 INFO L225 Difference]: With dead ends: 5751 [2022-01-18 07:36:56,337 INFO L226 Difference]: Without dead ends: 5696 [2022-01-18 07:36:56,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=248, Invalid=2302, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 07:36:56,338 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 375 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:56,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1651 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2352 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:36:56,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5696 states. [2022-01-18 07:36:56,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5696 to 3854. [2022-01-18 07:36:56,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.3786659745652736) internal successors, (13018), 3853 states have internal predecessors, (13018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:56,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 13018 transitions. [2022-01-18 07:36:56,396 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 13018 transitions. Word has length 39 [2022-01-18 07:36:56,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:56,396 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 13018 transitions. [2022-01-18 07:36:56,396 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) [2022-01-18 07:36:56,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 13018 transitions. [2022-01-18 07:36:56,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:56,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:56,402 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] [2022-01-18 07:36:56,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 07:36:56,402 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:56,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:56,403 INFO L85 PathProgramCache]: Analyzing trace with hash 69799374, now seen corresponding path program 30 times [2022-01-18 07:36:56,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:56,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65820161] [2022-01-18 07:36:56,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:56,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:56,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:56,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:56,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65820161] [2022-01-18 07:36:56,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65820161] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:56,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:56,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:56,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766288466] [2022-01-18 07:36:56,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:56,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:56,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:56,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:56,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:56,611 INFO L87 Difference]: Start difference. First operand 3854 states and 13018 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:58,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:58,119 INFO L93 Difference]: Finished difference Result 6544 states and 22225 transitions. [2022-01-18 07:36:58,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 07:36:58,119 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:58,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:58,135 INFO L225 Difference]: With dead ends: 6544 [2022-01-18 07:36:58,135 INFO L226 Difference]: Without dead ends: 6498 [2022-01-18 07:36:58,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=265, Invalid=2597, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:36:58,136 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 398 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 2689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:58,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 1984 Invalid, 2689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:36:58,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6498 states. [2022-01-18 07:36:58,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6498 to 3858. [2022-01-18 07:36:58,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3857 states have (on average 3.3772361939331086) internal successors, (13026), 3857 states have internal predecessors, (13026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:58,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 13026 transitions. [2022-01-18 07:36:58,204 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 13026 transitions. Word has length 39 [2022-01-18 07:36:58,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:58,205 INFO L470 AbstractCegarLoop]: Abstraction has 3858 states and 13026 transitions. [2022-01-18 07:36:58,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:58,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 13026 transitions. [2022-01-18 07:36:58,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:58,210 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:58,210 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] [2022-01-18 07:36:58,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 07:36:58,210 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:58,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:58,211 INFO L85 PathProgramCache]: Analyzing trace with hash -177666788, now seen corresponding path program 31 times [2022-01-18 07:36:58,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:58,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212879369] [2022-01-18 07:36:58,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:58,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:36:58,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:36:58,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:36:58,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212879369] [2022-01-18 07:36:58,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212879369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:36:58,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:36:58,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:36:58,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693122016] [2022-01-18 07:36:58,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:36:58,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:36:58,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:36:58,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:36:58,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:36:58,419 INFO L87 Difference]: Start difference. First operand 3858 states and 13026 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:59,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:36:59,860 INFO L93 Difference]: Finished difference Result 5686 states and 19337 transitions. [2022-01-18 07:36:59,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 07:36:59,860 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:36:59,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:36:59,871 INFO L225 Difference]: With dead ends: 5686 [2022-01-18 07:36:59,871 INFO L226 Difference]: Without dead ends: 5637 [2022-01-18 07:36:59,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=2394, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 07:36:59,872 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 366 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:36:59,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 1734 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:36:59,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5637 states. [2022-01-18 07:36:59,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5637 to 3848. [2022-01-18 07:36:59,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.3805562776189237) internal successors, (13005), 3847 states have internal predecessors, (13005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:59,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 13005 transitions. [2022-01-18 07:36:59,935 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 13005 transitions. Word has length 39 [2022-01-18 07:36:59,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:36:59,936 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 13005 transitions. [2022-01-18 07:36:59,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:36:59,936 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 13005 transitions. [2022-01-18 07:36:59,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:36:59,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:36:59,941 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] [2022-01-18 07:36:59,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 07:36:59,942 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:36:59,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:36:59,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1361208734, now seen corresponding path program 32 times [2022-01-18 07:36:59,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:36:59,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682361700] [2022-01-18 07:36:59,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:36:59,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:36:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:00,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:00,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:00,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682361700] [2022-01-18 07:37:00,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682361700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:00,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:00,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:00,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783560477] [2022-01-18 07:37:00,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:00,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:00,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:00,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:00,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:00,163 INFO L87 Difference]: Start difference. First operand 3848 states and 13005 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:01,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:01,379 INFO L93 Difference]: Finished difference Result 5607 states and 19154 transitions. [2022-01-18 07:37:01,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 07:37:01,379 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:01,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:01,390 INFO L225 Difference]: With dead ends: 5607 [2022-01-18 07:37:01,390 INFO L226 Difference]: Without dead ends: 5540 [2022-01-18 07:37:01,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=1627, Unknown=0, NotChecked=0, Total=1806 [2022-01-18 07:37:01,391 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 336 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:01,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1633 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:01,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5540 states. [2022-01-18 07:37:01,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5540 to 3888. [2022-01-18 07:37:01,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3888 states, 3887 states have (on average 3.373552868536146) internal successors, (13113), 3887 states have internal predecessors, (13113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:01,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3888 states to 3888 states and 13113 transitions. [2022-01-18 07:37:01,451 INFO L78 Accepts]: Start accepts. Automaton has 3888 states and 13113 transitions. Word has length 39 [2022-01-18 07:37:01,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:01,451 INFO L470 AbstractCegarLoop]: Abstraction has 3888 states and 13113 transitions. [2022-01-18 07:37:01,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:01,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3888 states and 13113 transitions. [2022-01-18 07:37:01,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:01,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:01,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:01,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 07:37:01,457 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:01,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:01,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1230613886, now seen corresponding path program 33 times [2022-01-18 07:37:01,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:01,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721349211] [2022-01-18 07:37:01,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:01,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:01,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:01,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:01,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721349211] [2022-01-18 07:37:01,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721349211] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:01,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:01,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:01,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910239825] [2022-01-18 07:37:01,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:01,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:01,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:01,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:01,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:01,683 INFO L87 Difference]: Start difference. First operand 3888 states and 13113 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:02,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:02,966 INFO L93 Difference]: Finished difference Result 5595 states and 19114 transitions. [2022-01-18 07:37:02,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 07:37:02,967 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:02,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:02,978 INFO L225 Difference]: With dead ends: 5595 [2022-01-18 07:37:02,979 INFO L226 Difference]: Without dead ends: 5532 [2022-01-18 07:37:02,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=187, Invalid=1705, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 07:37:02,979 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 347 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 2378 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:02,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1642 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2378 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:02,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5532 states. [2022-01-18 07:37:03,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5532 to 3880. [2022-01-18 07:37:03,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3880 states, 3879 states have (on average 3.3743232791956688) internal successors, (13089), 3879 states have internal predecessors, (13089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:03,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3880 states to 3880 states and 13089 transitions. [2022-01-18 07:37:03,041 INFO L78 Accepts]: Start accepts. Automaton has 3880 states and 13089 transitions. Word has length 39 [2022-01-18 07:37:03,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:03,041 INFO L470 AbstractCegarLoop]: Abstraction has 3880 states and 13089 transitions. [2022-01-18 07:37:03,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:03,041 INFO L276 IsEmpty]: Start isEmpty. Operand 3880 states and 13089 transitions. [2022-01-18 07:37:03,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:03,047 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:03,047 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] [2022-01-18 07:37:03,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 07:37:03,047 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:03,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:03,047 INFO L85 PathProgramCache]: Analyzing trace with hash 700713438, now seen corresponding path program 34 times [2022-01-18 07:37:03,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:03,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415494050] [2022-01-18 07:37:03,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:03,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:03,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:03,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:03,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415494050] [2022-01-18 07:37:03,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415494050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:03,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:03,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:03,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697713616] [2022-01-18 07:37:03,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:03,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:03,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:03,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:03,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:03,258 INFO L87 Difference]: Start difference. First operand 3880 states and 13089 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:04,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:04,477 INFO L93 Difference]: Finished difference Result 5619 states and 19174 transitions. [2022-01-18 07:37:04,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 07:37:04,478 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:04,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:04,489 INFO L225 Difference]: With dead ends: 5619 [2022-01-18 07:37:04,489 INFO L226 Difference]: Without dead ends: 5496 [2022-01-18 07:37:04,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=193, Invalid=1787, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 07:37:04,490 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 346 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:04,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 1712 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:04,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5496 states. [2022-01-18 07:37:04,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5496 to 3848. [2022-01-18 07:37:04,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.376397192617624) internal successors, (12989), 3847 states have internal predecessors, (12989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:04,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 12989 transitions. [2022-01-18 07:37:04,556 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 12989 transitions. Word has length 39 [2022-01-18 07:37:04,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:04,556 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 12989 transitions. [2022-01-18 07:37:04,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:04,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 12989 transitions. [2022-01-18 07:37:04,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:04,562 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:04,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:04,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 07:37:04,562 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:04,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:04,563 INFO L85 PathProgramCache]: Analyzing trace with hash -17697732, now seen corresponding path program 35 times [2022-01-18 07:37:04,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:04,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099746833] [2022-01-18 07:37:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:04,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:04,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:04,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:04,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099746833] [2022-01-18 07:37:04,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099746833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:04,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:04,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:04,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875035746] [2022-01-18 07:37:04,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:04,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:04,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:04,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:04,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:04,778 INFO L87 Difference]: Start difference. First operand 3848 states and 12989 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:06,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:06,591 INFO L93 Difference]: Finished difference Result 6258 states and 21345 transitions. [2022-01-18 07:37:06,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 07:37:06,591 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:06,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:06,603 INFO L225 Difference]: With dead ends: 6258 [2022-01-18 07:37:06,603 INFO L226 Difference]: Without dead ends: 6215 [2022-01-18 07:37:06,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1033 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=354, Invalid=3552, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 07:37:06,604 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 471 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 2673 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 2747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:06,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 1915 Invalid, 2747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2673 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:37:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6215 states. [2022-01-18 07:37:06,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6215 to 3862. [2022-01-18 07:37:06,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.374773374773375) internal successors, (13030), 3861 states have internal predecessors, (13030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:06,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13030 transitions. [2022-01-18 07:37:06,659 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13030 transitions. Word has length 39 [2022-01-18 07:37:06,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:06,659 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13030 transitions. [2022-01-18 07:37:06,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:06,659 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13030 transitions. [2022-01-18 07:37:06,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:06,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:06,664 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] [2022-01-18 07:37:06,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 07:37:06,664 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:06,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:06,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1798296034, now seen corresponding path program 36 times [2022-01-18 07:37:06,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:06,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686896297] [2022-01-18 07:37:06,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:06,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:06,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:06,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:06,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686896297] [2022-01-18 07:37:06,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686896297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:06,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:06,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:06,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576202543] [2022-01-18 07:37:06,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:06,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:06,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:06,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:06,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:06,882 INFO L87 Difference]: Start difference. First operand 3862 states and 13030 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:08,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:08,840 INFO L93 Difference]: Finished difference Result 7119 states and 24275 transitions. [2022-01-18 07:37:08,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-01-18 07:37:08,840 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:08,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:08,854 INFO L225 Difference]: With dead ends: 7119 [2022-01-18 07:37:08,855 INFO L226 Difference]: Without dead ends: 7067 [2022-01-18 07:37:08,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1323 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=396, Invalid=4296, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 07:37:08,856 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 516 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 2982 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:08,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 2252 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2982 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:37:08,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2022-01-18 07:37:08,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 3854. [2022-01-18 07:37:08,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.3765896703867115) internal successors, (13010), 3853 states have internal predecessors, (13010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:08,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 13010 transitions. [2022-01-18 07:37:08,924 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 13010 transitions. Word has length 39 [2022-01-18 07:37:08,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:08,924 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 13010 transitions. [2022-01-18 07:37:08,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:08,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 13010 transitions. [2022-01-18 07:37:08,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:08,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:08,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:08,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 07:37:08,929 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:08,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:08,929 INFO L85 PathProgramCache]: Analyzing trace with hash 900785838, now seen corresponding path program 37 times [2022-01-18 07:37:08,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:08,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144085208] [2022-01-18 07:37:08,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:08,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:09,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:09,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144085208] [2022-01-18 07:37:09,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144085208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:09,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:09,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:09,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524471121] [2022-01-18 07:37:09,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:09,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:09,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:09,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:09,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:09,168 INFO L87 Difference]: Start difference. First operand 3854 states and 13010 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:10,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:10,467 INFO L93 Difference]: Finished difference Result 5789 states and 19585 transitions. [2022-01-18 07:37:10,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 07:37:10,468 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:10,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:10,479 INFO L225 Difference]: With dead ends: 5789 [2022-01-18 07:37:10,479 INFO L226 Difference]: Without dead ends: 5734 [2022-01-18 07:37:10,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=235, Invalid=2117, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 07:37:10,480 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 399 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:10,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1665 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:10,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5734 states. [2022-01-18 07:37:10,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5734 to 3862. [2022-01-18 07:37:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.375809375809376) internal successors, (13034), 3861 states have internal predecessors, (13034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:10,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13034 transitions. [2022-01-18 07:37:10,536 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13034 transitions. Word has length 39 [2022-01-18 07:37:10,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:10,536 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13034 transitions. [2022-01-18 07:37:10,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:10,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13034 transitions. [2022-01-18 07:37:10,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:10,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:10,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:10,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 07:37:10,541 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:10,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:10,542 INFO L85 PathProgramCache]: Analyzing trace with hash 2073438060, now seen corresponding path program 38 times [2022-01-18 07:37:10,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:10,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304226308] [2022-01-18 07:37:10,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:10,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:10,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:10,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:10,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304226308] [2022-01-18 07:37:10,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304226308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:10,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:10,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:10,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206053554] [2022-01-18 07:37:10,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:10,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:10,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:10,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:10,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:10,761 INFO L87 Difference]: Start difference. First operand 3862 states and 13034 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:12,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:12,259 INFO L93 Difference]: Finished difference Result 6650 states and 22519 transitions. [2022-01-18 07:37:12,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 07:37:12,259 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:12,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:12,271 INFO L225 Difference]: With dead ends: 6650 [2022-01-18 07:37:12,271 INFO L226 Difference]: Without dead ends: 6590 [2022-01-18 07:37:12,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=266, Invalid=2596, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:37:12,272 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 429 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 2648 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 2696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:12,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2022 Invalid, 2696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2648 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:37:12,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2022-01-18 07:37:12,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 3860. [2022-01-18 07:37:12,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3860 states, 3859 states have (on average 3.3762632806426534) internal successors, (13029), 3859 states have internal predecessors, (13029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:12,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 13029 transitions. [2022-01-18 07:37:12,329 INFO L78 Accepts]: Start accepts. Automaton has 3860 states and 13029 transitions. Word has length 39 [2022-01-18 07:37:12,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:12,329 INFO L470 AbstractCegarLoop]: Abstraction has 3860 states and 13029 transitions. [2022-01-18 07:37:12,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:12,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states and 13029 transitions. [2022-01-18 07:37:12,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:12,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:12,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:12,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 07:37:12,334 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:12,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:12,334 INFO L85 PathProgramCache]: Analyzing trace with hash 196034458, now seen corresponding path program 39 times [2022-01-18 07:37:12,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:12,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132263478] [2022-01-18 07:37:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:12,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:12,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:12,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:12,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132263478] [2022-01-18 07:37:12,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132263478] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:12,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:12,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:12,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607819688] [2022-01-18 07:37:12,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:12,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:12,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:12,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:12,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:12,578 INFO L87 Difference]: Start difference. First operand 3860 states and 13029 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:13,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:13,851 INFO L93 Difference]: Finished difference Result 5722 states and 19443 transitions. [2022-01-18 07:37:13,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 07:37:13,851 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:13,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:13,862 INFO L225 Difference]: With dead ends: 5722 [2022-01-18 07:37:13,862 INFO L226 Difference]: Without dead ends: 5631 [2022-01-18 07:37:13,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 07:37:13,863 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 383 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:13,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 1732 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2332 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:13,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5631 states. [2022-01-18 07:37:13,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5631 to 3860. [2022-01-18 07:37:13,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3860 states, 3859 states have (on average 3.374708473697849) internal successors, (13023), 3859 states have internal predecessors, (13023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:13,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 13023 transitions. [2022-01-18 07:37:13,919 INFO L78 Accepts]: Start accepts. Automaton has 3860 states and 13023 transitions. Word has length 39 [2022-01-18 07:37:13,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:13,920 INFO L470 AbstractCegarLoop]: Abstraction has 3860 states and 13023 transitions. [2022-01-18 07:37:13,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:13,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states and 13023 transitions. [2022-01-18 07:37:13,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:13,925 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:13,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:13,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 07:37:13,925 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:13,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:13,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1306447748, now seen corresponding path program 40 times [2022-01-18 07:37:13,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:13,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733493514] [2022-01-18 07:37:13,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:13,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:14,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:14,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733493514] [2022-01-18 07:37:14,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733493514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:14,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:14,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:14,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707849376] [2022-01-18 07:37:14,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:14,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:14,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:14,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:14,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:14,132 INFO L87 Difference]: Start difference. First operand 3860 states and 13023 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:15,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:15,588 INFO L93 Difference]: Finished difference Result 6494 states and 22159 transitions. [2022-01-18 07:37:15,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:37:15,588 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:15,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:15,601 INFO L225 Difference]: With dead ends: 6494 [2022-01-18 07:37:15,602 INFO L226 Difference]: Without dead ends: 6378 [2022-01-18 07:37:15,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=245, Invalid=2407, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 07:37:15,602 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 384 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 2643 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:15,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 2083 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2643 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:15,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6378 states. [2022-01-18 07:37:15,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6378 to 3838. [2022-01-18 07:37:15,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3838 states, 3837 states have (on average 3.377638780297107) internal successors, (12960), 3837 states have internal predecessors, (12960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:15,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3838 states to 3838 states and 12960 transitions. [2022-01-18 07:37:15,666 INFO L78 Accepts]: Start accepts. Automaton has 3838 states and 12960 transitions. Word has length 39 [2022-01-18 07:37:15,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:15,666 INFO L470 AbstractCegarLoop]: Abstraction has 3838 states and 12960 transitions. [2022-01-18 07:37:15,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:15,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3838 states and 12960 transitions. [2022-01-18 07:37:15,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:15,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:15,672 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] [2022-01-18 07:37:15,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 07:37:15,672 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:15,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:15,672 INFO L85 PathProgramCache]: Analyzing trace with hash -569729732, now seen corresponding path program 41 times [2022-01-18 07:37:15,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:15,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170974345] [2022-01-18 07:37:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:15,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:15,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:15,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170974345] [2022-01-18 07:37:15,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170974345] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:15,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:15,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:15,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730748871] [2022-01-18 07:37:15,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:15,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:15,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:15,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:15,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:15,919 INFO L87 Difference]: Start difference. First operand 3838 states and 12960 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:19,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:19,029 INFO L93 Difference]: Finished difference Result 8378 states and 28437 transitions. [2022-01-18 07:37:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-01-18 07:37:19,029 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:19,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:19,045 INFO L225 Difference]: With dead ends: 8378 [2022-01-18 07:37:19,045 INFO L226 Difference]: Without dead ends: 8272 [2022-01-18 07:37:19,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2722 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=650, Invalid=7722, Unknown=0, NotChecked=0, Total=8372 [2022-01-18 07:37:19,046 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 602 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 4459 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 4561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 4459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:19,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [602 Valid, 3150 Invalid, 4561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 4459 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:37:19,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8272 states. [2022-01-18 07:37:19,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8272 to 3854. [2022-01-18 07:37:19,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.377108746431352) internal successors, (13012), 3853 states have internal predecessors, (13012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:19,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 13012 transitions. [2022-01-18 07:37:19,115 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 13012 transitions. Word has length 39 [2022-01-18 07:37:19,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:19,116 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 13012 transitions. [2022-01-18 07:37:19,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:19,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 13012 transitions. [2022-01-18 07:37:19,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:19,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:19,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:19,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 07:37:19,121 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:19,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:19,121 INFO L85 PathProgramCache]: Analyzing trace with hash -2064620632, now seen corresponding path program 42 times [2022-01-18 07:37:19,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:19,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176081772] [2022-01-18 07:37:19,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:19,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:19,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:19,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:19,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176081772] [2022-01-18 07:37:19,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176081772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:19,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:19,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:19,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23876187] [2022-01-18 07:37:19,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:19,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:19,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:19,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:19,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:19,348 INFO L87 Difference]: Start difference. First operand 3854 states and 13012 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:21,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:21,065 INFO L93 Difference]: Finished difference Result 6055 states and 20602 transitions. [2022-01-18 07:37:21,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 07:37:21,065 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:21,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:21,077 INFO L225 Difference]: With dead ends: 6055 [2022-01-18 07:37:21,077 INFO L226 Difference]: Without dead ends: 5991 [2022-01-18 07:37:21,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=334, Invalid=3448, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 07:37:21,077 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 452 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 2508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:21,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 1632 Invalid, 2508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:21,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2022-01-18 07:37:21,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 3850. [2022-01-18 07:37:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3849 states have (on average 3.3780202650038973) internal successors, (13002), 3849 states have internal predecessors, (13002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:21,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 13002 transitions. [2022-01-18 07:37:21,133 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 13002 transitions. Word has length 39 [2022-01-18 07:37:21,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:21,133 INFO L470 AbstractCegarLoop]: Abstraction has 3850 states and 13002 transitions. [2022-01-18 07:37:21,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:21,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 13002 transitions. [2022-01-18 07:37:21,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:21,138 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:21,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:21,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 07:37:21,138 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:21,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:21,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1146137062, now seen corresponding path program 43 times [2022-01-18 07:37:21,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:21,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385420867] [2022-01-18 07:37:21,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:21,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:21,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:21,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:21,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385420867] [2022-01-18 07:37:21,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385420867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:21,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:21,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:21,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440961114] [2022-01-18 07:37:21,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:21,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:21,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:21,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:21,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:21,354 INFO L87 Difference]: Start difference. First operand 3850 states and 13002 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:22,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:22,548 INFO L93 Difference]: Finished difference Result 5612 states and 19021 transitions. [2022-01-18 07:37:22,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 07:37:22,548 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:22,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:22,559 INFO L225 Difference]: With dead ends: 5612 [2022-01-18 07:37:22,559 INFO L226 Difference]: Without dead ends: 5569 [2022-01-18 07:37:22,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=204, Invalid=1958, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 07:37:22,560 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 367 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:22,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 1528 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2228 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:37:22,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5569 states. [2022-01-18 07:37:22,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5569 to 3872. [2022-01-18 07:37:22,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3872 states, 3871 states have (on average 3.375613536553862) internal successors, (13067), 3871 states have internal predecessors, (13067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:22,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3872 states to 3872 states and 13067 transitions. [2022-01-18 07:37:22,623 INFO L78 Accepts]: Start accepts. Automaton has 3872 states and 13067 transitions. Word has length 39 [2022-01-18 07:37:22,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:22,623 INFO L470 AbstractCegarLoop]: Abstraction has 3872 states and 13067 transitions. [2022-01-18 07:37:22,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:22,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3872 states and 13067 transitions. [2022-01-18 07:37:22,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:22,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:22,628 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] [2022-01-18 07:37:22,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 07:37:22,628 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:22,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:22,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1125988328, now seen corresponding path program 44 times [2022-01-18 07:37:22,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:22,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583578651] [2022-01-18 07:37:22,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:22,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:22,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:22,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:22,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583578651] [2022-01-18 07:37:22,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583578651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:22,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:22,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:22,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127104245] [2022-01-18 07:37:22,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:22,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:22,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:22,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:22,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:22,850 INFO L87 Difference]: Start difference. First operand 3872 states and 13067 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:24,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:24,128 INFO L93 Difference]: Finished difference Result 5591 states and 18991 transitions. [2022-01-18 07:37:24,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 07:37:24,128 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:24,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:24,139 INFO L225 Difference]: With dead ends: 5591 [2022-01-18 07:37:24,139 INFO L226 Difference]: Without dead ends: 5548 [2022-01-18 07:37:24,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=222, Invalid=2130, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 07:37:24,139 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 366 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 2314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:24,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 1578 Invalid, 2314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:37:24,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5548 states. [2022-01-18 07:37:24,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5548 to 3868. [2022-01-18 07:37:24,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 3.3765192655805536) internal successors, (13057), 3867 states have internal predecessors, (13057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:24,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 13057 transitions. [2022-01-18 07:37:24,207 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 13057 transitions. Word has length 39 [2022-01-18 07:37:24,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:24,207 INFO L470 AbstractCegarLoop]: Abstraction has 3868 states and 13057 transitions. [2022-01-18 07:37:24,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:24,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 13057 transitions. [2022-01-18 07:37:24,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:24,213 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:24,214 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] [2022-01-18 07:37:24,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 07:37:24,214 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:24,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:24,214 INFO L85 PathProgramCache]: Analyzing trace with hash 26515160, now seen corresponding path program 45 times [2022-01-18 07:37:24,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:24,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524577040] [2022-01-18 07:37:24,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:24,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:24,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:24,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:24,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524577040] [2022-01-18 07:37:24,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524577040] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:24,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:24,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:24,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508131641] [2022-01-18 07:37:24,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:24,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:24,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:24,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:24,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:24,445 INFO L87 Difference]: Start difference. First operand 3868 states and 13057 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:25,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:25,910 INFO L93 Difference]: Finished difference Result 6448 states and 21909 transitions. [2022-01-18 07:37:25,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 07:37:25,911 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:25,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:25,923 INFO L225 Difference]: With dead ends: 6448 [2022-01-18 07:37:25,923 INFO L226 Difference]: Without dead ends: 6388 [2022-01-18 07:37:25,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=2604, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:37:25,925 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 407 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 2537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:25,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1837 Invalid, 2537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:25,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6388 states. [2022-01-18 07:37:25,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6388 to 3866. [2022-01-18 07:37:25,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3866 states, 3865 states have (on average 3.376972833117723) internal successors, (13052), 3865 states have internal predecessors, (13052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:25,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3866 states to 3866 states and 13052 transitions. [2022-01-18 07:37:25,984 INFO L78 Accepts]: Start accepts. Automaton has 3866 states and 13052 transitions. Word has length 39 [2022-01-18 07:37:25,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:25,984 INFO L470 AbstractCegarLoop]: Abstraction has 3866 states and 13052 transitions. [2022-01-18 07:37:25,984 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) [2022-01-18 07:37:25,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3866 states and 13052 transitions. [2022-01-18 07:37:25,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:25,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:25,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:25,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 07:37:25,990 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:25,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:25,990 INFO L85 PathProgramCache]: Analyzing trace with hash -2053051382, now seen corresponding path program 46 times [2022-01-18 07:37:25,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:25,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839869415] [2022-01-18 07:37:25,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:25,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:26,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:26,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:26,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839869415] [2022-01-18 07:37:26,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839869415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:26,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:26,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 07:37:26,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139152387] [2022-01-18 07:37:26,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:26,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 07:37:26,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:26,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 07:37:26,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 07:37:26,229 INFO L87 Difference]: Start difference. First operand 3866 states and 13052 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) [2022-01-18 07:37:27,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:27,532 INFO L93 Difference]: Finished difference Result 6416 states and 21849 transitions. [2022-01-18 07:37:27,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 07:37:27,532 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 [2022-01-18 07:37:27,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:27,545 INFO L225 Difference]: With dead ends: 6416 [2022-01-18 07:37:27,545 INFO L226 Difference]: Without dead ends: 6340 [2022-01-18 07:37:27,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=2038, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 07:37:27,546 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 369 mSDsluCounter, 1775 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:27,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 1651 Invalid, 2315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:27,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2022-01-18 07:37:27,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 3874. [2022-01-18 07:37:27,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 3873 states have (on average 3.3741285824941905) internal successors, (13068), 3873 states have internal predecessors, (13068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:27,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 13068 transitions. [2022-01-18 07:37:27,606 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 13068 transitions. Word has length 39 [2022-01-18 07:37:27,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:27,606 INFO L470 AbstractCegarLoop]: Abstraction has 3874 states and 13068 transitions. [2022-01-18 07:37:27,606 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) [2022-01-18 07:37:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 13068 transitions. [2022-01-18 07:37:27,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:27,612 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:27,612 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] [2022-01-18 07:37:27,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 07:37:27,612 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:27,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:27,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1223862302, now seen corresponding path program 47 times [2022-01-18 07:37:27,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:27,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161332636] [2022-01-18 07:37:27,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:27,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:27,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:27,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:27,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161332636] [2022-01-18 07:37:27,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161332636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:27,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:27,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:27,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034183410] [2022-01-18 07:37:27,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:27,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:27,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:27,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:27,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:27,834 INFO L87 Difference]: Start difference. First operand 3874 states and 13068 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:29,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:29,238 INFO L93 Difference]: Finished difference Result 6398 states and 21795 transitions. [2022-01-18 07:37:29,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:37:29,238 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:29,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:29,270 INFO L225 Difference]: With dead ends: 6398 [2022-01-18 07:37:29,270 INFO L226 Difference]: Without dead ends: 6328 [2022-01-18 07:37:29,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=239, Invalid=2413, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 07:37:29,271 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 390 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:29,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1845 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:29,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6328 states. [2022-01-18 07:37:29,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6328 to 3862. [2022-01-18 07:37:29,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.3773633773633773) internal successors, (13040), 3861 states have internal predecessors, (13040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:29,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13040 transitions. [2022-01-18 07:37:29,325 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13040 transitions. Word has length 39 [2022-01-18 07:37:29,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:29,326 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13040 transitions. [2022-01-18 07:37:29,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:29,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13040 transitions. [2022-01-18 07:37:29,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:29,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:29,331 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] [2022-01-18 07:37:29,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 07:37:29,331 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:29,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:29,331 INFO L85 PathProgramCache]: Analyzing trace with hash 2070045982, now seen corresponding path program 48 times [2022-01-18 07:37:29,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:29,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737409546] [2022-01-18 07:37:29,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:29,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:29,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:29,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:29,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737409546] [2022-01-18 07:37:29,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737409546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:29,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:29,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:29,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214138495] [2022-01-18 07:37:29,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:29,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:29,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:29,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:29,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:29,533 INFO L87 Difference]: Start difference. First operand 3862 states and 13040 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:31,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:31,184 INFO L93 Difference]: Finished difference Result 6160 states and 21004 transitions. [2022-01-18 07:37:31,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 07:37:31,185 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 [2022-01-18 07:37:31,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:31,197 INFO L225 Difference]: With dead ends: 6160 [2022-01-18 07:37:31,197 INFO L226 Difference]: Without dead ends: 6117 [2022-01-18 07:37:31,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=344, Invalid=3438, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 07:37:31,198 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 453 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 2535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:31,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 1790 Invalid, 2535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:31,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6117 states. [2022-01-18 07:37:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6117 to 3876. [2022-01-18 07:37:31,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3876 states, 3875 states have (on average 3.375741935483871) internal successors, (13081), 3875 states have internal predecessors, (13081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:31,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3876 states to 3876 states and 13081 transitions. [2022-01-18 07:37:31,266 INFO L78 Accepts]: Start accepts. Automaton has 3876 states and 13081 transitions. Word has length 39 [2022-01-18 07:37:31,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:31,266 INFO L470 AbstractCegarLoop]: Abstraction has 3876 states and 13081 transitions. [2022-01-18 07:37:31,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:31,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3876 states and 13081 transitions. [2022-01-18 07:37:31,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:31,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:31,272 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] [2022-01-18 07:37:31,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 07:37:31,272 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:31,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:31,273 INFO L85 PathProgramCache]: Analyzing trace with hash 289447680, now seen corresponding path program 49 times [2022-01-18 07:37:31,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:31,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203005075] [2022-01-18 07:37:31,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:31,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:31,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:31,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:31,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203005075] [2022-01-18 07:37:31,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203005075] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:31,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:31,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:31,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247292557] [2022-01-18 07:37:31,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:31,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:31,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:31,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:31,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:31,480 INFO L87 Difference]: Start difference. First operand 3876 states and 13081 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:33,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:33,497 INFO L93 Difference]: Finished difference Result 7021 states and 23934 transitions. [2022-01-18 07:37:33,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 07:37:33,498 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 [2022-01-18 07:37:33,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:33,512 INFO L225 Difference]: With dead ends: 7021 [2022-01-18 07:37:33,513 INFO L226 Difference]: Without dead ends: 6969 [2022-01-18 07:37:33,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1275 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=386, Invalid=4170, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 07:37:33,514 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 498 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 2774 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 2853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:33,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 2125 Invalid, 2853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2774 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:37:33,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6969 states. [2022-01-18 07:37:33,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6969 to 3862. [2022-01-18 07:37:33,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.3773633773633773) internal successors, (13040), 3861 states have internal predecessors, (13040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:33,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13040 transitions. [2022-01-18 07:37:33,583 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13040 transitions. Word has length 39 [2022-01-18 07:37:33,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:33,583 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13040 transitions. [2022-01-18 07:37:33,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:33,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13040 transitions. [2022-01-18 07:37:33,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:33,589 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:33,589 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] [2022-01-18 07:37:33,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 07:37:33,589 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:33,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:33,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1306437744, now seen corresponding path program 50 times [2022-01-18 07:37:33,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:33,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184364285] [2022-01-18 07:37:33,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:33,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:33,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:33,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184364285] [2022-01-18 07:37:33,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184364285] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:33,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:33,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:33,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999354747] [2022-01-18 07:37:33,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:33,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:33,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:33,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:33,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:33,803 INFO L87 Difference]: Start difference. First operand 3862 states and 13040 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:34,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:34,974 INFO L93 Difference]: Finished difference Result 5717 states and 19331 transitions. [2022-01-18 07:37:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 07:37:34,974 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:34,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:34,985 INFO L225 Difference]: With dead ends: 5717 [2022-01-18 07:37:34,985 INFO L226 Difference]: Without dead ends: 5662 [2022-01-18 07:37:34,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=214, Invalid=1948, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 07:37:34,985 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 375 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 2180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:34,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1554 Invalid, 2180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2139 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:37:34,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5662 states. [2022-01-18 07:37:35,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5662 to 3870. [2022-01-18 07:37:35,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3870 states, 3869 states have (on average 3.3765830964073404) internal successors, (13064), 3869 states have internal predecessors, (13064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:35,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 13064 transitions. [2022-01-18 07:37:35,045 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 13064 transitions. Word has length 39 [2022-01-18 07:37:35,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:35,045 INFO L470 AbstractCegarLoop]: Abstraction has 3870 states and 13064 transitions. [2022-01-18 07:37:35,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:35,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 13064 transitions. [2022-01-18 07:37:35,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:35,051 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:35,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:35,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 07:37:35,051 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:35,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash -133785522, now seen corresponding path program 51 times [2022-01-18 07:37:35,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:35,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704835364] [2022-01-18 07:37:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:35,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:35,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:35,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704835364] [2022-01-18 07:37:35,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704835364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:35,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:35,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:35,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321106785] [2022-01-18 07:37:35,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:35,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:35,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:35,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:35,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:35,255 INFO L87 Difference]: Start difference. First operand 3870 states and 13064 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:36,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:36,754 INFO L93 Difference]: Finished difference Result 6578 states and 22265 transitions. [2022-01-18 07:37:36,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 07:37:36,755 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:36,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:36,771 INFO L225 Difference]: With dead ends: 6578 [2022-01-18 07:37:36,771 INFO L226 Difference]: Without dead ends: 6518 [2022-01-18 07:37:36,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=276, Invalid=2694, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 07:37:36,772 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 425 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:36,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 1903 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:36,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6518 states. [2022-01-18 07:37:36,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6518 to 3868. [2022-01-18 07:37:36,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 3.3770364623739333) internal successors, (13059), 3867 states have internal predecessors, (13059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:36,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 13059 transitions. [2022-01-18 07:37:36,847 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 13059 transitions. Word has length 39 [2022-01-18 07:37:36,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:36,847 INFO L470 AbstractCegarLoop]: Abstraction has 3868 states and 13059 transitions. [2022-01-18 07:37:36,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:36,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 13059 transitions. [2022-01-18 07:37:36,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:36,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:36,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:36,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 07:37:36,853 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:36,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:36,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2011189124, now seen corresponding path program 52 times [2022-01-18 07:37:36,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:36,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232028410] [2022-01-18 07:37:36,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:36,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:37,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:37,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232028410] [2022-01-18 07:37:37,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232028410] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:37,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:37,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:37,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455789421] [2022-01-18 07:37:37,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:37,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:37,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:37,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:37,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:37,078 INFO L87 Difference]: Start difference. First operand 3868 states and 13059 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:38,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:38,282 INFO L93 Difference]: Finished difference Result 5638 states and 19157 transitions. [2022-01-18 07:37:38,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 07:37:38,283 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:38,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:38,294 INFO L225 Difference]: With dead ends: 5638 [2022-01-18 07:37:38,294 INFO L226 Difference]: Without dead ends: 5547 [2022-01-18 07:37:38,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=193, Invalid=1787, Unknown=0, NotChecked=0, Total=1980 [2022-01-18 07:37:38,296 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 351 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:38,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1623 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:37:38,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2022-01-18 07:37:38,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 3868. [2022-01-18 07:37:38,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 3.3754848719937938) internal successors, (13053), 3867 states have internal predecessors, (13053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:38,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 13053 transitions. [2022-01-18 07:37:38,360 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 13053 transitions. Word has length 39 [2022-01-18 07:37:38,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:38,360 INFO L470 AbstractCegarLoop]: Abstraction has 3868 states and 13053 transitions. [2022-01-18 07:37:38,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:38,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 13053 transitions. [2022-01-18 07:37:38,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:38,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:38,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:38,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 07:37:38,368 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:38,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:38,368 INFO L85 PathProgramCache]: Analyzing trace with hash 781295966, now seen corresponding path program 53 times [2022-01-18 07:37:38,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:38,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867797906] [2022-01-18 07:37:38,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:38,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:38,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:38,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:38,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867797906] [2022-01-18 07:37:38,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867797906] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:38,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:38,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:38,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305304796] [2022-01-18 07:37:38,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:38,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:38,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:38,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:38,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:38,582 INFO L87 Difference]: Start difference. First operand 3868 states and 13053 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:39,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:39,949 INFO L93 Difference]: Finished difference Result 6470 states and 22033 transitions. [2022-01-18 07:37:39,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:37:39,949 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:39,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:39,962 INFO L225 Difference]: With dead ends: 6470 [2022-01-18 07:37:39,962 INFO L226 Difference]: Without dead ends: 6370 [2022-01-18 07:37:39,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=245, Invalid=2407, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 07:37:39,963 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 399 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 2488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:39,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1945 Invalid, 2488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:39,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6370 states. [2022-01-18 07:37:40,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6370 to 3862. [2022-01-18 07:37:40,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.375809375809376) internal successors, (13034), 3861 states have internal predecessors, (13034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:40,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13034 transitions. [2022-01-18 07:37:40,028 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13034 transitions. Word has length 39 [2022-01-18 07:37:40,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:40,028 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13034 transitions. [2022-01-18 07:37:40,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:40,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13034 transitions. [2022-01-18 07:37:40,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:40,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:40,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:40,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 07:37:40,034 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:40,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:40,034 INFO L85 PathProgramCache]: Analyzing trace with hash 544670970, now seen corresponding path program 54 times [2022-01-18 07:37:40,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:40,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542389155] [2022-01-18 07:37:40,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:40,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:40,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:40,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542389155] [2022-01-18 07:37:40,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542389155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:40,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:40,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 07:37:40,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533228306] [2022-01-18 07:37:40,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:40,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 07:37:40,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:40,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 07:37:40,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-01-18 07:37:40,279 INFO L87 Difference]: Start difference. First operand 3862 states and 13034 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) [2022-01-18 07:37:41,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:41,494 INFO L93 Difference]: Finished difference Result 6347 states and 21652 transitions. [2022-01-18 07:37:41,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 07:37:41,494 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 [2022-01-18 07:37:41,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:41,509 INFO L225 Difference]: With dead ends: 6347 [2022-01-18 07:37:41,509 INFO L226 Difference]: Without dead ends: 6271 [2022-01-18 07:37:41,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=205, Invalid=1865, Unknown=0, NotChecked=0, Total=2070 [2022-01-18 07:37:41,510 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 347 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:41,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1650 Invalid, 2274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2240 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:37:41,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6271 states. [2022-01-18 07:37:41,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6271 to 3894. [2022-01-18 07:37:41,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3894 states, 3893 states have (on average 3.37066529668636) internal successors, (13122), 3893 states have internal predecessors, (13122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:41,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 13122 transitions. [2022-01-18 07:37:41,578 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 13122 transitions. Word has length 39 [2022-01-18 07:37:41,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:41,578 INFO L470 AbstractCegarLoop]: Abstraction has 3894 states and 13122 transitions. [2022-01-18 07:37:41,578 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) [2022-01-18 07:37:41,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 13122 transitions. [2022-01-18 07:37:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:41,584 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:41,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:41,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 07:37:41,584 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:41,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:41,584 INFO L85 PathProgramCache]: Analyzing trace with hash -473382642, now seen corresponding path program 55 times [2022-01-18 07:37:41,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:41,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918870061] [2022-01-18 07:37:41,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:41,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:41,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:41,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:41,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918870061] [2022-01-18 07:37:41,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918870061] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:41,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:41,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:41,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790422642] [2022-01-18 07:37:41,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:41,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:41,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:41,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:41,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:41,813 INFO L87 Difference]: Start difference. First operand 3894 states and 13122 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:43,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:43,301 INFO L93 Difference]: Finished difference Result 6329 states and 21598 transitions. [2022-01-18 07:37:43,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 07:37:43,301 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:43,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:43,315 INFO L225 Difference]: With dead ends: 6329 [2022-01-18 07:37:43,315 INFO L226 Difference]: Without dead ends: 6263 [2022-01-18 07:37:43,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=226, Invalid=2224, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 07:37:43,316 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 376 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 2438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:43,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 1829 Invalid, 2438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:43,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6263 states. [2022-01-18 07:37:43,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6263 to 3886. [2022-01-18 07:37:43,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3886 states, 3885 states have (on average 3.3714285714285714) internal successors, (13098), 3885 states have internal predecessors, (13098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:43,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 13098 transitions. [2022-01-18 07:37:43,397 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 13098 transitions. Word has length 39 [2022-01-18 07:37:43,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:43,397 INFO L470 AbstractCegarLoop]: Abstraction has 3886 states and 13098 transitions. [2022-01-18 07:37:43,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:43,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 13098 transitions. [2022-01-18 07:37:43,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:43,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:43,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:43,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 07:37:43,404 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:43,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:43,404 INFO L85 PathProgramCache]: Analyzing trace with hash -755648296, now seen corresponding path program 56 times [2022-01-18 07:37:43,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:43,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852303003] [2022-01-18 07:37:43,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:43,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:43,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:43,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:43,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852303003] [2022-01-18 07:37:43,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852303003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:43,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:43,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:37:43,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631506593] [2022-01-18 07:37:43,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:43,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:37:43,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:43,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:37:43,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:37:43,631 INFO L87 Difference]: Start difference. First operand 3886 states and 13098 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:44,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:44,985 INFO L93 Difference]: Finished difference Result 6350 states and 21651 transitions. [2022-01-18 07:37:44,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 07:37:44,985 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:44,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:44,998 INFO L225 Difference]: With dead ends: 6350 [2022-01-18 07:37:44,998 INFO L226 Difference]: Without dead ends: 6188 [2022-01-18 07:37:44,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=2224, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 07:37:44,999 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 369 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:44,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 1900 Invalid, 2433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:45,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6188 states. [2022-01-18 07:37:45,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6188 to 3818. [2022-01-18 07:37:45,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3818 states, 3817 states have (on average 3.378045585538381) internal successors, (12894), 3817 states have internal predecessors, (12894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:45,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 12894 transitions. [2022-01-18 07:37:45,061 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 12894 transitions. Word has length 39 [2022-01-18 07:37:45,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:45,061 INFO L470 AbstractCegarLoop]: Abstraction has 3818 states and 12894 transitions. [2022-01-18 07:37:45,061 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) [2022-01-18 07:37:45,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 12894 transitions. [2022-01-18 07:37:45,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:45,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:45,066 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] [2022-01-18 07:37:45,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 07:37:45,066 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:45,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:45,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1202837964, now seen corresponding path program 57 times [2022-01-18 07:37:45,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:45,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695045880] [2022-01-18 07:37:45,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:45,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:45,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:45,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:45,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695045880] [2022-01-18 07:37:45,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695045880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:45,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:45,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:37:45,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555105842] [2022-01-18 07:37:45,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:45,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:37:45,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:45,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:37:45,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:37:45,308 INFO L87 Difference]: Start difference. First operand 3818 states and 12894 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:47,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:47,681 INFO L93 Difference]: Finished difference Result 6897 states and 23267 transitions. [2022-01-18 07:37:47,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-18 07:37:47,682 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:47,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:47,696 INFO L225 Difference]: With dead ends: 6897 [2022-01-18 07:37:47,696 INFO L226 Difference]: Without dead ends: 6830 [2022-01-18 07:37:47,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=399, Invalid=4571, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 07:37:47,697 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 520 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 3506 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:47,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 2870 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3506 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:37:47,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6830 states. [2022-01-18 07:37:47,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6830 to 3854. [2022-01-18 07:37:47,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.373994290163509) internal successors, (13000), 3853 states have internal predecessors, (13000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:47,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 13000 transitions. [2022-01-18 07:37:47,759 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 13000 transitions. Word has length 39 [2022-01-18 07:37:47,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:47,759 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 13000 transitions. [2022-01-18 07:37:47,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:47,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 13000 transitions. [2022-01-18 07:37:47,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:47,764 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:47,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:47,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 07:37:47,764 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:47,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:47,765 INFO L85 PathProgramCache]: Analyzing trace with hash -516778006, now seen corresponding path program 58 times [2022-01-18 07:37:47,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:47,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503132121] [2022-01-18 07:37:47,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:47,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:47,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:47,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:47,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503132121] [2022-01-18 07:37:47,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503132121] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:47,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:47,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:37:47,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695497407] [2022-01-18 07:37:47,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:47,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:37:47,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:47,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:37:47,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:37:47,979 INFO L87 Difference]: Start difference. First operand 3854 states and 13000 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:50,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:50,901 INFO L93 Difference]: Finished difference Result 8258 states and 27892 transitions. [2022-01-18 07:37:50,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-01-18 07:37:50,901 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:50,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:50,918 INFO L225 Difference]: With dead ends: 8258 [2022-01-18 07:37:50,918 INFO L226 Difference]: Without dead ends: 8215 [2022-01-18 07:37:50,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2597 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=621, Invalid=7569, Unknown=0, NotChecked=0, Total=8190 [2022-01-18 07:37:50,919 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 626 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 4331 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 3327 SdHoareTripleChecker+Invalid, 4434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 4331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:50,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 3327 Invalid, 4434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 4331 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:37:50,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8215 states. [2022-01-18 07:37:50,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8215 to 3896. [2022-01-18 07:37:50,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3895 states have (on average 3.371245186136072) internal successors, (13131), 3895 states have internal predecessors, (13131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 13131 transitions. [2022-01-18 07:37:50,994 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 13131 transitions. Word has length 39 [2022-01-18 07:37:50,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:50,994 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 13131 transitions. [2022-01-18 07:37:50,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 13131 transitions. [2022-01-18 07:37:50,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:50,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:51,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:51,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 07:37:51,000 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:51,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:51,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1997590988, now seen corresponding path program 59 times [2022-01-18 07:37:51,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:51,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559356580] [2022-01-18 07:37:51,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:51,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:51,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:51,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:51,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559356580] [2022-01-18 07:37:51,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559356580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:51,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:51,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:37:51,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304575980] [2022-01-18 07:37:51,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:51,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:37:51,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:51,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:37:51,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:37:51,226 INFO L87 Difference]: Start difference. First operand 3896 states and 13131 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:54,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:54,171 INFO L93 Difference]: Finished difference Result 8513 states and 28878 transitions. [2022-01-18 07:37:54,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 07:37:54,171 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:54,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:54,190 INFO L225 Difference]: With dead ends: 8513 [2022-01-18 07:37:54,190 INFO L226 Difference]: Without dead ends: 8449 [2022-01-18 07:37:54,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2591 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=620, Invalid=7570, Unknown=0, NotChecked=0, Total=8190 [2022-01-18 07:37:54,191 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 622 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 4400 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 4525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 4400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:54,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [622 Valid, 3274 Invalid, 4525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 4400 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:37:54,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8449 states. [2022-01-18 07:37:54,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8449 to 3826. [2022-01-18 07:37:54,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3826 states, 3825 states have (on average 3.3772549019607845) internal successors, (12918), 3825 states have internal predecessors, (12918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:54,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 12918 transitions. [2022-01-18 07:37:54,265 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 12918 transitions. Word has length 39 [2022-01-18 07:37:54,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:54,265 INFO L470 AbstractCegarLoop]: Abstraction has 3826 states and 12918 transitions. [2022-01-18 07:37:54,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:54,265 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 12918 transitions. [2022-01-18 07:37:54,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:54,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:54,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:54,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 07:37:54,270 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:54,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:54,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1676941908, now seen corresponding path program 60 times [2022-01-18 07:37:54,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:54,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786049736] [2022-01-18 07:37:54,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:54,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:54,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:54,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:54,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786049736] [2022-01-18 07:37:54,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786049736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:54,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:54,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:37:54,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739228793] [2022-01-18 07:37:54,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:54,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:37:54,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:54,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:37:54,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:37:54,492 INFO L87 Difference]: Start difference. First operand 3826 states and 12918 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:55,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:55,867 INFO L93 Difference]: Finished difference Result 5641 states and 19191 transitions. [2022-01-18 07:37:55,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:37:55,868 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:55,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:55,878 INFO L225 Difference]: With dead ends: 5641 [2022-01-18 07:37:55,878 INFO L226 Difference]: Without dead ends: 5574 [2022-01-18 07:37:55,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=256, Invalid=2500, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 07:37:55,879 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 413 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 2451 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:55,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1746 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2451 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:55,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2022-01-18 07:37:55,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 3854. [2022-01-18 07:37:55,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 3.3734752141188684) internal successors, (12998), 3853 states have internal predecessors, (12998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:55,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 12998 transitions. [2022-01-18 07:37:55,934 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 12998 transitions. Word has length 39 [2022-01-18 07:37:55,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:55,934 INFO L470 AbstractCegarLoop]: Abstraction has 3854 states and 12998 transitions. [2022-01-18 07:37:55,934 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) [2022-01-18 07:37:55,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 12998 transitions. [2022-01-18 07:37:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:55,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:55,940 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] [2022-01-18 07:37:55,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 07:37:55,940 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:55,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:55,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1807536756, now seen corresponding path program 61 times [2022-01-18 07:37:55,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:55,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434216070] [2022-01-18 07:37:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:55,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:56,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:56,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:56,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434216070] [2022-01-18 07:37:56,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434216070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:56,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:56,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:37:56,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511193423] [2022-01-18 07:37:56,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:56,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:37:56,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:56,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:37:56,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:37:56,174 INFO L87 Difference]: Start difference. First operand 3854 states and 12998 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:57,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:57,541 INFO L93 Difference]: Finished difference Result 5629 states and 19151 transitions. [2022-01-18 07:37:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 07:37:57,542 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:37:57,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:57,553 INFO L225 Difference]: With dead ends: 5629 [2022-01-18 07:37:57,553 INFO L226 Difference]: Without dead ends: 5566 [2022-01-18 07:37:57,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=263, Invalid=2599, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:37:57,554 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 411 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 2523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:57,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 1773 Invalid, 2523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:37:57,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5566 states. [2022-01-18 07:37:57,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5566 to 3846. [2022-01-18 07:37:57,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3846 states, 3845 states have (on average 3.375292587776333) internal successors, (12978), 3845 states have internal predecessors, (12978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:57,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3846 states to 3846 states and 12978 transitions. [2022-01-18 07:37:57,611 INFO L78 Accepts]: Start accepts. Automaton has 3846 states and 12978 transitions. Word has length 39 [2022-01-18 07:37:57,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:57,611 INFO L470 AbstractCegarLoop]: Abstraction has 3846 states and 12978 transitions. [2022-01-18 07:37:57,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:57,612 INFO L276 IsEmpty]: Start isEmpty. Operand 3846 states and 12978 transitions. [2022-01-18 07:37:57,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:57,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:57,617 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] [2022-01-18 07:37:57,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 07:37:57,617 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:57,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:57,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1943215348, now seen corresponding path program 62 times [2022-01-18 07:37:57,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:57,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446219867] [2022-01-18 07:37:57,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:57,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:37:57,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:37:57,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:37:57,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446219867] [2022-01-18 07:37:57,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446219867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:37:57,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:37:57,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:37:57,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990151724] [2022-01-18 07:37:57,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:37:57,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:37:57,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:37:57,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:37:57,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:37:57,848 INFO L87 Difference]: Start difference. First operand 3846 states and 12978 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:59,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:37:59,729 INFO L93 Difference]: Finished difference Result 6214 states and 21108 transitions. [2022-01-18 07:37:59,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-18 07:37:59,730 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 [2022-01-18 07:37:59,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:37:59,742 INFO L225 Difference]: With dead ends: 6214 [2022-01-18 07:37:59,742 INFO L226 Difference]: Without dead ends: 6171 [2022-01-18 07:37:59,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=402, Invalid=4428, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 07:37:59,743 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 524 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:37:59,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [524 Valid, 1990 Invalid, 2909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:37:59,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6171 states. [2022-01-18 07:37:59,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6171 to 3874. [2022-01-18 07:37:59,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3874 states, 3873 states have (on average 3.3736121869351923) internal successors, (13066), 3873 states have internal predecessors, (13066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:59,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3874 states to 3874 states and 13066 transitions. [2022-01-18 07:37:59,803 INFO L78 Accepts]: Start accepts. Automaton has 3874 states and 13066 transitions. Word has length 39 [2022-01-18 07:37:59,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:37:59,803 INFO L470 AbstractCegarLoop]: Abstraction has 3874 states and 13066 transitions. [2022-01-18 07:37:59,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:37:59,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3874 states and 13066 transitions. [2022-01-18 07:37:59,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:37:59,808 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:37:59,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:37:59,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 07:37:59,808 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:37:59,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:37:59,809 INFO L85 PathProgramCache]: Analyzing trace with hash 571153646, now seen corresponding path program 63 times [2022-01-18 07:37:59,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:37:59,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204347787] [2022-01-18 07:37:59,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:37:59,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:37:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:00,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:00,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:00,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204347787] [2022-01-18 07:38:00,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204347787] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:00,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:00,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:00,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146490397] [2022-01-18 07:38:00,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:00,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:00,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:00,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:00,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:00,022 INFO L87 Difference]: Start difference. First operand 3874 states and 13066 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:02,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:02,184 INFO L93 Difference]: Finished difference Result 7060 states and 23999 transitions. [2022-01-18 07:38:02,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-01-18 07:38:02,184 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 [2022-01-18 07:38:02,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:02,199 INFO L225 Difference]: With dead ends: 7060 [2022-01-18 07:38:02,199 INFO L226 Difference]: Without dead ends: 7008 [2022-01-18 07:38:02,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1596 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=437, Invalid=5113, Unknown=0, NotChecked=0, Total=5550 [2022-01-18 07:38:02,200 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 561 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 3119 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 2333 SdHoareTripleChecker+Invalid, 3221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 3119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:02,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 2333 Invalid, 3221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 3119 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:38:02,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7008 states. [2022-01-18 07:38:02,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7008 to 3862. [2022-01-18 07:38:02,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3862 states, 3861 states have (on average 3.375291375291375) internal successors, (13032), 3861 states have internal predecessors, (13032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:02,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3862 states to 3862 states and 13032 transitions. [2022-01-18 07:38:02,273 INFO L78 Accepts]: Start accepts. Automaton has 3862 states and 13032 transitions. Word has length 39 [2022-01-18 07:38:02,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:02,273 INFO L470 AbstractCegarLoop]: Abstraction has 3862 states and 13032 transitions. [2022-01-18 07:38:02,274 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) [2022-01-18 07:38:02,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3862 states and 13032 transitions. [2022-01-18 07:38:02,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:02,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:02,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:02,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 07:38:02,280 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:02,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:02,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1024731778, now seen corresponding path program 64 times [2022-01-18 07:38:02,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:02,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072695603] [2022-01-18 07:38:02,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:02,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:02,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:02,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072695603] [2022-01-18 07:38:02,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072695603] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:02,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:02,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:02,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052636357] [2022-01-18 07:38:02,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:02,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:02,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:02,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:02,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:02,500 INFO L87 Difference]: Start difference. First operand 3862 states and 13032 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:03,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:03,978 INFO L93 Difference]: Finished difference Result 5773 states and 19479 transitions. [2022-01-18 07:38:03,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 07:38:03,978 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:03,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:03,990 INFO L225 Difference]: With dead ends: 5773 [2022-01-18 07:38:03,990 INFO L226 Difference]: Without dead ends: 5718 [2022-01-18 07:38:03,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=280, Invalid=2800, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 07:38:03,993 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 439 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:03,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 1793 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:38:04,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5718 states. [2022-01-18 07:38:04,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 3864. [2022-01-18 07:38:04,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3864 states, 3863 states have (on average 3.3743204763137458) internal successors, (13035), 3863 states have internal predecessors, (13035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 13035 transitions. [2022-01-18 07:38:04,074 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 13035 transitions. Word has length 39 [2022-01-18 07:38:04,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:04,075 INFO L470 AbstractCegarLoop]: Abstraction has 3864 states and 13035 transitions. [2022-01-18 07:38:04,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:04,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 13035 transitions. [2022-01-18 07:38:04,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:04,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:04,080 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] [2022-01-18 07:38:04,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 07:38:04,081 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:04,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:04,081 INFO L85 PathProgramCache]: Analyzing trace with hash 147920444, now seen corresponding path program 65 times [2022-01-18 07:38:04,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:04,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045708859] [2022-01-18 07:38:04,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:04,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:04,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:04,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:04,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045708859] [2022-01-18 07:38:04,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045708859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:04,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:04,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:04,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784885615] [2022-01-18 07:38:04,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:04,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:04,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:04,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:04,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:04,317 INFO L87 Difference]: Start difference. First operand 3864 states and 13035 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:05,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:05,960 INFO L93 Difference]: Finished difference Result 6566 states and 22256 transitions. [2022-01-18 07:38:05,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 07:38:05,960 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:05,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:05,974 INFO L225 Difference]: With dead ends: 6566 [2022-01-18 07:38:05,974 INFO L226 Difference]: Without dead ends: 6520 [2022-01-18 07:38:05,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=3125, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 07:38:05,975 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 456 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 2819 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 2876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:05,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 2154 Invalid, 2876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2819 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:38:05,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6520 states. [2022-01-18 07:38:06,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6520 to 3868. [2022-01-18 07:38:06,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3867 states have (on average 3.3728988880268944) internal successors, (13043), 3867 states have internal predecessors, (13043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:06,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 13043 transitions. [2022-01-18 07:38:06,039 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 13043 transitions. Word has length 39 [2022-01-18 07:38:06,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:06,039 INFO L470 AbstractCegarLoop]: Abstraction has 3868 states and 13043 transitions. [2022-01-18 07:38:06,039 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) [2022-01-18 07:38:06,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 13043 transitions. [2022-01-18 07:38:06,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:06,045 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:06,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:06,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-18 07:38:06,045 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:06,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:06,045 INFO L85 PathProgramCache]: Analyzing trace with hash -99545718, now seen corresponding path program 66 times [2022-01-18 07:38:06,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:06,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299412804] [2022-01-18 07:38:06,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:06,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:06,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:06,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299412804] [2022-01-18 07:38:06,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299412804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:06,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:06,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:06,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940306030] [2022-01-18 07:38:06,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:06,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:06,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:06,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:06,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:06,267 INFO L87 Difference]: Start difference. First operand 3868 states and 13043 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:07,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:07,755 INFO L93 Difference]: Finished difference Result 5676 states and 19264 transitions. [2022-01-18 07:38:07,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 07:38:07,755 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 [2022-01-18 07:38:07,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:07,767 INFO L225 Difference]: With dead ends: 5676 [2022-01-18 07:38:07,767 INFO L226 Difference]: Without dead ends: 5627 [2022-01-18 07:38:07,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=282, Invalid=2798, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 07:38:07,768 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 426 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 2497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:07,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1784 Invalid, 2497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:38:07,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5627 states. [2022-01-18 07:38:07,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5627 to 3858. [2022-01-18 07:38:07,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3857 states have (on average 3.3761991184858697) internal successors, (13022), 3857 states have internal predecessors, (13022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:07,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 13022 transitions. [2022-01-18 07:38:07,837 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 13022 transitions. Word has length 39 [2022-01-18 07:38:07,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:07,837 INFO L470 AbstractCegarLoop]: Abstraction has 3858 states and 13022 transitions. [2022-01-18 07:38:07,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:07,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 13022 transitions. [2022-01-18 07:38:07,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:07,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:07,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:07,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-18 07:38:07,843 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:07,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:07,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1439329804, now seen corresponding path program 67 times [2022-01-18 07:38:07,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:07,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645535026] [2022-01-18 07:38:07,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:07,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:08,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:08,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:08,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645535026] [2022-01-18 07:38:08,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645535026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:08,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:08,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:08,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124062119] [2022-01-18 07:38:08,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:08,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:08,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:08,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:08,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:08,080 INFO L87 Difference]: Start difference. First operand 3858 states and 13022 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:09,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:09,404 INFO L93 Difference]: Finished difference Result 5685 states and 19349 transitions. [2022-01-18 07:38:09,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 07:38:09,404 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:09,416 INFO L225 Difference]: With dead ends: 5685 [2022-01-18 07:38:09,416 INFO L226 Difference]: Without dead ends: 5618 [2022-01-18 07:38:09,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=217, Invalid=2135, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 07:38:09,417 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 396 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:09,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 1784 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2531 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:38:09,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2022-01-18 07:38:09,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 3898. [2022-01-18 07:38:09,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3898 states, 3897 states have (on average 3.369258403900436) internal successors, (13130), 3897 states have internal predecessors, (13130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 13130 transitions. [2022-01-18 07:38:09,508 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 13130 transitions. Word has length 39 [2022-01-18 07:38:09,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:09,508 INFO L470 AbstractCegarLoop]: Abstraction has 3898 states and 13130 transitions. [2022-01-18 07:38:09,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:09,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 13130 transitions. [2022-01-18 07:38:09,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:09,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:09,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:09,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-18 07:38:09,515 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:09,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:09,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1308734956, now seen corresponding path program 68 times [2022-01-18 07:38:09,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:09,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728893919] [2022-01-18 07:38:09,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:09,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:09,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:09,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:09,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728893919] [2022-01-18 07:38:09,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728893919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:09,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:09,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:09,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052927162] [2022-01-18 07:38:09,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:09,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:09,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:09,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:09,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:09,761 INFO L87 Difference]: Start difference. First operand 3898 states and 13130 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:11,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:11,114 INFO L93 Difference]: Finished difference Result 5673 states and 19309 transitions. [2022-01-18 07:38:11,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 07:38:11,115 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:11,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:11,126 INFO L225 Difference]: With dead ends: 5673 [2022-01-18 07:38:11,126 INFO L226 Difference]: Without dead ends: 5610 [2022-01-18 07:38:11,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=2133, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 07:38:11,127 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 396 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:11,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 1800 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:38:11,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2022-01-18 07:38:11,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 3890. [2022-01-18 07:38:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 3889 states have (on average 3.370017999485729) internal successors, (13106), 3889 states have internal predecessors, (13106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:11,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 13106 transitions. [2022-01-18 07:38:11,187 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 13106 transitions. Word has length 39 [2022-01-18 07:38:11,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:11,187 INFO L470 AbstractCegarLoop]: Abstraction has 3890 states and 13106 transitions. [2022-01-18 07:38:11,187 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) [2022-01-18 07:38:11,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 13106 transitions. [2022-01-18 07:38:11,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:11,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:11,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:11,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-18 07:38:11,193 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:11,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:11,193 INFO L85 PathProgramCache]: Analyzing trace with hash 778834508, now seen corresponding path program 69 times [2022-01-18 07:38:11,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:11,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045200496] [2022-01-18 07:38:11,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:11,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:11,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:11,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:11,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045200496] [2022-01-18 07:38:11,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045200496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:11,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:11,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:11,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502654910] [2022-01-18 07:38:11,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:11,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:11,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:11,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:11,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:11,417 INFO L87 Difference]: Start difference. First operand 3890 states and 13106 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:12,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:12,760 INFO L93 Difference]: Finished difference Result 5697 states and 19369 transitions. [2022-01-18 07:38:12,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 07:38:12,760 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:12,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:12,771 INFO L225 Difference]: With dead ends: 5697 [2022-01-18 07:38:12,771 INFO L226 Difference]: Without dead ends: 5574 [2022-01-18 07:38:12,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=2137, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 07:38:12,772 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 394 mSDsluCounter, 2015 mSDsCounter, 0 mSdLazyCounter, 2545 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:12,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 1877 Invalid, 2588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2545 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:38:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2022-01-18 07:38:12,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 3858. [2022-01-18 07:38:12,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3858 states, 3857 states have (on average 3.3720508166969148) internal successors, (13006), 3857 states have internal predecessors, (13006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:12,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3858 states to 3858 states and 13006 transitions. [2022-01-18 07:38:12,831 INFO L78 Accepts]: Start accepts. Automaton has 3858 states and 13006 transitions. Word has length 39 [2022-01-18 07:38:12,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:12,832 INFO L470 AbstractCegarLoop]: Abstraction has 3858 states and 13006 transitions. [2022-01-18 07:38:12,832 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) [2022-01-18 07:38:12,832 INFO L276 IsEmpty]: Start isEmpty. Operand 3858 states and 13006 transitions. [2022-01-18 07:38:12,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:12,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:12,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:12,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-18 07:38:12,837 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:12,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:12,838 INFO L85 PathProgramCache]: Analyzing trace with hash 60423338, now seen corresponding path program 70 times [2022-01-18 07:38:12,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:12,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326761434] [2022-01-18 07:38:12,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:12,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:13,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:13,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:13,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326761434] [2022-01-18 07:38:13,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326761434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:13,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:13,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:13,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634570050] [2022-01-18 07:38:13,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:13,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:13,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:13,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:13,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:13,062 INFO L87 Difference]: Start difference. First operand 3858 states and 13006 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:14,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:14,979 INFO L93 Difference]: Finished difference Result 6282 states and 21379 transitions. [2022-01-18 07:38:14,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 07:38:14,979 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:14,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:14,992 INFO L225 Difference]: With dead ends: 6282 [2022-01-18 07:38:14,993 INFO L226 Difference]: Without dead ends: 6239 [2022-01-18 07:38:14,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=370, Invalid=3920, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 07:38:14,994 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 501 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 2905 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 2172 SdHoareTripleChecker+Invalid, 2987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:14,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 2172 Invalid, 2987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2905 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:38:15,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6239 states. [2022-01-18 07:38:15,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6239 to 3872. [2022-01-18 07:38:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3872 states, 3871 states have (on average 3.370446912942392) internal successors, (13047), 3871 states have internal predecessors, (13047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:15,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3872 states to 3872 states and 13047 transitions. [2022-01-18 07:38:15,097 INFO L78 Accepts]: Start accepts. Automaton has 3872 states and 13047 transitions. Word has length 39 [2022-01-18 07:38:15,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:15,098 INFO L470 AbstractCegarLoop]: Abstraction has 3872 states and 13047 transitions. [2022-01-18 07:38:15,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:15,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3872 states and 13047 transitions. [2022-01-18 07:38:15,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:15,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:15,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:15,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-18 07:38:15,104 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:15,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:15,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1720174964, now seen corresponding path program 71 times [2022-01-18 07:38:15,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:15,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712571361] [2022-01-18 07:38:15,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:15,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:15,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:15,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:15,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712571361] [2022-01-18 07:38:15,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712571361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:15,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:15,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:15,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526110107] [2022-01-18 07:38:15,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:15,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:15,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:15,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:15,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:15,347 INFO L87 Difference]: Start difference. First operand 3872 states and 13047 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:17,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:17,532 INFO L93 Difference]: Finished difference Result 7143 states and 24309 transitions. [2022-01-18 07:38:17,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-18 07:38:17,533 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:17,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:17,547 INFO L225 Difference]: With dead ends: 7143 [2022-01-18 07:38:17,547 INFO L226 Difference]: Without dead ends: 7091 [2022-01-18 07:38:17,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=412, Invalid=4700, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 07:38:17,548 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 546 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 3234 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 3323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 3234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:17,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 2539 Invalid, 3323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 3234 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:38:17,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2022-01-18 07:38:17,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 3842. [2022-01-18 07:38:17,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3842 states, 3841 states have (on average 3.3720385316323873) internal successors, (12952), 3841 states have internal predecessors, (12952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:17,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3842 states to 3842 states and 12952 transitions. [2022-01-18 07:38:17,616 INFO L78 Accepts]: Start accepts. Automaton has 3842 states and 12952 transitions. Word has length 39 [2022-01-18 07:38:17,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:17,619 INFO L470 AbstractCegarLoop]: Abstraction has 3842 states and 12952 transitions. [2022-01-18 07:38:17,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:17,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3842 states and 12952 transitions. [2022-01-18 07:38:17,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:17,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:17,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:17,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-18 07:38:17,627 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:17,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:17,627 INFO L85 PathProgramCache]: Analyzing trace with hash 978906908, now seen corresponding path program 72 times [2022-01-18 07:38:17,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:17,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792342590] [2022-01-18 07:38:17,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:17,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:17,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:17,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792342590] [2022-01-18 07:38:17,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792342590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:17,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:17,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:17,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459057263] [2022-01-18 07:38:17,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:17,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:17,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:17,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:17,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:17,889 INFO L87 Difference]: Start difference. First operand 3842 states and 12952 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:19,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:19,298 INFO L93 Difference]: Finished difference Result 5803 states and 19576 transitions. [2022-01-18 07:38:19,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:38:19,299 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:19,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:19,310 INFO L225 Difference]: With dead ends: 5803 [2022-01-18 07:38:19,310 INFO L226 Difference]: Without dead ends: 5748 [2022-01-18 07:38:19,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=250, Invalid=2402, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 07:38:19,311 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 432 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:19,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 1821 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:38:19,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5748 states. [2022-01-18 07:38:19,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5748 to 3850. [2022-01-18 07:38:19,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3849 states have (on average 3.3712652637048586) internal successors, (12976), 3849 states have internal predecessors, (12976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:19,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 12976 transitions. [2022-01-18 07:38:19,376 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 12976 transitions. Word has length 39 [2022-01-18 07:38:19,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:19,376 INFO L470 AbstractCegarLoop]: Abstraction has 3850 states and 12976 transitions. [2022-01-18 07:38:19,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:19,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 12976 transitions. [2022-01-18 07:38:19,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:19,382 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:19,382 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] [2022-01-18 07:38:19,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-18 07:38:19,382 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:19,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:19,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2143408166, now seen corresponding path program 73 times [2022-01-18 07:38:19,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:19,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404139368] [2022-01-18 07:38:19,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:19,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:19,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:19,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:19,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404139368] [2022-01-18 07:38:19,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404139368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:19,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:19,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:19,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329094443] [2022-01-18 07:38:19,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:19,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:19,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:19,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:19,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:19,596 INFO L87 Difference]: Start difference. First operand 3850 states and 12976 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:21,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:21,265 INFO L93 Difference]: Finished difference Result 6664 states and 22510 transitions. [2022-01-18 07:38:21,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 07:38:21,265 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:21,298 INFO L225 Difference]: With dead ends: 6664 [2022-01-18 07:38:21,298 INFO L226 Difference]: Without dead ends: 6604 [2022-01-18 07:38:21,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=281, Invalid=2911, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 07:38:21,299 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 462 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:21,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 2208 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:38:21,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6604 states. [2022-01-18 07:38:21,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6604 to 3848. [2022-01-18 07:38:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.371718221991162) internal successors, (12971), 3847 states have internal predecessors, (12971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:21,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 12971 transitions. [2022-01-18 07:38:21,366 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 12971 transitions. Word has length 39 [2022-01-18 07:38:21,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:21,366 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 12971 transitions. [2022-01-18 07:38:21,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:21,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 12971 transitions. [2022-01-18 07:38:21,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:21,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:21,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:21,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-18 07:38:21,371 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:21,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:21,372 INFO L85 PathProgramCache]: Analyzing trace with hash 274155528, now seen corresponding path program 74 times [2022-01-18 07:38:21,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:21,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358732077] [2022-01-18 07:38:21,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:21,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:21,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:21,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:21,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358732077] [2022-01-18 07:38:21,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358732077] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:21,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:21,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:21,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145554195] [2022-01-18 07:38:21,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:21,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:21,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:21,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:21,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:21,610 INFO L87 Difference]: Start difference. First operand 3848 states and 12971 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:22,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:22,966 INFO L93 Difference]: Finished difference Result 5772 states and 19530 transitions. [2022-01-18 07:38:22,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 07:38:22,966 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:22,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:22,977 INFO L225 Difference]: With dead ends: 5772 [2022-01-18 07:38:22,978 INFO L226 Difference]: Without dead ends: 5681 [2022-01-18 07:38:22,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=235, Invalid=2315, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 07:38:22,978 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 417 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:22,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 1894 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:38:22,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5681 states. [2022-01-18 07:38:23,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5681 to 3848. [2022-01-18 07:38:23,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3848 states, 3847 states have (on average 3.3701585651156747) internal successors, (12965), 3847 states have internal predecessors, (12965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:23,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3848 states to 3848 states and 12965 transitions. [2022-01-18 07:38:23,041 INFO L78 Accepts]: Start accepts. Automaton has 3848 states and 12965 transitions. Word has length 39 [2022-01-18 07:38:23,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:23,041 INFO L470 AbstractCegarLoop]: Abstraction has 3848 states and 12965 transitions. [2022-01-18 07:38:23,041 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) [2022-01-18 07:38:23,041 INFO L276 IsEmpty]: Start isEmpty. Operand 3848 states and 12965 transitions. [2022-01-18 07:38:23,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:23,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:23,046 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] [2022-01-18 07:38:23,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-18 07:38:23,047 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:23,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:23,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1228326678, now seen corresponding path program 75 times [2022-01-18 07:38:23,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:23,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438488592] [2022-01-18 07:38:23,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:23,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:23,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:23,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:23,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438488592] [2022-01-18 07:38:23,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438488592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:23,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:23,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:23,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205561122] [2022-01-18 07:38:23,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:23,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:23,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:23,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:23,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:23,275 INFO L87 Difference]: Start difference. First operand 3848 states and 12965 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:24,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:24,839 INFO L93 Difference]: Finished difference Result 6585 states and 22332 transitions. [2022-01-18 07:38:24,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 07:38:24,839 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:24,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:24,852 INFO L225 Difference]: With dead ends: 6585 [2022-01-18 07:38:24,852 INFO L226 Difference]: Without dead ends: 6469 [2022-01-18 07:38:24,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=260, Invalid=2710, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 07:38:24,852 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 429 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 2891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:24,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2290 Invalid, 2891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2842 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:38:24,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6469 states. [2022-01-18 07:38:24,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6469 to 3826. [2022-01-18 07:38:24,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3826 states, 3825 states have (on average 3.3762091503267975) internal successors, (12914), 3825 states have internal predecessors, (12914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 12914 transitions. [2022-01-18 07:38:24,911 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 12914 transitions. Word has length 39 [2022-01-18 07:38:24,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:24,911 INFO L470 AbstractCegarLoop]: Abstraction has 3826 states and 12914 transitions. [2022-01-18 07:38:24,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:24,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 12914 transitions. [2022-01-18 07:38:24,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:24,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:24,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:24,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-18 07:38:24,916 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:24,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash -599093414, now seen corresponding path program 76 times [2022-01-18 07:38:24,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:24,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979953267] [2022-01-18 07:38:24,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:24,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:25,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:25,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:25,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979953267] [2022-01-18 07:38:25,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979953267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:25,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:25,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:25,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851498858] [2022-01-18 07:38:25,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:25,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:25,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:25,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:25,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:25,141 INFO L87 Difference]: Start difference. First operand 3826 states and 12914 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:26,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:26,317 INFO L93 Difference]: Finished difference Result 5481 states and 18673 transitions. [2022-01-18 07:38:26,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 07:38:26,317 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:26,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:26,328 INFO L225 Difference]: With dead ends: 5481 [2022-01-18 07:38:26,328 INFO L226 Difference]: Without dead ends: 5414 [2022-01-18 07:38:26,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=1959, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 07:38:26,329 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 347 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 2207 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:26,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1661 Invalid, 2243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2207 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:38:26,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5414 states. [2022-01-18 07:38:26,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5414 to 3878. [2022-01-18 07:38:26,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3878 states, 3877 states have (on average 3.3660046427650245) internal successors, (13050), 3877 states have internal predecessors, (13050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:26,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 13050 transitions. [2022-01-18 07:38:26,422 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 13050 transitions. Word has length 39 [2022-01-18 07:38:26,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:26,422 INFO L470 AbstractCegarLoop]: Abstraction has 3878 states and 13050 transitions. [2022-01-18 07:38:26,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:26,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 13050 transitions. [2022-01-18 07:38:26,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:26,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:26,428 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] [2022-01-18 07:38:26,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-18 07:38:26,428 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:26,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:26,429 INFO L85 PathProgramCache]: Analyzing trace with hash -771236632, now seen corresponding path program 77 times [2022-01-18 07:38:26,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:26,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522730326] [2022-01-18 07:38:26,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:26,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:26,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:26,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522730326] [2022-01-18 07:38:26,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522730326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:26,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:26,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:26,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760312884] [2022-01-18 07:38:26,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:26,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:26,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:26,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:26,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:26,656 INFO L87 Difference]: Start difference. First operand 3878 states and 13050 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:27,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:27,827 INFO L93 Difference]: Finished difference Result 5469 states and 18633 transitions. [2022-01-18 07:38:27,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 07:38:27,827 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:27,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:27,838 INFO L225 Difference]: With dead ends: 5469 [2022-01-18 07:38:27,838 INFO L226 Difference]: Without dead ends: 5406 [2022-01-18 07:38:27,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=201, Invalid=1961, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 07:38:27,838 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 344 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:27,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 1690 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:38:27,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5406 states. [2022-01-18 07:38:27,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5406 to 3870. [2022-01-18 07:38:27,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3870 states, 3869 states have (on average 3.3667614370638406) internal successors, (13026), 3869 states have internal predecessors, (13026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:27,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 13026 transitions. [2022-01-18 07:38:27,894 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 13026 transitions. Word has length 39 [2022-01-18 07:38:27,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:27,894 INFO L470 AbstractCegarLoop]: Abstraction has 3870 states and 13026 transitions. [2022-01-18 07:38:27,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:27,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 13026 transitions. [2022-01-18 07:38:27,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:27,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:27,900 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] [2022-01-18 07:38:27,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-18 07:38:27,900 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:27,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:27,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1720896508, now seen corresponding path program 78 times [2022-01-18 07:38:27,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:27,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169408545] [2022-01-18 07:38:27,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:27,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:28,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:28,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:28,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169408545] [2022-01-18 07:38:28,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169408545] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:28,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:28,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:28,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236700685] [2022-01-18 07:38:28,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:28,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:28,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:28,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:28,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:28,118 INFO L87 Difference]: Start difference. First operand 3870 states and 13026 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:29,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:29,319 INFO L93 Difference]: Finished difference Result 5477 states and 18645 transitions. [2022-01-18 07:38:29,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-18 07:38:29,319 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:29,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:29,329 INFO L225 Difference]: With dead ends: 5477 [2022-01-18 07:38:29,329 INFO L226 Difference]: Without dead ends: 5334 [2022-01-18 07:38:29,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=198, Invalid=1964, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 07:38:29,329 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 336 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:29,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1763 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:38:29,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2022-01-18 07:38:29,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 3818. [2022-01-18 07:38:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3818 states, 3817 states have (on average 3.378045585538381) internal successors, (12894), 3817 states have internal predecessors, (12894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 12894 transitions. [2022-01-18 07:38:29,379 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 12894 transitions. Word has length 39 [2022-01-18 07:38:29,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:29,379 INFO L470 AbstractCegarLoop]: Abstraction has 3818 states and 12894 transitions. [2022-01-18 07:38:29,379 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) [2022-01-18 07:38:29,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 12894 transitions. [2022-01-18 07:38:29,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:29,384 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:29,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:29,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-18 07:38:29,384 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:29,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:29,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1555263514, now seen corresponding path program 79 times [2022-01-18 07:38:29,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:29,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601657013] [2022-01-18 07:38:29,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:29,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:29,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:29,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:29,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601657013] [2022-01-18 07:38:29,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601657013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:29,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:29,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:38:29,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519678542] [2022-01-18 07:38:29,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:29,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:38:29,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:29,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:38:29,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:38:29,619 INFO L87 Difference]: Start difference. First operand 3818 states and 12894 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:32,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:32,960 INFO L93 Difference]: Finished difference Result 9174 states and 31032 transitions. [2022-01-18 07:38:32,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-01-18 07:38:32,960 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:32,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:32,978 INFO L225 Difference]: With dead ends: 9174 [2022-01-18 07:38:32,979 INFO L226 Difference]: Without dead ends: 9044 [2022-01-18 07:38:32,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3103 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=708, Invalid=8604, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 07:38:32,979 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 598 mSDsluCounter, 3584 mSDsCounter, 0 mSdLazyCounter, 4762 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 3510 SdHoareTripleChecker+Invalid, 4851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 4762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:32,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [598 Valid, 3510 Invalid, 4851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 4762 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 07:38:32,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2022-01-18 07:38:33,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 4543. [2022-01-18 07:38:33,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4543 states, 4542 states have (on average 3.403566710700132) internal successors, (15459), 4542 states have internal predecessors, (15459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:33,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4543 states to 4543 states and 15459 transitions. [2022-01-18 07:38:33,064 INFO L78 Accepts]: Start accepts. Automaton has 4543 states and 15459 transitions. Word has length 39 [2022-01-18 07:38:33,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:33,064 INFO L470 AbstractCegarLoop]: Abstraction has 4543 states and 15459 transitions. [2022-01-18 07:38:33,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 4543 states and 15459 transitions. [2022-01-18 07:38:33,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:33,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:33,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:33,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-18 07:38:33,071 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:33,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:33,071 INFO L85 PathProgramCache]: Analyzing trace with hash -164352456, now seen corresponding path program 80 times [2022-01-18 07:38:33,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:33,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382036011] [2022-01-18 07:38:33,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:33,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:33,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:33,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382036011] [2022-01-18 07:38:33,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382036011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:33,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:33,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:38:33,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130197143] [2022-01-18 07:38:33,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:33,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:38:33,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:33,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:38:33,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:38:33,277 INFO L87 Difference]: Start difference. First operand 4543 states and 15459 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:37,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:37,569 INFO L93 Difference]: Finished difference Result 11582 states and 39219 transitions. [2022-01-18 07:38:37,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-01-18 07:38:37,569 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:37,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:37,593 INFO L225 Difference]: With dead ends: 11582 [2022-01-18 07:38:37,593 INFO L226 Difference]: Without dead ends: 11476 [2022-01-18 07:38:37,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6011 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1123, Invalid=15133, Unknown=0, NotChecked=0, Total=16256 [2022-01-18 07:38:37,595 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 725 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 5307 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 3640 SdHoareTripleChecker+Invalid, 5451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 5307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:37,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 3640 Invalid, 5451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 5307 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 07:38:37,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11476 states. [2022-01-18 07:38:37,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11476 to 5005. [2022-01-18 07:38:37,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5005 states, 5004 states have (on average 3.4332533972821744) internal successors, (17180), 5004 states have internal predecessors, (17180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:37,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5005 states to 5005 states and 17180 transitions. [2022-01-18 07:38:37,701 INFO L78 Accepts]: Start accepts. Automaton has 5005 states and 17180 transitions. Word has length 39 [2022-01-18 07:38:37,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:37,701 INFO L470 AbstractCegarLoop]: Abstraction has 5005 states and 17180 transitions. [2022-01-18 07:38:37,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:37,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5005 states and 17180 transitions. [2022-01-18 07:38:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:37,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:37,708 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] [2022-01-18 07:38:37,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-18 07:38:37,708 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:37,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:37,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1944950758, now seen corresponding path program 81 times [2022-01-18 07:38:37,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:37,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789048419] [2022-01-18 07:38:37,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:37,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:37,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:37,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:37,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789048419] [2022-01-18 07:38:37,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789048419] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:37,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:37,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:38:37,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469992705] [2022-01-18 07:38:37,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:37,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:38:37,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:37,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:38:37,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:38:37,909 INFO L87 Difference]: Start difference. First operand 5005 states and 17180 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:42,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:42,428 INFO L93 Difference]: Finished difference Result 12191 states and 41382 transitions. [2022-01-18 07:38:42,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-01-18 07:38:42,428 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:42,453 INFO L225 Difference]: With dead ends: 12191 [2022-01-18 07:38:42,453 INFO L226 Difference]: Without dead ends: 12052 [2022-01-18 07:38:42,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6441 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1171, Invalid=16121, Unknown=0, NotChecked=0, Total=17292 [2022-01-18 07:38:42,454 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 731 mSDsluCounter, 3762 mSDsCounter, 0 mSdLazyCounter, 5463 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 3700 SdHoareTripleChecker+Invalid, 5629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 5463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:42,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 3700 Invalid, 5629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 5463 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 07:38:42,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12052 states. [2022-01-18 07:38:42,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12052 to 5161. [2022-01-18 07:38:42,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 3.442829457364341) internal successors, (17765), 5160 states have internal predecessors, (17765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:42,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 17765 transitions. [2022-01-18 07:38:42,565 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 17765 transitions. Word has length 39 [2022-01-18 07:38:42,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:42,566 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 17765 transitions. [2022-01-18 07:38:42,566 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) [2022-01-18 07:38:42,566 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 17765 transitions. [2022-01-18 07:38:42,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:42,573 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:42,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:42,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-18 07:38:42,573 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:42,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:42,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1941200922, now seen corresponding path program 82 times [2022-01-18 07:38:42,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:42,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247856056] [2022-01-18 07:38:42,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:42,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:42,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:42,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:42,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247856056] [2022-01-18 07:38:42,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247856056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:42,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:42,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:38:42,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14581773] [2022-01-18 07:38:42,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:42,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:38:42,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:42,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:38:42,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:38:42,777 INFO L87 Difference]: Start difference. First operand 5161 states and 17765 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:47,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:47,689 INFO L93 Difference]: Finished difference Result 12631 states and 43057 transitions. [2022-01-18 07:38:47,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-01-18 07:38:47,689 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:47,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:47,718 INFO L225 Difference]: With dead ends: 12631 [2022-01-18 07:38:47,718 INFO L226 Difference]: Without dead ends: 12414 [2022-01-18 07:38:47,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6976 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1168, Invalid=17464, Unknown=0, NotChecked=0, Total=18632 [2022-01-18 07:38:47,721 INFO L933 BasicCegarLoop]: 459 mSDtfsCounter, 720 mSDsluCounter, 4236 mSDsCounter, 0 mSdLazyCounter, 6316 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 4247 SdHoareTripleChecker+Invalid, 6482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 6316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:47,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 4247 Invalid, 6482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 6316 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-01-18 07:38:47,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12414 states. [2022-01-18 07:38:47,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12414 to 5293. [2022-01-18 07:38:47,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 3.4569160997732427) internal successors, (18294), 5292 states have internal predecessors, (18294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:47,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 18294 transitions. [2022-01-18 07:38:47,877 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 18294 transitions. Word has length 39 [2022-01-18 07:38:47,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:47,877 INFO L470 AbstractCegarLoop]: Abstraction has 5293 states and 18294 transitions. [2022-01-18 07:38:47,877 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) [2022-01-18 07:38:47,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 18294 transitions. [2022-01-18 07:38:47,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:47,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:47,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:47,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-18 07:38:47,889 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:47,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:47,890 INFO L85 PathProgramCache]: Analyzing trace with hash -515814522, now seen corresponding path program 83 times [2022-01-18 07:38:47,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:47,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173791707] [2022-01-18 07:38:47,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:47,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:48,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:48,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:48,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173791707] [2022-01-18 07:38:48,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173791707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:48,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:48,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:48,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7745734] [2022-01-18 07:38:48,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:48,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:48,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:48,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:48,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:48,119 INFO L87 Difference]: Start difference. First operand 5293 states and 18294 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:51,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:51,824 INFO L93 Difference]: Finished difference Result 10886 states and 37113 transitions. [2022-01-18 07:38:51,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-01-18 07:38:51,824 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 [2022-01-18 07:38:51,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:51,847 INFO L225 Difference]: With dead ends: 10886 [2022-01-18 07:38:51,848 INFO L226 Difference]: Without dead ends: 10819 [2022-01-18 07:38:51,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3761 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=796, Invalid=10334, Unknown=0, NotChecked=0, Total=11130 [2022-01-18 07:38:51,848 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 643 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 5173 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 5277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 5173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:51,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 3911 Invalid, 5277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 5173 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 07:38:51,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10819 states. [2022-01-18 07:38:51,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10819 to 5327. [2022-01-18 07:38:51,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 3.4555013143071722) internal successors, (18404), 5326 states have internal predecessors, (18404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:51,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 18404 transitions. [2022-01-18 07:38:51,965 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 18404 transitions. Word has length 39 [2022-01-18 07:38:51,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:51,965 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 18404 transitions. [2022-01-18 07:38:51,965 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) [2022-01-18 07:38:51,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 18404 transitions. [2022-01-18 07:38:51,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:51,973 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:51,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:51,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-18 07:38:51,974 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:51,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:51,974 INFO L85 PathProgramCache]: Analyzing trace with hash 2059536804, now seen corresponding path program 84 times [2022-01-18 07:38:51,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:51,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342248960] [2022-01-18 07:38:51,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:51,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:52,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:52,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:52,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342248960] [2022-01-18 07:38:52,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342248960] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:52,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:52,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:52,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482084951] [2022-01-18 07:38:52,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:52,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:52,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:52,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:52,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:52,197 INFO L87 Difference]: Start difference. First operand 5327 states and 18404 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:57,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:38:57,022 INFO L93 Difference]: Finished difference Result 12407 states and 42028 transitions. [2022-01-18 07:38:57,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-01-18 07:38:57,022 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:38:57,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:38:57,052 INFO L225 Difference]: With dead ends: 12407 [2022-01-18 07:38:57,052 INFO L226 Difference]: Without dead ends: 12364 [2022-01-18 07:38:57,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6917 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1217, Invalid=17415, Unknown=0, NotChecked=0, Total=18632 [2022-01-18 07:38:57,055 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 756 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 5769 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 4059 SdHoareTripleChecker+Invalid, 5926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 5769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:38:57,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 4059 Invalid, 5926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 5769 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-18 07:38:57,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12364 states. [2022-01-18 07:38:57,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12364 to 5367. [2022-01-18 07:38:57,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5367 states, 5366 states have (on average 3.4549012299664557) internal successors, (18539), 5366 states have internal predecessors, (18539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:57,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5367 states to 5367 states and 18539 transitions. [2022-01-18 07:38:57,224 INFO L78 Accepts]: Start accepts. Automaton has 5367 states and 18539 transitions. Word has length 39 [2022-01-18 07:38:57,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:38:57,224 INFO L470 AbstractCegarLoop]: Abstraction has 5367 states and 18539 transitions. [2022-01-18 07:38:57,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:38:57,224 INFO L276 IsEmpty]: Start isEmpty. Operand 5367 states and 18539 transitions. [2022-01-18 07:38:57,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:38:57,233 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:38:57,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:38:57,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-18 07:38:57,234 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:38:57,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:38:57,234 INFO L85 PathProgramCache]: Analyzing trace with hash 278938502, now seen corresponding path program 85 times [2022-01-18 07:38:57,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:38:57,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431500818] [2022-01-18 07:38:57,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:38:57,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:38:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:38:57,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:38:57,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:38:57,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431500818] [2022-01-18 07:38:57,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431500818] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:38:57,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:38:57,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:38:57,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130016908] [2022-01-18 07:38:57,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:38:57,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:38:57,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:38:57,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:38:57,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:38:57,448 INFO L87 Difference]: Start difference. First operand 5367 states and 18539 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:02,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:02,488 INFO L93 Difference]: Finished difference Result 12963 states and 44015 transitions. [2022-01-18 07:39:02,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-01-18 07:39:02,488 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 [2022-01-18 07:39:02,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:02,518 INFO L225 Difference]: With dead ends: 12963 [2022-01-18 07:39:02,518 INFO L226 Difference]: Without dead ends: 12887 [2022-01-18 07:39:02,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7138 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1246, Invalid=17936, Unknown=0, NotChecked=0, Total=19182 [2022-01-18 07:39:02,520 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 755 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 5918 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 4090 SdHoareTripleChecker+Invalid, 6096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 5918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:02,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 4090 Invalid, 6096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 5918 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-18 07:39:02,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12887 states. [2022-01-18 07:39:02,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12887 to 5329. [2022-01-18 07:39:02,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5329 states, 5328 states have (on average 3.459834834834835) internal successors, (18434), 5328 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) [2022-01-18 07:39:02,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5329 states to 5329 states and 18434 transitions. [2022-01-18 07:39:02,652 INFO L78 Accepts]: Start accepts. Automaton has 5329 states and 18434 transitions. Word has length 39 [2022-01-18 07:39:02,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:02,652 INFO L470 AbstractCegarLoop]: Abstraction has 5329 states and 18434 transitions. [2022-01-18 07:39:02,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:02,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5329 states and 18434 transitions. [2022-01-18 07:39:02,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:02,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:02,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:02,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-18 07:39:02,661 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:02,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:02,661 INFO L85 PathProgramCache]: Analyzing trace with hash 899372902, now seen corresponding path program 86 times [2022-01-18 07:39:02,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:02,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292846805] [2022-01-18 07:39:02,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:02,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:02,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:02,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:02,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292846805] [2022-01-18 07:39:02,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292846805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:02,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:02,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:39:02,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668258799] [2022-01-18 07:39:02,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:02,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:39:02,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:02,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:39:02,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:39:02,899 INFO L87 Difference]: Start difference. First operand 5329 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) [2022-01-18 07:39:05,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:05,219 INFO L93 Difference]: Finished difference Result 9492 states and 32707 transitions. [2022-01-18 07:39:05,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-01-18 07:39:05,220 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 [2022-01-18 07:39:05,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:05,242 INFO L225 Difference]: With dead ends: 9492 [2022-01-18 07:39:05,242 INFO L226 Difference]: Without dead ends: 9425 [2022-01-18 07:39:05,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1533 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=454, Invalid=4948, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 07:39:05,243 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 518 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 3726 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 3810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:05,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [518 Valid, 2665 Invalid, 3810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3726 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:39:05,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9425 states. [2022-01-18 07:39:05,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9425 to 5341. [2022-01-18 07:39:05,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5340 states have (on average 3.4569288389513106) internal successors, (18460), 5340 states have internal predecessors, (18460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:05,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 18460 transitions. [2022-01-18 07:39:05,353 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 18460 transitions. Word has length 39 [2022-01-18 07:39:05,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:05,353 INFO L470 AbstractCegarLoop]: Abstraction has 5341 states and 18460 transitions. [2022-01-18 07:39:05,353 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) [2022-01-18 07:39:05,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 18460 transitions. [2022-01-18 07:39:05,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:05,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:05,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:05,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-18 07:39:05,362 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:05,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:05,362 INFO L85 PathProgramCache]: Analyzing trace with hash 768778054, now seen corresponding path program 87 times [2022-01-18 07:39:05,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:05,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000887696] [2022-01-18 07:39:05,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:05,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:05,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:05,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:05,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000887696] [2022-01-18 07:39:05,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000887696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:05,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:05,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:39:05,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965142309] [2022-01-18 07:39:05,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:05,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:39:05,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:05,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:39:05,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:39:05,574 INFO L87 Difference]: Start difference. First operand 5341 states and 18460 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:07,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:07,734 INFO L93 Difference]: Finished difference Result 9000 states and 30945 transitions. [2022-01-18 07:39:07,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-01-18 07:39:07,734 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:39:07,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:07,754 INFO L225 Difference]: With dead ends: 9000 [2022-01-18 07:39:07,754 INFO L226 Difference]: Without dead ends: 8937 [2022-01-18 07:39:07,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=431, Invalid=4539, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 07:39:07,755 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 487 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 3315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:07,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 2321 Invalid, 3315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3232 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:39:07,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8937 states. [2022-01-18 07:39:07,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8937 to 5333. [2022-01-18 07:39:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5333 states, 5332 states have (on average 3.458364591147787) internal successors, (18440), 5332 states have internal predecessors, (18440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:07,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5333 states to 5333 states and 18440 transitions. [2022-01-18 07:39:07,858 INFO L78 Accepts]: Start accepts. Automaton has 5333 states and 18440 transitions. Word has length 39 [2022-01-18 07:39:07,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:07,858 INFO L470 AbstractCegarLoop]: Abstraction has 5333 states and 18440 transitions. [2022-01-18 07:39:07,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:07,858 INFO L276 IsEmpty]: Start isEmpty. Operand 5333 states and 18440 transitions. [2022-01-18 07:39:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:07,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:07,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:07,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-18 07:39:07,867 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:07,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:07,867 INFO L85 PathProgramCache]: Analyzing trace with hash 633099462, now seen corresponding path program 88 times [2022-01-18 07:39:07,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:07,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082092849] [2022-01-18 07:39:07,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:07,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:08,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:08,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:08,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082092849] [2022-01-18 07:39:08,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082092849] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:08,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:08,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:39:08,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000332901] [2022-01-18 07:39:08,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:08,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:39:08,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:08,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:39:08,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:39:08,087 INFO L87 Difference]: Start difference. First operand 5333 states and 18440 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:11,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:11,175 INFO L93 Difference]: Finished difference Result 9823 states and 33613 transitions. [2022-01-18 07:39:11,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-01-18 07:39:11,175 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:39:11,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:11,197 INFO L225 Difference]: With dead ends: 9823 [2022-01-18 07:39:11,197 INFO L226 Difference]: Without dead ends: 9780 [2022-01-18 07:39:11,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3371 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=783, Invalid=9317, Unknown=0, NotChecked=0, Total=10100 [2022-01-18 07:39:11,199 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 634 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 3574 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 3713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 3574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:11,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 2439 Invalid, 3713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 3574 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:39:11,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9780 states. [2022-01-18 07:39:11,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9780 to 5345. [2022-01-18 07:39:11,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5345 states, 5344 states have (on average 3.456961077844311) internal successors, (18474), 5344 states have internal predecessors, (18474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:11,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5345 states to 5345 states and 18474 transitions. [2022-01-18 07:39:11,309 INFO L78 Accepts]: Start accepts. Automaton has 5345 states and 18474 transitions. Word has length 39 [2022-01-18 07:39:11,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:11,309 INFO L470 AbstractCegarLoop]: Abstraction has 5345 states and 18474 transitions. [2022-01-18 07:39:11,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:11,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5345 states and 18474 transitions. [2022-01-18 07:39:11,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:11,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:11,317 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] [2022-01-18 07:39:11,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-18 07:39:11,318 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:11,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:11,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1147498840, now seen corresponding path program 89 times [2022-01-18 07:39:11,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:11,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680199021] [2022-01-18 07:39:11,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:11,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:11,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:11,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:11,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680199021] [2022-01-18 07:39:11,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680199021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:11,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:11,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:39:11,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828987477] [2022-01-18 07:39:11,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:11,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:39:11,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:11,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:39:11,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:39:11,562 INFO L87 Difference]: Start difference. First operand 5345 states and 18474 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:15,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:15,033 INFO L93 Difference]: Finished difference Result 10921 states and 37303 transitions. [2022-01-18 07:39:15,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-01-18 07:39:15,034 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 [2022-01-18 07:39:15,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:15,058 INFO L225 Difference]: With dead ends: 10921 [2022-01-18 07:39:15,058 INFO L226 Difference]: Without dead ends: 10869 [2022-01-18 07:39:15,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4056 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=848, Invalid=10924, Unknown=0, NotChecked=0, Total=11772 [2022-01-18 07:39:15,060 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 675 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 4029 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 4176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 4029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:15,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 2903 Invalid, 4176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 4029 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:39:15,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10869 states. [2022-01-18 07:39:15,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10869 to 5333. [2022-01-18 07:39:15,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5333 states, 5332 states have (on average 3.458364591147787) internal successors, (18440), 5332 states have internal predecessors, (18440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:15,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5333 states to 5333 states and 18440 transitions. [2022-01-18 07:39:15,214 INFO L78 Accepts]: Start accepts. Automaton has 5333 states and 18440 transitions. Word has length 39 [2022-01-18 07:39:15,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:15,214 INFO L470 AbstractCegarLoop]: Abstraction has 5333 states and 18440 transitions. [2022-01-18 07:39:15,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:15,214 INFO L276 IsEmpty]: Start isEmpty. Operand 5333 states and 18440 transitions. [2022-01-18 07:39:15,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:15,222 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:15,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:15,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-18 07:39:15,222 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:15,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:15,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1551583032, now seen corresponding path program 90 times [2022-01-18 07:39:15,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:15,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117033555] [2022-01-18 07:39:15,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:15,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:15,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:15,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:15,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117033555] [2022-01-18 07:39:15,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117033555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:15,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:15,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:39:15,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395419372] [2022-01-18 07:39:15,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:15,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:39:15,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:15,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:39:15,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:39:15,444 INFO L87 Difference]: Start difference. First operand 5333 states and 18440 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:17,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:17,730 INFO L93 Difference]: Finished difference Result 9138 states and 31246 transitions. [2022-01-18 07:39:17,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 07:39:17,730 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 [2022-01-18 07:39:17,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:17,751 INFO L225 Difference]: With dead ends: 9138 [2022-01-18 07:39:17,751 INFO L226 Difference]: Without dead ends: 9083 [2022-01-18 07:39:17,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1595 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=475, Invalid=5075, Unknown=0, NotChecked=0, Total=5550 [2022-01-18 07:39:17,752 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 509 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 3285 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 3371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:17,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 2321 Invalid, 3371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3285 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:39:17,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9083 states. [2022-01-18 07:39:17,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9083 to 5335. [2022-01-18 07:39:17,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 3.4576302962129732) internal successors, (18443), 5334 states have internal predecessors, (18443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:17,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 18443 transitions. [2022-01-18 07:39:17,918 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 18443 transitions. Word has length 39 [2022-01-18 07:39:17,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:17,919 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 18443 transitions. [2022-01-18 07:39:17,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:17,919 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 18443 transitions. [2022-01-18 07:39:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:17,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:17,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:17,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-18 07:39:17,928 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:17,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:17,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1570732042, now seen corresponding path program 91 times [2022-01-18 07:39:17,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:17,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354429765] [2022-01-18 07:39:17,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:17,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:18,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:18,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:18,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354429765] [2022-01-18 07:39:18,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354429765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:18,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:18,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:39:18,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787340131] [2022-01-18 07:39:18,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:18,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:39:18,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:18,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:39:18,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:39:18,156 INFO L87 Difference]: Start difference. First operand 5335 states and 18443 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:20,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:20,810 INFO L93 Difference]: Finished difference Result 10291 states and 35128 transitions. [2022-01-18 07:39:20,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 07:39:20,811 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 [2022-01-18 07:39:20,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:20,834 INFO L225 Difference]: With dead ends: 10291 [2022-01-18 07:39:20,834 INFO L226 Difference]: Without dead ends: 10165 [2022-01-18 07:39:20,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2127 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=553, Invalid=6419, Unknown=0, NotChecked=0, Total=6972 [2022-01-18 07:39:20,835 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 545 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 3992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:20,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 2931 Invalid, 3992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:39:20,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10165 states. [2022-01-18 07:39:20,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10165 to 5415. [2022-01-18 07:39:20,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 3.4599187292205396) internal successors, (18732), 5414 states have internal predecessors, (18732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:20,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 18732 transitions. [2022-01-18 07:39:20,984 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 18732 transitions. Word has length 39 [2022-01-18 07:39:20,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:20,984 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 18732 transitions. [2022-01-18 07:39:20,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:20,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 18732 transitions. [2022-01-18 07:39:20,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:20,993 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:20,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:20,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-18 07:39:20,993 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:20,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:20,994 INFO L85 PathProgramCache]: Analyzing trace with hash 671316280, now seen corresponding path program 92 times [2022-01-18 07:39:20,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:20,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107422672] [2022-01-18 07:39:20,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:20,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:21,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:21,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:21,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107422672] [2022-01-18 07:39:21,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107422672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:21,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:21,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:39:21,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581358936] [2022-01-18 07:39:21,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:21,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:39:21,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:21,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:39:21,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:39:21,228 INFO L87 Difference]: Start difference. First operand 5415 states and 18732 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:26,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:26,581 INFO L93 Difference]: Finished difference Result 12683 states and 43069 transitions. [2022-01-18 07:39:26,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-01-18 07:39:26,582 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:39:26,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:26,608 INFO L225 Difference]: With dead ends: 12683 [2022-01-18 07:39:26,609 INFO L226 Difference]: Without dead ends: 12546 [2022-01-18 07:39:26,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7828 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1236, Invalid=19644, Unknown=0, NotChecked=0, Total=20880 [2022-01-18 07:39:26,610 INFO L933 BasicCegarLoop]: 474 mSDtfsCounter, 778 mSDsluCounter, 4819 mSDsCounter, 0 mSdLazyCounter, 6979 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 4749 SdHoareTripleChecker+Invalid, 7158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 6979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:26,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [778 Valid, 4749 Invalid, 7158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 6979 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-18 07:39:26,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12546 states. [2022-01-18 07:39:26,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12546 to 5427. [2022-01-18 07:39:26,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5426 states have (on average 3.4600073719130116) internal successors, (18774), 5426 states have internal predecessors, (18774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:26,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 18774 transitions. [2022-01-18 07:39:26,729 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 18774 transitions. Word has length 39 [2022-01-18 07:39:26,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:26,729 INFO L470 AbstractCegarLoop]: Abstraction has 5427 states and 18774 transitions. [2022-01-18 07:39:26,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:26,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 18774 transitions. [2022-01-18 07:39:26,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:26,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:26,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:26,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-18 07:39:26,738 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:26,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:26,738 INFO L85 PathProgramCache]: Analyzing trace with hash -823574620, now seen corresponding path program 93 times [2022-01-18 07:39:26,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:26,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897537406] [2022-01-18 07:39:26,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:26,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:26,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:26,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:26,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897537406] [2022-01-18 07:39:26,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897537406] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:26,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:26,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:39:26,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565722801] [2022-01-18 07:39:26,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:26,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:39:26,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:26,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:39:26,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:39:26,950 INFO L87 Difference]: Start difference. First operand 5427 states and 18774 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:29,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:29,876 INFO L93 Difference]: Finished difference Result 9928 states and 33931 transitions. [2022-01-18 07:39:29,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-01-18 07:39:29,876 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:39:29,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:29,898 INFO L225 Difference]: With dead ends: 9928 [2022-01-18 07:39:29,898 INFO L226 Difference]: Without dead ends: 9864 [2022-01-18 07:39:29,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3135 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=733, Invalid=8773, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 07:39:29,899 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 629 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 3577 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 3710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 3577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:29,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 2430 Invalid, 3710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 3577 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:39:29,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9864 states. [2022-01-18 07:39:29,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9864 to 5419. [2022-01-18 07:39:29,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 3.4599483204134365) internal successors, (18746), 5418 states have internal predecessors, (18746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:30,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 18746 transitions. [2022-01-18 07:39:30,010 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 18746 transitions. Word has length 39 [2022-01-18 07:39:30,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:30,010 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 18746 transitions. [2022-01-18 07:39:30,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:30,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 18746 transitions. [2022-01-18 07:39:30,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:30,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:30,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:30,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-18 07:39:30,019 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:30,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:30,019 INFO L85 PathProgramCache]: Analyzing trace with hash 94908950, now seen corresponding path program 94 times [2022-01-18 07:39:30,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:30,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912332862] [2022-01-18 07:39:30,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:30,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:30,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:30,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:30,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912332862] [2022-01-18 07:39:30,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912332862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:30,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:30,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:39:30,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53127962] [2022-01-18 07:39:30,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:30,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:39:30,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:30,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:39:30,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:39:30,228 INFO L87 Difference]: Start difference. First operand 5419 states and 18746 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:32,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:32,395 INFO L93 Difference]: Finished difference Result 9190 states and 31423 transitions. [2022-01-18 07:39:32,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 07:39:32,395 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:39:32,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:32,414 INFO L225 Difference]: With dead ends: 9190 [2022-01-18 07:39:32,414 INFO L226 Difference]: Without dead ends: 9135 [2022-01-18 07:39:32,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1427 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=430, Invalid=4682, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 07:39:32,415 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 497 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 3357 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 2371 SdHoareTripleChecker+Invalid, 3438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:32,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 2371 Invalid, 3438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 3357 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:39:32,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9135 states. [2022-01-18 07:39:32,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9135 to 5425. [2022-01-18 07:39:32,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5425 states, 5424 states have (on average 3.458517699115044) internal successors, (18759), 5424 states have internal predecessors, (18759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:32,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5425 states to 5425 states and 18759 transitions. [2022-01-18 07:39:32,508 INFO L78 Accepts]: Start accepts. Automaton has 5425 states and 18759 transitions. Word has length 39 [2022-01-18 07:39:32,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:32,508 INFO L470 AbstractCegarLoop]: Abstraction has 5425 states and 18759 transitions. [2022-01-18 07:39:32,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:32,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5425 states and 18759 transitions. [2022-01-18 07:39:32,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:32,517 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:32,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:32,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-18 07:39:32,517 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:32,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:32,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1267561172, now seen corresponding path program 95 times [2022-01-18 07:39:32,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:32,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340840585] [2022-01-18 07:39:32,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:32,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:32,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:32,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:32,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340840585] [2022-01-18 07:39:32,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340840585] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:32,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:32,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:39:32,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673991353] [2022-01-18 07:39:32,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:32,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:39:32,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:32,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:39:32,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:39:32,734 INFO L87 Difference]: Start difference. First operand 5425 states and 18759 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:35,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:35,371 INFO L93 Difference]: Finished difference Result 10376 states and 35342 transitions. [2022-01-18 07:39:35,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 07:39:35,372 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:39:35,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:35,393 INFO L225 Difference]: With dead ends: 10376 [2022-01-18 07:39:35,393 INFO L226 Difference]: Without dead ends: 10316 [2022-01-18 07:39:35,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2258 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=568, Invalid=6742, Unknown=0, NotChecked=0, Total=7310 [2022-01-18 07:39:35,394 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 565 mSDsluCounter, 3182 mSDsCounter, 0 mSdLazyCounter, 3923 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 4028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 3923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:35,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 2942 Invalid, 4028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 3923 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:39:35,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10316 states. [2022-01-18 07:39:35,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10316 to 5423. [2022-01-18 07:39:35,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5422 states have (on average 3.4588712652157874) internal successors, (18754), 5422 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:35,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 18754 transitions. [2022-01-18 07:39:35,519 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 18754 transitions. Word has length 39 [2022-01-18 07:39:35,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:35,519 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 18754 transitions. [2022-01-18 07:39:35,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:35,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 18754 transitions. [2022-01-18 07:39:35,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:35,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:35,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:35,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-18 07:39:35,527 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:35,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:35,528 INFO L85 PathProgramCache]: Analyzing trace with hash -812005370, now seen corresponding path program 96 times [2022-01-18 07:39:35,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:35,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387390606] [2022-01-18 07:39:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:35,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:35,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:35,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387390606] [2022-01-18 07:39:35,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387390606] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:35,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:35,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:39:35,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176675272] [2022-01-18 07:39:35,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:35,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:39:35,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:35,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:39:35,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:39:35,742 INFO L87 Difference]: Start difference. First operand 5423 states and 18754 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:37,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:37,985 INFO L93 Difference]: Finished difference Result 10137 states and 34744 transitions. [2022-01-18 07:39:37,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-01-18 07:39:37,985 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:39:37,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:38,005 INFO L225 Difference]: With dead ends: 10137 [2022-01-18 07:39:38,006 INFO L226 Difference]: Without dead ends: 10061 [2022-01-18 07:39:38,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1705 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=464, Invalid=5236, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 07:39:38,006 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 504 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 3456 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 3541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:38,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [504 Valid, 2574 Invalid, 3541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 3456 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:39:38,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10061 states. [2022-01-18 07:39:38,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10061 to 5431. [2022-01-18 07:39:38,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 5430 states have (on average 3.4567219152854514) internal successors, (18770), 5430 states have internal predecessors, (18770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:38,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 18770 transitions. [2022-01-18 07:39:38,103 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 18770 transitions. Word has length 39 [2022-01-18 07:39:38,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:38,103 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 18770 transitions. [2022-01-18 07:39:38,103 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) [2022-01-18 07:39:38,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 18770 transitions. [2022-01-18 07:39:38,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:38,110 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:38,110 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] [2022-01-18 07:39:38,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-18 07:39:38,111 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:38,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:38,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1830058982, now seen corresponding path program 97 times [2022-01-18 07:39:38,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:38,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362077169] [2022-01-18 07:39:38,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:38,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:38,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:38,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:38,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362077169] [2022-01-18 07:39:38,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362077169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:38,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:38,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:39:38,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659786173] [2022-01-18 07:39:38,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:38,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:39:38,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:38,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:39:38,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:39:38,337 INFO L87 Difference]: Start difference. First operand 5431 states and 18770 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:40,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:40,771 INFO L93 Difference]: Finished difference Result 10263 states and 35075 transitions. [2022-01-18 07:39:40,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-01-18 07:39:40,772 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:39:40,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:40,792 INFO L225 Difference]: With dead ends: 10263 [2022-01-18 07:39:40,792 INFO L226 Difference]: Without dead ends: 10177 [2022-01-18 07:39:40,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2062 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=540, Invalid=6266, Unknown=0, NotChecked=0, Total=6806 [2022-01-18 07:39:40,793 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 547 mSDsluCounter, 3110 mSDsCounter, 0 mSdLazyCounter, 3848 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 3951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:40,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 2889 Invalid, 3951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3848 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:39:40,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10177 states. [2022-01-18 07:39:40,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10177 to 5411. [2022-01-18 07:39:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5410 states have (on average 3.4598890942698706) internal successors, (18718), 5410 states have internal predecessors, (18718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:40,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 18718 transitions. [2022-01-18 07:39:40,893 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 18718 transitions. Word has length 39 [2022-01-18 07:39:40,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:40,893 INFO L470 AbstractCegarLoop]: Abstraction has 5411 states and 18718 transitions. [2022-01-18 07:39:40,893 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) [2022-01-18 07:39:40,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 18718 transitions. [2022-01-18 07:39:40,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:40,901 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:40,901 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] [2022-01-18 07:39:40,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-18 07:39:40,901 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:40,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:40,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1437771772, now seen corresponding path program 98 times [2022-01-18 07:39:40,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:40,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069772428] [2022-01-18 07:39:40,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:40,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:41,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:41,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069772428] [2022-01-18 07:39:41,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069772428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:41,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:41,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:39:41,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795784152] [2022-01-18 07:39:41,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:41,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:39:41,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:41,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:39:41,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:39:41,110 INFO L87 Difference]: Start difference. First operand 5411 states and 18718 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:44,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:44,290 INFO L93 Difference]: Finished difference Result 10604 states and 36407 transitions. [2022-01-18 07:39:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-18 07:39:44,291 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:39:44,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:44,313 INFO L225 Difference]: With dead ends: 10604 [2022-01-18 07:39:44,313 INFO L226 Difference]: Without dead ends: 10460 [2022-01-18 07:39:44,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3017 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=690, Invalid=8430, Unknown=0, NotChecked=0, Total=9120 [2022-01-18 07:39:44,316 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 561 mSDsluCounter, 3625 mSDsCounter, 0 mSdLazyCounter, 4828 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 4911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 4828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:44,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 3563 Invalid, 4911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 4828 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:39:44,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10460 states. [2022-01-18 07:39:44,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10460 to 5619. [2022-01-18 07:39:44,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5619 states, 5618 states have (on average 3.450694197223211) internal successors, (19386), 5618 states have internal predecessors, (19386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:44,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5619 states to 5619 states and 19386 transitions. [2022-01-18 07:39:44,422 INFO L78 Accepts]: Start accepts. Automaton has 5619 states and 19386 transitions. Word has length 39 [2022-01-18 07:39:44,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:44,422 INFO L470 AbstractCegarLoop]: Abstraction has 5619 states and 19386 transitions. [2022-01-18 07:39:44,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:44,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5619 states and 19386 transitions. [2022-01-18 07:39:44,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:44,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:44,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:44,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-18 07:39:44,430 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:44,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:44,431 INFO L85 PathProgramCache]: Analyzing trace with hash -281844198, now seen corresponding path program 99 times [2022-01-18 07:39:44,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:44,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687976880] [2022-01-18 07:39:44,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:44,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:44,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:44,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687976880] [2022-01-18 07:39:44,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687976880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:44,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:44,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:39:44,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107520473] [2022-01-18 07:39:44,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:44,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:39:44,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:44,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:39:44,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:39:44,625 INFO L87 Difference]: Start difference. First operand 5619 states and 19386 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:49,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:49,056 INFO L93 Difference]: Finished difference Result 12549 states and 42583 transitions. [2022-01-18 07:39:49,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-01-18 07:39:49,056 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:39:49,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:49,087 INFO L225 Difference]: With dead ends: 12549 [2022-01-18 07:39:49,087 INFO L226 Difference]: Without dead ends: 12413 [2022-01-18 07:39:49,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5893 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1103, Invalid=14899, Unknown=0, NotChecked=0, Total=16002 [2022-01-18 07:39:49,090 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 690 mSDsluCounter, 3765 mSDsCounter, 0 mSdLazyCounter, 5370 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 3697 SdHoareTripleChecker+Invalid, 5510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 5370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:49,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [690 Valid, 3697 Invalid, 5510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 5370 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 07:39:49,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12413 states. [2022-01-18 07:39:49,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12413 to 5767. [2022-01-18 07:39:49,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5767 states, 5766 states have (on average 3.448664585501214) internal successors, (19885), 5766 states have internal predecessors, (19885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:49,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5767 states to 5767 states and 19885 transitions. [2022-01-18 07:39:49,257 INFO L78 Accepts]: Start accepts. Automaton has 5767 states and 19885 transitions. Word has length 39 [2022-01-18 07:39:49,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:49,257 INFO L470 AbstractCegarLoop]: Abstraction has 5767 states and 19885 transitions. [2022-01-18 07:39:49,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:49,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5767 states and 19885 transitions. [2022-01-18 07:39:49,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:49,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:49,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:49,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-18 07:39:49,266 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:49,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:49,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2062442500, now seen corresponding path program 100 times [2022-01-18 07:39:49,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:49,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370577623] [2022-01-18 07:39:49,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:49,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:49,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:49,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:49,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370577623] [2022-01-18 07:39:49,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370577623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:49,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:49,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:39:49,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20929922] [2022-01-18 07:39:49,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:49,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:39:49,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:49,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:39:49,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:39:49,483 INFO L87 Difference]: Start difference. First operand 5767 states and 19885 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:53,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:53,910 INFO L93 Difference]: Finished difference Result 12984 states and 44180 transitions. [2022-01-18 07:39:53,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-01-18 07:39:53,910 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:39:53,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:53,938 INFO L225 Difference]: With dead ends: 12984 [2022-01-18 07:39:53,938 INFO L226 Difference]: Without dead ends: 12815 [2022-01-18 07:39:53,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6319 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1152, Invalid=15878, Unknown=0, NotChecked=0, Total=17030 [2022-01-18 07:39:53,940 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 696 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 5527 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 3757 SdHoareTripleChecker+Invalid, 5689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 5527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:53,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 3757 Invalid, 5689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 5527 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 07:39:53,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12815 states. [2022-01-18 07:39:54,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12815 to 5851. [2022-01-18 07:39:54,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5851 states, 5850 states have (on average 3.4483760683760685) internal successors, (20173), 5850 states have internal predecessors, (20173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:54,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5851 states to 5851 states and 20173 transitions. [2022-01-18 07:39:54,059 INFO L78 Accepts]: Start accepts. Automaton has 5851 states and 20173 transitions. Word has length 39 [2022-01-18 07:39:54,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:54,059 INFO L470 AbstractCegarLoop]: Abstraction has 5851 states and 20173 transitions. [2022-01-18 07:39:54,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:54,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5851 states and 20173 transitions. [2022-01-18 07:39:54,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:54,067 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:54,067 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] [2022-01-18 07:39:54,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-01-18 07:39:54,068 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:54,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:54,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1823709180, now seen corresponding path program 101 times [2022-01-18 07:39:54,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:54,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938936414] [2022-01-18 07:39:54,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:54,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:54,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:54,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:54,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938936414] [2022-01-18 07:39:54,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938936414] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:54,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:54,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:39:54,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916296580] [2022-01-18 07:39:54,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:54,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:39:54,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:54,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:39:54,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:39:54,278 INFO L87 Difference]: Start difference. First operand 5851 states and 20173 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:59,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:39:59,017 INFO L93 Difference]: Finished difference Result 12513 states and 42749 transitions. [2022-01-18 07:39:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-01-18 07:39:59,017 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:39:59,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:39:59,042 INFO L225 Difference]: With dead ends: 12513 [2022-01-18 07:39:59,042 INFO L226 Difference]: Without dead ends: 12266 [2022-01-18 07:39:59,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6851 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1151, Invalid=17209, Unknown=0, NotChecked=0, Total=18360 [2022-01-18 07:39:59,043 INFO L933 BasicCegarLoop]: 466 mSDtfsCounter, 688 mSDsluCounter, 4281 mSDsCounter, 0 mSdLazyCounter, 6379 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 4304 SdHoareTripleChecker+Invalid, 6542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 6379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:39:59,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [688 Valid, 4304 Invalid, 6542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 6379 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-18 07:39:59,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12266 states. [2022-01-18 07:39:59,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12266 to 5419. [2022-01-18 07:39:59,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 3.4562569213732006) internal successors, (18726), 5418 states have internal predecessors, (18726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:59,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 18726 transitions. [2022-01-18 07:39:59,169 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 18726 transitions. Word has length 39 [2022-01-18 07:39:59,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:39:59,169 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 18726 transitions. [2022-01-18 07:39:59,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:39:59,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 18726 transitions. [2022-01-18 07:39:59,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:39:59,180 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:39:59,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:39:59,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-01-18 07:39:59,180 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:39:59,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:39:59,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1162564890, now seen corresponding path program 102 times [2022-01-18 07:39:59,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:39:59,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860261195] [2022-01-18 07:39:59,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:39:59,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:39:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:39:59,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:39:59,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:39:59,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860261195] [2022-01-18 07:39:59,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860261195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:39:59,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:39:59,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:39:59,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580658707] [2022-01-18 07:39:59,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:39:59,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:39:59,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:39:59,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:39:59,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:39:59,386 INFO L87 Difference]: Start difference. First operand 5419 states and 18726 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:02,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:02,853 INFO L93 Difference]: Finished difference Result 10652 states and 36464 transitions. [2022-01-18 07:40:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-01-18 07:40:02,853 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:02,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:02,878 INFO L225 Difference]: With dead ends: 10652 [2022-01-18 07:40:02,879 INFO L226 Difference]: Without dead ends: 10585 [2022-01-18 07:40:02,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3583 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=755, Invalid=9957, Unknown=0, NotChecked=0, Total=10712 [2022-01-18 07:40:02,880 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 602 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 5255 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 3932 SdHoareTripleChecker+Invalid, 5349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 5255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:02,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [602 Valid, 3932 Invalid, 5349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 5255 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 07:40:02,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10585 states. [2022-01-18 07:40:02,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10585 to 5437. [2022-01-18 07:40:02,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5436 states have (on average 3.4536423841059603) internal successors, (18774), 5436 states have internal predecessors, (18774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:02,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 18774 transitions. [2022-01-18 07:40:02,989 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 18774 transitions. Word has length 39 [2022-01-18 07:40:02,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:02,989 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 18774 transitions. [2022-01-18 07:40:02,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:02,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 18774 transitions. [2022-01-18 07:40:02,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:02,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:02,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:02,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-01-18 07:40:02,997 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:02,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:02,997 INFO L85 PathProgramCache]: Analyzing trace with hash -557051080, now seen corresponding path program 103 times [2022-01-18 07:40:02,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:02,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489891144] [2022-01-18 07:40:02,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:02,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:03,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:03,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:03,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489891144] [2022-01-18 07:40:03,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489891144] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:03,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:03,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:03,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538839445] [2022-01-18 07:40:03,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:03,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:03,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:03,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:03,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:03,209 INFO L87 Difference]: Start difference. First operand 5437 states and 18774 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:07,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:07,779 INFO L93 Difference]: Finished difference Result 12169 states and 41355 transitions. [2022-01-18 07:40:07,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-01-18 07:40:07,779 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 [2022-01-18 07:40:07,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:07,804 INFO L225 Difference]: With dead ends: 12169 [2022-01-18 07:40:07,804 INFO L226 Difference]: Without dead ends: 12126 [2022-01-18 07:40:07,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6673 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1175, Invalid=16915, Unknown=0, NotChecked=0, Total=18090 [2022-01-18 07:40:07,806 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 719 mSDsluCounter, 4194 mSDsCounter, 0 mSdLazyCounter, 5835 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 4087 SdHoareTripleChecker+Invalid, 5986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 5835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:07,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 4087 Invalid, 5986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 5835 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-18 07:40:07,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12126 states. [2022-01-18 07:40:07,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12126 to 5461. [2022-01-18 07:40:07,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5461 states, 5460 states have (on average 3.451831501831502) internal successors, (18847), 5460 states have internal predecessors, (18847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:07,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5461 states to 5461 states and 18847 transitions. [2022-01-18 07:40:07,919 INFO L78 Accepts]: Start accepts. Automaton has 5461 states and 18847 transitions. Word has length 39 [2022-01-18 07:40:07,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:07,919 INFO L470 AbstractCegarLoop]: Abstraction has 5461 states and 18847 transitions. [2022-01-18 07:40:07,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:07,919 INFO L276 IsEmpty]: Start isEmpty. Operand 5461 states and 18847 transitions. [2022-01-18 07:40:07,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:07,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:07,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:07,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-01-18 07:40:07,927 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:07,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:07,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1957317914, now seen corresponding path program 104 times [2022-01-18 07:40:07,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:07,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575893404] [2022-01-18 07:40:07,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:07,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:08,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:08,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:08,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575893404] [2022-01-18 07:40:08,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575893404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:08,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:08,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:08,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843182533] [2022-01-18 07:40:08,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:08,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:08,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:08,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:08,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:08,149 INFO L87 Difference]: Start difference. First operand 5461 states and 18847 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:12,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:12,766 INFO L93 Difference]: Finished difference Result 12677 states and 43230 transitions. [2022-01-18 07:40:12,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-01-18 07:40:12,767 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:12,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:12,793 INFO L225 Difference]: With dead ends: 12677 [2022-01-18 07:40:12,793 INFO L226 Difference]: Without dead ends: 12601 [2022-01-18 07:40:12,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6890 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1205, Invalid=17427, Unknown=0, NotChecked=0, Total=18632 [2022-01-18 07:40:12,795 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 719 mSDsluCounter, 4219 mSDsCounter, 0 mSdLazyCounter, 5998 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 6171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 5998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:12,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 4126 Invalid, 6171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 5998 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-18 07:40:12,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12601 states. [2022-01-18 07:40:12,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12601 to 5431. [2022-01-18 07:40:12,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 5430 states have (on average 3.4556169429097605) internal successors, (18764), 5430 states have internal predecessors, (18764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:12,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 18764 transitions. [2022-01-18 07:40:12,909 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 18764 transitions. Word has length 39 [2022-01-18 07:40:12,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:12,910 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 18764 transitions. [2022-01-18 07:40:12,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:12,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 18764 transitions. [2022-01-18 07:40:12,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:12,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:12,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:12,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-01-18 07:40:12,917 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:12,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:12,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1825858342, now seen corresponding path program 105 times [2022-01-18 07:40:12,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:12,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276267027] [2022-01-18 07:40:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:12,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:13,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:13,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:13,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276267027] [2022-01-18 07:40:13,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276267027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:13,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:13,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:13,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074385879] [2022-01-18 07:40:13,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:13,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:13,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:13,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:13,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:13,123 INFO L87 Difference]: Start difference. First operand 5431 states and 18764 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:15,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:15,255 INFO L93 Difference]: Finished difference Result 9270 states and 32084 transitions. [2022-01-18 07:40:15,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-18 07:40:15,255 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:15,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:15,274 INFO L225 Difference]: With dead ends: 9270 [2022-01-18 07:40:15,274 INFO L226 Difference]: Without dead ends: 9203 [2022-01-18 07:40:15,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1423 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=418, Invalid=4694, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 07:40:15,275 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 474 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 3830 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2692 SdHoareTripleChecker+Invalid, 3905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 3830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:15,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2692 Invalid, 3905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 3830 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:40:15,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9203 states. [2022-01-18 07:40:15,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9203 to 5449. [2022-01-18 07:40:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5448 states have (on average 3.4519089574155655) internal successors, (18806), 5448 states have internal predecessors, (18806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:15,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 18806 transitions. [2022-01-18 07:40:15,369 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 18806 transitions. Word has length 39 [2022-01-18 07:40:15,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:15,369 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 18806 transitions. [2022-01-18 07:40:15,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:15,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 18806 transitions. [2022-01-18 07:40:15,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:15,377 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:15,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:15,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-01-18 07:40:15,377 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:15,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:15,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1467788134, now seen corresponding path program 106 times [2022-01-18 07:40:15,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:15,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177429135] [2022-01-18 07:40:15,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:15,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:15,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:15,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177429135] [2022-01-18 07:40:15,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177429135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:15,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:15,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:15,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275792283] [2022-01-18 07:40:15,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:15,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:15,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:15,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:15,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:15,578 INFO L87 Difference]: Start difference. First operand 5449 states and 18806 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:17,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:17,555 INFO L93 Difference]: Finished difference Result 8819 states and 30408 transitions. [2022-01-18 07:40:17,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-18 07:40:17,555 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:17,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:17,574 INFO L225 Difference]: With dead ends: 8819 [2022-01-18 07:40:17,574 INFO L226 Difference]: Without dead ends: 8744 [2022-01-18 07:40:17,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=395, Invalid=4297, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 07:40:17,575 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 451 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 3343 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 3417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:17,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 2355 Invalid, 3417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3343 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:40:17,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8744 states. [2022-01-18 07:40:17,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8744 to 5437. [2022-01-18 07:40:17,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5437 states, 5436 states have (on average 3.4536423841059603) internal successors, (18774), 5436 states have internal predecessors, (18774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:17,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 18774 transitions. [2022-01-18 07:40:17,668 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 18774 transitions. Word has length 39 [2022-01-18 07:40:17,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:17,669 INFO L470 AbstractCegarLoop]: Abstraction has 5437 states and 18774 transitions. [2022-01-18 07:40:17,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:17,669 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 18774 transitions. [2022-01-18 07:40:17,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:17,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:17,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:17,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-01-18 07:40:17,693 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:17,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:17,693 INFO L85 PathProgramCache]: Analyzing trace with hash 160516920, now seen corresponding path program 107 times [2022-01-18 07:40:17,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:17,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149033740] [2022-01-18 07:40:17,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:17,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:17,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:17,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:17,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149033740] [2022-01-18 07:40:17,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149033740] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:17,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:17,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:17,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68376631] [2022-01-18 07:40:17,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:17,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:17,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:17,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:17,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:17,907 INFO L87 Difference]: Start difference. First operand 5437 states and 18774 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:20,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:20,681 INFO L93 Difference]: Finished difference Result 9692 states and 33271 transitions. [2022-01-18 07:40:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-01-18 07:40:20,682 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:20,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:20,703 INFO L225 Difference]: With dead ends: 9692 [2022-01-18 07:40:20,703 INFO L226 Difference]: Without dead ends: 9649 [2022-01-18 07:40:20,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3136 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=717, Invalid=8789, Unknown=0, NotChecked=0, Total=9506 [2022-01-18 07:40:20,704 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 619 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 3648 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 3648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:20,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [619 Valid, 2478 Invalid, 3786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 3648 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:40:20,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-01-18 07:40:20,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 5452. [2022-01-18 07:40:20,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5452 states, 5451 states have (on average 3.4525775087139974) internal successors, (18820), 5451 states have internal predecessors, (18820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:20,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5452 states to 5452 states and 18820 transitions. [2022-01-18 07:40:20,802 INFO L78 Accepts]: Start accepts. Automaton has 5452 states and 18820 transitions. Word has length 39 [2022-01-18 07:40:20,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:20,802 INFO L470 AbstractCegarLoop]: Abstraction has 5452 states and 18820 transitions. [2022-01-18 07:40:20,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:20,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5452 states and 18820 transitions. [2022-01-18 07:40:20,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:20,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:20,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:20,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-01-18 07:40:20,810 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:20,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:20,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1620081382, now seen corresponding path program 108 times [2022-01-18 07:40:20,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:20,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438702078] [2022-01-18 07:40:20,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:20,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:21,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:21,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:21,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438702078] [2022-01-18 07:40:21,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438702078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:21,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:21,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:21,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66730858] [2022-01-18 07:40:21,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:21,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:21,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:21,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:21,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:21,017 INFO L87 Difference]: Start difference. First operand 5452 states and 18820 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:24,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:24,169 INFO L93 Difference]: Finished difference Result 10742 states and 36805 transitions. [2022-01-18 07:40:24,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-01-18 07:40:24,169 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:24,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:24,192 INFO L225 Difference]: With dead ends: 10742 [2022-01-18 07:40:24,192 INFO L226 Difference]: Without dead ends: 10690 [2022-01-18 07:40:24,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3797 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=782, Invalid=10348, Unknown=0, NotChecked=0, Total=11130 [2022-01-18 07:40:24,194 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 660 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 4107 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 2939 SdHoareTripleChecker+Invalid, 4254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 4107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:24,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 2939 Invalid, 4254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 4107 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:40:24,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10690 states. [2022-01-18 07:40:24,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10690 to 5446. [2022-01-18 07:40:24,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5446 states, 5445 states have (on average 3.453443526170799) internal successors, (18804), 5445 states have internal predecessors, (18804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:24,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 18804 transitions. [2022-01-18 07:40:24,298 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 18804 transitions. Word has length 39 [2022-01-18 07:40:24,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:24,298 INFO L470 AbstractCegarLoop]: Abstraction has 5446 states and 18804 transitions. [2022-01-18 07:40:24,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:24,298 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 18804 transitions. [2022-01-18 07:40:24,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:24,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:24,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:24,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-01-18 07:40:24,305 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:24,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:24,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1376902310, now seen corresponding path program 109 times [2022-01-18 07:40:24,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:24,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331848910] [2022-01-18 07:40:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:24,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:24,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:24,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:24,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331848910] [2022-01-18 07:40:24,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331848910] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:24,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:24,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:24,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069643596] [2022-01-18 07:40:24,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:24,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:24,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:24,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:24,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:24,513 INFO L87 Difference]: Start difference. First operand 5446 states and 18804 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:26,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:26,504 INFO L93 Difference]: Finished difference Result 8972 states and 30755 transitions. [2022-01-18 07:40:26,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-18 07:40:26,504 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:26,521 INFO L225 Difference]: With dead ends: 8972 [2022-01-18 07:40:26,521 INFO L226 Difference]: Without dead ends: 8909 [2022-01-18 07:40:26,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1432 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=422, Invalid=4690, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 07:40:26,521 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 475 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 3386 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 3465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 3386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:26,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [475 Valid, 2361 Invalid, 3465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 3386 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:40:26,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8909 states. [2022-01-18 07:40:26,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8909 to 5449. [2022-01-18 07:40:26,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5449 states, 5448 states have (on average 3.452459618208517) internal successors, (18809), 5448 states have internal predecessors, (18809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:26,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5449 states to 5449 states and 18809 transitions. [2022-01-18 07:40:26,604 INFO L78 Accepts]: Start accepts. Automaton has 5449 states and 18809 transitions. Word has length 39 [2022-01-18 07:40:26,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:26,604 INFO L470 AbstractCegarLoop]: Abstraction has 5449 states and 18809 transitions. [2022-01-18 07:40:26,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand 5449 states and 18809 transitions. [2022-01-18 07:40:26,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:26,611 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:26,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:26,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-01-18 07:40:26,611 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:26,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:26,612 INFO L85 PathProgramCache]: Analyzing trace with hash 990423228, now seen corresponding path program 110 times [2022-01-18 07:40:26,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:26,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217028408] [2022-01-18 07:40:26,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:26,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:26,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:26,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:26,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217028408] [2022-01-18 07:40:26,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217028408] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:26,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:26,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:26,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191564589] [2022-01-18 07:40:26,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:26,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:26,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:26,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:26,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:26,827 INFO L87 Difference]: Start difference. First operand 5449 states and 18809 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:29,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:29,292 INFO L93 Difference]: Finished difference Result 10049 states and 34391 transitions. [2022-01-18 07:40:29,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-01-18 07:40:29,293 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:29,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:29,313 INFO L225 Difference]: With dead ends: 10049 [2022-01-18 07:40:29,314 INFO L226 Difference]: Without dead ends: 9898 [2022-01-18 07:40:29,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1938 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=495, Invalid=5985, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 07:40:29,315 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 504 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 4050 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 4139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 4050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:29,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [504 Valid, 2953 Invalid, 4139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 4050 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:40:29,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9898 states. [2022-01-18 07:40:29,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9898 to 5438. [2022-01-18 07:40:29,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 3.454662497700938) internal successors, (18783), 5437 states have internal predecessors, (18783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:29,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 18783 transitions. [2022-01-18 07:40:29,417 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 18783 transitions. Word has length 39 [2022-01-18 07:40:29,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:29,417 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 18783 transitions. [2022-01-18 07:40:29,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:29,418 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 18783 transitions. [2022-01-18 07:40:29,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:29,425 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:29,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:29,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-01-18 07:40:29,425 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:29,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:29,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1408668860, now seen corresponding path program 111 times [2022-01-18 07:40:29,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:29,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024527777] [2022-01-18 07:40:29,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:29,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:29,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:29,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:29,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024527777] [2022-01-18 07:40:29,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024527777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:29,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:29,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:29,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192900000] [2022-01-18 07:40:29,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:29,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:29,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:29,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:29,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:29,632 INFO L87 Difference]: Start difference. First operand 5438 states and 18783 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:34,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:34,795 INFO L93 Difference]: Finished difference Result 12395 states and 42218 transitions. [2022-01-18 07:40:34,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-01-18 07:40:34,796 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 [2022-01-18 07:40:34,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:34,820 INFO L225 Difference]: With dead ends: 12395 [2022-01-18 07:40:34,820 INFO L226 Difference]: Without dead ends: 12258 [2022-01-18 07:40:34,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7572 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1206, Invalid=19100, Unknown=0, NotChecked=0, Total=20306 [2022-01-18 07:40:34,823 INFO L933 BasicCegarLoop]: 480 mSDtfsCounter, 748 mSDsluCounter, 4890 mSDsCounter, 0 mSdLazyCounter, 7017 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 4828 SdHoareTripleChecker+Invalid, 7193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 7017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:34,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [748 Valid, 4828 Invalid, 7193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 7017 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-18 07:40:34,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12258 states. [2022-01-18 07:40:34,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12258 to 5444. [2022-01-18 07:40:34,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 3.4537938636781185) internal successors, (18799), 5443 states have internal predecessors, (18799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:34,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 18799 transitions. [2022-01-18 07:40:34,956 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 18799 transitions. Word has length 39 [2022-01-18 07:40:34,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:34,956 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 18799 transitions. [2022-01-18 07:40:34,956 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) [2022-01-18 07:40:34,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 18799 transitions. [2022-01-18 07:40:34,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:34,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:34,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:34,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-01-18 07:40:34,967 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:34,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:34,968 INFO L85 PathProgramCache]: Analyzing trace with hash 667716762, now seen corresponding path program 112 times [2022-01-18 07:40:34,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:34,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521708133] [2022-01-18 07:40:34,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:34,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:35,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:35,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521708133] [2022-01-18 07:40:35,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521708133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:35,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:35,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:35,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588140854] [2022-01-18 07:40:35,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:35,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:35,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:35,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:35,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:35,178 INFO L87 Difference]: Start difference. First operand 5444 states and 18799 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:37,918 INFO L93 Difference]: Finished difference Result 9713 states and 33303 transitions. [2022-01-18 07:40:37,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-01-18 07:40:37,918 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:37,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:37,937 INFO L225 Difference]: With dead ends: 9713 [2022-01-18 07:40:37,938 INFO L226 Difference]: Without dead ends: 9649 [2022-01-18 07:40:37,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2910 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=677, Invalid=8253, Unknown=0, NotChecked=0, Total=8930 [2022-01-18 07:40:37,940 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 616 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 3607 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 3743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 3607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:37,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [616 Valid, 2482 Invalid, 3743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 3607 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:40:37,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-01-18 07:40:38,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 5450. [2022-01-18 07:40:38,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 3.4529271425949717) internal successors, (18815), 5449 states have internal predecessors, (18815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:38,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 18815 transitions. [2022-01-18 07:40:38,035 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 18815 transitions. Word has length 39 [2022-01-18 07:40:38,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:38,035 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 18815 transitions. [2022-01-18 07:40:38,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:38,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 18815 transitions. [2022-01-18 07:40:38,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:38,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:38,042 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] [2022-01-18 07:40:38,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-01-18 07:40:38,042 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:38,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:38,043 INFO L85 PathProgramCache]: Analyzing trace with hash -869702468, now seen corresponding path program 113 times [2022-01-18 07:40:38,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:38,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804553188] [2022-01-18 07:40:38,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:38,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:38,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:38,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:38,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804553188] [2022-01-18 07:40:38,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804553188] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:38,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:38,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:38,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998424561] [2022-01-18 07:40:38,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:38,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:38,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:38,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:38,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:38,256 INFO L87 Difference]: Start difference. First operand 5450 states and 18815 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:40,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:40,178 INFO L93 Difference]: Finished difference Result 9005 states and 30847 transitions. [2022-01-18 07:40:40,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 07:40:40,178 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:40,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:40,197 INFO L225 Difference]: With dead ends: 9005 [2022-01-18 07:40:40,198 INFO L226 Difference]: Without dead ends: 8942 [2022-01-18 07:40:40,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=387, Invalid=4305, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 07:40:40,198 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 471 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 3407 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 3484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 3407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:40,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 2424 Invalid, 3484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 3407 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:40:40,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8942 states. [2022-01-18 07:40:40,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8942 to 5459. [2022-01-18 07:40:40,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 3.451080982044705) internal successors, (18836), 5458 states have internal predecessors, (18836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:40,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 18836 transitions. [2022-01-18 07:40:40,296 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 18836 transitions. Word has length 39 [2022-01-18 07:40:40,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:40,296 INFO L470 AbstractCegarLoop]: Abstraction has 5459 states and 18836 transitions. [2022-01-18 07:40:40,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:40,296 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 18836 transitions. [2022-01-18 07:40:40,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:40,304 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:40,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:40,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-01-18 07:40:40,304 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:40,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:40,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1497623070, now seen corresponding path program 114 times [2022-01-18 07:40:40,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:40,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344966505] [2022-01-18 07:40:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:40,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:40,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:40,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:40,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344966505] [2022-01-18 07:40:40,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344966505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:40,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:40,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:40,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963733022] [2022-01-18 07:40:40,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:40,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:40,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:40,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:40,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:40,516 INFO L87 Difference]: Start difference. First operand 5459 states and 18836 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:43,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:43,036 INFO L93 Difference]: Finished difference Result 10156 states and 34664 transitions. [2022-01-18 07:40:43,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 07:40:43,036 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:43,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:43,056 INFO L225 Difference]: With dead ends: 10156 [2022-01-18 07:40:43,056 INFO L226 Difference]: Without dead ends: 10086 [2022-01-18 07:40:43,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2063 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=515, Invalid=6291, Unknown=0, NotChecked=0, Total=6806 [2022-01-18 07:40:43,056 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 539 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 4037 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2971 SdHoareTripleChecker+Invalid, 4131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 4037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:43,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 2971 Invalid, 4131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 4037 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:40:43,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10086 states. [2022-01-18 07:40:43,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10086 to 5456. [2022-01-18 07:40:43,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 5455 states have (on average 3.451512373968836) internal successors, (18828), 5455 states have internal predecessors, (18828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:43,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 18828 transitions. [2022-01-18 07:40:43,148 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 18828 transitions. Word has length 39 [2022-01-18 07:40:43,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:43,148 INFO L470 AbstractCegarLoop]: Abstraction has 5456 states and 18828 transitions. [2022-01-18 07:40:43,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:43,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 18828 transitions. [2022-01-18 07:40:43,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:43,156 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:43,156 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] [2022-01-18 07:40:43,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-01-18 07:40:43,157 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:43,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:43,157 INFO L85 PathProgramCache]: Analyzing trace with hash -518061130, now seen corresponding path program 115 times [2022-01-18 07:40:43,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:43,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062011088] [2022-01-18 07:40:43,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:43,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:43,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:43,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:43,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062011088] [2022-01-18 07:40:43,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062011088] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:43,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:43,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:40:43,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433731587] [2022-01-18 07:40:43,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:43,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:40:43,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:43,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:40:43,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:40:43,361 INFO L87 Difference]: Start difference. First operand 5456 states and 18828 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:45,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:45,494 INFO L93 Difference]: Finished difference Result 9853 states and 33899 transitions. [2022-01-18 07:40:45,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-01-18 07:40:45,494 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 [2022-01-18 07:40:45,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:45,515 INFO L225 Difference]: With dead ends: 9853 [2022-01-18 07:40:45,515 INFO L226 Difference]: Without dead ends: 9777 [2022-01-18 07:40:45,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1588 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=438, Invalid=4964, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 07:40:45,516 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 469 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 3498 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2608 SdHoareTripleChecker+Invalid, 3579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:45,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 2608 Invalid, 3579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 3498 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:40:45,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9777 states. [2022-01-18 07:40:45,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9777 to 5470. [2022-01-18 07:40:45,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5469 states have (on average 3.4481623697202415) internal successors, (18858), 5469 states have internal predecessors, (18858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 18858 transitions. [2022-01-18 07:40:45,618 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 18858 transitions. Word has length 39 [2022-01-18 07:40:45,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:45,618 INFO L470 AbstractCegarLoop]: Abstraction has 5470 states and 18858 transitions. [2022-01-18 07:40:45,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:45,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 18858 transitions. [2022-01-18 07:40:45,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:45,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:45,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:45,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-01-18 07:40:45,626 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:45,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:45,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2065983464, now seen corresponding path program 116 times [2022-01-18 07:40:45,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:45,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451005751] [2022-01-18 07:40:45,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:45,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:45,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:45,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:45,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451005751] [2022-01-18 07:40:45,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451005751] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:45,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:45,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:45,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9487004] [2022-01-18 07:40:45,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:45,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:45,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:45,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:45,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:45,850 INFO L87 Difference]: Start difference. First operand 5470 states and 18858 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:48,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:48,284 INFO L93 Difference]: Finished difference Result 10000 states and 34295 transitions. [2022-01-18 07:40:48,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-18 07:40:48,284 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:48,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:48,304 INFO L225 Difference]: With dead ends: 10000 [2022-01-18 07:40:48,305 INFO L226 Difference]: Without dead ends: 9889 [2022-01-18 07:40:48,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1935 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=504, Invalid=5976, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 07:40:48,306 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 509 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 3962 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 4054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 3962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:48,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 2918 Invalid, 4054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 3962 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:40:48,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9889 states. [2022-01-18 07:40:48,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9889 to 5438. [2022-01-18 07:40:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 3.455030347618172) internal successors, (18785), 5437 states have internal predecessors, (18785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:48,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 18785 transitions. [2022-01-18 07:40:48,411 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 18785 transitions. Word has length 39 [2022-01-18 07:40:48,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:48,411 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 18785 transitions. [2022-01-18 07:40:48,411 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) [2022-01-18 07:40:48,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 18785 transitions. [2022-01-18 07:40:48,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:48,419 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:48,419 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] [2022-01-18 07:40:48,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-01-18 07:40:48,419 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:48,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:48,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1992006216, now seen corresponding path program 117 times [2022-01-18 07:40:48,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:48,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963638648] [2022-01-18 07:40:48,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:48,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:48,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:48,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:48,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963638648] [2022-01-18 07:40:48,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963638648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:48,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:48,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:48,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632667322] [2022-01-18 07:40:48,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:48,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:48,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:48,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:48,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:48,624 INFO L87 Difference]: Start difference. First operand 5438 states and 18785 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:51,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:51,574 INFO L93 Difference]: Finished difference Result 10965 states and 37273 transitions. [2022-01-18 07:40:51,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 07:40:51,574 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:51,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:51,595 INFO L225 Difference]: With dead ends: 10965 [2022-01-18 07:40:51,596 INFO L226 Difference]: Without dead ends: 10835 [2022-01-18 07:40:51,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2585 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=647, Invalid=7543, Unknown=0, NotChecked=0, Total=8190 [2022-01-18 07:40:51,596 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 539 mSDsluCounter, 3739 mSDsCounter, 0 mSdLazyCounter, 4709 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 4805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 4709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:51,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 3484 Invalid, 4805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 4709 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:40:51,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10835 states. [2022-01-18 07:40:51,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10835 to 5645. [2022-01-18 07:40:51,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5645 states, 5644 states have (on average 3.4466690290574062) internal successors, (19453), 5644 states have internal predecessors, (19453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:51,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5645 states to 5645 states and 19453 transitions. [2022-01-18 07:40:51,698 INFO L78 Accepts]: Start accepts. Automaton has 5645 states and 19453 transitions. Word has length 39 [2022-01-18 07:40:51,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:51,698 INFO L470 AbstractCegarLoop]: Abstraction has 5645 states and 19453 transitions. [2022-01-18 07:40:51,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:51,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5645 states and 19453 transitions. [2022-01-18 07:40:51,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:51,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:51,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:51,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-01-18 07:40:51,706 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:51,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:51,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1861411368, now seen corresponding path program 118 times [2022-01-18 07:40:51,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:51,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241541600] [2022-01-18 07:40:51,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:51,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:51,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:51,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:51,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241541600] [2022-01-18 07:40:51,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241541600] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:51,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:51,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:51,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17398268] [2022-01-18 07:40:51,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:51,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:51,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:51,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:51,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:51,910 INFO L87 Difference]: Start difference. First operand 5645 states and 19453 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:54,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:54,176 INFO L93 Difference]: Finished difference Result 9638 states and 32961 transitions. [2022-01-18 07:40:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-18 07:40:54,176 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 [2022-01-18 07:40:54,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:54,200 INFO L225 Difference]: With dead ends: 9638 [2022-01-18 07:40:54,200 INFO L226 Difference]: Without dead ends: 9575 [2022-01-18 07:40:54,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1931 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=559, Invalid=5921, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 07:40:54,201 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 468 mSDsluCounter, 2908 mSDsCounter, 0 mSdLazyCounter, 3594 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 2614 SdHoareTripleChecker+Invalid, 3678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:54,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [468 Valid, 2614 Invalid, 3678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3594 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:40:54,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9575 states. [2022-01-18 07:40:54,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9575 to 5645. [2022-01-18 07:40:54,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5645 states, 5644 states have (on average 3.4459603118355777) internal successors, (19449), 5644 states have internal predecessors, (19449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:54,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5645 states to 5645 states and 19449 transitions. [2022-01-18 07:40:54,343 INFO L78 Accepts]: Start accepts. Automaton has 5645 states and 19449 transitions. Word has length 39 [2022-01-18 07:40:54,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:54,343 INFO L470 AbstractCegarLoop]: Abstraction has 5645 states and 19449 transitions. [2022-01-18 07:40:54,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:54,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5645 states and 19449 transitions. [2022-01-18 07:40:54,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:54,351 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:54,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:40:54,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-01-18 07:40:54,351 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:54,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:54,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1725732776, now seen corresponding path program 119 times [2022-01-18 07:40:54,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:54,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143038331] [2022-01-18 07:40:54,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:54,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:54,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:54,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143038331] [2022-01-18 07:40:54,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143038331] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:54,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:54,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:54,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532873727] [2022-01-18 07:40:54,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:54,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:54,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:54,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:54,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:54,557 INFO L87 Difference]: Start difference. First operand 5645 states and 19449 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:58,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:40:58,543 INFO L93 Difference]: Finished difference Result 12438 states and 41785 transitions. [2022-01-18 07:40:58,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-01-18 07:40:58,544 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:40:58,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:40:58,569 INFO L225 Difference]: With dead ends: 12438 [2022-01-18 07:40:58,570 INFO L226 Difference]: Without dead ends: 12242 [2022-01-18 07:40:58,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6246 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1157, Invalid=15873, Unknown=0, NotChecked=0, Total=17030 [2022-01-18 07:40:58,572 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 674 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 4933 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 5104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 4933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 07:40:58,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [674 Valid, 3542 Invalid, 5104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 4933 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 07:40:58,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12242 states. [2022-01-18 07:40:58,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12242 to 5991. [2022-01-18 07:40:58,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5991 states, 5990 states have (on average 3.46661101836394) internal successors, (20765), 5990 states have internal predecessors, (20765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:58,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5991 states to 5991 states and 20765 transitions. [2022-01-18 07:40:58,720 INFO L78 Accepts]: Start accepts. Automaton has 5991 states and 20765 transitions. Word has length 39 [2022-01-18 07:40:58,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:40:58,721 INFO L470 AbstractCegarLoop]: Abstraction has 5991 states and 20765 transitions. [2022-01-18 07:40:58,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:40:58,721 INFO L276 IsEmpty]: Start isEmpty. Operand 5991 states and 20765 transitions. [2022-01-18 07:40:58,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:40:58,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:40:58,729 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] [2022-01-18 07:40:58,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-01-18 07:40:58,729 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:40:58,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:40:58,730 INFO L85 PathProgramCache]: Analyzing trace with hash -54865526, now seen corresponding path program 120 times [2022-01-18 07:40:58,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:40:58,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135681791] [2022-01-18 07:40:58,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:40:58,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:40:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:40:58,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:40:58,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:40:58,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135681791] [2022-01-18 07:40:58,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135681791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:40:58,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:40:58,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:40:58,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381117482] [2022-01-18 07:40:58,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:40:58,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:40:58,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:40:58,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:40:58,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:40:58,934 INFO L87 Difference]: Start difference. First operand 5991 states and 20765 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:03,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:03,365 INFO L93 Difference]: Finished difference Result 13160 states and 44326 transitions. [2022-01-18 07:41:03,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-01-18 07:41:03,365 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:41:03,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:03,390 INFO L225 Difference]: With dead ends: 13160 [2022-01-18 07:41:03,391 INFO L226 Difference]: Without dead ends: 12985 [2022-01-18 07:41:03,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6915 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1227, Invalid=17405, Unknown=0, NotChecked=0, Total=18632 [2022-01-18 07:41:03,391 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 687 mSDsluCounter, 4055 mSDsCounter, 0 mSdLazyCounter, 5257 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 5439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 5257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:03,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [687 Valid, 3795 Invalid, 5439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 5257 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 07:41:03,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12985 states. [2022-01-18 07:41:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12985 to 6003. [2022-01-18 07:41:03,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6003 states, 6002 states have (on average 3.4680106631122958) internal successors, (20815), 6002 states have internal predecessors, (20815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:03,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 20815 transitions. [2022-01-18 07:41:03,505 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 20815 transitions. Word has length 39 [2022-01-18 07:41:03,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:03,505 INFO L470 AbstractCegarLoop]: Abstraction has 6003 states and 20815 transitions. [2022-01-18 07:41:03,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:03,505 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 20815 transitions. [2022-01-18 07:41:03,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:03,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:03,514 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] [2022-01-18 07:41:03,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-01-18 07:41:03,514 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:03,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:03,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1650750950, now seen corresponding path program 121 times [2022-01-18 07:41:03,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:03,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770278234] [2022-01-18 07:41:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:03,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:03,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:03,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770278234] [2022-01-18 07:41:03,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770278234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:03,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:03,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:03,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530872976] [2022-01-18 07:41:03,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:03,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:03,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:03,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:03,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:03,724 INFO L87 Difference]: Start difference. First operand 6003 states and 20815 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:06,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:06,161 INFO L93 Difference]: Finished difference Result 10096 states and 34556 transitions. [2022-01-18 07:41:06,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 07:41:06,161 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:41:06,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:06,181 INFO L225 Difference]: With dead ends: 10096 [2022-01-18 07:41:06,181 INFO L226 Difference]: Without dead ends: 10041 [2022-01-18 07:41:06,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2122 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=595, Invalid=6377, Unknown=0, NotChecked=0, Total=6972 [2022-01-18 07:41:06,182 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 484 mSDsluCounter, 2958 mSDsCounter, 0 mSdLazyCounter, 3651 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 3738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:06,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 2633 Invalid, 3738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3651 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:41:06,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10041 states. [2022-01-18 07:41:06,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10041 to 6005. [2022-01-18 07:41:06,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6005 states, 6004 states have (on average 3.4673550966022653) internal successors, (20818), 6004 states have internal predecessors, (20818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:06,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6005 states to 6005 states and 20818 transitions. [2022-01-18 07:41:06,287 INFO L78 Accepts]: Start accepts. Automaton has 6005 states and 20818 transitions. Word has length 39 [2022-01-18 07:41:06,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:06,287 INFO L470 AbstractCegarLoop]: Abstraction has 6005 states and 20818 transitions. [2022-01-18 07:41:06,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:06,287 INFO L276 IsEmpty]: Start isEmpty. Operand 6005 states and 20818 transitions. [2022-01-18 07:41:06,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:06,295 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:06,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:41:06,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-01-18 07:41:06,295 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:06,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:06,296 INFO L85 PathProgramCache]: Analyzing trace with hash -478098728, now seen corresponding path program 122 times [2022-01-18 07:41:06,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:06,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902568025] [2022-01-18 07:41:06,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:06,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:06,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:06,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:06,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902568025] [2022-01-18 07:41:06,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902568025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:06,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:06,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:06,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608780045] [2022-01-18 07:41:06,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:06,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:06,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:06,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:06,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:06,521 INFO L87 Difference]: Start difference. First operand 6005 states and 20818 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:09,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:09,216 INFO L93 Difference]: Finished difference Result 11129 states and 38066 transitions. [2022-01-18 07:41:09,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 07:41:09,217 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:41:09,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:09,239 INFO L225 Difference]: With dead ends: 11129 [2022-01-18 07:41:09,240 INFO L226 Difference]: Without dead ends: 11083 [2022-01-18 07:41:09,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2669 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=654, Invalid=7718, Unknown=0, NotChecked=0, Total=8372 [2022-01-18 07:41:09,241 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 523 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 4207 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 4307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 4207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:09,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 3190 Invalid, 4307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 4207 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:41:09,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11083 states. [2022-01-18 07:41:09,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11083 to 6009. [2022-01-18 07:41:09,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6009 states, 6008 states have (on average 3.4663781624500665) internal successors, (20826), 6008 states have internal predecessors, (20826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:09,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6009 states to 6009 states and 20826 transitions. [2022-01-18 07:41:09,353 INFO L78 Accepts]: Start accepts. Automaton has 6009 states and 20826 transitions. Word has length 39 [2022-01-18 07:41:09,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:09,353 INFO L470 AbstractCegarLoop]: Abstraction has 6009 states and 20826 transitions. [2022-01-18 07:41:09,353 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) [2022-01-18 07:41:09,353 INFO L276 IsEmpty]: Start isEmpty. Operand 6009 states and 20826 transitions. [2022-01-18 07:41:09,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:09,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:09,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:41:09,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-01-18 07:41:09,362 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:09,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:09,362 INFO L85 PathProgramCache]: Analyzing trace with hash -725564890, now seen corresponding path program 123 times [2022-01-18 07:41:09,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:09,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641662598] [2022-01-18 07:41:09,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:09,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:09,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:09,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:09,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641662598] [2022-01-18 07:41:09,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641662598] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:09,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:09,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:09,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237382268] [2022-01-18 07:41:09,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:09,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:09,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:09,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:09,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:09,585 INFO L87 Difference]: Start difference. First operand 6009 states and 20826 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:11,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:11,973 INFO L93 Difference]: Finished difference Result 9952 states and 34247 transitions. [2022-01-18 07:41:11,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 07:41:11,973 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:41:11,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:11,993 INFO L225 Difference]: With dead ends: 9952 [2022-01-18 07:41:11,993 INFO L226 Difference]: Without dead ends: 9899 [2022-01-18 07:41:11,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2120 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=602, Invalid=6370, Unknown=0, NotChecked=0, Total=6972 [2022-01-18 07:41:11,994 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 505 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 3546 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 2649 SdHoareTripleChecker+Invalid, 3639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:11,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 2649 Invalid, 3639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3546 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:41:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9899 states. [2022-01-18 07:41:12,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9899 to 5999. [2022-01-18 07:41:12,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5999 states, 5998 states have (on average 3.4689896632210737) internal successors, (20807), 5998 states have internal predecessors, (20807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:12,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5999 states to 5999 states and 20807 transitions. [2022-01-18 07:41:12,096 INFO L78 Accepts]: Start accepts. Automaton has 5999 states and 20807 transitions. Word has length 39 [2022-01-18 07:41:12,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:12,096 INFO L470 AbstractCegarLoop]: Abstraction has 5999 states and 20807 transitions. [2022-01-18 07:41:12,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:12,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5999 states and 20807 transitions. [2022-01-18 07:41:12,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:12,105 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:12,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:41:12,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-01-18 07:41:12,105 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:12,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:12,105 INFO L85 PathProgramCache]: Analyzing trace with hash 732974406, now seen corresponding path program 124 times [2022-01-18 07:41:12,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:12,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810894113] [2022-01-18 07:41:12,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:12,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:12,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:12,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810894113] [2022-01-18 07:41:12,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810894113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:12,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:12,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:12,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270942313] [2022-01-18 07:41:12,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:12,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:12,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:12,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:12,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:12,323 INFO L87 Difference]: Start difference. First operand 5999 states and 20807 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:15,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:15,222 INFO L93 Difference]: Finished difference Result 11369 states and 38815 transitions. [2022-01-18 07:41:15,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 07:41:15,222 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:41:15,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:15,244 INFO L225 Difference]: With dead ends: 11369 [2022-01-18 07:41:15,244 INFO L226 Difference]: Without dead ends: 11302 [2022-01-18 07:41:15,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2586 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=634, Invalid=7556, Unknown=0, NotChecked=0, Total=8190 [2022-01-18 07:41:15,245 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 534 mSDsluCounter, 3798 mSDsCounter, 0 mSdLazyCounter, 4837 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 3523 SdHoareTripleChecker+Invalid, 4928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 4837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:15,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 3523 Invalid, 4928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 4837 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:41:15,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11302 states. [2022-01-18 07:41:15,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11302 to 6017. [2022-01-18 07:41:15,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6017 states, 6016 states have (on average 3.465591755319149) internal successors, (20849), 6016 states have internal predecessors, (20849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:15,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6017 states to 6017 states and 20849 transitions. [2022-01-18 07:41:15,352 INFO L78 Accepts]: Start accepts. Automaton has 6017 states and 20849 transitions. Word has length 39 [2022-01-18 07:41:15,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:15,352 INFO L470 AbstractCegarLoop]: Abstraction has 6017 states and 20849 transitions. [2022-01-18 07:41:15,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:15,352 INFO L276 IsEmpty]: Start isEmpty. Operand 6017 states and 20849 transitions. [2022-01-18 07:41:15,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:15,361 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:15,361 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] [2022-01-18 07:41:15,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-01-18 07:41:15,361 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:15,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:15,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1091044614, now seen corresponding path program 125 times [2022-01-18 07:41:15,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:15,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993564863] [2022-01-18 07:41:15,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:15,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:15,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:15,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:15,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993564863] [2022-01-18 07:41:15,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993564863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:15,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:15,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:15,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041667743] [2022-01-18 07:41:15,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:15,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:15,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:15,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:15,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:15,562 INFO L87 Difference]: Start difference. First operand 6017 states and 20849 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:17,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:17,964 INFO L93 Difference]: Finished difference Result 10113 states and 34632 transitions. [2022-01-18 07:41:17,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-18 07:41:17,964 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:41:17,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:18,002 INFO L225 Difference]: With dead ends: 10113 [2022-01-18 07:41:18,002 INFO L226 Difference]: Without dead ends: 10038 [2022-01-18 07:41:18,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1931 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=546, Invalid=5934, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 07:41:18,003 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 477 mSDsluCounter, 3010 mSDsCounter, 0 mSdLazyCounter, 3765 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 3843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 3765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:18,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [477 Valid, 2676 Invalid, 3843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 3765 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:41:18,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10038 states. [2022-01-18 07:41:18,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10038 to 6017. [2022-01-18 07:41:18,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6017 states, 6016 states have (on average 3.464594414893617) internal successors, (20843), 6016 states have internal predecessors, (20843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6017 states to 6017 states and 20843 transitions. [2022-01-18 07:41:18,190 INFO L78 Accepts]: Start accepts. Automaton has 6017 states and 20843 transitions. Word has length 39 [2022-01-18 07:41:18,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:18,191 INFO L470 AbstractCegarLoop]: Abstraction has 6017 states and 20843 transitions. [2022-01-18 07:41:18,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:18,191 INFO L276 IsEmpty]: Start isEmpty. Operand 6017 states and 20843 transitions. [2022-01-18 07:41:18,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:18,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:18,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:41:18,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-01-18 07:41:18,202 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:18,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:18,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1575617628, now seen corresponding path program 126 times [2022-01-18 07:41:18,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:18,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132580627] [2022-01-18 07:41:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:18,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:18,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:18,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:18,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132580627] [2022-01-18 07:41:18,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132580627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:18,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:18,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:18,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029365676] [2022-01-18 07:41:18,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:18,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:18,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:18,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:18,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:18,407 INFO L87 Difference]: Start difference. First operand 6017 states and 20843 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:22,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:22,416 INFO L93 Difference]: Finished difference Result 12421 states and 41792 transitions. [2022-01-18 07:41:22,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-01-18 07:41:22,416 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:41:22,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:22,447 INFO L225 Difference]: With dead ends: 12421 [2022-01-18 07:41:22,448 INFO L226 Difference]: Without dead ends: 12254 [2022-01-18 07:41:22,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6236 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1144, Invalid=15886, Unknown=0, NotChecked=0, Total=17030 [2022-01-18 07:41:22,450 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 670 mSDsluCounter, 3878 mSDsCounter, 0 mSdLazyCounter, 5026 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 5191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 5026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:22,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 3557 Invalid, 5191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 5026 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 07:41:22,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12254 states. [2022-01-18 07:41:22,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12254 to 6026. [2022-01-18 07:41:22,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6025 states have (on average 3.4635684647302907) internal successors, (20868), 6025 states have internal predecessors, (20868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:22,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 20868 transitions. [2022-01-18 07:41:22,614 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 20868 transitions. Word has length 39 [2022-01-18 07:41:22,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:22,614 INFO L470 AbstractCegarLoop]: Abstraction has 6026 states and 20868 transitions. [2022-01-18 07:41:22,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 20868 transitions. [2022-01-18 07:41:22,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:22,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:22,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:41:22,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-01-18 07:41:22,623 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:22,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:22,624 INFO L85 PathProgramCache]: Analyzing trace with hash 938751366, now seen corresponding path program 127 times [2022-01-18 07:41:22,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:22,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684896411] [2022-01-18 07:41:22,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:22,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:22,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:22,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684896411] [2022-01-18 07:41:22,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684896411] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:22,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:22,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:22,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673864749] [2022-01-18 07:41:22,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:22,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:22,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:22,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:22,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:22,842 INFO L87 Difference]: Start difference. First operand 6026 states and 20868 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:27,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:27,173 INFO L93 Difference]: Finished difference Result 12965 states and 43816 transitions. [2022-01-18 07:41:27,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-01-18 07:41:27,174 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 [2022-01-18 07:41:27,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:27,203 INFO L225 Difference]: With dead ends: 12965 [2022-01-18 07:41:27,204 INFO L226 Difference]: Without dead ends: 12831 [2022-01-18 07:41:27,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7028 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1224, Invalid=17682, Unknown=0, NotChecked=0, Total=18906 [2022-01-18 07:41:27,205 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 684 mSDsluCounter, 4097 mSDsCounter, 0 mSdLazyCounter, 5351 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 5529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 5351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:27,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 3806 Invalid, 5529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 5351 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 07:41:27,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12831 states. [2022-01-18 07:41:27,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12831 to 5962. [2022-01-18 07:41:27,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5961 states have (on average 3.462170776715316) internal successors, (20638), 5961 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:27,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 20638 transitions. [2022-01-18 07:41:27,335 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 20638 transitions. Word has length 39 [2022-01-18 07:41:27,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:27,335 INFO L470 AbstractCegarLoop]: Abstraction has 5962 states and 20638 transitions. [2022-01-18 07:41:27,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:27,336 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 20638 transitions. [2022-01-18 07:41:27,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:27,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:27,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:41:27,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-01-18 07:41:27,347 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:27,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:27,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1181930438, now seen corresponding path program 128 times [2022-01-18 07:41:27,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:27,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753716736] [2022-01-18 07:41:27,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:27,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:27,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:27,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753716736] [2022-01-18 07:41:27,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753716736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:27,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:27,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:27,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856380735] [2022-01-18 07:41:27,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:27,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:27,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:27,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:27,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:27,566 INFO L87 Difference]: Start difference. First operand 5962 states and 20638 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:29,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:29,950 INFO L93 Difference]: Finished difference Result 10072 states and 34346 transitions. [2022-01-18 07:41:29,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 07:41:29,950 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:41:29,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:29,970 INFO L225 Difference]: With dead ends: 10072 [2022-01-18 07:41:29,971 INFO L226 Difference]: Without dead ends: 10009 [2022-01-18 07:41:29,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2123 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=574, Invalid=6398, Unknown=0, NotChecked=0, Total=6972 [2022-01-18 07:41:29,972 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 492 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 3800 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 3883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:29,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 2680 Invalid, 3883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3800 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:41:29,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10009 states. [2022-01-18 07:41:30,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10009 to 5965. [2022-01-18 07:41:30,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5965 states, 5964 states have (on average 3.461267605633803) internal successors, (20643), 5964 states have internal predecessors, (20643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:30,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5965 states to 5965 states and 20643 transitions. [2022-01-18 07:41:30,078 INFO L78 Accepts]: Start accepts. Automaton has 5965 states and 20643 transitions. Word has length 39 [2022-01-18 07:41:30,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:30,112 INFO L470 AbstractCegarLoop]: Abstraction has 5965 states and 20643 transitions. [2022-01-18 07:41:30,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:30,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5965 states and 20643 transitions. [2022-01-18 07:41:30,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:30,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:30,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:41:30,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-01-18 07:41:30,121 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:30,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:30,122 INFO L85 PathProgramCache]: Analyzing trace with hash -745711320, now seen corresponding path program 129 times [2022-01-18 07:41:30,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:30,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638393654] [2022-01-18 07:41:30,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:30,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:30,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:30,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638393654] [2022-01-18 07:41:30,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638393654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:30,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:30,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:30,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435943461] [2022-01-18 07:41:30,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:30,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:30,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:30,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:30,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:30,327 INFO L87 Difference]: Start difference. First operand 5965 states and 20643 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:33,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:33,191 INFO L93 Difference]: Finished difference Result 11071 states and 37791 transitions. [2022-01-18 07:41:33,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-18 07:41:33,191 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 [2022-01-18 07:41:33,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:33,215 INFO L225 Difference]: With dead ends: 11071 [2022-01-18 07:41:33,215 INFO L226 Difference]: Without dead ends: 11025 [2022-01-18 07:41:33,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2671 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=629, Invalid=7743, Unknown=0, NotChecked=0, Total=8372 [2022-01-18 07:41:33,216 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 520 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 4368 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 4461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 4368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:33,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 3191 Invalid, 4461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 4368 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:41:33,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11025 states. [2022-01-18 07:41:33,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11025 to 5972. [2022-01-18 07:41:33,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5972 states, 5971 states have (on average 3.4597219896164795) internal successors, (20658), 5971 states have internal predecessors, (20658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:33,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5972 states to 5972 states and 20658 transitions. [2022-01-18 07:41:33,333 INFO L78 Accepts]: Start accepts. Automaton has 5972 states and 20658 transitions. Word has length 39 [2022-01-18 07:41:33,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:33,333 INFO L470 AbstractCegarLoop]: Abstraction has 5972 states and 20658 transitions. [2022-01-18 07:41:33,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:33,333 INFO L276 IsEmpty]: Start isEmpty. Operand 5972 states and 20658 transitions. [2022-01-18 07:41:33,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:33,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:33,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:41:33,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-01-18 07:41:33,342 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:33,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:33,342 INFO L85 PathProgramCache]: Analyzing trace with hash 2114188486, now seen corresponding path program 130 times [2022-01-18 07:41:33,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:33,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435059570] [2022-01-18 07:41:33,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:33,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:33,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:33,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:33,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435059570] [2022-01-18 07:41:33,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435059570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:33,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:33,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:33,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543868230] [2022-01-18 07:41:33,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:33,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:33,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:33,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:33,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:33,547 INFO L87 Difference]: Start difference. First operand 5972 states and 20658 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:35,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:35,971 INFO L93 Difference]: Finished difference Result 9716 states and 33428 transitions. [2022-01-18 07:41:35,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-01-18 07:41:35,971 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:41:35,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:35,991 INFO L225 Difference]: With dead ends: 9716 [2022-01-18 07:41:35,991 INFO L226 Difference]: Without dead ends: 9649 [2022-01-18 07:41:35,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1989 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=553, Invalid=6089, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 07:41:35,992 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 481 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 3797 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 2750 SdHoareTripleChecker+Invalid, 3881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:35,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 2750 Invalid, 3881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3797 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:41:36,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-01-18 07:41:36,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 5956. [2022-01-18 07:41:36,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5956 states, 5955 states have (on average 3.4636439966414776) internal successors, (20626), 5955 states have internal predecessors, (20626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:36,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5956 states to 5956 states and 20626 transitions. [2022-01-18 07:41:36,091 INFO L78 Accepts]: Start accepts. Automaton has 5956 states and 20626 transitions. Word has length 39 [2022-01-18 07:41:36,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:36,092 INFO L470 AbstractCegarLoop]: Abstraction has 5956 states and 20626 transitions. [2022-01-18 07:41:36,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:36,092 INFO L276 IsEmpty]: Start isEmpty. Operand 5956 states and 20626 transitions. [2022-01-18 07:41:36,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:36,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:36,100 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] [2022-01-18 07:41:36,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-01-18 07:41:36,100 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:36,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:36,100 INFO L85 PathProgramCache]: Analyzing trace with hash -172981656, now seen corresponding path program 131 times [2022-01-18 07:41:36,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:36,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751052665] [2022-01-18 07:41:36,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:36,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:36,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:36,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:36,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751052665] [2022-01-18 07:41:36,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751052665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:36,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:36,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:36,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266329144] [2022-01-18 07:41:36,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:36,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:36,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:36,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:36,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:36,303 INFO L87 Difference]: Start difference. First operand 5956 states and 20626 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:38,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:38,810 INFO L93 Difference]: Finished difference Result 10007 states and 34455 transitions. [2022-01-18 07:41:38,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 07:41:38,810 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:41:38,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:38,829 INFO L225 Difference]: With dead ends: 10007 [2022-01-18 07:41:38,830 INFO L226 Difference]: Without dead ends: 9944 [2022-01-18 07:41:38,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1997 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=536, Invalid=6106, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 07:41:38,830 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 489 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 4107 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 4195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 4107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:38,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 3100 Invalid, 4195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 4107 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:41:38,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9944 states. [2022-01-18 07:41:38,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9944 to 5948. [2022-01-18 07:41:38,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5948 states, 5947 states have (on average 3.4649403060366573) internal successors, (20606), 5947 states have internal predecessors, (20606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:38,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5948 states to 5948 states and 20606 transitions. [2022-01-18 07:41:38,927 INFO L78 Accepts]: Start accepts. Automaton has 5948 states and 20606 transitions. Word has length 39 [2022-01-18 07:41:38,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:38,927 INFO L470 AbstractCegarLoop]: Abstraction has 5948 states and 20606 transitions. [2022-01-18 07:41:38,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:38,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5948 states and 20606 transitions. [2022-01-18 07:41:38,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:38,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:38,936 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] [2022-01-18 07:41:38,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-01-18 07:41:38,936 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:38,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:38,936 INFO L85 PathProgramCache]: Analyzing trace with hash -418473754, now seen corresponding path program 132 times [2022-01-18 07:41:38,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:38,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749002039] [2022-01-18 07:41:38,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:38,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:39,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:39,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749002039] [2022-01-18 07:41:39,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749002039] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:39,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:39,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:39,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671392754] [2022-01-18 07:41:39,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:39,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:39,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:39,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:39,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:39,150 INFO L87 Difference]: Start difference. First operand 5948 states and 20606 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:41,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:41,660 INFO L93 Difference]: Finished difference Result 10092 states and 34665 transitions. [2022-01-18 07:41:41,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 07:41:41,660 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 [2022-01-18 07:41:41,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:41,681 INFO L225 Difference]: With dead ends: 10092 [2022-01-18 07:41:41,682 INFO L226 Difference]: Without dead ends: 10017 [2022-01-18 07:41:41,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1997 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=536, Invalid=6106, Unknown=0, NotChecked=0, Total=6642 [2022-01-18 07:41:41,682 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 498 mSDsluCounter, 3425 mSDsCounter, 0 mSdLazyCounter, 4167 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 4254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:41,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 3125 Invalid, 4254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4167 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:41:41,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10017 states. [2022-01-18 07:41:41,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10017 to 5936. [2022-01-18 07:41:41,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5936 states, 5935 states have (on average 3.4668913226621734) internal successors, (20576), 5935 states have internal predecessors, (20576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:41,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5936 states to 5936 states and 20576 transitions. [2022-01-18 07:41:41,828 INFO L78 Accepts]: Start accepts. Automaton has 5936 states and 20576 transitions. Word has length 39 [2022-01-18 07:41:41,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:41,828 INFO L470 AbstractCegarLoop]: Abstraction has 5936 states and 20576 transitions. [2022-01-18 07:41:41,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:41,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5936 states and 20576 transitions. [2022-01-18 07:41:41,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:41,836 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:41,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:41:41,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-01-18 07:41:41,836 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:41,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:41,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1602178392, now seen corresponding path program 133 times [2022-01-18 07:41:41,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:41,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012725806] [2022-01-18 07:41:41,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:41,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:42,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:42,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:42,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012725806] [2022-01-18 07:41:42,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012725806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:42,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:42,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:42,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978794203] [2022-01-18 07:41:42,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:42,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:42,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:42,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:42,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:42,044 INFO L87 Difference]: Start difference. First operand 5936 states and 20576 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:44,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:44,684 INFO L93 Difference]: Finished difference Result 10741 states and 36799 transitions. [2022-01-18 07:41:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 07:41:44,684 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 [2022-01-18 07:41:44,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:44,705 INFO L225 Difference]: With dead ends: 10741 [2022-01-18 07:41:44,706 INFO L226 Difference]: Without dead ends: 10686 [2022-01-18 07:41:44,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2185 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=563, Invalid=6577, Unknown=0, NotChecked=0, Total=7140 [2022-01-18 07:41:44,707 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 532 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 4490 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 4581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 4490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:44,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [532 Valid, 3448 Invalid, 4581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 4490 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:41:44,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10686 states. [2022-01-18 07:41:44,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10686 to 5938. [2022-01-18 07:41:44,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5938 states, 5937 states have (on average 3.466565605524676) internal successors, (20581), 5937 states have internal predecessors, (20581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:44,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5938 states to 5938 states and 20581 transitions. [2022-01-18 07:41:44,812 INFO L78 Accepts]: Start accepts. Automaton has 5938 states and 20581 transitions. Word has length 39 [2022-01-18 07:41:44,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:44,812 INFO L470 AbstractCegarLoop]: Abstraction has 5938 states and 20581 transitions. [2022-01-18 07:41:44,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:44,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5938 states and 20581 transitions. [2022-01-18 07:41:44,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:44,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:44,821 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] [2022-01-18 07:41:44,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-01-18 07:41:44,821 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:44,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:44,821 INFO L85 PathProgramCache]: Analyzing trace with hash -265120378, now seen corresponding path program 134 times [2022-01-18 07:41:44,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:44,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295089026] [2022-01-18 07:41:44,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:44,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:45,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:45,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:45,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295089026] [2022-01-18 07:41:45,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295089026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:45,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:45,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:45,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221002707] [2022-01-18 07:41:45,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:45,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:45,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:45,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:45,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:45,031 INFO L87 Difference]: Start difference. First operand 5938 states and 20581 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:47,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:47,697 INFO L93 Difference]: Finished difference Result 10729 states and 36761 transitions. [2022-01-18 07:41:47,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 07:41:47,698 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 [2022-01-18 07:41:47,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:47,720 INFO L225 Difference]: With dead ends: 10729 [2022-01-18 07:41:47,720 INFO L226 Difference]: Without dead ends: 10656 [2022-01-18 07:41:47,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2185 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=563, Invalid=6577, Unknown=0, NotChecked=0, Total=7140 [2022-01-18 07:41:47,721 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 523 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 4490 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 3486 SdHoareTripleChecker+Invalid, 4581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 4490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:47,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 3486 Invalid, 4581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 4490 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:41:47,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10656 states. [2022-01-18 07:41:47,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10656 to 5932. [2022-01-18 07:41:47,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5932 states, 5931 states have (on average 3.4678806272129488) internal successors, (20568), 5931 states have internal predecessors, (20568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:47,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5932 states to 5932 states and 20568 transitions. [2022-01-18 07:41:47,836 INFO L78 Accepts]: Start accepts. Automaton has 5932 states and 20568 transitions. Word has length 39 [2022-01-18 07:41:47,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:47,836 INFO L470 AbstractCegarLoop]: Abstraction has 5932 states and 20568 transitions. [2022-01-18 07:41:47,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:47,837 INFO L276 IsEmpty]: Start isEmpty. Operand 5932 states and 20568 transitions. [2022-01-18 07:41:47,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:47,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:47,845 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] [2022-01-18 07:41:47,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-01-18 07:41:47,845 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:47,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:47,846 INFO L85 PathProgramCache]: Analyzing trace with hash -634695142, now seen corresponding path program 135 times [2022-01-18 07:41:47,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:47,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333096299] [2022-01-18 07:41:47,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:47,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:48,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:48,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:48,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333096299] [2022-01-18 07:41:48,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333096299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:48,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:48,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:48,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818504942] [2022-01-18 07:41:48,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:48,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:48,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:48,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:48,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:48,057 INFO L87 Difference]: Start difference. First operand 5932 states and 20568 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:51,593 INFO L93 Difference]: Finished difference Result 12644 states and 42987 transitions. [2022-01-18 07:41:51,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-01-18 07:41:51,594 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 [2022-01-18 07:41:51,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:51,625 INFO L225 Difference]: With dead ends: 12644 [2022-01-18 07:41:51,625 INFO L226 Difference]: Without dead ends: 12526 [2022-01-18 07:41:51,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4303 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=884, Invalid=11548, Unknown=0, NotChecked=0, Total=12432 [2022-01-18 07:41:51,626 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 629 mSDsluCounter, 3594 mSDsCounter, 0 mSdLazyCounter, 4653 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 4821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 4653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:51,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 3342 Invalid, 4821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 4653 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:41:51,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12526 states. [2022-01-18 07:41:51,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12526 to 6322. [2022-01-18 07:41:51,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6322 states, 6321 states have (on average 3.479829140958709) internal successors, (21996), 6321 states have internal predecessors, (21996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:51,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6322 states to 6322 states and 21996 transitions. [2022-01-18 07:41:51,779 INFO L78 Accepts]: Start accepts. Automaton has 6322 states and 21996 transitions. Word has length 39 [2022-01-18 07:41:51,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:51,779 INFO L470 AbstractCegarLoop]: Abstraction has 6322 states and 21996 transitions. [2022-01-18 07:41:51,779 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) [2022-01-18 07:41:51,780 INFO L276 IsEmpty]: Start isEmpty. Operand 6322 states and 21996 transitions. [2022-01-18 07:41:51,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:51,790 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:51,790 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] [2022-01-18 07:41:51,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-01-18 07:41:51,790 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:51,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:51,790 INFO L85 PathProgramCache]: Analyzing trace with hash 537957080, now seen corresponding path program 136 times [2022-01-18 07:41:51,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:51,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511416534] [2022-01-18 07:41:51,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:51,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:51,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:51,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:51,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511416534] [2022-01-18 07:41:51,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511416534] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:51,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:51,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:51,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423521009] [2022-01-18 07:41:51,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:51,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:51,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:51,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:51,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:51,997 INFO L87 Difference]: Start difference. First operand 6322 states and 21996 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:55,528 INFO L93 Difference]: Finished difference Result 13538 states and 45942 transitions. [2022-01-18 07:41:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-01-18 07:41:55,529 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:41:55,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:55,556 INFO L225 Difference]: With dead ends: 13538 [2022-01-18 07:41:55,557 INFO L226 Difference]: Without dead ends: 13420 [2022-01-18 07:41:55,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4487 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=915, Invalid=11967, Unknown=0, NotChecked=0, Total=12882 [2022-01-18 07:41:55,558 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 649 mSDsluCounter, 3868 mSDsCounter, 0 mSdLazyCounter, 4904 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 5075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 4904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:55,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 3615 Invalid, 5075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 4904 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 07:41:55,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13420 states. [2022-01-18 07:41:55,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13420 to 6375. [2022-01-18 07:41:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6375 states, 6374 states have (on average 3.479290869155946) internal successors, (22177), 6374 states have internal predecessors, (22177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:55,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6375 states to 6375 states and 22177 transitions. [2022-01-18 07:41:55,692 INFO L78 Accepts]: Start accepts. Automaton has 6375 states and 22177 transitions. Word has length 39 [2022-01-18 07:41:55,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:55,692 INFO L470 AbstractCegarLoop]: Abstraction has 6375 states and 22177 transitions. [2022-01-18 07:41:55,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:55,692 INFO L276 IsEmpty]: Start isEmpty. Operand 6375 states and 22177 transitions. [2022-01-18 07:41:55,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:55,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:55,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:41:55,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-01-18 07:41:55,702 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:55,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:55,702 INFO L85 PathProgramCache]: Analyzing trace with hash 470212200, now seen corresponding path program 137 times [2022-01-18 07:41:55,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:55,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293351648] [2022-01-18 07:41:55,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:55,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:55,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:55,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:55,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293351648] [2022-01-18 07:41:55,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293351648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:55,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:55,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:55,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317334845] [2022-01-18 07:41:55,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:55,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:55,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:55,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:55,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:55,904 INFO L87 Difference]: Start difference. First operand 6375 states and 22177 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:59,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:41:59,199 INFO L93 Difference]: Finished difference Result 12677 states and 43055 transitions. [2022-01-18 07:41:59,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-01-18 07:41:59,200 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:41:59,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:41:59,226 INFO L225 Difference]: With dead ends: 12677 [2022-01-18 07:41:59,227 INFO L226 Difference]: Without dead ends: 12612 [2022-01-18 07:41:59,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4304 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=873, Invalid=11559, Unknown=0, NotChecked=0, Total=12432 [2022-01-18 07:41:59,228 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 630 mSDsluCounter, 3658 mSDsCounter, 0 mSdLazyCounter, 4671 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 4833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 4671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:41:59,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 3367 Invalid, 4833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 4671 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:41:59,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12612 states. [2022-01-18 07:41:59,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12612 to 6376. [2022-01-18 07:41:59,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6376 states, 6375 states have (on average 3.478901960784314) internal successors, (22178), 6375 states have internal predecessors, (22178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:59,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6376 states to 6376 states and 22178 transitions. [2022-01-18 07:41:59,351 INFO L78 Accepts]: Start accepts. Automaton has 6376 states and 22178 transitions. Word has length 39 [2022-01-18 07:41:59,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:41:59,351 INFO L470 AbstractCegarLoop]: Abstraction has 6376 states and 22178 transitions. [2022-01-18 07:41:59,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:41:59,351 INFO L276 IsEmpty]: Start isEmpty. Operand 6376 states and 22178 transitions. [2022-01-18 07:41:59,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:41:59,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:41:59,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:41:59,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-01-18 07:41:59,360 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:41:59,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:41:59,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1457429558, now seen corresponding path program 138 times [2022-01-18 07:41:59,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:41:59,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818791149] [2022-01-18 07:41:59,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:41:59,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:41:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:41:59,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:41:59,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:41:59,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818791149] [2022-01-18 07:41:59,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818791149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:41:59,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:41:59,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:41:59,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817993086] [2022-01-18 07:41:59,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:41:59,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:41:59,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:41:59,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:41:59,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:41:59,567 INFO L87 Difference]: Start difference. First operand 6376 states and 22178 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:03,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:03,092 INFO L93 Difference]: Finished difference Result 13586 states and 46079 transitions. [2022-01-18 07:42:03,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-01-18 07:42:03,093 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:03,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:03,120 INFO L225 Difference]: With dead ends: 13586 [2022-01-18 07:42:03,120 INFO L226 Difference]: Without dead ends: 13436 [2022-01-18 07:42:03,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4393 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=894, Invalid=11762, Unknown=0, NotChecked=0, Total=12656 [2022-01-18 07:42:03,121 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 638 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 4973 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 3630 SdHoareTripleChecker+Invalid, 5136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 4973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:03,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [638 Valid, 3630 Invalid, 5136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 4973 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 07:42:03,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13436 states. [2022-01-18 07:42:03,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13436 to 6336. [2022-01-18 07:42:03,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6336 states, 6335 states have (on average 3.4820836621941593) internal successors, (22059), 6335 states have internal predecessors, (22059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:03,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6336 states to 6336 states and 22059 transitions. [2022-01-18 07:42:03,253 INFO L78 Accepts]: Start accepts. Automaton has 6336 states and 22059 transitions. Word has length 39 [2022-01-18 07:42:03,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:03,253 INFO L470 AbstractCegarLoop]: Abstraction has 6336 states and 22059 transitions. [2022-01-18 07:42:03,253 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) [2022-01-18 07:42:03,253 INFO L276 IsEmpty]: Start isEmpty. Operand 6336 states and 22059 transitions. [2022-01-18 07:42:03,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:03,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:03,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:03,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-01-18 07:42:03,263 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:03,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:03,263 INFO L85 PathProgramCache]: Analyzing trace with hash 609384356, now seen corresponding path program 139 times [2022-01-18 07:42:03,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:03,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496550547] [2022-01-18 07:42:03,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:03,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:03,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:03,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:03,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496550547] [2022-01-18 07:42:03,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496550547] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:03,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:03,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:03,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072529095] [2022-01-18 07:42:03,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:03,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:03,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:03,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:03,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:03,467 INFO L87 Difference]: Start difference. First operand 6336 states and 22059 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:07,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:07,594 INFO L93 Difference]: Finished difference Result 13288 states and 44858 transitions. [2022-01-18 07:42:07,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-01-18 07:42:07,595 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:07,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:07,620 INFO L225 Difference]: With dead ends: 13288 [2022-01-18 07:42:07,620 INFO L226 Difference]: Without dead ends: 13083 [2022-01-18 07:42:07,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5809 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1074, Invalid=14928, Unknown=0, NotChecked=0, Total=16002 [2022-01-18 07:42:07,622 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 675 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 5622 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 3934 SdHoareTripleChecker+Invalid, 5794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 5622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:07,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 3934 Invalid, 5794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 5622 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 07:42:07,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13083 states. [2022-01-18 07:42:07,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13083 to 6470. [2022-01-18 07:42:07,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6470 states, 6469 states have (on average 3.488019786674911) internal successors, (22564), 6469 states have internal predecessors, (22564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:07,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6470 states to 6470 states and 22564 transitions. [2022-01-18 07:42:07,748 INFO L78 Accepts]: Start accepts. Automaton has 6470 states and 22564 transitions. Word has length 39 [2022-01-18 07:42:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:07,749 INFO L470 AbstractCegarLoop]: Abstraction has 6470 states and 22564 transitions. [2022-01-18 07:42:07,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 6470 states and 22564 transitions. [2022-01-18 07:42:07,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:07,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:07,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:07,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-01-18 07:42:07,759 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:07,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:07,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1527867926, now seen corresponding path program 140 times [2022-01-18 07:42:07,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:07,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261853907] [2022-01-18 07:42:07,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:07,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:07,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:07,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261853907] [2022-01-18 07:42:07,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261853907] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:07,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:07,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:07,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919875378] [2022-01-18 07:42:07,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:07,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:07,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:07,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:07,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:07,958 INFO L87 Difference]: Start difference. First operand 6470 states and 22564 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:10,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:10,571 INFO L93 Difference]: Finished difference Result 11615 states and 39719 transitions. [2022-01-18 07:42:10,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 07:42:10,571 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 [2022-01-18 07:42:10,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:10,594 INFO L225 Difference]: With dead ends: 11615 [2022-01-18 07:42:10,594 INFO L226 Difference]: Without dead ends: 11572 [2022-01-18 07:42:10,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2131 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=534, Invalid=6438, Unknown=0, NotChecked=0, Total=6972 [2022-01-18 07:42:10,595 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 564 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 4534 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 4642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 4534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:10,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [564 Valid, 3225 Invalid, 4642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 4534 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:42:10,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11572 states. [2022-01-18 07:42:10,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11572 to 6482. [2022-01-18 07:42:10,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6482 states, 6481 states have (on average 3.486344699891992) internal successors, (22595), 6481 states have internal predecessors, (22595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6482 states to 6482 states and 22595 transitions. [2022-01-18 07:42:10,710 INFO L78 Accepts]: Start accepts. Automaton has 6482 states and 22595 transitions. Word has length 39 [2022-01-18 07:42:10,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:10,711 INFO L470 AbstractCegarLoop]: Abstraction has 6482 states and 22595 transitions. [2022-01-18 07:42:10,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:10,711 INFO L276 IsEmpty]: Start isEmpty. Operand 6482 states and 22595 transitions. [2022-01-18 07:42:10,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:10,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:10,720 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] [2022-01-18 07:42:10,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-01-18 07:42:10,720 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:10,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:10,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1548016660, now seen corresponding path program 141 times [2022-01-18 07:42:10,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:10,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377457324] [2022-01-18 07:42:10,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:10,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:10,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:10,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377457324] [2022-01-18 07:42:10,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377457324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:10,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:10,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:10,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886088594] [2022-01-18 07:42:10,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:10,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:10,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:10,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:10,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:10,920 INFO L87 Difference]: Start difference. First operand 6482 states and 22595 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:13,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:13,253 INFO L93 Difference]: Finished difference Result 10838 states and 37200 transitions. [2022-01-18 07:42:13,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-01-18 07:42:13,253 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 [2022-01-18 07:42:13,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:13,278 INFO L225 Difference]: With dead ends: 10838 [2022-01-18 07:42:13,278 INFO L226 Difference]: Without dead ends: 10795 [2022-01-18 07:42:13,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1815 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=490, Invalid=5672, Unknown=0, NotChecked=0, Total=6162 [2022-01-18 07:42:13,279 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 551 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 3995 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 4101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:13,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 2825 Invalid, 4101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3995 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 07:42:13,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10795 states. [2022-01-18 07:42:13,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10795 to 6478. [2022-01-18 07:42:13,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6478 states, 6477 states have (on average 3.4869538366527713) internal successors, (22585), 6477 states have internal predecessors, (22585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6478 states to 6478 states and 22585 transitions. [2022-01-18 07:42:13,422 INFO L78 Accepts]: Start accepts. Automaton has 6478 states and 22585 transitions. Word has length 39 [2022-01-18 07:42:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:13,422 INFO L470 AbstractCegarLoop]: Abstraction has 6478 states and 22585 transitions. [2022-01-18 07:42:13,422 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) [2022-01-18 07:42:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 6478 states and 22585 transitions. [2022-01-18 07:42:13,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:13,432 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:13,432 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] [2022-01-18 07:42:13,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-01-18 07:42:13,432 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:13,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:13,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1594447148, now seen corresponding path program 142 times [2022-01-18 07:42:13,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:13,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085257569] [2022-01-18 07:42:13,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:13,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:13,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:13,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:13,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085257569] [2022-01-18 07:42:13,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085257569] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:13,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:13,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:13,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584677345] [2022-01-18 07:42:13,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:13,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:13,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:13,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:13,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:13,648 INFO L87 Difference]: Start difference. First operand 6478 states and 22585 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:16,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:16,726 INFO L93 Difference]: Finished difference Result 12609 states and 42778 transitions. [2022-01-18 07:42:16,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-01-18 07:42:16,727 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:16,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:16,759 INFO L225 Difference]: With dead ends: 12609 [2022-01-18 07:42:16,759 INFO L226 Difference]: Without dead ends: 12428 [2022-01-18 07:42:16,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2957 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=692, Invalid=8428, Unknown=0, NotChecked=0, Total=9120 [2022-01-18 07:42:16,761 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 582 mSDsluCounter, 3803 mSDsCounter, 0 mSdLazyCounter, 4879 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 5011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 4879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:16,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 3544 Invalid, 5011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 4879 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:42:16,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12428 states. [2022-01-18 07:42:16,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12428 to 6615. [2022-01-18 07:42:16,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6615 states, 6614 states have (on average 3.487753250680375) internal successors, (23068), 6614 states have internal predecessors, (23068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:16,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6615 states to 6615 states and 23068 transitions. [2022-01-18 07:42:16,947 INFO L78 Accepts]: Start accepts. Automaton has 6615 states and 23068 transitions. Word has length 39 [2022-01-18 07:42:16,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:16,947 INFO L470 AbstractCegarLoop]: Abstraction has 6615 states and 23068 transitions. [2022-01-18 07:42:16,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:16,947 INFO L276 IsEmpty]: Start isEmpty. Operand 6615 states and 23068 transitions. [2022-01-18 07:42:16,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:16,958 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:16,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:16,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-01-18 07:42:16,958 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:16,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:16,959 INFO L85 PathProgramCache]: Analyzing trace with hash 620953606, now seen corresponding path program 143 times [2022-01-18 07:42:16,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:16,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046912425] [2022-01-18 07:42:16,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:16,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:17,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:17,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046912425] [2022-01-18 07:42:17,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046912425] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:17,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:17,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:42:17,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606264210] [2022-01-18 07:42:17,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:17,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:42:17,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:17,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:42:17,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:42:17,167 INFO L87 Difference]: Start difference. First operand 6615 states and 23068 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:19,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:19,892 INFO L93 Difference]: Finished difference Result 12388 states and 42188 transitions. [2022-01-18 07:42:19,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-01-18 07:42:19,893 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:19,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:19,919 INFO L225 Difference]: With dead ends: 12388 [2022-01-18 07:42:19,920 INFO L226 Difference]: Without dead ends: 12312 [2022-01-18 07:42:19,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2388 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=593, Invalid=6889, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 07:42:19,921 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 542 mSDsluCounter, 3296 mSDsCounter, 0 mSdLazyCounter, 4358 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 4467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 4358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:19,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [542 Valid, 3114 Invalid, 4467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 4358 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:42:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12312 states. [2022-01-18 07:42:20,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12312 to 6623. [2022-01-18 07:42:20,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6623 states, 6622 states have (on average 3.485955904560556) internal successors, (23084), 6622 states have internal predecessors, (23084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:20,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6623 states to 6623 states and 23084 transitions. [2022-01-18 07:42:20,053 INFO L78 Accepts]: Start accepts. Automaton has 6623 states and 23084 transitions. Word has length 39 [2022-01-18 07:42:20,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:20,053 INFO L470 AbstractCegarLoop]: Abstraction has 6623 states and 23084 transitions. [2022-01-18 07:42:20,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:20,054 INFO L276 IsEmpty]: Start isEmpty. Operand 6623 states and 23084 transitions. [2022-01-18 07:42:20,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:20,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:20,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:20,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-01-18 07:42:20,063 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:20,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:20,064 INFO L85 PathProgramCache]: Analyzing trace with hash -397100006, now seen corresponding path program 144 times [2022-01-18 07:42:20,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:20,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475684055] [2022-01-18 07:42:20,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:20,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:20,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:20,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:20,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475684055] [2022-01-18 07:42:20,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475684055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:20,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:20,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:20,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872900632] [2022-01-18 07:42:20,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:20,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:20,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:20,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:20,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:20,267 INFO L87 Difference]: Start difference. First operand 6623 states and 23084 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:23,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:23,236 INFO L93 Difference]: Finished difference Result 12474 states and 42434 transitions. [2022-01-18 07:42:23,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-01-18 07:42:23,236 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 [2022-01-18 07:42:23,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:23,261 INFO L225 Difference]: With dead ends: 12474 [2022-01-18 07:42:23,262 INFO L226 Difference]: Without dead ends: 12404 [2022-01-18 07:42:23,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2812 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=667, Invalid=8075, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 07:42:23,263 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 568 mSDsluCounter, 3713 mSDsCounter, 0 mSdLazyCounter, 4801 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 4931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 4801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:23,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [568 Valid, 3484 Invalid, 4931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 4801 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:42:23,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12404 states. [2022-01-18 07:42:23,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12404 to 6611. [2022-01-18 07:42:23,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6611 states, 6610 states have (on average 3.4877458396369136) internal successors, (23054), 6610 states have internal predecessors, (23054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 23054 transitions. [2022-01-18 07:42:23,389 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 23054 transitions. Word has length 39 [2022-01-18 07:42:23,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:23,389 INFO L470 AbstractCegarLoop]: Abstraction has 6611 states and 23054 transitions. [2022-01-18 07:42:23,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:23,389 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 23054 transitions. [2022-01-18 07:42:23,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:23,398 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:23,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:23,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-01-18 07:42:23,399 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:23,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:23,399 INFO L85 PathProgramCache]: Analyzing trace with hash 79287864, now seen corresponding path program 145 times [2022-01-18 07:42:23,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:23,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900975723] [2022-01-18 07:42:23,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:23,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:23,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:23,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:23,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900975723] [2022-01-18 07:42:23,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900975723] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:23,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:23,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:23,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131295420] [2022-01-18 07:42:23,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:23,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:23,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:23,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:23,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:23,599 INFO L87 Difference]: Start difference. First operand 6611 states and 23054 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:27,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:27,663 INFO L93 Difference]: Finished difference Result 13395 states and 45264 transitions. [2022-01-18 07:42:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-01-18 07:42:27,663 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 [2022-01-18 07:42:27,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:27,691 INFO L225 Difference]: With dead ends: 13395 [2022-01-18 07:42:27,691 INFO L226 Difference]: Without dead ends: 13235 [2022-01-18 07:42:27,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5698 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1045, Invalid=14705, Unknown=0, NotChecked=0, Total=15750 [2022-01-18 07:42:27,693 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 683 mSDsluCounter, 4228 mSDsCounter, 0 mSdLazyCounter, 5679 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 3979 SdHoareTripleChecker+Invalid, 5849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 5679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:27,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [683 Valid, 3979 Invalid, 5849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 5679 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 07:42:27,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13235 states. [2022-01-18 07:42:27,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13235 to 6612. [2022-01-18 07:42:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6612 states, 6611 states have (on average 3.4881258508546362) internal successors, (23060), 6611 states have internal predecessors, (23060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:27,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6612 states to 6612 states and 23060 transitions. [2022-01-18 07:42:27,825 INFO L78 Accepts]: Start accepts. Automaton has 6612 states and 23060 transitions. Word has length 39 [2022-01-18 07:42:27,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:27,825 INFO L470 AbstractCegarLoop]: Abstraction has 6612 states and 23060 transitions. [2022-01-18 07:42:27,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:27,825 INFO L276 IsEmpty]: Start isEmpty. Operand 6612 states and 23060 transitions. [2022-01-18 07:42:27,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:27,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:27,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:27,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-01-18 07:42:27,835 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:27,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:27,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1458131366, now seen corresponding path program 146 times [2022-01-18 07:42:27,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:27,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713723761] [2022-01-18 07:42:27,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:27,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:28,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:28,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713723761] [2022-01-18 07:42:28,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713723761] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:28,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:28,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:28,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756463943] [2022-01-18 07:42:28,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:28,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:28,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:28,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:28,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:28,033 INFO L87 Difference]: Start difference. First operand 6612 states and 23060 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:30,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:30,611 INFO L93 Difference]: Finished difference Result 11771 states and 40218 transitions. [2022-01-18 07:42:30,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-18 07:42:30,611 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:30,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:30,636 INFO L225 Difference]: With dead ends: 11771 [2022-01-18 07:42:30,636 INFO L226 Difference]: Without dead ends: 11728 [2022-01-18 07:42:30,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2134 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=518, Invalid=6454, Unknown=0, NotChecked=0, Total=6972 [2022-01-18 07:42:30,637 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 560 mSDsluCounter, 3616 mSDsCounter, 0 mSdLazyCounter, 4596 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 4697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 4596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:30,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 3280 Invalid, 4697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 4596 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:42:30,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11728 states. [2022-01-18 07:42:30,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11728 to 6627. [2022-01-18 07:42:30,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6627 states, 6626 states have (on average 3.4858134621189256) internal successors, (23097), 6626 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:30,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6627 states to 6627 states and 23097 transitions. [2022-01-18 07:42:30,764 INFO L78 Accepts]: Start accepts. Automaton has 6627 states and 23097 transitions. Word has length 39 [2022-01-18 07:42:30,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:30,764 INFO L470 AbstractCegarLoop]: Abstraction has 6627 states and 23097 transitions. [2022-01-18 07:42:30,764 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) [2022-01-18 07:42:30,764 INFO L276 IsEmpty]: Start isEmpty. Operand 6627 states and 23097 transitions. [2022-01-18 07:42:30,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:30,774 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:30,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:30,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-01-18 07:42:30,774 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:30,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:30,774 INFO L85 PathProgramCache]: Analyzing trace with hash 291975770, now seen corresponding path program 147 times [2022-01-18 07:42:30,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:30,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352724118] [2022-01-18 07:42:30,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:30,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:30,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:30,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:30,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352724118] [2022-01-18 07:42:30,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352724118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:30,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:30,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:30,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996662346] [2022-01-18 07:42:30,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:30,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:30,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:30,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:30,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:30,979 INFO L87 Difference]: Start difference. First operand 6627 states and 23097 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:33,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:33,385 INFO L93 Difference]: Finished difference Result 10795 states and 37107 transitions. [2022-01-18 07:42:33,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-01-18 07:42:33,385 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:33,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:33,407 INFO L225 Difference]: With dead ends: 10795 [2022-01-18 07:42:33,407 INFO L226 Difference]: Without dead ends: 10683 [2022-01-18 07:42:33,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1756 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=464, Invalid=5542, Unknown=0, NotChecked=0, Total=6006 [2022-01-18 07:42:33,408 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 529 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 4097 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 4195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:33,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 2948 Invalid, 4195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4097 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:42:33,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-01-18 07:42:33,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 6624. [2022-01-18 07:42:33,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6624 states, 6623 states have (on average 3.486637475464291) internal successors, (23092), 6623 states have internal predecessors, (23092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:33,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6624 states to 6624 states and 23092 transitions. [2022-01-18 07:42:33,521 INFO L78 Accepts]: Start accepts. Automaton has 6624 states and 23092 transitions. Word has length 39 [2022-01-18 07:42:33,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:33,522 INFO L470 AbstractCegarLoop]: Abstraction has 6624 states and 23092 transitions. [2022-01-18 07:42:33,522 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) [2022-01-18 07:42:33,522 INFO L276 IsEmpty]: Start isEmpty. Operand 6624 states and 23092 transitions. [2022-01-18 07:42:33,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:33,532 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:33,532 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] [2022-01-18 07:42:33,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-01-18 07:42:33,532 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:33,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:33,532 INFO L85 PathProgramCache]: Analyzing trace with hash 909194172, now seen corresponding path program 148 times [2022-01-18 07:42:33,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:33,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551879120] [2022-01-18 07:42:33,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:33,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:33,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:33,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551879120] [2022-01-18 07:42:33,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551879120] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:33,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:33,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:33,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468833567] [2022-01-18 07:42:33,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:33,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:33,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:33,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:33,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:33,738 INFO L87 Difference]: Start difference. First operand 6624 states and 23092 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:36,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:36,832 INFO L93 Difference]: Finished difference Result 12608 states and 42790 transitions. [2022-01-18 07:42:36,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-18 07:42:36,833 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:36,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:36,856 INFO L225 Difference]: With dead ends: 12608 [2022-01-18 07:42:36,857 INFO L226 Difference]: Without dead ends: 12451 [2022-01-18 07:42:36,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3039 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=680, Invalid=8632, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 07:42:36,857 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 591 mSDsluCounter, 3908 mSDsCounter, 0 mSdLazyCounter, 5034 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 5155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 5034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:36,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [591 Valid, 3602 Invalid, 5155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 5034 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:42:36,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12451 states. [2022-01-18 07:42:36,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12451 to 6521. [2022-01-18 07:42:36,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6521 states, 6520 states have (on average 3.488036809815951) internal successors, (22742), 6520 states have internal predecessors, (22742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:36,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 22742 transitions. [2022-01-18 07:42:36,985 INFO L78 Accepts]: Start accepts. Automaton has 6521 states and 22742 transitions. Word has length 39 [2022-01-18 07:42:36,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:36,985 INFO L470 AbstractCegarLoop]: Abstraction has 6521 states and 22742 transitions. [2022-01-18 07:42:36,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:36,985 INFO L276 IsEmpty]: Start isEmpty. Operand 6521 states and 22742 transitions. [2022-01-18 07:42:36,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:36,995 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:36,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:36,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-01-18 07:42:36,995 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:36,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:36,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1106490028, now seen corresponding path program 149 times [2022-01-18 07:42:36,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:36,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26643451] [2022-01-18 07:42:36,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:36,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:37,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:37,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:37,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26643451] [2022-01-18 07:42:37,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26643451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:37,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:37,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:42:37,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682838081] [2022-01-18 07:42:37,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:37,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:42:37,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:37,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:42:37,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:42:37,185 INFO L87 Difference]: Start difference. First operand 6521 states and 22742 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:39,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:39,837 INFO L93 Difference]: Finished difference Result 12209 states and 41733 transitions. [2022-01-18 07:42:39,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-01-18 07:42:39,837 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:39,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:39,893 INFO L225 Difference]: With dead ends: 12209 [2022-01-18 07:42:39,894 INFO L226 Difference]: Without dead ends: 12133 [2022-01-18 07:42:39,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2388 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=590, Invalid=6892, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 07:42:39,894 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 538 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 4381 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 4485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 4381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:39,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [538 Valid, 3130 Invalid, 4485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 4381 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:42:39,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12133 states. [2022-01-18 07:42:39,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12133 to 6535. [2022-01-18 07:42:40,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6535 states, 6534 states have (on average 3.485154576063667) internal successors, (22772), 6534 states have internal predecessors, (22772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:40,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6535 states to 6535 states and 22772 transitions. [2022-01-18 07:42:40,015 INFO L78 Accepts]: Start accepts. Automaton has 6535 states and 22772 transitions. Word has length 39 [2022-01-18 07:42:40,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:40,015 INFO L470 AbstractCegarLoop]: Abstraction has 6535 states and 22772 transitions. [2022-01-18 07:42:40,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand 6535 states and 22772 transitions. [2022-01-18 07:42:40,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:40,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:40,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:40,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-01-18 07:42:40,027 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:40,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:40,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1640554934, now seen corresponding path program 150 times [2022-01-18 07:42:40,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:40,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663512183] [2022-01-18 07:42:40,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:40,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:40,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:40,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:40,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663512183] [2022-01-18 07:42:40,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663512183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:40,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:40,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:40,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888482166] [2022-01-18 07:42:40,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:40,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:40,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:40,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:40,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:40,232 INFO L87 Difference]: Start difference. First operand 6535 states and 22772 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:43,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:43,182 INFO L93 Difference]: Finished difference Result 12365 states and 42153 transitions. [2022-01-18 07:42:43,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-01-18 07:42:43,182 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:43,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:43,207 INFO L225 Difference]: With dead ends: 12365 [2022-01-18 07:42:43,207 INFO L226 Difference]: Without dead ends: 12274 [2022-01-18 07:42:43,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2736 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=645, Invalid=7911, Unknown=0, NotChecked=0, Total=8556 [2022-01-18 07:42:43,209 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 569 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 4927 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 3509 SdHoareTripleChecker+Invalid, 5045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 4927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:43,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [569 Valid, 3509 Invalid, 5045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 4927 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:42:43,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12274 states. [2022-01-18 07:42:43,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12274 to 6511. [2022-01-18 07:42:43,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6511 states, 6510 states have (on average 3.489554531490015) internal successors, (22717), 6510 states have internal predecessors, (22717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:43,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6511 states to 6511 states and 22717 transitions. [2022-01-18 07:42:43,364 INFO L78 Accepts]: Start accepts. Automaton has 6511 states and 22717 transitions. Word has length 39 [2022-01-18 07:42:43,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:43,364 INFO L470 AbstractCegarLoop]: Abstraction has 6511 states and 22717 transitions. [2022-01-18 07:42:43,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:43,364 INFO L276 IsEmpty]: Start isEmpty. Operand 6511 states and 22717 transitions. [2022-01-18 07:42:43,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:43,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:43,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:43,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-01-18 07:42:43,374 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:43,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:43,374 INFO L85 PathProgramCache]: Analyzing trace with hash -339149448, now seen corresponding path program 151 times [2022-01-18 07:42:43,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:43,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661813685] [2022-01-18 07:42:43,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:43,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:43,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:43,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:43,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661813685] [2022-01-18 07:42:43,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661813685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:43,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:43,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:43,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573828259] [2022-01-18 07:42:43,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:43,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:43,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:43,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:43,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:43,575 INFO L87 Difference]: Start difference. First operand 6511 states and 22717 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:46,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:46,977 INFO L93 Difference]: Finished difference Result 13797 states and 46865 transitions. [2022-01-18 07:42:46,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-01-18 07:42:46,978 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:46,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:47,009 INFO L225 Difference]: With dead ends: 13797 [2022-01-18 07:42:47,009 INFO L226 Difference]: Without dead ends: 13624 [2022-01-18 07:42:47,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3858 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=808, Invalid=10534, Unknown=0, NotChecked=0, Total=11342 [2022-01-18 07:42:47,011 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 647 mSDsluCounter, 3960 mSDsCounter, 0 mSdLazyCounter, 5256 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 5426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 5256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:47,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 3671 Invalid, 5426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 5256 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 07:42:47,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13624 states. [2022-01-18 07:42:47,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13624 to 6571. [2022-01-18 07:42:47,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6571 states, 6570 states have (on average 3.4881278538812786) internal successors, (22917), 6570 states have internal predecessors, (22917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:47,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6571 states to 6571 states and 22917 transitions. [2022-01-18 07:42:47,194 INFO L78 Accepts]: Start accepts. Automaton has 6571 states and 22917 transitions. Word has length 39 [2022-01-18 07:42:47,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:47,194 INFO L470 AbstractCegarLoop]: Abstraction has 6571 states and 22917 transitions. [2022-01-18 07:42:47,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:47,194 INFO L276 IsEmpty]: Start isEmpty. Operand 6571 states and 22917 transitions. [2022-01-18 07:42:47,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:47,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:47,205 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] [2022-01-18 07:42:47,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-01-18 07:42:47,205 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:47,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:47,205 INFO L85 PathProgramCache]: Analyzing trace with hash 833502774, now seen corresponding path program 152 times [2022-01-18 07:42:47,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:47,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238399020] [2022-01-18 07:42:47,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:47,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:47,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:47,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:47,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238399020] [2022-01-18 07:42:47,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238399020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:47,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:47,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:47,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578577828] [2022-01-18 07:42:47,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:47,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:47,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:47,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:47,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:47,420 INFO L87 Difference]: Start difference. First operand 6571 states and 22917 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:51,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:51,058 INFO L93 Difference]: Finished difference Result 14359 states and 48671 transitions. [2022-01-18 07:42:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-01-18 07:42:51,058 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:51,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:51,088 INFO L225 Difference]: With dead ends: 14359 [2022-01-18 07:42:51,088 INFO L226 Difference]: Without dead ends: 14178 [2022-01-18 07:42:51,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4390 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=900, Invalid=11756, Unknown=0, NotChecked=0, Total=12656 [2022-01-18 07:42:51,090 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 670 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 5249 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 5423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 5249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:51,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 3795 Invalid, 5423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 5249 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 07:42:51,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14178 states. [2022-01-18 07:42:51,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14178 to 6676. [2022-01-18 07:42:51,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6676 states, 6675 states have (on average 3.4885393258426967) internal successors, (23286), 6675 states have internal predecessors, (23286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:51,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6676 states to 6676 states and 23286 transitions. [2022-01-18 07:42:51,253 INFO L78 Accepts]: Start accepts. Automaton has 6676 states and 23286 transitions. Word has length 39 [2022-01-18 07:42:51,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:51,253 INFO L470 AbstractCegarLoop]: Abstraction has 6676 states and 23286 transitions. [2022-01-18 07:42:51,253 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) [2022-01-18 07:42:51,253 INFO L276 IsEmpty]: Start isEmpty. Operand 6676 states and 23286 transitions. [2022-01-18 07:42:51,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:51,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:51,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:51,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-01-18 07:42:51,263 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:51,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:51,264 INFO L85 PathProgramCache]: Analyzing trace with hash 765757894, now seen corresponding path program 153 times [2022-01-18 07:42:51,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:51,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872541949] [2022-01-18 07:42:51,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:51,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:51,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:51,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:51,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872541949] [2022-01-18 07:42:51,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872541949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:51,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:51,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:51,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106515805] [2022-01-18 07:42:51,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:51,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:51,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:51,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:51,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:51,467 INFO L87 Difference]: Start difference. First operand 6676 states and 23286 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:54,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:54,787 INFO L93 Difference]: Finished difference Result 13824 states and 46990 transitions. [2022-01-18 07:42:54,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-01-18 07:42:54,787 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:54,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:54,817 INFO L225 Difference]: With dead ends: 13824 [2022-01-18 07:42:54,818 INFO L226 Difference]: Without dead ends: 13690 [2022-01-18 07:42:54,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3775 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=786, Invalid=10344, Unknown=0, NotChecked=0, Total=11130 [2022-01-18 07:42:54,819 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 645 mSDsluCounter, 3986 mSDsCounter, 0 mSdLazyCounter, 5211 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 3690 SdHoareTripleChecker+Invalid, 5372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 5211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:54,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 3690 Invalid, 5372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 5211 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 07:42:54,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13690 states. [2022-01-18 07:42:55,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13690 to 6675. [2022-01-18 07:42:55,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6675 states, 6674 states have (on average 3.488163020677255) internal successors, (23280), 6674 states have internal predecessors, (23280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:55,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 23280 transitions. [2022-01-18 07:42:55,037 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 23280 transitions. Word has length 39 [2022-01-18 07:42:55,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:55,037 INFO L470 AbstractCegarLoop]: Abstraction has 6675 states and 23280 transitions. [2022-01-18 07:42:55,037 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) [2022-01-18 07:42:55,037 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 23280 transitions. [2022-01-18 07:42:55,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:55,051 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:55,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:55,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-01-18 07:42:55,052 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:55,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:55,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1161883864, now seen corresponding path program 154 times [2022-01-18 07:42:55,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:55,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728736379] [2022-01-18 07:42:55,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:55,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:55,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:55,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728736379] [2022-01-18 07:42:55,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728736379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:55,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:55,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:55,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475058578] [2022-01-18 07:42:55,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:55,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:55,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:55,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:55,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:55,268 INFO L87 Difference]: Start difference. First operand 6675 states and 23280 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:58,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:42:58,871 INFO L93 Difference]: Finished difference Result 14374 states and 48713 transitions. [2022-01-18 07:42:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-01-18 07:42:58,871 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:42:58,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:42:58,903 INFO L225 Difference]: With dead ends: 14374 [2022-01-18 07:42:58,903 INFO L226 Difference]: Without dead ends: 14206 [2022-01-18 07:42:58,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4398 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=882, Invalid=11774, Unknown=0, NotChecked=0, Total=12656 [2022-01-18 07:42:58,905 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 672 mSDsluCounter, 4095 mSDsCounter, 0 mSdLazyCounter, 5353 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 5521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 5353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:42:58,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [672 Valid, 3817 Invalid, 5521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 5353 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 07:42:58,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14206 states. [2022-01-18 07:42:59,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14206 to 6559. [2022-01-18 07:42:59,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6559 states, 6558 states have (on average 3.489021043000915) internal successors, (22881), 6558 states have internal predecessors, (22881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:59,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6559 states to 6559 states and 22881 transitions. [2022-01-18 07:42:59,092 INFO L78 Accepts]: Start accepts. Automaton has 6559 states and 22881 transitions. Word has length 39 [2022-01-18 07:42:59,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:42:59,092 INFO L470 AbstractCegarLoop]: Abstraction has 6559 states and 22881 transitions. [2022-01-18 07:42:59,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:42:59,092 INFO L276 IsEmpty]: Start isEmpty. Operand 6559 states and 22881 transitions. [2022-01-18 07:42:59,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:42:59,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:42:59,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:42:59,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-01-18 07:42:59,103 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:42:59,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:42:59,104 INFO L85 PathProgramCache]: Analyzing trace with hash -158126948, now seen corresponding path program 155 times [2022-01-18 07:42:59,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:42:59,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433172769] [2022-01-18 07:42:59,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:42:59,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:42:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:42:59,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:42:59,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:42:59,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433172769] [2022-01-18 07:42:59,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433172769] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:42:59,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:42:59,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:42:59,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787886808] [2022-01-18 07:42:59,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:42:59,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:42:59,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:42:59,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:42:59,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:42:59,310 INFO L87 Difference]: Start difference. First operand 6559 states and 22881 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:00,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:00,722 INFO L93 Difference]: Finished difference Result 9304 states and 32116 transitions. [2022-01-18 07:43:00,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:43:00,722 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:00,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:00,740 INFO L225 Difference]: With dead ends: 9304 [2022-01-18 07:43:00,740 INFO L226 Difference]: Without dead ends: 9237 [2022-01-18 07:43:00,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=270, Invalid=2592, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:43:00,741 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 450 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 2758 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:00,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [450 Valid, 2088 Invalid, 2814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2758 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:00,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9237 states. [2022-01-18 07:43:00,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9237 to 6779. [2022-01-18 07:43:00,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6779 states, 6778 states have (on average 3.487606963706108) internal successors, (23639), 6778 states have internal predecessors, (23639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:00,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6779 states to 6779 states and 23639 transitions. [2022-01-18 07:43:00,852 INFO L78 Accepts]: Start accepts. Automaton has 6779 states and 23639 transitions. Word has length 39 [2022-01-18 07:43:00,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:00,852 INFO L470 AbstractCegarLoop]: Abstraction has 6779 states and 23639 transitions. [2022-01-18 07:43:00,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:00,852 INFO L276 IsEmpty]: Start isEmpty. Operand 6779 states and 23639 transitions. [2022-01-18 07:43:00,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:00,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:00,863 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] [2022-01-18 07:43:00,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-01-18 07:43:00,863 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:00,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:00,863 INFO L85 PathProgramCache]: Analyzing trace with hash -288721796, now seen corresponding path program 156 times [2022-01-18 07:43:00,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:00,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892074277] [2022-01-18 07:43:00,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:00,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:01,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:01,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:01,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892074277] [2022-01-18 07:43:01,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892074277] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:01,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:01,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:01,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113262228] [2022-01-18 07:43:01,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:01,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:01,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:01,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:01,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:01,081 INFO L87 Difference]: Start difference. First operand 6779 states and 23639 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:02,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:02,527 INFO L93 Difference]: Finished difference Result 9244 states and 31928 transitions. [2022-01-18 07:43:02,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:43:02,528 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:02,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:02,548 INFO L225 Difference]: With dead ends: 9244 [2022-01-18 07:43:02,548 INFO L226 Difference]: Without dead ends: 9181 [2022-01-18 07:43:02,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=2485, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 07:43:02,549 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 419 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 2603 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:02,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 1947 Invalid, 2660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2603 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:02,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9181 states. [2022-01-18 07:43:02,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9181 to 6771. [2022-01-18 07:43:02,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6771 states, 6770 states have (on average 3.4881831610044314) internal successors, (23615), 6770 states have internal predecessors, (23615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6771 states to 6771 states and 23615 transitions. [2022-01-18 07:43:02,709 INFO L78 Accepts]: Start accepts. Automaton has 6771 states and 23615 transitions. Word has length 39 [2022-01-18 07:43:02,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:02,709 INFO L470 AbstractCegarLoop]: Abstraction has 6771 states and 23615 transitions. [2022-01-18 07:43:02,710 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) [2022-01-18 07:43:02,710 INFO L276 IsEmpty]: Start isEmpty. Operand 6771 states and 23615 transitions. [2022-01-18 07:43:02,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:02,720 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:02,720 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] [2022-01-18 07:43:02,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-01-18 07:43:02,720 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:02,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:02,720 INFO L85 PathProgramCache]: Analyzing trace with hash -424400388, now seen corresponding path program 157 times [2022-01-18 07:43:02,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:02,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243963241] [2022-01-18 07:43:02,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:02,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:02,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:02,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:02,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243963241] [2022-01-18 07:43:02,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243963241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:02,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:02,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:02,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043063646] [2022-01-18 07:43:02,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:02,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:02,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:02,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:02,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:02,925 INFO L87 Difference]: Start difference. First operand 6771 states and 23615 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:04,971 INFO L93 Difference]: Finished difference Result 10467 states and 36092 transitions. [2022-01-18 07:43:04,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-18 07:43:04,971 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:04,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:04,993 INFO L225 Difference]: With dead ends: 10467 [2022-01-18 07:43:04,993 INFO L226 Difference]: Without dead ends: 10424 [2022-01-18 07:43:04,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1766 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=482, Invalid=5524, Unknown=0, NotChecked=0, Total=6006 [2022-01-18 07:43:04,994 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 575 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 3100 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 3222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 3100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:04,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [575 Valid, 2239 Invalid, 3222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 3100 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:43:05,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10424 states. [2022-01-18 07:43:05,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10424 to 6983. [2022-01-18 07:43:05,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6983 states, 6982 states have (on average 3.4925522772844455) internal successors, (24385), 6982 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:05,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6983 states to 6983 states and 24385 transitions. [2022-01-18 07:43:05,111 INFO L78 Accepts]: Start accepts. Automaton has 6983 states and 24385 transitions. Word has length 39 [2022-01-18 07:43:05,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:05,112 INFO L470 AbstractCegarLoop]: Abstraction has 6983 states and 24385 transitions. [2022-01-18 07:43:05,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:05,112 INFO L276 IsEmpty]: Start isEmpty. Operand 6983 states and 24385 transitions. [2022-01-18 07:43:05,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:05,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:05,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:05,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-01-18 07:43:05,122 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:05,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:05,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2089968606, now seen corresponding path program 158 times [2022-01-18 07:43:05,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:05,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971144332] [2022-01-18 07:43:05,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:05,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:05,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:05,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:05,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971144332] [2022-01-18 07:43:05,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971144332] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:05,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:05,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:05,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387096841] [2022-01-18 07:43:05,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:05,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:05,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:05,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:05,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:05,335 INFO L87 Difference]: Start difference. First operand 6983 states and 24385 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:07,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:07,697 INFO L93 Difference]: Finished difference Result 11670 states and 40166 transitions. [2022-01-18 07:43:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 07:43:07,697 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:07,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:07,720 INFO L225 Difference]: With dead ends: 11670 [2022-01-18 07:43:07,720 INFO L226 Difference]: Without dead ends: 11606 [2022-01-18 07:43:07,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2200 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=531, Invalid=6609, Unknown=0, NotChecked=0, Total=7140 [2022-01-18 07:43:07,721 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 606 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 3466 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 3591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 3466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:07,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [606 Valid, 2665 Invalid, 3591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 3466 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:43:07,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11606 states. [2022-01-18 07:43:07,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11606 to 6899. [2022-01-18 07:43:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6899 states, 6898 states have (on average 3.4956509133082054) internal successors, (24113), 6898 states have internal predecessors, (24113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:07,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6899 states to 6899 states and 24113 transitions. [2022-01-18 07:43:07,845 INFO L78 Accepts]: Start accepts. Automaton has 6899 states and 24113 transitions. Word has length 39 [2022-01-18 07:43:07,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:07,845 INFO L470 AbstractCegarLoop]: Abstraction has 6899 states and 24113 transitions. [2022-01-18 07:43:07,845 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) [2022-01-18 07:43:07,845 INFO L276 IsEmpty]: Start isEmpty. Operand 6899 states and 24113 transitions. [2022-01-18 07:43:07,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:07,855 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:07,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:07,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-01-18 07:43:07,856 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:07,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:07,856 INFO L85 PathProgramCache]: Analyzing trace with hash 494083182, now seen corresponding path program 159 times [2022-01-18 07:43:07,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:07,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969903091] [2022-01-18 07:43:07,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:07,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:08,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:08,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:08,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969903091] [2022-01-18 07:43:08,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969903091] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:08,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:08,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:08,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420993689] [2022-01-18 07:43:08,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:08,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:08,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:08,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:08,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:08,065 INFO L87 Difference]: Start difference. First operand 6899 states and 24113 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:09,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:09,512 INFO L93 Difference]: Finished difference Result 9487 states and 32701 transitions. [2022-01-18 07:43:09,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 07:43:09,513 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:09,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:09,533 INFO L225 Difference]: With dead ends: 9487 [2022-01-18 07:43:09,533 INFO L226 Difference]: Without dead ends: 9432 [2022-01-18 07:43:09,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=305, Invalid=2775, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 07:43:09,533 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 426 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 2698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:09,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1961 Invalid, 2698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:09,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9432 states. [2022-01-18 07:43:09,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9432 to 6901. [2022-01-18 07:43:09,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6901 states, 6900 states have (on average 3.495072463768116) internal successors, (24116), 6900 states have internal predecessors, (24116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:09,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6901 states to 6901 states and 24116 transitions. [2022-01-18 07:43:09,646 INFO L78 Accepts]: Start accepts. Automaton has 6901 states and 24116 transitions. Word has length 39 [2022-01-18 07:43:09,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:09,646 INFO L470 AbstractCegarLoop]: Abstraction has 6901 states and 24116 transitions. [2022-01-18 07:43:09,646 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) [2022-01-18 07:43:09,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6901 states and 24116 transitions. [2022-01-18 07:43:09,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:09,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:09,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:09,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-01-18 07:43:09,656 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:09,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:09,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1666735404, now seen corresponding path program 160 times [2022-01-18 07:43:09,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:09,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897180148] [2022-01-18 07:43:09,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:09,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:09,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:09,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:09,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897180148] [2022-01-18 07:43:09,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897180148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:09,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:09,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:09,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937213560] [2022-01-18 07:43:09,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:09,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:09,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:09,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:09,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:09,863 INFO L87 Difference]: Start difference. First operand 6901 states and 24116 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:11,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:11,571 INFO L93 Difference]: Finished difference Result 10611 states and 36548 transitions. [2022-01-18 07:43:11,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 07:43:11,571 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 [2022-01-18 07:43:11,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:11,591 INFO L225 Difference]: With dead ends: 10611 [2022-01-18 07:43:11,592 INFO L226 Difference]: Without dead ends: 10565 [2022-01-18 07:43:11,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=325, Invalid=3215, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:43:11,592 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 451 mSDsluCounter, 2562 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 3083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:11,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 2387 Invalid, 3083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:43:11,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10565 states. [2022-01-18 07:43:11,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10565 to 6905. [2022-01-18 07:43:11,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6905 states, 6904 states have (on average 3.4942062572421784) internal successors, (24124), 6904 states have internal predecessors, (24124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6905 states to 6905 states and 24124 transitions. [2022-01-18 07:43:11,706 INFO L78 Accepts]: Start accepts. Automaton has 6905 states and 24124 transitions. Word has length 39 [2022-01-18 07:43:11,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:11,706 INFO L470 AbstractCegarLoop]: Abstraction has 6905 states and 24124 transitions. [2022-01-18 07:43:11,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:11,706 INFO L276 IsEmpty]: Start isEmpty. Operand 6905 states and 24124 transitions. [2022-01-18 07:43:11,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:11,716 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:11,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:11,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-01-18 07:43:11,717 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:11,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:11,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1419269242, now seen corresponding path program 161 times [2022-01-18 07:43:11,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:11,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7666754] [2022-01-18 07:43:11,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:11,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:11,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:11,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7666754] [2022-01-18 07:43:11,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7666754] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:11,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:11,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:11,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258951438] [2022-01-18 07:43:11,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:11,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:11,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:11,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:11,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:11,918 INFO L87 Difference]: Start difference. First operand 6905 states and 24124 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:13,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:13,450 INFO L93 Difference]: Finished difference Result 9531 states and 32885 transitions. [2022-01-18 07:43:13,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 07:43:13,451 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:13,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:13,473 INFO L225 Difference]: With dead ends: 9531 [2022-01-18 07:43:13,473 INFO L226 Difference]: Without dead ends: 9478 [2022-01-18 07:43:13,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=2775, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 07:43:13,474 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 429 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 2704 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:13,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 2087 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2704 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:13,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9478 states. [2022-01-18 07:43:13,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9478 to 6895. [2022-01-18 07:43:13,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6895 states, 6894 states have (on average 3.496228604583696) internal successors, (24103), 6894 states have internal predecessors, (24103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:13,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6895 states to 6895 states and 24103 transitions. [2022-01-18 07:43:13,604 INFO L78 Accepts]: Start accepts. Automaton has 6895 states and 24103 transitions. Word has length 39 [2022-01-18 07:43:13,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:13,604 INFO L470 AbstractCegarLoop]: Abstraction has 6895 states and 24103 transitions. [2022-01-18 07:43:13,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 6895 states and 24103 transitions. [2022-01-18 07:43:13,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:13,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:13,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:13,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-01-18 07:43:13,615 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:13,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:13,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1336822532, now seen corresponding path program 162 times [2022-01-18 07:43:13,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:13,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473533636] [2022-01-18 07:43:13,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:13,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:13,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:13,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:13,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473533636] [2022-01-18 07:43:13,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473533636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:13,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:13,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:13,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853268572] [2022-01-18 07:43:13,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:13,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:13,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:13,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:13,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:13,821 INFO L87 Difference]: Start difference. First operand 6895 states and 24103 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:15,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:15,222 INFO L93 Difference]: Finished difference Result 9368 states and 32482 transitions. [2022-01-18 07:43:15,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 07:43:15,223 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:15,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:15,241 INFO L225 Difference]: With dead ends: 9368 [2022-01-18 07:43:15,241 INFO L226 Difference]: Without dead ends: 9301 [2022-01-18 07:43:15,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=234, Invalid=2316, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 07:43:15,241 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 414 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 2856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:15,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 2100 Invalid, 2856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2808 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:15,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9301 states. [2022-01-18 07:43:15,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9301 to 6951. [2022-01-18 07:43:15,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6951 states, 6950 states have (on average 3.4913669064748203) internal successors, (24265), 6950 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:15,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6951 states to 6951 states and 24265 transitions. [2022-01-18 07:43:15,348 INFO L78 Accepts]: Start accepts. Automaton has 6951 states and 24265 transitions. Word has length 39 [2022-01-18 07:43:15,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:15,348 INFO L470 AbstractCegarLoop]: Abstraction has 6951 states and 24265 transitions. [2022-01-18 07:43:15,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:15,348 INFO L276 IsEmpty]: Start isEmpty. Operand 6951 states and 24265 transitions. [2022-01-18 07:43:15,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:15,359 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:15,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:15,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-01-18 07:43:15,359 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:15,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:15,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1467417380, now seen corresponding path program 163 times [2022-01-18 07:43:15,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:15,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554470854] [2022-01-18 07:43:15,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:15,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:15,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:15,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:15,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554470854] [2022-01-18 07:43:15,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554470854] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:15,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:15,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:15,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462833659] [2022-01-18 07:43:15,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:15,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:15,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:15,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:15,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:15,558 INFO L87 Difference]: Start difference. First operand 6951 states and 24265 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:16,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:16,953 INFO L93 Difference]: Finished difference Result 9404 states and 32566 transitions. [2022-01-18 07:43:16,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 07:43:16,954 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:16,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:16,974 INFO L225 Difference]: With dead ends: 9404 [2022-01-18 07:43:16,974 INFO L226 Difference]: Without dead ends: 9341 [2022-01-18 07:43:16,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=238, Invalid=2212, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 07:43:16,975 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 394 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 2666 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:16,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 1957 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2666 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:16,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2022-01-18 07:43:17,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 6983. [2022-01-18 07:43:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6983 states, 6982 states have (on average 3.487396161558293) internal successors, (24349), 6982 states have internal predecessors, (24349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:17,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6983 states to 6983 states and 24349 transitions. [2022-01-18 07:43:17,104 INFO L78 Accepts]: Start accepts. Automaton has 6983 states and 24349 transitions. Word has length 39 [2022-01-18 07:43:17,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:17,104 INFO L470 AbstractCegarLoop]: Abstraction has 6983 states and 24349 transitions. [2022-01-18 07:43:17,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:17,104 INFO L276 IsEmpty]: Start isEmpty. Operand 6983 states and 24349 transitions. [2022-01-18 07:43:17,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:17,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:17,116 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] [2022-01-18 07:43:17,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-01-18 07:43:17,116 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:17,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:17,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1997317828, now seen corresponding path program 164 times [2022-01-18 07:43:17,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:17,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882913149] [2022-01-18 07:43:17,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:17,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:17,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:17,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:17,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882913149] [2022-01-18 07:43:17,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882913149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:17,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:17,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:17,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927843301] [2022-01-18 07:43:17,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:17,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:17,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:17,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:17,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:17,321 INFO L87 Difference]: Start difference. First operand 6983 states and 24349 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:18,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:18,716 INFO L93 Difference]: Finished difference Result 9387 states and 32540 transitions. [2022-01-18 07:43:18,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 07:43:18,716 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:18,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:18,734 INFO L225 Difference]: With dead ends: 9387 [2022-01-18 07:43:18,734 INFO L226 Difference]: Without dead ends: 9264 [2022-01-18 07:43:18,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=246, Invalid=2304, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 07:43:18,735 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 384 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 2623 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 2670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:18,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 1997 Invalid, 2670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2623 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:18,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9264 states. [2022-01-18 07:43:18,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9264 to 6951. [2022-01-18 07:43:18,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6951 states, 6950 states have (on average 3.489064748201439) internal successors, (24249), 6950 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:18,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6951 states to 6951 states and 24249 transitions. [2022-01-18 07:43:18,836 INFO L78 Accepts]: Start accepts. Automaton has 6951 states and 24249 transitions. Word has length 39 [2022-01-18 07:43:18,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:18,836 INFO L470 AbstractCegarLoop]: Abstraction has 6951 states and 24249 transitions. [2022-01-18 07:43:18,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:18,837 INFO L276 IsEmpty]: Start isEmpty. Operand 6951 states and 24249 transitions. [2022-01-18 07:43:18,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:18,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:18,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:18,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-01-18 07:43:18,847 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:18,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:18,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1579238298, now seen corresponding path program 165 times [2022-01-18 07:43:18,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:18,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123254226] [2022-01-18 07:43:18,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:18,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:19,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:19,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:19,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123254226] [2022-01-18 07:43:19,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123254226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:19,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:19,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:19,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718622344] [2022-01-18 07:43:19,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:19,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:19,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:19,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:19,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:19,051 INFO L87 Difference]: Start difference. First operand 6951 states and 24249 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:21,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:21,093 INFO L93 Difference]: Finished difference Result 10564 states and 36421 transitions. [2022-01-18 07:43:21,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-01-18 07:43:21,093 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:21,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:21,114 INFO L225 Difference]: With dead ends: 10564 [2022-01-18 07:43:21,114 INFO L226 Difference]: Without dead ends: 10458 [2022-01-18 07:43:21,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1773 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=485, Invalid=5521, Unknown=0, NotChecked=0, Total=6006 [2022-01-18 07:43:21,115 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 599 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 3069 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 3192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 3069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:21,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 2329 Invalid, 3192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 3069 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:43:21,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10458 states. [2022-01-18 07:43:21,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10458 to 6978. [2022-01-18 07:43:21,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6978 states, 6977 states have (on average 3.486742152787731) internal successors, (24327), 6977 states have internal predecessors, (24327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:21,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6978 states to 6978 states and 24327 transitions. [2022-01-18 07:43:21,234 INFO L78 Accepts]: Start accepts. Automaton has 6978 states and 24327 transitions. Word has length 39 [2022-01-18 07:43:21,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:21,234 INFO L470 AbstractCegarLoop]: Abstraction has 6978 states and 24327 transitions. [2022-01-18 07:43:21,234 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) [2022-01-18 07:43:21,234 INFO L276 IsEmpty]: Start isEmpty. Operand 6978 states and 24327 transitions. [2022-01-18 07:43:21,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:21,245 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:21,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:21,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-01-18 07:43:21,245 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:21,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:21,245 INFO L85 PathProgramCache]: Analyzing trace with hash -201360004, now seen corresponding path program 166 times [2022-01-18 07:43:21,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:21,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025293782] [2022-01-18 07:43:21,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:21,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:21,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:21,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:21,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025293782] [2022-01-18 07:43:21,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025293782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:21,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:21,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:21,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496593857] [2022-01-18 07:43:21,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:21,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:21,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:21,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:21,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:21,455 INFO L87 Difference]: Start difference. First operand 6978 states and 24327 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:23,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:23,770 INFO L93 Difference]: Finished difference Result 11735 states and 40418 transitions. [2022-01-18 07:43:23,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-18 07:43:23,770 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:23,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:23,794 INFO L225 Difference]: With dead ends: 11735 [2022-01-18 07:43:23,794 INFO L226 Difference]: Without dead ends: 11683 [2022-01-18 07:43:23,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2276 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=540, Invalid=6770, Unknown=0, NotChecked=0, Total=7310 [2022-01-18 07:43:23,795 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 632 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 3453 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 3582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:23,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [632 Valid, 2727 Invalid, 3582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3453 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:43:23,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11683 states. [2022-01-18 07:43:23,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11683 to 6956. [2022-01-18 07:43:23,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6955 states have (on average 3.4869877785765637) internal successors, (24252), 6955 states have internal predecessors, (24252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:23,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 24252 transitions. [2022-01-18 07:43:23,926 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 24252 transitions. Word has length 39 [2022-01-18 07:43:23,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:23,926 INFO L470 AbstractCegarLoop]: Abstraction has 6956 states and 24252 transitions. [2022-01-18 07:43:23,926 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) [2022-01-18 07:43:23,927 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 24252 transitions. [2022-01-18 07:43:23,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:23,937 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:23,937 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] [2022-01-18 07:43:23,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-01-18 07:43:23,937 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:23,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:23,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1797245428, now seen corresponding path program 167 times [2022-01-18 07:43:23,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:23,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266778640] [2022-01-18 07:43:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:23,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:24,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:24,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266778640] [2022-01-18 07:43:24,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266778640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:24,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:24,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:24,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942552734] [2022-01-18 07:43:24,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:24,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:24,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:24,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:24,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:24,138 INFO L87 Difference]: Start difference. First operand 6956 states and 24252 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:25,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:25,559 INFO L93 Difference]: Finished difference Result 9517 states and 32824 transitions. [2022-01-18 07:43:25,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 07:43:25,559 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 [2022-01-18 07:43:25,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:25,578 INFO L225 Difference]: With dead ends: 9517 [2022-01-18 07:43:25,579 INFO L226 Difference]: Without dead ends: 9462 [2022-01-18 07:43:25,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=289, Invalid=2573, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:43:25,579 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 426 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 2589 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:25,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1942 Invalid, 2646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2589 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:25,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9462 states. [2022-01-18 07:43:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9462 to 6964. [2022-01-18 07:43:25,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6964 states, 6963 states have (on average 3.4864282636794486) internal successors, (24276), 6963 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:25,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6964 states to 6964 states and 24276 transitions. [2022-01-18 07:43:25,691 INFO L78 Accepts]: Start accepts. Automaton has 6964 states and 24276 transitions. Word has length 39 [2022-01-18 07:43:25,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:25,691 INFO L470 AbstractCegarLoop]: Abstraction has 6964 states and 24276 transitions. [2022-01-18 07:43:25,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:25,691 INFO L276 IsEmpty]: Start isEmpty. Operand 6964 states and 24276 transitions. [2022-01-18 07:43:25,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:25,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:25,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:25,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-01-18 07:43:25,702 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:25,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:25,702 INFO L85 PathProgramCache]: Analyzing trace with hash -624593206, now seen corresponding path program 168 times [2022-01-18 07:43:25,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:25,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389198974] [2022-01-18 07:43:25,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:25,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:25,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:25,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:25,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389198974] [2022-01-18 07:43:25,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389198974] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:25,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:25,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:25,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052169341] [2022-01-18 07:43:25,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:25,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:25,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:25,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:25,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:25,904 INFO L87 Difference]: Start difference. First operand 6964 states and 24276 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:27,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:27,565 INFO L93 Difference]: Finished difference Result 10709 states and 36828 transitions. [2022-01-18 07:43:27,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 07:43:27,565 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:27,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:27,587 INFO L225 Difference]: With dead ends: 10709 [2022-01-18 07:43:27,587 INFO L226 Difference]: Without dead ends: 10649 [2022-01-18 07:43:27,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=323, Invalid=3217, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:43:27,588 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 459 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 3049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:27,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 2392 Invalid, 3049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:43:27,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10649 states. [2022-01-18 07:43:27,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10649 to 6962. [2022-01-18 07:43:27,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6961 states have (on average 3.4867116793564144) internal successors, (24271), 6961 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:27,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 24271 transitions. [2022-01-18 07:43:27,708 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 24271 transitions. Word has length 39 [2022-01-18 07:43:27,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:27,708 INFO L470 AbstractCegarLoop]: Abstraction has 6962 states and 24271 transitions. [2022-01-18 07:43:27,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:27,708 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 24271 transitions. [2022-01-18 07:43:27,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:27,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:27,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:27,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-01-18 07:43:27,719 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:27,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:27,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1792970488, now seen corresponding path program 169 times [2022-01-18 07:43:27,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:27,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291796018] [2022-01-18 07:43:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:27,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:27,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:27,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:27,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291796018] [2022-01-18 07:43:27,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291796018] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:27,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:27,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:27,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844312044] [2022-01-18 07:43:27,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:27,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:27,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:27,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:27,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:27,919 INFO L87 Difference]: Start difference. First operand 6962 states and 24271 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:29,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:29,297 INFO L93 Difference]: Finished difference Result 9486 states and 32778 transitions. [2022-01-18 07:43:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:43:29,298 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:29,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:29,316 INFO L225 Difference]: With dead ends: 9486 [2022-01-18 07:43:29,317 INFO L226 Difference]: Without dead ends: 9395 [2022-01-18 07:43:29,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=2485, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 07:43:29,317 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 411 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 2573 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:29,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 2005 Invalid, 2626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2573 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:29,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9395 states. [2022-01-18 07:43:29,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9395 to 6962. [2022-01-18 07:43:29,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6961 states have (on average 3.4858497342335872) internal successors, (24265), 6961 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:29,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 24265 transitions. [2022-01-18 07:43:29,429 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 24265 transitions. Word has length 39 [2022-01-18 07:43:29,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:29,429 INFO L470 AbstractCegarLoop]: Abstraction has 6962 states and 24265 transitions. [2022-01-18 07:43:29,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:29,429 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 24265 transitions. [2022-01-18 07:43:29,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:29,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:29,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:29,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-01-18 07:43:29,439 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:29,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:29,440 INFO L85 PathProgramCache]: Analyzing trace with hash 290488282, now seen corresponding path program 170 times [2022-01-18 07:43:29,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:29,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212289798] [2022-01-18 07:43:29,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:29,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:29,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:29,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:29,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212289798] [2022-01-18 07:43:29,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212289798] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:29,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:29,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:29,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3115050] [2022-01-18 07:43:29,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:29,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:29,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:29,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:29,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:29,641 INFO L87 Difference]: Start difference. First operand 6962 states and 24265 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:31,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:31,359 INFO L93 Difference]: Finished difference Result 10861 states and 37319 transitions. [2022-01-18 07:43:31,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 07:43:31,359 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:31,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:31,381 INFO L225 Difference]: With dead ends: 10861 [2022-01-18 07:43:31,381 INFO L226 Difference]: Without dead ends: 10660 [2022-01-18 07:43:31,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 861 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=309, Invalid=3231, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:43:31,382 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 453 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 3151 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 3213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:31,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 2595 Invalid, 3213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3151 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:43:31,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10660 states. [2022-01-18 07:43:31,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10660 to 6982. [2022-01-18 07:43:31,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6982 states, 6981 states have (on average 3.484744305973356) internal successors, (24327), 6981 states have internal predecessors, (24327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6982 states to 6982 states and 24327 transitions. [2022-01-18 07:43:31,501 INFO L78 Accepts]: Start accepts. Automaton has 6982 states and 24327 transitions. Word has length 39 [2022-01-18 07:43:31,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:31,501 INFO L470 AbstractCegarLoop]: Abstraction has 6982 states and 24327 transitions. [2022-01-18 07:43:31,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand 6982 states and 24327 transitions. [2022-01-18 07:43:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:31,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:31,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:31,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-01-18 07:43:31,512 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:31,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:31,512 INFO L85 PathProgramCache]: Analyzing trace with hash -121376578, now seen corresponding path program 171 times [2022-01-18 07:43:31,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:31,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58871527] [2022-01-18 07:43:31,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:31,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:31,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:31,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:31,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58871527] [2022-01-18 07:43:31,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58871527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:31,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:31,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:31,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282700363] [2022-01-18 07:43:31,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:31,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:31,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:31,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:31,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:31,734 INFO L87 Difference]: Start difference. First operand 6982 states and 24327 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:33,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:33,428 INFO L93 Difference]: Finished difference Result 9601 states and 32947 transitions. [2022-01-18 07:43:33,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 07:43:33,428 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:33,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:33,447 INFO L225 Difference]: With dead ends: 9601 [2022-01-18 07:43:33,447 INFO L226 Difference]: Without dead ends: 9534 [2022-01-18 07:43:33,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=319, Invalid=3103, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 07:43:33,448 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 435 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 2725 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:33,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [435 Valid, 2068 Invalid, 2790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2725 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:43:33,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9534 states. [2022-01-18 07:43:33,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9534 to 7008. [2022-01-18 07:43:33,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 7007 states have (on average 3.4840873412301985) internal successors, (24413), 7007 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:33,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 24413 transitions. [2022-01-18 07:43:33,558 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 24413 transitions. Word has length 39 [2022-01-18 07:43:33,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:33,558 INFO L470 AbstractCegarLoop]: Abstraction has 7008 states and 24413 transitions. [2022-01-18 07:43:33,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:33,558 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 24413 transitions. [2022-01-18 07:43:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:33,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:33,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:33,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-01-18 07:43:33,569 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:33,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:33,569 INFO L85 PathProgramCache]: Analyzing trace with hash -251971426, now seen corresponding path program 172 times [2022-01-18 07:43:33,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:33,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091310290] [2022-01-18 07:43:33,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:33,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:33,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:33,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:33,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091310290] [2022-01-18 07:43:33,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091310290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:33,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:33,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:33,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806664282] [2022-01-18 07:43:33,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:33,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:33,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:33,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:33,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:33,771 INFO L87 Difference]: Start difference. First operand 7008 states and 24413 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:35,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:35,230 INFO L93 Difference]: Finished difference Result 9514 states and 32714 transitions. [2022-01-18 07:43:35,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 07:43:35,230 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 [2022-01-18 07:43:35,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:35,250 INFO L225 Difference]: With dead ends: 9514 [2022-01-18 07:43:35,250 INFO L226 Difference]: Without dead ends: 9451 [2022-01-18 07:43:35,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=305, Invalid=2775, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 07:43:35,251 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 398 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 2601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:35,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 1915 Invalid, 2601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:35,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9451 states. [2022-01-18 07:43:35,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9451 to 7008. [2022-01-18 07:43:35,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 7007 states have (on average 3.4835164835164836) internal successors, (24409), 7007 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:35,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 24409 transitions. [2022-01-18 07:43:35,362 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 24409 transitions. Word has length 39 [2022-01-18 07:43:35,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:35,362 INFO L470 AbstractCegarLoop]: Abstraction has 7008 states and 24409 transitions. [2022-01-18 07:43:35,363 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) [2022-01-18 07:43:35,363 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 24409 transitions. [2022-01-18 07:43:35,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:35,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:35,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:35,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-01-18 07:43:35,374 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:35,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:35,374 INFO L85 PathProgramCache]: Analyzing trace with hash -387650018, now seen corresponding path program 173 times [2022-01-18 07:43:35,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:35,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128525165] [2022-01-18 07:43:35,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:35,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:35,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:35,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:35,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128525165] [2022-01-18 07:43:35,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128525165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:35,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:35,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:35,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211415173] [2022-01-18 07:43:35,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:35,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:35,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:35,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:35,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:35,601 INFO L87 Difference]: Start difference. First operand 7008 states and 24409 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:37,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:37,878 INFO L93 Difference]: Finished difference Result 10634 states and 36442 transitions. [2022-01-18 07:43:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-01-18 07:43:37,878 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:37,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:37,899 INFO L225 Difference]: With dead ends: 10634 [2022-01-18 07:43:37,900 INFO L226 Difference]: Without dead ends: 10591 [2022-01-18 07:43:37,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2336 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=592, Invalid=6890, Unknown=0, NotChecked=0, Total=7482 [2022-01-18 07:43:37,901 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 570 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 3031 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 3160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 3031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:37,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [570 Valid, 2173 Invalid, 3160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 3031 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:43:37,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10591 states. [2022-01-18 07:43:38,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10591 to 7018. [2022-01-18 07:43:38,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7018 states, 7017 states have (on average 3.4839675074818297) internal successors, (24447), 7017 states have internal predecessors, (24447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:38,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7018 states to 7018 states and 24447 transitions. [2022-01-18 07:43:38,021 INFO L78 Accepts]: Start accepts. Automaton has 7018 states and 24447 transitions. Word has length 39 [2022-01-18 07:43:38,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:38,021 INFO L470 AbstractCegarLoop]: Abstraction has 7018 states and 24447 transitions. [2022-01-18 07:43:38,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:38,021 INFO L276 IsEmpty]: Start isEmpty. Operand 7018 states and 24447 transitions. [2022-01-18 07:43:38,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:38,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:38,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:38,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-01-18 07:43:38,050 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:38,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:38,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2126718976, now seen corresponding path program 174 times [2022-01-18 07:43:38,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:38,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583617431] [2022-01-18 07:43:38,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:38,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:38,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:38,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:38,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583617431] [2022-01-18 07:43:38,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583617431] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:38,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:38,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:38,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361750537] [2022-01-18 07:43:38,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:38,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:38,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:38,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:38,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:38,252 INFO L87 Difference]: Start difference. First operand 7018 states and 24447 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:40,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:40,772 INFO L93 Difference]: Finished difference Result 11861 states and 40576 transitions. [2022-01-18 07:43:40,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-01-18 07:43:40,772 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:40,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:40,797 INFO L225 Difference]: With dead ends: 11861 [2022-01-18 07:43:40,797 INFO L226 Difference]: Without dead ends: 11809 [2022-01-18 07:43:40,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2834 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=639, Invalid=8103, Unknown=0, NotChecked=0, Total=8742 [2022-01-18 07:43:40,798 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 601 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 3376 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 3508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 3376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:40,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 2603 Invalid, 3508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 3376 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:43:40,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11809 states. [2022-01-18 07:43:40,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11809 to 7014. [2022-01-18 07:43:40,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7014 states, 7013 states have (on average 3.4839583630400686) internal successors, (24433), 7013 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:40,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7014 states to 7014 states and 24433 transitions. [2022-01-18 07:43:40,928 INFO L78 Accepts]: Start accepts. Automaton has 7014 states and 24433 transitions. Word has length 39 [2022-01-18 07:43:40,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:40,928 INFO L470 AbstractCegarLoop]: Abstraction has 7014 states and 24433 transitions. [2022-01-18 07:43:40,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:40,928 INFO L276 IsEmpty]: Start isEmpty. Operand 7014 states and 24433 transitions. [2022-01-18 07:43:40,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:40,938 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:40,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:40,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-01-18 07:43:40,939 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:40,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:40,939 INFO L85 PathProgramCache]: Analyzing trace with hash 530833552, now seen corresponding path program 175 times [2022-01-18 07:43:40,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:40,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576410521] [2022-01-18 07:43:40,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:40,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:41,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:41,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:41,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576410521] [2022-01-18 07:43:41,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576410521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:41,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:41,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:41,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111370092] [2022-01-18 07:43:41,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:41,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:41,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:41,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:41,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:41,140 INFO L87 Difference]: Start difference. First operand 7014 states and 24433 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:42,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:42,678 INFO L93 Difference]: Finished difference Result 9608 states and 32926 transitions. [2022-01-18 07:43:42,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 07:43:42,679 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:42,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:42,728 INFO L225 Difference]: With dead ends: 9608 [2022-01-18 07:43:42,728 INFO L226 Difference]: Without dead ends: 9553 [2022-01-18 07:43:42,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=339, Invalid=3083, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 07:43:42,729 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 415 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 2572 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:42,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 1923 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2572 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:42,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9553 states. [2022-01-18 07:43:42,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9553 to 7016. [2022-01-18 07:43:42,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 7015 states have (on average 3.4833927298645757) internal successors, (24436), 7015 states have internal predecessors, (24436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:42,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 24436 transitions. [2022-01-18 07:43:42,832 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 24436 transitions. Word has length 39 [2022-01-18 07:43:42,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:42,832 INFO L470 AbstractCegarLoop]: Abstraction has 7016 states and 24436 transitions. [2022-01-18 07:43:42,832 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) [2022-01-18 07:43:42,832 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 24436 transitions. [2022-01-18 07:43:42,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:42,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:42,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:42,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-01-18 07:43:42,843 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:42,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:42,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1703485774, now seen corresponding path program 176 times [2022-01-18 07:43:42,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:42,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361388495] [2022-01-18 07:43:42,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:42,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:43,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:43,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:43,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361388495] [2022-01-18 07:43:43,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361388495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:43,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:43,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:43,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035563819] [2022-01-18 07:43:43,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:43,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:43,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:43,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:43,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:43,044 INFO L87 Difference]: Start difference. First operand 7016 states and 24436 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:44,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:44,779 INFO L93 Difference]: Finished difference Result 10732 states and 36773 transitions. [2022-01-18 07:43:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 07:43:44,780 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:44,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:44,801 INFO L225 Difference]: With dead ends: 10732 [2022-01-18 07:43:44,801 INFO L226 Difference]: Without dead ends: 10686 [2022-01-18 07:43:44,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 984 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=356, Invalid=3550, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 07:43:44,802 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 440 mSDsluCounter, 2547 mSDsCounter, 0 mSdLazyCounter, 2963 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 3023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:44,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [440 Valid, 2344 Invalid, 3023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2963 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:43:44,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10686 states. [2022-01-18 07:43:44,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10686 to 7020. [2022-01-18 07:43:44,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7020 states, 7019 states have (on average 3.4825473714204302) internal successors, (24444), 7019 states have internal predecessors, (24444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:44,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7020 states to 7020 states and 24444 transitions. [2022-01-18 07:43:44,921 INFO L78 Accepts]: Start accepts. Automaton has 7020 states and 24444 transitions. Word has length 39 [2022-01-18 07:43:44,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:44,921 INFO L470 AbstractCegarLoop]: Abstraction has 7020 states and 24444 transitions. [2022-01-18 07:43:44,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:44,922 INFO L276 IsEmpty]: Start isEmpty. Operand 7020 states and 24444 transitions. [2022-01-18 07:43:44,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:44,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:44,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:44,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-01-18 07:43:44,932 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:44,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:44,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1456019612, now seen corresponding path program 177 times [2022-01-18 07:43:44,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:44,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743103617] [2022-01-18 07:43:44,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:44,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:45,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:45,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743103617] [2022-01-18 07:43:45,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743103617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:45,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:45,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:45,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849473576] [2022-01-18 07:43:45,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:45,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:45,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:45,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:45,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:45,132 INFO L87 Difference]: Start difference. First operand 7020 states and 24444 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:46,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:46,791 INFO L93 Difference]: Finished difference Result 9720 states and 33271 transitions. [2022-01-18 07:43:46,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 07:43:46,791 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 [2022-01-18 07:43:46,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:46,811 INFO L225 Difference]: With dead ends: 9720 [2022-01-18 07:43:46,811 INFO L226 Difference]: Without dead ends: 9667 [2022-01-18 07:43:46,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=343, Invalid=3197, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:43:46,812 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 426 mSDsluCounter, 2388 mSDsCounter, 0 mSdLazyCounter, 2734 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:46,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 2107 Invalid, 2795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2734 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:43:46,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9667 states. [2022-01-18 07:43:46,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9667 to 7010. [2022-01-18 07:43:46,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7010 states, 7009 states have (on average 3.484805250392353) internal successors, (24425), 7009 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7010 states to 7010 states and 24425 transitions. [2022-01-18 07:43:46,929 INFO L78 Accepts]: Start accepts. Automaton has 7010 states and 24425 transitions. Word has length 39 [2022-01-18 07:43:46,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:46,929 INFO L470 AbstractCegarLoop]: Abstraction has 7010 states and 24425 transitions. [2022-01-18 07:43:46,929 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) [2022-01-18 07:43:46,929 INFO L276 IsEmpty]: Start isEmpty. Operand 7010 states and 24425 transitions. [2022-01-18 07:43:46,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:46,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:46,940 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] [2022-01-18 07:43:46,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-01-18 07:43:46,941 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:46,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:46,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1380408388, now seen corresponding path program 178 times [2022-01-18 07:43:46,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:46,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048383394] [2022-01-18 07:43:46,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:46,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:47,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:47,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048383394] [2022-01-18 07:43:47,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048383394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:47,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:47,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:47,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980145251] [2022-01-18 07:43:47,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:47,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:47,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:47,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:47,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:47,149 INFO L87 Difference]: Start difference. First operand 7010 states and 24425 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:48,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:48,662 INFO L93 Difference]: Finished difference Result 9511 states and 32733 transitions. [2022-01-18 07:43:48,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 07:43:48,662 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 [2022-01-18 07:43:48,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:48,681 INFO L225 Difference]: With dead ends: 9511 [2022-01-18 07:43:48,681 INFO L226 Difference]: Without dead ends: 9444 [2022-01-18 07:43:48,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=294, Invalid=2898, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 07:43:48,682 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 414 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 2829 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 2884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:48,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 2097 Invalid, 2884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2829 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:48,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9444 states. [2022-01-18 07:43:48,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9444 to 7028. [2022-01-18 07:43:48,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7028 states, 7027 states have (on average 3.481855699444998) internal successors, (24467), 7027 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:48,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7028 states to 7028 states and 24467 transitions. [2022-01-18 07:43:48,794 INFO L78 Accepts]: Start accepts. Automaton has 7028 states and 24467 transitions. Word has length 39 [2022-01-18 07:43:48,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:48,794 INFO L470 AbstractCegarLoop]: Abstraction has 7028 states and 24467 transitions. [2022-01-18 07:43:48,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:48,794 INFO L276 IsEmpty]: Start isEmpty. Operand 7028 states and 24467 transitions. [2022-01-18 07:43:48,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:48,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:48,804 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] [2022-01-18 07:43:48,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-01-18 07:43:48,805 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:48,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:48,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1022338180, now seen corresponding path program 179 times [2022-01-18 07:43:48,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:48,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724732931] [2022-01-18 07:43:48,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:48,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:49,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:49,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:49,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724732931] [2022-01-18 07:43:49,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724732931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:49,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:49,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:49,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961908168] [2022-01-18 07:43:49,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:49,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:49,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:49,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:49,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:49,007 INFO L87 Difference]: Start difference. First operand 7028 states and 24467 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:50,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:50,432 INFO L93 Difference]: Finished difference Result 9477 states and 32620 transitions. [2022-01-18 07:43:50,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:43:50,432 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 [2022-01-18 07:43:50,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:50,450 INFO L225 Difference]: With dead ends: 9477 [2022-01-18 07:43:50,450 INFO L226 Difference]: Without dead ends: 9434 [2022-01-18 07:43:50,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=267, Invalid=2489, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 07:43:50,451 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 396 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 2656 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:50,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 1929 Invalid, 2700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2656 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:50,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9434 states. [2022-01-18 07:43:50,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9434 to 7046. [2022-01-18 07:43:50,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 7045 states have (on average 3.4784953867991484) internal successors, (24506), 7045 states have internal predecessors, (24506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:50,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 24506 transitions. [2022-01-18 07:43:50,563 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 24506 transitions. Word has length 39 [2022-01-18 07:43:50,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:50,563 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 24506 transitions. [2022-01-18 07:43:50,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:50,564 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 24506 transitions. [2022-01-18 07:43:50,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:50,575 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:50,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:50,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-01-18 07:43:50,576 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:50,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:50,576 INFO L85 PathProgramCache]: Analyzing trace with hash -192807010, now seen corresponding path program 180 times [2022-01-18 07:43:50,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:50,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966595755] [2022-01-18 07:43:50,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:50,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:50,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:50,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966595755] [2022-01-18 07:43:50,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966595755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:50,789 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:50,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:50,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277984604] [2022-01-18 07:43:50,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:50,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:50,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:50,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:50,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:50,790 INFO L87 Difference]: Start difference. First operand 7046 states and 24506 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:52,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:52,246 INFO L93 Difference]: Finished difference Result 9411 states and 32458 transitions. [2022-01-18 07:43:52,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 07:43:52,246 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 [2022-01-18 07:43:52,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:52,268 INFO L225 Difference]: With dead ends: 9411 [2022-01-18 07:43:52,268 INFO L226 Difference]: Without dead ends: 9348 [2022-01-18 07:43:52,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=266, Invalid=2490, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 07:43:52,269 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 413 mSDsluCounter, 2145 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:52,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1907 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:52,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9348 states. [2022-01-18 07:43:52,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9348 to 7028. [2022-01-18 07:43:52,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7028 states, 7027 states have (on average 3.4810018500071154) internal successors, (24461), 7027 states have internal predecessors, (24461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:52,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7028 states to 7028 states and 24461 transitions. [2022-01-18 07:43:52,408 INFO L78 Accepts]: Start accepts. Automaton has 7028 states and 24461 transitions. Word has length 39 [2022-01-18 07:43:52,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:52,409 INFO L470 AbstractCegarLoop]: Abstraction has 7028 states and 24461 transitions. [2022-01-18 07:43:52,409 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) [2022-01-18 07:43:52,409 INFO L276 IsEmpty]: Start isEmpty. Operand 7028 states and 24461 transitions. [2022-01-18 07:43:52,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:52,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:52,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:52,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-01-18 07:43:52,421 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:52,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:52,421 INFO L85 PathProgramCache]: Analyzing trace with hash 605966874, now seen corresponding path program 181 times [2022-01-18 07:43:52,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:52,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542907377] [2022-01-18 07:43:52,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:52,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:52,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:52,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542907377] [2022-01-18 07:43:52,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542907377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:52,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:52,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:52,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817950479] [2022-01-18 07:43:52,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:52,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:52,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:52,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:52,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:52,646 INFO L87 Difference]: Start difference. First operand 7028 states and 24461 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:55,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:55,038 INFO L93 Difference]: Finished difference Result 10516 states and 36140 transitions. [2022-01-18 07:43:55,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-01-18 07:43:55,038 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:55,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:55,060 INFO L225 Difference]: With dead ends: 10516 [2022-01-18 07:43:55,060 INFO L226 Difference]: Without dead ends: 10473 [2022-01-18 07:43:55,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1940 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=523, Invalid=5957, Unknown=0, NotChecked=0, Total=6480 [2022-01-18 07:43:55,061 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 532 mSDsluCounter, 2412 mSDsCounter, 0 mSdLazyCounter, 3126 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 3126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:55,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [532 Valid, 2178 Invalid, 3236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 3126 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:43:55,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10473 states. [2022-01-18 07:43:55,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10473 to 7034. [2022-01-18 07:43:55,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7034 states, 7033 states have (on average 3.4811602445613534) internal successors, (24483), 7033 states have internal predecessors, (24483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:55,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7034 states to 7034 states and 24483 transitions. [2022-01-18 07:43:55,178 INFO L78 Accepts]: Start accepts. Automaton has 7034 states and 24483 transitions. Word has length 39 [2022-01-18 07:43:55,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:55,178 INFO L470 AbstractCegarLoop]: Abstraction has 7034 states and 24483 transitions. [2022-01-18 07:43:55,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:55,178 INFO L276 IsEmpty]: Start isEmpty. Operand 7034 states and 24483 transitions. [2022-01-18 07:43:55,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:55,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:55,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:55,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-01-18 07:43:55,189 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:55,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:55,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1174631428, now seen corresponding path program 182 times [2022-01-18 07:43:55,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:55,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906909374] [2022-01-18 07:43:55,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:55,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:55,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:55,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:55,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906909374] [2022-01-18 07:43:55,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906909374] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:55,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:55,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:55,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719925856] [2022-01-18 07:43:55,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:55,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:55,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:55,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:55,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:55,393 INFO L87 Difference]: Start difference. First operand 7034 states and 24483 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:57,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:57,821 INFO L93 Difference]: Finished difference Result 11758 states and 40313 transitions. [2022-01-18 07:43:57,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-01-18 07:43:57,821 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:43:57,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:57,845 INFO L225 Difference]: With dead ends: 11758 [2022-01-18 07:43:57,845 INFO L226 Difference]: Without dead ends: 11706 [2022-01-18 07:43:57,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2400 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=565, Invalid=7091, Unknown=0, NotChecked=0, Total=7656 [2022-01-18 07:43:57,846 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 563 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 3492 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 3609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 3492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:57,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 2626 Invalid, 3609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 3492 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:43:57,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11706 states. [2022-01-18 07:43:57,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11706 to 7027. [2022-01-18 07:43:57,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 7026 states have (on average 3.480927981781953) internal successors, (24457), 7026 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:57,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 24457 transitions. [2022-01-18 07:43:57,974 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 24457 transitions. Word has length 39 [2022-01-18 07:43:57,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:57,974 INFO L470 AbstractCegarLoop]: Abstraction has 7027 states and 24457 transitions. [2022-01-18 07:43:57,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:57,974 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 24457 transitions. [2022-01-18 07:43:57,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:57,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:57,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:43:57,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-01-18 07:43:57,985 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:57,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:57,985 INFO L85 PathProgramCache]: Analyzing trace with hash -931452356, now seen corresponding path program 183 times [2022-01-18 07:43:57,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:57,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056428711] [2022-01-18 07:43:57,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:57,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:43:58,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:43:58,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:43:58,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056428711] [2022-01-18 07:43:58,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056428711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:43:58,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:43:58,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:43:58,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514179066] [2022-01-18 07:43:58,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:43:58,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:43:58,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:43:58,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:43:58,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:43:58,219 INFO L87 Difference]: Start difference. First operand 7027 states and 24457 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:59,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:43:59,673 INFO L93 Difference]: Finished difference Result 9525 states and 32721 transitions. [2022-01-18 07:43:59,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 07:43:59,673 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 [2022-01-18 07:43:59,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:43:59,692 INFO L225 Difference]: With dead ends: 9525 [2022-01-18 07:43:59,692 INFO L226 Difference]: Without dead ends: 9482 [2022-01-18 07:43:59,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=277, Invalid=2585, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:43:59,693 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 407 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 2652 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:43:59,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1906 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2652 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:43:59,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9482 states. [2022-01-18 07:43:59,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9482 to 7036. [2022-01-18 07:43:59,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7036 states, 7035 states have (on average 3.4794598436389483) internal successors, (24478), 7035 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:59,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7036 states to 7036 states and 24478 transitions. [2022-01-18 07:43:59,810 INFO L78 Accepts]: Start accepts. Automaton has 7036 states and 24478 transitions. Word has length 39 [2022-01-18 07:43:59,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:43:59,811 INFO L470 AbstractCegarLoop]: Abstraction has 7036 states and 24478 transitions. [2022-01-18 07:43:59,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:43:59,811 INFO L276 IsEmpty]: Start isEmpty. Operand 7036 states and 24478 transitions. [2022-01-18 07:43:59,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:43:59,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:43:59,821 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] [2022-01-18 07:43:59,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-01-18 07:43:59,821 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:43:59,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:43:59,821 INFO L85 PathProgramCache]: Analyzing trace with hash 818654780, now seen corresponding path program 184 times [2022-01-18 07:43:59,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:43:59,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760605178] [2022-01-18 07:43:59,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:43:59,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:43:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:00,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:00,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:00,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760605178] [2022-01-18 07:44:00,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760605178] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:00,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:00,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:00,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464438980] [2022-01-18 07:44:00,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:00,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:00,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:00,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:00,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:00,024 INFO L87 Difference]: Start difference. First operand 7036 states and 24478 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:01,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:01,508 INFO L93 Difference]: Finished difference Result 9473 states and 32596 transitions. [2022-01-18 07:44:01,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 07:44:01,508 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:01,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:01,527 INFO L225 Difference]: With dead ends: 9473 [2022-01-18 07:44:01,528 INFO L226 Difference]: Without dead ends: 9422 [2022-01-18 07:44:01,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=284, Invalid=2686, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 07:44:01,528 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 412 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 2657 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:01,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1913 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2657 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:01,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9422 states. [2022-01-18 07:44:01,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9422 to 7030. [2022-01-18 07:44:01,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7030 states, 7029 states have (on average 3.480153649167734) internal successors, (24462), 7029 states have internal predecessors, (24462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:01,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7030 states to 7030 states and 24462 transitions. [2022-01-18 07:44:01,642 INFO L78 Accepts]: Start accepts. Automaton has 7030 states and 24462 transitions. Word has length 39 [2022-01-18 07:44:01,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:01,642 INFO L470 AbstractCegarLoop]: Abstraction has 7030 states and 24462 transitions. [2022-01-18 07:44:01,642 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) [2022-01-18 07:44:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 7030 states and 24462 transitions. [2022-01-18 07:44:01,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:01,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:01,654 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] [2022-01-18 07:44:01,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-01-18 07:44:01,654 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:01,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:01,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1435873182, now seen corresponding path program 185 times [2022-01-18 07:44:01,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:01,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810519502] [2022-01-18 07:44:01,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:01,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:01,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:01,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:01,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810519502] [2022-01-18 07:44:01,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810519502] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:01,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:01,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:01,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31670375] [2022-01-18 07:44:01,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:01,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:01,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:01,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:01,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:01,869 INFO L87 Difference]: Start difference. First operand 7030 states and 24462 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:03,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:03,596 INFO L93 Difference]: Finished difference Result 10649 states and 36563 transitions. [2022-01-18 07:44:03,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 07:44:03,597 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:03,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:03,618 INFO L225 Difference]: With dead ends: 10649 [2022-01-18 07:44:03,618 INFO L226 Difference]: Without dead ends: 10603 [2022-01-18 07:44:03,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=3117, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 07:44:03,619 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 422 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 3086 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 3135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:03,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 2329 Invalid, 3135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3086 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:44:03,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2022-01-18 07:44:03,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 7037. [2022-01-18 07:44:03,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7037 states, 7036 states have (on average 3.4788231949971573) internal successors, (24477), 7036 states have internal predecessors, (24477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:03,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 24477 transitions. [2022-01-18 07:44:03,737 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 24477 transitions. Word has length 39 [2022-01-18 07:44:03,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:03,737 INFO L470 AbstractCegarLoop]: Abstraction has 7037 states and 24477 transitions. [2022-01-18 07:44:03,737 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) [2022-01-18 07:44:03,737 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 24477 transitions. [2022-01-18 07:44:03,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:03,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:03,747 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] [2022-01-18 07:44:03,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-01-18 07:44:03,747 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:03,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:03,748 INFO L85 PathProgramCache]: Analyzing trace with hash 805692, now seen corresponding path program 186 times [2022-01-18 07:44:03,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:03,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309128377] [2022-01-18 07:44:03,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:03,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:03,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:03,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309128377] [2022-01-18 07:44:03,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309128377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:03,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:03,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:03,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712497323] [2022-01-18 07:44:03,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:03,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:03,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:03,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:03,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:03,956 INFO L87 Difference]: Start difference. First operand 7037 states and 24477 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:05,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:05,409 INFO L93 Difference]: Finished difference Result 9405 states and 32431 transitions. [2022-01-18 07:44:05,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:44:05,410 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:05,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:05,429 INFO L225 Difference]: With dead ends: 9405 [2022-01-18 07:44:05,429 INFO L226 Difference]: Without dead ends: 9338 [2022-01-18 07:44:05,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=275, Invalid=2587, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:44:05,430 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 406 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 2642 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:05,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 1907 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2642 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:05,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9338 states. [2022-01-18 07:44:05,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9338 to 7021. [2022-01-18 07:44:05,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7021 states, 7020 states have (on average 3.4821937321937324) internal successors, (24445), 7020 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:05,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7021 states to 7021 states and 24445 transitions. [2022-01-18 07:44:05,544 INFO L78 Accepts]: Start accepts. Automaton has 7021 states and 24445 transitions. Word has length 39 [2022-01-18 07:44:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:05,544 INFO L470 AbstractCegarLoop]: Abstraction has 7021 states and 24445 transitions. [2022-01-18 07:44:05,544 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) [2022-01-18 07:44:05,544 INFO L276 IsEmpty]: Start isEmpty. Operand 7021 states and 24445 transitions. [2022-01-18 07:44:05,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:05,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:05,555 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] [2022-01-18 07:44:05,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-01-18 07:44:05,555 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:05,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:05,555 INFO L85 PathProgramCache]: Analyzing trace with hash 2008602846, now seen corresponding path program 187 times [2022-01-18 07:44:05,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:05,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679705782] [2022-01-18 07:44:05,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:05,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:05,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:05,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:05,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679705782] [2022-01-18 07:44:05,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679705782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:05,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:05,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:05,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105390722] [2022-01-18 07:44:05,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:05,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:05,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:05,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:05,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:05,762 INFO L87 Difference]: Start difference. First operand 7021 states and 24445 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:07,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:07,203 INFO L93 Difference]: Finished difference Result 9501 states and 32677 transitions. [2022-01-18 07:44:07,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 07:44:07,204 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:07,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:07,224 INFO L225 Difference]: With dead ends: 9501 [2022-01-18 07:44:07,224 INFO L226 Difference]: Without dead ends: 9438 [2022-01-18 07:44:07,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=279, Invalid=2583, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:44:07,225 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 387 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:07,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 1934 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:07,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9438 states. [2022-01-18 07:44:07,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9438 to 7025. [2022-01-18 07:44:07,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7024 states have (on average 3.481634396355353) internal successors, (24455), 7024 states have internal predecessors, (24455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:07,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 24455 transitions. [2022-01-18 07:44:07,339 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 24455 transitions. Word has length 39 [2022-01-18 07:44:07,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:07,339 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 24455 transitions. [2022-01-18 07:44:07,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:07,339 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 24455 transitions. [2022-01-18 07:44:07,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:07,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:07,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:07,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-01-18 07:44:07,350 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:07,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:07,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1763110748, now seen corresponding path program 188 times [2022-01-18 07:44:07,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:07,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065793661] [2022-01-18 07:44:07,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:07,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:07,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:07,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:07,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065793661] [2022-01-18 07:44:07,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065793661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:07,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:07,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:07,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098580777] [2022-01-18 07:44:07,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:07,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:07,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:07,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:07,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:07,553 INFO L87 Difference]: Start difference. First operand 7025 states and 24455 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:08,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:08,947 INFO L93 Difference]: Finished difference Result 9554 states and 32803 transitions. [2022-01-18 07:44:08,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 07:44:08,947 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:08,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:08,966 INFO L225 Difference]: With dead ends: 9554 [2022-01-18 07:44:08,966 INFO L226 Difference]: Without dead ends: 9511 [2022-01-18 07:44:08,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=266, Invalid=2490, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 07:44:08,966 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 402 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 2680 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:08,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 1930 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2680 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:08,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9511 states. [2022-01-18 07:44:09,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9511 to 7043. [2022-01-18 07:44:09,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7043 states, 7042 states have (on average 3.478273217835842) internal successors, (24494), 7042 states have internal predecessors, (24494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:09,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7043 states to 7043 states and 24494 transitions. [2022-01-18 07:44:09,079 INFO L78 Accepts]: Start accepts. Automaton has 7043 states and 24494 transitions. Word has length 39 [2022-01-18 07:44:09,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:09,079 INFO L470 AbstractCegarLoop]: Abstraction has 7043 states and 24494 transitions. [2022-01-18 07:44:09,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:09,079 INFO L276 IsEmpty]: Start isEmpty. Operand 7043 states and 24494 transitions. [2022-01-18 07:44:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:09,089 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:09,089 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] [2022-01-18 07:44:09,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-01-18 07:44:09,090 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:09,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:09,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1702325378, now seen corresponding path program 189 times [2022-01-18 07:44:09,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:09,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452979317] [2022-01-18 07:44:09,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:09,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:09,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:09,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:09,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452979317] [2022-01-18 07:44:09,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452979317] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:09,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:09,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:09,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243935142] [2022-01-18 07:44:09,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:09,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:09,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:09,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:09,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:09,296 INFO L87 Difference]: Start difference. First operand 7043 states and 24494 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:10,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:10,731 INFO L93 Difference]: Finished difference Result 9423 states and 32487 transitions. [2022-01-18 07:44:10,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 07:44:10,732 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:10,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:10,750 INFO L225 Difference]: With dead ends: 9423 [2022-01-18 07:44:10,750 INFO L226 Difference]: Without dead ends: 9360 [2022-01-18 07:44:10,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 07:44:10,751 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 390 mSDsluCounter, 2194 mSDsCounter, 0 mSdLazyCounter, 2690 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 2733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:10,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1952 Invalid, 2733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2690 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:10,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9360 states. [2022-01-18 07:44:10,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9360 to 7025. [2022-01-18 07:44:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7024 states have (on average 3.4810649202733486) internal successors, (24451), 7024 states have internal predecessors, (24451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 24451 transitions. [2022-01-18 07:44:10,861 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 24451 transitions. Word has length 39 [2022-01-18 07:44:10,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:10,861 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 24451 transitions. [2022-01-18 07:44:10,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 24451 transitions. [2022-01-18 07:44:10,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:10,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:10,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:10,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-01-18 07:44:10,873 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:10,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:10,873 INFO L85 PathProgramCache]: Analyzing trace with hash 579406110, now seen corresponding path program 190 times [2022-01-18 07:44:10,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:10,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987293746] [2022-01-18 07:44:10,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:10,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:11,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:11,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:11,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987293746] [2022-01-18 07:44:11,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987293746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:11,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:11,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:11,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847125499] [2022-01-18 07:44:11,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:11,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:11,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:11,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:11,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:11,077 INFO L87 Difference]: Start difference. First operand 7025 states and 24451 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:12,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:12,564 INFO L93 Difference]: Finished difference Result 9507 states and 32702 transitions. [2022-01-18 07:44:12,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 07:44:12,564 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:12,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:12,585 INFO L225 Difference]: With dead ends: 9507 [2022-01-18 07:44:12,585 INFO L226 Difference]: Without dead ends: 9452 [2022-01-18 07:44:12,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=305, Invalid=2887, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 07:44:12,585 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 407 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:12,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1926 Invalid, 2720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:12,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9452 states. [2022-01-18 07:44:12,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9452 to 7027. [2022-01-18 07:44:12,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 7026 states have (on average 3.4807856532877883) internal successors, (24456), 7026 states have internal predecessors, (24456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:12,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 24456 transitions. [2022-01-18 07:44:12,698 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 24456 transitions. Word has length 39 [2022-01-18 07:44:12,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:12,698 INFO L470 AbstractCegarLoop]: Abstraction has 7027 states and 24456 transitions. [2022-01-18 07:44:12,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:12,698 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 24456 transitions. [2022-01-18 07:44:12,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:12,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:12,708 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] [2022-01-18 07:44:12,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-01-18 07:44:12,709 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:12,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:12,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1916464124, now seen corresponding path program 191 times [2022-01-18 07:44:12,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:12,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730125614] [2022-01-18 07:44:12,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:12,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:12,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:12,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730125614] [2022-01-18 07:44:12,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730125614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:12,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:12,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:12,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364913824] [2022-01-18 07:44:12,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:12,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:12,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:12,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:12,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:12,914 INFO L87 Difference]: Start difference. First operand 7027 states and 24456 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:14,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:14,390 INFO L93 Difference]: Finished difference Result 9483 states and 32632 transitions. [2022-01-18 07:44:14,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 07:44:14,391 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:14,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:14,408 INFO L225 Difference]: With dead ends: 9483 [2022-01-18 07:44:14,408 INFO L226 Difference]: Without dead ends: 9440 [2022-01-18 07:44:14,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=281, Invalid=2689, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 07:44:14,409 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 397 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 2636 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 2681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:14,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 1910 Invalid, 2681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2636 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:14,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9440 states. [2022-01-18 07:44:14,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9440 to 7033. [2022-01-18 07:44:14,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7033 states, 7032 states have (on average 3.4796643913538112) internal successors, (24469), 7032 states have internal predecessors, (24469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:14,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7033 states to 7033 states and 24469 transitions. [2022-01-18 07:44:14,513 INFO L78 Accepts]: Start accepts. Automaton has 7033 states and 24469 transitions. Word has length 39 [2022-01-18 07:44:14,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:14,513 INFO L470 AbstractCegarLoop]: Abstraction has 7033 states and 24469 transitions. [2022-01-18 07:44:14,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:14,513 INFO L276 IsEmpty]: Start isEmpty. Operand 7033 states and 24469 transitions. [2022-01-18 07:44:14,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:14,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:14,523 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] [2022-01-18 07:44:14,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-01-18 07:44:14,523 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:14,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:14,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1645044574, now seen corresponding path program 192 times [2022-01-18 07:44:14,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:14,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092153944] [2022-01-18 07:44:14,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:14,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:14,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:14,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:14,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092153944] [2022-01-18 07:44:14,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092153944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:14,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:14,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:14,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557124964] [2022-01-18 07:44:14,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:14,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:14,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:14,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:14,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:14,727 INFO L87 Difference]: Start difference. First operand 7033 states and 24469 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:16,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:16,164 INFO L93 Difference]: Finished difference Result 9417 states and 32470 transitions. [2022-01-18 07:44:16,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 07:44:16,165 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:16,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:16,184 INFO L225 Difference]: With dead ends: 9417 [2022-01-18 07:44:16,184 INFO L226 Difference]: Without dead ends: 9356 [2022-01-18 07:44:16,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=267, Invalid=2595, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:44:16,185 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 387 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2692 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:16,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 1937 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2692 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:16,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9356 states. [2022-01-18 07:44:16,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9356 to 7021. [2022-01-18 07:44:16,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7021 states, 7020 states have (on average 3.481908831908832) internal successors, (24443), 7020 states have internal predecessors, (24443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:16,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7021 states to 7021 states and 24443 transitions. [2022-01-18 07:44:16,307 INFO L78 Accepts]: Start accepts. Automaton has 7021 states and 24443 transitions. Word has length 39 [2022-01-18 07:44:16,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:16,307 INFO L470 AbstractCegarLoop]: Abstraction has 7021 states and 24443 transitions. [2022-01-18 07:44:16,307 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) [2022-01-18 07:44:16,307 INFO L276 IsEmpty]: Start isEmpty. Operand 7021 states and 24443 transitions. [2022-01-18 07:44:16,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:16,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:16,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:16,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-01-18 07:44:16,318 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:16,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:16,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1546889360, now seen corresponding path program 193 times [2022-01-18 07:44:16,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:16,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760057151] [2022-01-18 07:44:16,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:16,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:16,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:16,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:16,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760057151] [2022-01-18 07:44:16,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760057151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:16,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:16,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:16,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32850804] [2022-01-18 07:44:16,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:16,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:16,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:16,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:16,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:16,519 INFO L87 Difference]: Start difference. First operand 7021 states and 24443 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:18,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:18,282 INFO L93 Difference]: Finished difference Result 9607 states and 32929 transitions. [2022-01-18 07:44:18,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 07:44:18,283 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:18,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:18,301 INFO L225 Difference]: With dead ends: 9607 [2022-01-18 07:44:18,301 INFO L226 Difference]: Without dead ends: 9552 [2022-01-18 07:44:18,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=373, Invalid=3533, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 07:44:18,301 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 419 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 2721 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 2796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:18,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 1936 Invalid, 2796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2721 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:44:18,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9552 states. [2022-01-18 07:44:18,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9552 to 7026. [2022-01-18 07:44:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7026 states, 7025 states have (on average 3.4811387900355872) internal successors, (24455), 7025 states have internal predecessors, (24455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:18,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 24455 transitions. [2022-01-18 07:44:18,406 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 24455 transitions. Word has length 39 [2022-01-18 07:44:18,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:18,406 INFO L470 AbstractCegarLoop]: Abstraction has 7026 states and 24455 transitions. [2022-01-18 07:44:18,406 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) [2022-01-18 07:44:18,406 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 24455 transitions. [2022-01-18 07:44:18,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:18,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:18,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:18,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-01-18 07:44:18,417 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:18,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:18,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1575425714, now seen corresponding path program 194 times [2022-01-18 07:44:18,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:18,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244929382] [2022-01-18 07:44:18,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:18,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:18,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:18,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:18,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244929382] [2022-01-18 07:44:18,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244929382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:18,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:18,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:18,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771328220] [2022-01-18 07:44:18,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:18,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:18,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:18,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:18,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:18,616 INFO L87 Difference]: Start difference. First operand 7026 states and 24455 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:20,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:20,422 INFO L93 Difference]: Finished difference Result 10787 states and 36895 transitions. [2022-01-18 07:44:20,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 07:44:20,423 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:20,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:20,444 INFO L225 Difference]: With dead ends: 10787 [2022-01-18 07:44:20,444 INFO L226 Difference]: Without dead ends: 10741 [2022-01-18 07:44:20,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=370, Invalid=3790, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 07:44:20,445 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 452 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 3087 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:20,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 2359 Invalid, 3149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3087 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:44:20,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10741 states. [2022-01-18 07:44:20,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10741 to 7032. [2022-01-18 07:44:20,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7032 states, 7031 states have (on average 3.4803015218318873) internal successors, (24470), 7031 states have internal predecessors, (24470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:20,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7032 states to 7032 states and 24470 transitions. [2022-01-18 07:44:20,568 INFO L78 Accepts]: Start accepts. Automaton has 7032 states and 24470 transitions. Word has length 39 [2022-01-18 07:44:20,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:20,568 INFO L470 AbstractCegarLoop]: Abstraction has 7032 states and 24470 transitions. [2022-01-18 07:44:20,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:20,568 INFO L276 IsEmpty]: Start isEmpty. Operand 7032 states and 24470 transitions. [2022-01-18 07:44:20,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:20,579 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:20,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:20,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-01-18 07:44:20,579 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:20,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:20,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1822891876, now seen corresponding path program 195 times [2022-01-18 07:44:20,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:20,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781848869] [2022-01-18 07:44:20,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:20,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:20,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:20,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:20,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781848869] [2022-01-18 07:44:20,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781848869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:20,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:20,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:20,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623132245] [2022-01-18 07:44:20,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:20,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:20,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:20,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:20,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:20,794 INFO L87 Difference]: Start difference. First operand 7032 states and 24470 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:22,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:22,455 INFO L93 Difference]: Finished difference Result 9709 states and 33233 transitions. [2022-01-18 07:44:22,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 07:44:22,455 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:22,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:22,473 INFO L225 Difference]: With dead ends: 9709 [2022-01-18 07:44:22,473 INFO L226 Difference]: Without dead ends: 9664 [2022-01-18 07:44:22,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=335, Invalid=3205, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:44:22,474 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 414 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 2799 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:22,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 2084 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2799 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:44:22,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9664 states. [2022-01-18 07:44:22,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9664 to 7030. [2022-01-18 07:44:22,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7030 states, 7029 states have (on average 3.48072272015934) internal successors, (24466), 7029 states have internal predecessors, (24466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:22,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7030 states to 7030 states and 24466 transitions. [2022-01-18 07:44:22,584 INFO L78 Accepts]: Start accepts. Automaton has 7030 states and 24466 transitions. Word has length 39 [2022-01-18 07:44:22,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:22,584 INFO L470 AbstractCegarLoop]: Abstraction has 7030 states and 24466 transitions. [2022-01-18 07:44:22,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:22,584 INFO L276 IsEmpty]: Start isEmpty. Operand 7030 states and 24466 transitions. [2022-01-18 07:44:22,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:22,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:22,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:22,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-01-18 07:44:22,595 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:22,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:22,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1643170594, now seen corresponding path program 196 times [2022-01-18 07:44:22,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:22,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407290711] [2022-01-18 07:44:22,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:22,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:22,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:22,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:22,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407290711] [2022-01-18 07:44:22,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407290711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:22,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:22,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:22,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273617029] [2022-01-18 07:44:22,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:22,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:22,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:22,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:22,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:22,793 INFO L87 Difference]: Start difference. First operand 7030 states and 24466 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:24,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:24,376 INFO L93 Difference]: Finished difference Result 9613 states and 32941 transitions. [2022-01-18 07:44:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 07:44:24,376 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:24,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:24,396 INFO L225 Difference]: With dead ends: 9613 [2022-01-18 07:44:24,396 INFO L226 Difference]: Without dead ends: 9570 [2022-01-18 07:44:24,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=332, Invalid=3208, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:44:24,397 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 427 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 2728 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:24,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 1933 Invalid, 2790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2728 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:24,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9570 states. [2022-01-18 07:44:24,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9570 to 7039. [2022-01-18 07:44:24,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 7038 states have (on average 3.4792554703040635) internal successors, (24487), 7038 states have internal predecessors, (24487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:24,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 24487 transitions. [2022-01-18 07:44:24,510 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 24487 transitions. Word has length 39 [2022-01-18 07:44:24,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:24,510 INFO L470 AbstractCegarLoop]: Abstraction has 7039 states and 24487 transitions. [2022-01-18 07:44:24,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:24,510 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 24487 transitions. [2022-01-18 07:44:24,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:24,521 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:24,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:24,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-01-18 07:44:24,522 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:24,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:24,522 INFO L85 PathProgramCache]: Analyzing trace with hash 106936542, now seen corresponding path program 197 times [2022-01-18 07:44:24,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:24,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32781062] [2022-01-18 07:44:24,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:24,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:24,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:24,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:24,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32781062] [2022-01-18 07:44:24,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32781062] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:24,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:24,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:24,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241846978] [2022-01-18 07:44:24,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:24,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:24,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:24,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:24,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:24,730 INFO L87 Difference]: Start difference. First operand 7039 states and 24487 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:26,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:26,300 INFO L93 Difference]: Finished difference Result 9563 states and 32817 transitions. [2022-01-18 07:44:26,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 07:44:26,301 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:26,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:26,319 INFO L225 Difference]: With dead ends: 9563 [2022-01-18 07:44:26,319 INFO L226 Difference]: Without dead ends: 9512 [2022-01-18 07:44:26,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=307, Invalid=2999, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 07:44:26,319 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 414 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:26,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 1942 Invalid, 2793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:26,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9512 states. [2022-01-18 07:44:26,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9512 to 7039. [2022-01-18 07:44:26,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 7038 states have (on average 3.478829212844558) internal successors, (24484), 7038 states have internal predecessors, (24484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:26,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 24484 transitions. [2022-01-18 07:44:26,425 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 24484 transitions. Word has length 39 [2022-01-18 07:44:26,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:26,426 INFO L470 AbstractCegarLoop]: Abstraction has 7039 states and 24484 transitions. [2022-01-18 07:44:26,426 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) [2022-01-18 07:44:26,426 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 24484 transitions. [2022-01-18 07:44:26,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:26,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:26,436 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] [2022-01-18 07:44:26,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-01-18 07:44:26,436 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:26,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:26,436 INFO L85 PathProgramCache]: Analyzing trace with hash 724154944, now seen corresponding path program 198 times [2022-01-18 07:44:26,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:26,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25444002] [2022-01-18 07:44:26,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:26,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:26,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:26,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:26,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25444002] [2022-01-18 07:44:26,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25444002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:26,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:26,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:26,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079729484] [2022-01-18 07:44:26,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:26,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:26,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:26,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:26,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:26,634 INFO L87 Difference]: Start difference. First operand 7039 states and 24484 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:28,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:28,430 INFO L93 Difference]: Finished difference Result 10790 states and 36899 transitions. [2022-01-18 07:44:28,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 07:44:28,430 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:28,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:28,451 INFO L225 Difference]: With dead ends: 10790 [2022-01-18 07:44:28,451 INFO L226 Difference]: Without dead ends: 10744 [2022-01-18 07:44:28,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=342, Invalid=3564, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 07:44:28,452 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 441 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 3134 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 3194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 3134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:28,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 2358 Invalid, 3194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 3134 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:44:28,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10744 states. [2022-01-18 07:44:28,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10744 to 7046. [2022-01-18 07:44:28,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 7045 states have (on average 3.4775017743080197) internal successors, (24499), 7045 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:28,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 24499 transitions. [2022-01-18 07:44:28,579 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 24499 transitions. Word has length 39 [2022-01-18 07:44:28,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:28,580 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 24499 transitions. [2022-01-18 07:44:28,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:28,580 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 24499 transitions. [2022-01-18 07:44:28,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:28,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:28,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:28,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-01-18 07:44:28,590 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:28,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:28,590 INFO L85 PathProgramCache]: Analyzing trace with hash -710912546, now seen corresponding path program 199 times [2022-01-18 07:44:28,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:28,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547130497] [2022-01-18 07:44:28,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:28,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:28,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:28,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:28,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547130497] [2022-01-18 07:44:28,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547130497] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:28,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:28,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:28,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114128957] [2022-01-18 07:44:28,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:28,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:28,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:28,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:28,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:28,793 INFO L87 Difference]: Start difference. First operand 7046 states and 24499 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:30,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:30,322 INFO L93 Difference]: Finished difference Result 9549 states and 32770 transitions. [2022-01-18 07:44:30,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 07:44:30,322 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:30,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:30,341 INFO L225 Difference]: With dead ends: 9549 [2022-01-18 07:44:30,341 INFO L226 Difference]: Without dead ends: 9494 [2022-01-18 07:44:30,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=2895, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 07:44:30,341 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 421 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 2712 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 2766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:30,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1924 Invalid, 2766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2712 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:30,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9494 states. [2022-01-18 07:44:30,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9494 to 7043. [2022-01-18 07:44:30,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7043 states, 7042 states have (on average 3.478131212723658) internal successors, (24493), 7042 states have internal predecessors, (24493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:30,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7043 states to 7043 states and 24493 transitions. [2022-01-18 07:44:30,448 INFO L78 Accepts]: Start accepts. Automaton has 7043 states and 24493 transitions. Word has length 39 [2022-01-18 07:44:30,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:30,448 INFO L470 AbstractCegarLoop]: Abstraction has 7043 states and 24493 transitions. [2022-01-18 07:44:30,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:30,448 INFO L276 IsEmpty]: Start isEmpty. Operand 7043 states and 24493 transitions. [2022-01-18 07:44:30,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:30,458 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:30,458 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] [2022-01-18 07:44:30,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-01-18 07:44:30,458 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:30,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:30,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1993615664, now seen corresponding path program 200 times [2022-01-18 07:44:30,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:30,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653415364] [2022-01-18 07:44:30,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:30,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:30,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:30,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:30,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653415364] [2022-01-18 07:44:30,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653415364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:30,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:30,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:30,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113008234] [2022-01-18 07:44:30,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:30,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:30,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:30,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:30,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:30,658 INFO L87 Difference]: Start difference. First operand 7043 states and 24493 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:32,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:32,273 INFO L93 Difference]: Finished difference Result 9533 states and 32730 transitions. [2022-01-18 07:44:32,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 07:44:32,273 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 [2022-01-18 07:44:32,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:32,292 INFO L225 Difference]: With dead ends: 9533 [2022-01-18 07:44:32,292 INFO L226 Difference]: Without dead ends: 9476 [2022-01-18 07:44:32,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=3001, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 07:44:32,293 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 416 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 2746 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 2805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:32,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 1945 Invalid, 2805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2746 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:44:32,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9476 states. [2022-01-18 07:44:32,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9476 to 7035. [2022-01-18 07:44:32,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7035 states, 7034 states have (on average 3.4793858402047197) internal successors, (24474), 7034 states have internal predecessors, (24474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:32,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7035 states to 7035 states and 24474 transitions. [2022-01-18 07:44:32,405 INFO L78 Accepts]: Start accepts. Automaton has 7035 states and 24474 transitions. Word has length 39 [2022-01-18 07:44:32,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:32,405 INFO L470 AbstractCegarLoop]: Abstraction has 7035 states and 24474 transitions. [2022-01-18 07:44:32,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 7035 states and 24474 transitions. [2022-01-18 07:44:32,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:32,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:32,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:32,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-01-18 07:44:32,416 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:32,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:32,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1252884038, now seen corresponding path program 201 times [2022-01-18 07:44:32,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:32,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690774658] [2022-01-18 07:44:32,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:32,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:32,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:32,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:32,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690774658] [2022-01-18 07:44:32,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690774658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:32,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:32,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:32,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101326579] [2022-01-18 07:44:32,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:32,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:32,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:32,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:32,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:32,619 INFO L87 Difference]: Start difference. First operand 7035 states and 24474 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:34,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:34,316 INFO L93 Difference]: Finished difference Result 9876 states and 33881 transitions. [2022-01-18 07:44:34,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 07:44:34,316 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:34,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:34,336 INFO L225 Difference]: With dead ends: 9876 [2022-01-18 07:44:34,337 INFO L226 Difference]: Without dead ends: 9833 [2022-01-18 07:44:34,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=322, Invalid=3218, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:44:34,337 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 425 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 2935 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 3000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:34,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 2243 Invalid, 3000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2935 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:44:34,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2022-01-18 07:44:34,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 7031. [2022-01-18 07:44:34,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7031 states, 7030 states have (on average 3.4799431009957327) internal successors, (24464), 7030 states have internal predecessors, (24464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:34,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7031 states to 7031 states and 24464 transitions. [2022-01-18 07:44:34,449 INFO L78 Accepts]: Start accepts. Automaton has 7031 states and 24464 transitions. Word has length 39 [2022-01-18 07:44:34,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:34,449 INFO L470 AbstractCegarLoop]: Abstraction has 7031 states and 24464 transitions. [2022-01-18 07:44:34,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:34,449 INFO L276 IsEmpty]: Start isEmpty. Operand 7031 states and 24464 transitions. [2022-01-18 07:44:34,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:34,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:34,460 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] [2022-01-18 07:44:34,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-01-18 07:44:34,460 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:34,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:34,460 INFO L85 PathProgramCache]: Analyzing trace with hash 583873452, now seen corresponding path program 202 times [2022-01-18 07:44:34,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:34,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930453690] [2022-01-18 07:44:34,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:34,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:34,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:34,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:34,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930453690] [2022-01-18 07:44:34,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930453690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:34,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:34,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:34,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569068589] [2022-01-18 07:44:34,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:34,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:34,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:34,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:34,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:34,675 INFO L87 Difference]: Start difference. First operand 7031 states and 24464 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:36,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:36,268 INFO L93 Difference]: Finished difference Result 9712 states and 33413 transitions. [2022-01-18 07:44:36,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 07:44:36,269 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:36,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:36,288 INFO L225 Difference]: With dead ends: 9712 [2022-01-18 07:44:36,288 INFO L226 Difference]: Without dead ends: 9649 [2022-01-18 07:44:36,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=304, Invalid=3002, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 07:44:36,289 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 416 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 2873 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:36,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 2095 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2873 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:44:36,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9649 states. [2022-01-18 07:44:36,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9649 to 7019. [2022-01-18 07:44:36,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 3.482331148475349) internal successors, (24439), 7018 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:36,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 24439 transitions. [2022-01-18 07:44:36,401 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 24439 transitions. Word has length 39 [2022-01-18 07:44:36,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:36,401 INFO L470 AbstractCegarLoop]: Abstraction has 7019 states and 24439 transitions. [2022-01-18 07:44:36,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:36,401 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 24439 transitions. [2022-01-18 07:44:36,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:36,412 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:36,412 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] [2022-01-18 07:44:36,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-01-18 07:44:36,412 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:36,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:36,412 INFO L85 PathProgramCache]: Analyzing trace with hash -109091684, now seen corresponding path program 203 times [2022-01-18 07:44:36,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:36,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877602055] [2022-01-18 07:44:36,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:36,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:36,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:36,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:36,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877602055] [2022-01-18 07:44:36,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877602055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:36,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:36,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:36,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318743832] [2022-01-18 07:44:36,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:36,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:36,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:36,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:36,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:36,613 INFO L87 Difference]: Start difference. First operand 7019 states and 24439 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:37,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:37,889 INFO L93 Difference]: Finished difference Result 9263 states and 32060 transitions. [2022-01-18 07:44:37,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 07:44:37,889 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:37,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:37,907 INFO L225 Difference]: With dead ends: 9263 [2022-01-18 07:44:37,907 INFO L226 Difference]: Without dead ends: 9200 [2022-01-18 07:44:37,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=2036, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 07:44:37,907 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 350 mSDsluCounter, 2061 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 2536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:37,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1912 Invalid, 2536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:44:37,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9200 states. [2022-01-18 07:44:37,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9200 to 7051. [2022-01-18 07:44:37,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7051 states, 7050 states have (on average 3.4784397163120566) internal successors, (24523), 7050 states have internal predecessors, (24523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7051 states to 7051 states and 24523 transitions. [2022-01-18 07:44:38,011 INFO L78 Accepts]: Start accepts. Automaton has 7051 states and 24523 transitions. Word has length 39 [2022-01-18 07:44:38,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:38,012 INFO L470 AbstractCegarLoop]: Abstraction has 7051 states and 24523 transitions. [2022-01-18 07:44:38,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:38,012 INFO L276 IsEmpty]: Start isEmpty. Operand 7051 states and 24523 transitions. [2022-01-18 07:44:38,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:38,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:38,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:38,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-01-18 07:44:38,022 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:38,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:38,022 INFO L85 PathProgramCache]: Analyzing trace with hash -638992132, now seen corresponding path program 204 times [2022-01-18 07:44:38,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:38,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283480112] [2022-01-18 07:44:38,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:38,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:38,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:38,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:38,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283480112] [2022-01-18 07:44:38,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283480112] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:38,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:38,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:38,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949607646] [2022-01-18 07:44:38,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:38,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:38,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:38,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:38,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:38,226 INFO L87 Difference]: Start difference. First operand 7051 states and 24523 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:39,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:39,472 INFO L93 Difference]: Finished difference Result 9246 states and 32034 transitions. [2022-01-18 07:44:39,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 07:44:39,472 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:39,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:39,491 INFO L225 Difference]: With dead ends: 9246 [2022-01-18 07:44:39,491 INFO L226 Difference]: Without dead ends: 9123 [2022-01-18 07:44:39,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=2124, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 07:44:39,492 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 341 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 2440 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:39,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 1950 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2440 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:44:39,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9123 states. [2022-01-18 07:44:39,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9123 to 7019. [2022-01-18 07:44:39,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 3.480051296665717) internal successors, (24423), 7018 states have internal predecessors, (24423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:39,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 24423 transitions. [2022-01-18 07:44:39,604 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 24423 transitions. Word has length 39 [2022-01-18 07:44:39,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:39,604 INFO L470 AbstractCegarLoop]: Abstraction has 7019 states and 24423 transitions. [2022-01-18 07:44:39,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:39,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 24423 transitions. [2022-01-18 07:44:39,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:39,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:39,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:39,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-01-18 07:44:39,615 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:39,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:39,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1141454530, now seen corresponding path program 205 times [2022-01-18 07:44:39,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:39,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303702706] [2022-01-18 07:44:39,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:39,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:39,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:39,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:39,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303702706] [2022-01-18 07:44:39,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303702706] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:39,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:39,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:39,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222256696] [2022-01-18 07:44:39,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:39,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:39,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:39,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:39,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:39,821 INFO L87 Difference]: Start difference. First operand 7019 states and 24423 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:41,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:41,110 INFO L93 Difference]: Finished difference Result 9306 states and 32141 transitions. [2022-01-18 07:44:41,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 07:44:41,110 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:41,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:41,129 INFO L225 Difference]: With dead ends: 9306 [2022-01-18 07:44:41,160 INFO L226 Difference]: Without dead ends: 9243 [2022-01-18 07:44:41,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=2124, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 07:44:41,160 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 361 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:41,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1910 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:41,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9243 states. [2022-01-18 07:44:41,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9243 to 7019. [2022-01-18 07:44:41,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 3.479481333713309) internal successors, (24419), 7018 states have internal predecessors, (24419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:41,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 24419 transitions. [2022-01-18 07:44:41,261 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 24419 transitions. Word has length 39 [2022-01-18 07:44:41,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:41,261 INFO L470 AbstractCegarLoop]: Abstraction has 7019 states and 24419 transitions. [2022-01-18 07:44:41,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:41,262 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 24419 transitions. [2022-01-18 07:44:41,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:41,272 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:41,272 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] [2022-01-18 07:44:41,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-01-18 07:44:41,272 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:41,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:41,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1386946628, now seen corresponding path program 206 times [2022-01-18 07:44:41,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:41,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520997760] [2022-01-18 07:44:41,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:41,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:41,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:41,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:41,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520997760] [2022-01-18 07:44:41,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520997760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:41,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:41,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:41,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969806581] [2022-01-18 07:44:41,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:41,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:41,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:41,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:41,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:41,481 INFO L87 Difference]: Start difference. First operand 7019 states and 24419 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:42,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:42,728 INFO L93 Difference]: Finished difference Result 9282 states and 32081 transitions. [2022-01-18 07:44:42,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 07:44:42,729 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:42,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:42,747 INFO L225 Difference]: With dead ends: 9282 [2022-01-18 07:44:42,747 INFO L226 Difference]: Without dead ends: 9239 [2022-01-18 07:44:42,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=2041, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 07:44:42,748 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 372 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 2507 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:42,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 1875 Invalid, 2542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2507 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:44:42,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9239 states. [2022-01-18 07:44:42,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9239 to 7025. [2022-01-18 07:44:42,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 7024 states have (on average 3.478359908883827) internal successors, (24432), 7024 states have internal predecessors, (24432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:42,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 24432 transitions. [2022-01-18 07:44:42,856 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 24432 transitions. Word has length 39 [2022-01-18 07:44:42,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:42,856 INFO L470 AbstractCegarLoop]: Abstraction has 7025 states and 24432 transitions. [2022-01-18 07:44:42,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:42,856 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 24432 transitions. [2022-01-18 07:44:42,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:42,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:42,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:42,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-01-18 07:44:42,867 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:42,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:42,867 INFO L85 PathProgramCache]: Analyzing trace with hash -557415458, now seen corresponding path program 207 times [2022-01-18 07:44:42,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:42,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267832333] [2022-01-18 07:44:42,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:42,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:43,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:43,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:43,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267832333] [2022-01-18 07:44:43,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267832333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:43,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:43,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:43,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109998179] [2022-01-18 07:44:43,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:43,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:43,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:43,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:43,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:43,072 INFO L87 Difference]: Start difference. First operand 7025 states and 24432 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:44,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:44,322 INFO L93 Difference]: Finished difference Result 9237 states and 31977 transitions. [2022-01-18 07:44:44,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-18 07:44:44,322 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:44,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:44,341 INFO L225 Difference]: With dead ends: 9237 [2022-01-18 07:44:44,341 INFO L226 Difference]: Without dead ends: 9174 [2022-01-18 07:44:44,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2022-01-18 07:44:44,342 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 350 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 2536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:44,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1873 Invalid, 2536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:44,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9174 states. [2022-01-18 07:44:44,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9174 to 7007. [2022-01-18 07:44:44,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 7006 states have (on average 3.4811590065658007) internal successors, (24389), 7006 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:44,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 24389 transitions. [2022-01-18 07:44:44,483 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 24389 transitions. Word has length 39 [2022-01-18 07:44:44,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:44,483 INFO L470 AbstractCegarLoop]: Abstraction has 7007 states and 24389 transitions. [2022-01-18 07:44:44,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:44,483 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 24389 transitions. [2022-01-18 07:44:44,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:44,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:44,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:44,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-01-18 07:44:44,493 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:44,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:44,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1724316030, now seen corresponding path program 208 times [2022-01-18 07:44:44,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:44,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77456770] [2022-01-18 07:44:44,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:44,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:44,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:44,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77456770] [2022-01-18 07:44:44,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77456770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:44,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:44,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:44,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99073746] [2022-01-18 07:44:44,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:44,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:44,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:44,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:44,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:44,696 INFO L87 Difference]: Start difference. First operand 7007 states and 24389 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:46,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:46,029 INFO L93 Difference]: Finished difference Result 9300 states and 32134 transitions. [2022-01-18 07:44:46,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 07:44:46,029 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 [2022-01-18 07:44:46,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:46,048 INFO L225 Difference]: With dead ends: 9300 [2022-01-18 07:44:46,049 INFO L226 Difference]: Without dead ends: 9245 [2022-01-18 07:44:46,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 07:44:46,049 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 386 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2536 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:46,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1873 Invalid, 2584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:46,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9245 states. [2022-01-18 07:44:46,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9245 to 7009. [2022-01-18 07:44:46,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7009 states, 7008 states have (on average 3.4808789954337898) internal successors, (24394), 7008 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:46,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7009 states to 7009 states and 24394 transitions. [2022-01-18 07:44:46,163 INFO L78 Accepts]: Start accepts. Automaton has 7009 states and 24394 transitions. Word has length 39 [2022-01-18 07:44:46,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:46,163 INFO L470 AbstractCegarLoop]: Abstraction has 7009 states and 24394 transitions. [2022-01-18 07:44:46,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:46,163 INFO L276 IsEmpty]: Start isEmpty. Operand 7009 states and 24394 transitions. [2022-01-18 07:44:46,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:46,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:46,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:46,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-01-18 07:44:46,173 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:46,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:46,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1233593252, now seen corresponding path program 209 times [2022-01-18 07:44:46,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:46,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617141524] [2022-01-18 07:44:46,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:46,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:46,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:46,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:46,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617141524] [2022-01-18 07:44:46,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617141524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:46,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:46,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:46,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796975941] [2022-01-18 07:44:46,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:46,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:46,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:46,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:46,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:46,382 INFO L87 Difference]: Start difference. First operand 7009 states and 24394 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:47,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:47,700 INFO L93 Difference]: Finished difference Result 9276 states and 32064 transitions. [2022-01-18 07:44:47,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 07:44:47,700 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:47,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:47,720 INFO L225 Difference]: With dead ends: 9276 [2022-01-18 07:44:47,720 INFO L226 Difference]: Without dead ends: 9233 [2022-01-18 07:44:47,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=231, Invalid=2219, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 07:44:47,721 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 376 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:47,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 1856 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:47,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9233 states. [2022-01-18 07:44:47,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9233 to 7015. [2022-01-18 07:44:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7015 states, 7014 states have (on average 3.4797547761619616) internal successors, (24407), 7014 states have internal predecessors, (24407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:47,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7015 states to 7015 states and 24407 transitions. [2022-01-18 07:44:47,836 INFO L78 Accepts]: Start accepts. Automaton has 7015 states and 24407 transitions. Word has length 39 [2022-01-18 07:44:47,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:47,836 INFO L470 AbstractCegarLoop]: Abstraction has 7015 states and 24407 transitions. [2022-01-18 07:44:47,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:47,837 INFO L276 IsEmpty]: Start isEmpty. Operand 7015 states and 24407 transitions. [2022-01-18 07:44:47,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:47,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:47,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:47,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-01-18 07:44:47,848 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:47,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:47,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1505012802, now seen corresponding path program 210 times [2022-01-18 07:44:47,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:47,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818620438] [2022-01-18 07:44:47,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:47,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:48,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:48,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:48,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818620438] [2022-01-18 07:44:48,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818620438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:48,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:48,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:48,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672666309] [2022-01-18 07:44:48,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:48,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:48,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:48,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:48,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:48,071 INFO L87 Difference]: Start difference. First operand 7015 states and 24407 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:49,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:49,340 INFO L93 Difference]: Finished difference Result 9231 states and 31960 transitions. [2022-01-18 07:44:49,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 07:44:49,340 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:49,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:49,359 INFO L225 Difference]: With dead ends: 9231 [2022-01-18 07:44:49,359 INFO L226 Difference]: Without dead ends: 9170 [2022-01-18 07:44:49,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=2041, Unknown=0, NotChecked=0, Total=2256 [2022-01-18 07:44:49,359 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 351 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:49,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 1844 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2486 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:49,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9170 states. [2022-01-18 07:44:49,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9170 to 7003. [2022-01-18 07:44:49,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7003 states, 7002 states have (on average 3.4817195087117967) internal successors, (24379), 7002 states have internal predecessors, (24379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:49,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 24379 transitions. [2022-01-18 07:44:49,468 INFO L78 Accepts]: Start accepts. Automaton has 7003 states and 24379 transitions. Word has length 39 [2022-01-18 07:44:49,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:49,468 INFO L470 AbstractCegarLoop]: Abstraction has 7003 states and 24379 transitions. [2022-01-18 07:44:49,468 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) [2022-01-18 07:44:49,468 INFO L276 IsEmpty]: Start isEmpty. Operand 7003 states and 24379 transitions. [2022-01-18 07:44:49,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:49,478 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:49,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:49,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-01-18 07:44:49,478 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:49,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:49,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1994417988, now seen corresponding path program 211 times [2022-01-18 07:44:49,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:49,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738712597] [2022-01-18 07:44:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:49,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:49,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:49,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:49,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738712597] [2022-01-18 07:44:49,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738712597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:49,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:49,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:49,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995386888] [2022-01-18 07:44:49,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:49,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:49,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:49,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:49,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:49,680 INFO L87 Difference]: Start difference. First operand 7003 states and 24379 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:50,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:50,962 INFO L93 Difference]: Finished difference Result 9226 states and 31982 transitions. [2022-01-18 07:44:50,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 07:44:50,962 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 [2022-01-18 07:44:50,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:50,980 INFO L225 Difference]: With dead ends: 9226 [2022-01-18 07:44:50,980 INFO L226 Difference]: Without dead ends: 9135 [2022-01-18 07:44:50,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=236, Invalid=2214, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 07:44:50,981 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 357 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 2499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:50,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 1957 Invalid, 2499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2458 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:44:50,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9135 states. [2022-01-18 07:44:51,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9135 to 7009. [2022-01-18 07:44:51,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7009 states, 7008 states have (on average 3.4808789954337898) internal successors, (24394), 7008 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:51,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7009 states to 7009 states and 24394 transitions. [2022-01-18 07:44:51,088 INFO L78 Accepts]: Start accepts. Automaton has 7009 states and 24394 transitions. Word has length 39 [2022-01-18 07:44:51,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:51,088 INFO L470 AbstractCegarLoop]: Abstraction has 7009 states and 24394 transitions. [2022-01-18 07:44:51,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:51,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7009 states and 24394 transitions. [2022-01-18 07:44:51,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:51,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:51,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:51,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-01-18 07:44:51,098 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:51,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:51,098 INFO L85 PathProgramCache]: Analyzing trace with hash -703873570, now seen corresponding path program 212 times [2022-01-18 07:44:51,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:51,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125973698] [2022-01-18 07:44:51,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:51,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:51,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:51,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125973698] [2022-01-18 07:44:51,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125973698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:51,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:51,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:51,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403840575] [2022-01-18 07:44:51,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:51,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:51,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:51,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:51,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:51,302 INFO L87 Difference]: Start difference. First operand 7009 states and 24394 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:52,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:52,660 INFO L93 Difference]: Finished difference Result 9257 states and 32029 transitions. [2022-01-18 07:44:52,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 07:44:52,660 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 [2022-01-18 07:44:52,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:52,678 INFO L225 Difference]: With dead ends: 9257 [2022-01-18 07:44:52,679 INFO L226 Difference]: Without dead ends: 9202 [2022-01-18 07:44:52,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 07:44:52,679 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 374 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 2490 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:52,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 1913 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2490 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:52,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9202 states. [2022-01-18 07:44:52,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9202 to 7011. [2022-01-18 07:44:52,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7011 states, 7010 states have (on average 3.480599144079886) internal successors, (24399), 7010 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:52,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7011 states to 7011 states and 24399 transitions. [2022-01-18 07:44:52,787 INFO L78 Accepts]: Start accepts. Automaton has 7011 states and 24399 transitions. Word has length 39 [2022-01-18 07:44:52,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:52,787 INFO L470 AbstractCegarLoop]: Abstraction has 7011 states and 24399 transitions. [2022-01-18 07:44:52,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:52,787 INFO L276 IsEmpty]: Start isEmpty. Operand 7011 states and 24399 transitions. [2022-01-18 07:44:52,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:52,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:52,797 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] [2022-01-18 07:44:52,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-01-18 07:44:52,797 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:52,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:52,798 INFO L85 PathProgramCache]: Analyzing trace with hash 633184444, now seen corresponding path program 213 times [2022-01-18 07:44:52,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:52,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075531397] [2022-01-18 07:44:52,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:52,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:53,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:53,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:53,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075531397] [2022-01-18 07:44:53,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075531397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:53,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:53,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:53,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308656870] [2022-01-18 07:44:53,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:53,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:53,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:53,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:53,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:53,001 INFO L87 Difference]: Start difference. First operand 7011 states and 24399 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:54,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:54,263 INFO L93 Difference]: Finished difference Result 9233 states and 31959 transitions. [2022-01-18 07:44:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 07:44:54,263 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:54,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:54,282 INFO L225 Difference]: With dead ends: 9233 [2022-01-18 07:44:54,282 INFO L226 Difference]: Without dead ends: 9190 [2022-01-18 07:44:54,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=229, Invalid=2221, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 07:44:54,283 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 364 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 2475 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:54,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 1943 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2475 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:44:54,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9190 states. [2022-01-18 07:44:54,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9190 to 7017. [2022-01-18 07:44:54,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7017 states, 7016 states have (on average 3.4794754846066134) internal successors, (24412), 7016 states have internal predecessors, (24412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:54,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7017 states to 7017 states and 24412 transitions. [2022-01-18 07:44:54,391 INFO L78 Accepts]: Start accepts. Automaton has 7017 states and 24412 transitions. Word has length 39 [2022-01-18 07:44:54,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:54,391 INFO L470 AbstractCegarLoop]: Abstraction has 7017 states and 24412 transitions. [2022-01-18 07:44:54,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:54,391 INFO L276 IsEmpty]: Start isEmpty. Operand 7017 states and 24412 transitions. [2022-01-18 07:44:54,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:54,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:54,402 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] [2022-01-18 07:44:54,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-01-18 07:44:54,402 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:54,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:54,402 INFO L85 PathProgramCache]: Analyzing trace with hash 361764894, now seen corresponding path program 214 times [2022-01-18 07:44:54,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:54,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563137213] [2022-01-18 07:44:54,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:54,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:54,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:54,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:54,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563137213] [2022-01-18 07:44:54,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563137213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:54,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:54,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:54,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708140869] [2022-01-18 07:44:54,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:54,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:54,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:54,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:54,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:54,611 INFO L87 Difference]: Start difference. First operand 7017 states and 24412 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:55,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:55,927 INFO L93 Difference]: Finished difference Result 9188 states and 31855 transitions. [2022-01-18 07:44:55,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 07:44:55,927 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 [2022-01-18 07:44:55,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:55,944 INFO L225 Difference]: With dead ends: 9188 [2022-01-18 07:44:55,944 INFO L226 Difference]: Without dead ends: 9097 [2022-01-18 07:44:55,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=229, Invalid=2221, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 07:44:55,944 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 350 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2458 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 2497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:55,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 1928 Invalid, 2497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2458 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:55,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9097 states. [2022-01-18 07:44:56,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9097 to 6987. [2022-01-18 07:44:56,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6986 states have (on average 3.4836816490123104) internal successors, (24337), 6986 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:56,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 24337 transitions. [2022-01-18 07:44:56,046 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 24337 transitions. Word has length 39 [2022-01-18 07:44:56,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:56,046 INFO L470 AbstractCegarLoop]: Abstraction has 6987 states and 24337 transitions. [2022-01-18 07:44:56,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 24337 transitions. [2022-01-18 07:44:56,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:56,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:56,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:56,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-01-18 07:44:56,056 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:56,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:56,057 INFO L85 PathProgramCache]: Analyzing trace with hash -364286452, now seen corresponding path program 215 times [2022-01-18 07:44:56,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:56,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351048628] [2022-01-18 07:44:56,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:56,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:56,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:56,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351048628] [2022-01-18 07:44:56,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351048628] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:56,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:56,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:56,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140191032] [2022-01-18 07:44:56,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:56,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:56,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:56,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:56,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:56,255 INFO L87 Difference]: Start difference. First operand 6987 states and 24337 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:57,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:57,798 INFO L93 Difference]: Finished difference Result 9481 states and 32641 transitions. [2022-01-18 07:44:57,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 07:44:57,798 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:44:57,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:57,817 INFO L225 Difference]: With dead ends: 9481 [2022-01-18 07:44:57,817 INFO L226 Difference]: Without dead ends: 9426 [2022-01-18 07:44:57,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=345, Invalid=3315, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 07:44:57,817 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 463 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:57,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 1967 Invalid, 2682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:44:57,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9426 states. [2022-01-18 07:44:57,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9426 to 6998. [2022-01-18 07:44:57,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6998 states, 6997 states have (on average 3.4833500071459196) internal successors, (24373), 6997 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:57,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6998 states to 6998 states and 24373 transitions. [2022-01-18 07:44:57,931 INFO L78 Accepts]: Start accepts. Automaton has 6998 states and 24373 transitions. Word has length 39 [2022-01-18 07:44:57,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:44:57,931 INFO L470 AbstractCegarLoop]: Abstraction has 6998 states and 24373 transitions. [2022-01-18 07:44:57,931 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) [2022-01-18 07:44:57,931 INFO L276 IsEmpty]: Start isEmpty. Operand 6998 states and 24373 transitions. [2022-01-18 07:44:57,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:44:57,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:44:57,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:44:57,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-01-18 07:44:57,943 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:44:57,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:44:57,943 INFO L85 PathProgramCache]: Analyzing trace with hash 808365770, now seen corresponding path program 216 times [2022-01-18 07:44:57,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:44:57,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238974829] [2022-01-18 07:44:57,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:44:57,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:44:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:44:58,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:44:58,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:44:58,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238974829] [2022-01-18 07:44:58,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238974829] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:44:58,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:44:58,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:44:58,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993356835] [2022-01-18 07:44:58,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:44:58,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:44:58,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:44:58,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:44:58,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:44:58,145 INFO L87 Difference]: Start difference. First operand 6998 states and 24373 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:44:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:44:59,962 INFO L93 Difference]: Finished difference Result 10730 states and 36770 transitions. [2022-01-18 07:44:59,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 07:44:59,962 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 [2022-01-18 07:44:59,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:44:59,983 INFO L225 Difference]: With dead ends: 10730 [2022-01-18 07:44:59,983 INFO L226 Difference]: Without dead ends: 10607 [2022-01-18 07:44:59,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=390, Invalid=4032, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 07:44:59,984 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 473 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 2971 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 3045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:44:59,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [473 Valid, 2401 Invalid, 3045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2971 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:44:59,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10607 states. [2022-01-18 07:45:00,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10607 to 7002. [2022-01-18 07:45:00,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.4836451935437793) internal successors, (24389), 7001 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:00,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24389 transitions. [2022-01-18 07:45:00,100 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24389 transitions. Word has length 39 [2022-01-18 07:45:00,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:00,101 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24389 transitions. [2022-01-18 07:45:00,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:00,101 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24389 transitions. [2022-01-18 07:45:00,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:00,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:00,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:00,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-01-18 07:45:00,112 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:00,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:00,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1069037832, now seen corresponding path program 217 times [2022-01-18 07:45:00,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:00,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049317921] [2022-01-18 07:45:00,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:00,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:00,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:00,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:00,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049317921] [2022-01-18 07:45:00,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049317921] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:00,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:00,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:00,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775955172] [2022-01-18 07:45:00,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:00,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:00,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:00,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:00,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:00,312 INFO L87 Difference]: Start difference. First operand 7002 states and 24389 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:01,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:01,862 INFO L93 Difference]: Finished difference Result 9406 states and 32467 transitions. [2022-01-18 07:45:01,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 07:45:01,862 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:01,882 INFO L225 Difference]: With dead ends: 9406 [2022-01-18 07:45:01,882 INFO L226 Difference]: Without dead ends: 9315 [2022-01-18 07:45:01,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 826 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=318, Invalid=3104, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 07:45:01,883 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 447 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 2585 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:01,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 2023 Invalid, 2660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2585 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:45:01,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9315 states. [2022-01-18 07:45:01,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9315 to 7008. [2022-01-18 07:45:01,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 7007 states have (on average 3.4819466248037676) internal successors, (24398), 7007 states have internal predecessors, (24398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:01,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 24398 transitions. [2022-01-18 07:45:01,998 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 24398 transitions. Word has length 39 [2022-01-18 07:45:01,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:01,998 INFO L470 AbstractCegarLoop]: Abstraction has 7008 states and 24398 transitions. [2022-01-18 07:45:01,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:01,998 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 24398 transitions. [2022-01-18 07:45:02,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:02,009 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:02,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:02,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-01-18 07:45:02,009 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:02,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:02,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1723447258, now seen corresponding path program 218 times [2022-01-18 07:45:02,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:02,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72492168] [2022-01-18 07:45:02,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:02,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:02,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:02,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:02,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72492168] [2022-01-18 07:45:02,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72492168] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:02,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:02,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:02,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075785857] [2022-01-18 07:45:02,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:02,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:02,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:02,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:02,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:02,223 INFO L87 Difference]: Start difference. First operand 7008 states and 24398 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:04,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:04,008 INFO L93 Difference]: Finished difference Result 10679 states and 36750 transitions. [2022-01-18 07:45:04,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-01-18 07:45:04,008 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:04,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:04,028 INFO L225 Difference]: With dead ends: 10679 [2022-01-18 07:45:04,028 INFO L226 Difference]: Without dead ends: 10579 [2022-01-18 07:45:04,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=353, Invalid=3679, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 07:45:04,028 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 447 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 3091 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:04,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 2515 Invalid, 3165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3091 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:45:04,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2022-01-18 07:45:04,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 7002. [2022-01-18 07:45:04,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.4817883159548635) internal successors, (24376), 7001 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:04,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24376 transitions. [2022-01-18 07:45:04,143 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24376 transitions. Word has length 39 [2022-01-18 07:45:04,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:04,143 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24376 transitions. [2022-01-18 07:45:04,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:04,143 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24376 transitions. [2022-01-18 07:45:04,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:04,153 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:04,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:04,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-01-18 07:45:04,154 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:04,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:04,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1396649298, now seen corresponding path program 219 times [2022-01-18 07:45:04,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:04,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487974172] [2022-01-18 07:45:04,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:04,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:04,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:04,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:04,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487974172] [2022-01-18 07:45:04,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487974172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:04,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:04,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:04,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931563425] [2022-01-18 07:45:04,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:04,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:04,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:04,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:04,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:04,365 INFO L87 Difference]: Start difference. First operand 7002 states and 24376 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:06,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:06,034 INFO L93 Difference]: Finished difference Result 9391 states and 32328 transitions. [2022-01-18 07:45:06,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 07:45:06,034 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 [2022-01-18 07:45:06,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:06,053 INFO L225 Difference]: With dead ends: 9391 [2022-01-18 07:45:06,053 INFO L226 Difference]: Without dead ends: 9336 [2022-01-18 07:45:06,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1043 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=367, Invalid=3665, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 07:45:06,054 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 442 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 2672 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:06,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 1925 Invalid, 2758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2672 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:45:06,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9336 states. [2022-01-18 07:45:06,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9336 to 7007. [2022-01-18 07:45:06,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 7006 states have (on average 3.4810162717670567) internal successors, (24388), 7006 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:06,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 24388 transitions. [2022-01-18 07:45:06,168 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 24388 transitions. Word has length 39 [2022-01-18 07:45:06,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:06,168 INFO L470 AbstractCegarLoop]: Abstraction has 7007 states and 24388 transitions. [2022-01-18 07:45:06,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:06,168 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 24388 transitions. [2022-01-18 07:45:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:06,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:06,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:06,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-01-18 07:45:06,179 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:06,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:06,179 INFO L85 PathProgramCache]: Analyzing trace with hash -223997076, now seen corresponding path program 220 times [2022-01-18 07:45:06,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:06,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652574811] [2022-01-18 07:45:06,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:06,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:06,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:06,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:06,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652574811] [2022-01-18 07:45:06,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652574811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:06,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:06,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:06,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343679991] [2022-01-18 07:45:06,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:06,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:06,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:06,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:06,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:06,384 INFO L87 Difference]: Start difference. First operand 7007 states and 24388 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:08,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:08,267 INFO L93 Difference]: Finished difference Result 10532 states and 36209 transitions. [2022-01-18 07:45:08,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-18 07:45:08,267 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:08,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:08,288 INFO L225 Difference]: With dead ends: 10532 [2022-01-18 07:45:08,288 INFO L226 Difference]: Without dead ends: 10472 [2022-01-18 07:45:08,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=392, Invalid=4030, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 07:45:08,289 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 443 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 2999 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 3074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:08,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 2305 Invalid, 3074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2999 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:45:08,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10472 states. [2022-01-18 07:45:08,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10472 to 7007. [2022-01-18 07:45:08,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7007 states, 7006 states have (on average 3.4811590065658007) internal successors, (24389), 7006 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:08,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7007 states to 7007 states and 24389 transitions. [2022-01-18 07:45:08,406 INFO L78 Accepts]: Start accepts. Automaton has 7007 states and 24389 transitions. Word has length 39 [2022-01-18 07:45:08,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:08,406 INFO L470 AbstractCegarLoop]: Abstraction has 7007 states and 24389 transitions. [2022-01-18 07:45:08,406 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) [2022-01-18 07:45:08,406 INFO L276 IsEmpty]: Start isEmpty. Operand 7007 states and 24389 transitions. [2022-01-18 07:45:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:08,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:08,416 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] [2022-01-18 07:45:08,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-01-18 07:45:08,416 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:08,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:08,417 INFO L85 PathProgramCache]: Analyzing trace with hash -291741956, now seen corresponding path program 221 times [2022-01-18 07:45:08,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:08,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835702559] [2022-01-18 07:45:08,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:08,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:08,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:08,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835702559] [2022-01-18 07:45:08,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835702559] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:08,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:08,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:08,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732545441] [2022-01-18 07:45:08,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:08,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:08,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:08,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:08,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:08,616 INFO L87 Difference]: Start difference. First operand 7007 states and 24389 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:10,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:10,185 INFO L93 Difference]: Finished difference Result 9320 states and 32148 transitions. [2022-01-18 07:45:10,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 07:45:10,185 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:10,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:10,205 INFO L225 Difference]: With dead ends: 9320 [2022-01-18 07:45:10,205 INFO L226 Difference]: Without dead ends: 9277 [2022-01-18 07:45:10,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=311, Invalid=3111, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 07:45:10,205 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 423 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:10,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 1916 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:45:10,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9277 states. [2022-01-18 07:45:10,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9277 to 7016. [2022-01-18 07:45:10,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 7015 states have (on average 3.479686386315039) internal successors, (24410), 7015 states have internal predecessors, (24410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:10,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 24410 transitions. [2022-01-18 07:45:10,318 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 24410 transitions. Word has length 39 [2022-01-18 07:45:10,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:10,318 INFO L470 AbstractCegarLoop]: Abstraction has 7016 states and 24410 transitions. [2022-01-18 07:45:10,318 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) [2022-01-18 07:45:10,318 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 24410 transitions. [2022-01-18 07:45:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:10,329 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:10,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:10,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-01-18 07:45:10,329 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:10,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:10,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1458365180, now seen corresponding path program 222 times [2022-01-18 07:45:10,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:10,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387831521] [2022-01-18 07:45:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:10,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:10,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:10,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:10,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387831521] [2022-01-18 07:45:10,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387831521] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:10,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:10,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:10,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188188667] [2022-01-18 07:45:10,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:10,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:10,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:10,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:10,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:10,531 INFO L87 Difference]: Start difference. First operand 7016 states and 24410 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:11,962 INFO L93 Difference]: Finished difference Result 9308 states and 32114 transitions. [2022-01-18 07:45:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 07:45:11,962 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 [2022-01-18 07:45:11,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:11,981 INFO L225 Difference]: With dead ends: 9308 [2022-01-18 07:45:11,981 INFO L226 Difference]: Without dead ends: 9257 [2022-01-18 07:45:11,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=280, Invalid=2690, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 07:45:11,982 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 399 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 2638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:11,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1796 Invalid, 2638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:45:11,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9257 states. [2022-01-18 07:45:12,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9257 to 7016. [2022-01-18 07:45:12,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 7015 states have (on average 3.4792587312900927) internal successors, (24407), 7015 states have internal predecessors, (24407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:12,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 24407 transitions. [2022-01-18 07:45:12,087 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 24407 transitions. Word has length 39 [2022-01-18 07:45:12,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:12,087 INFO L470 AbstractCegarLoop]: Abstraction has 7016 states and 24407 transitions. [2022-01-18 07:45:12,087 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) [2022-01-18 07:45:12,087 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 24407 transitions. [2022-01-18 07:45:12,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:12,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:12,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:12,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-01-18 07:45:12,098 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:12,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:12,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2075583582, now seen corresponding path program 223 times [2022-01-18 07:45:12,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:12,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004805108] [2022-01-18 07:45:12,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:12,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:12,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:12,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:12,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004805108] [2022-01-18 07:45:12,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004805108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:12,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:12,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:12,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960610157] [2022-01-18 07:45:12,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:12,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:12,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:12,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:12,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:12,306 INFO L87 Difference]: Start difference. First operand 7016 states and 24407 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:14,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:14,151 INFO L93 Difference]: Finished difference Result 10505 states and 36124 transitions. [2022-01-18 07:45:14,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-18 07:45:14,151 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:14,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:14,173 INFO L225 Difference]: With dead ends: 10505 [2022-01-18 07:45:14,173 INFO L226 Difference]: Without dead ends: 10459 [2022-01-18 07:45:14,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1025 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=353, Invalid=3679, Unknown=0, NotChecked=0, Total=4032 [2022-01-18 07:45:14,174 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 432 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 3031 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 3095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:14,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 2295 Invalid, 3095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3031 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:45:14,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10459 states. [2022-01-18 07:45:14,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10459 to 7023. [2022-01-18 07:45:14,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7023 states, 7022 states have (on average 3.4779265166619195) internal successors, (24422), 7022 states have internal predecessors, (24422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:14,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 24422 transitions. [2022-01-18 07:45:14,295 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 24422 transitions. Word has length 39 [2022-01-18 07:45:14,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:14,295 INFO L470 AbstractCegarLoop]: Abstraction has 7023 states and 24422 transitions. [2022-01-18 07:45:14,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:14,295 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 24422 transitions. [2022-01-18 07:45:14,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:14,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:14,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:14,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-01-18 07:45:14,306 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:14,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:14,306 INFO L85 PathProgramCache]: Analyzing trace with hash 640516092, now seen corresponding path program 224 times [2022-01-18 07:45:14,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:14,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882898284] [2022-01-18 07:45:14,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:14,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:14,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:14,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:14,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882898284] [2022-01-18 07:45:14,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882898284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:14,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:14,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:14,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137989388] [2022-01-18 07:45:14,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:14,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:14,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:14,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:14,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:14,508 INFO L87 Difference]: Start difference. First operand 7023 states and 24422 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:15,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:15,926 INFO L93 Difference]: Finished difference Result 9294 states and 32067 transitions. [2022-01-18 07:45:15,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 07:45:15,926 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:15,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:15,945 INFO L225 Difference]: With dead ends: 9294 [2022-01-18 07:45:15,945 INFO L226 Difference]: Without dead ends: 9239 [2022-01-18 07:45:15,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=280, Invalid=2690, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 07:45:15,946 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 410 mSDsluCounter, 1941 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 2602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:15,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 1778 Invalid, 2602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2547 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:45:15,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9239 states. [2022-01-18 07:45:16,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9239 to 7020. [2022-01-18 07:45:16,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7020 states, 7019 states have (on average 3.4785581991736714) internal successors, (24416), 7019 states have internal predecessors, (24416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:16,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7020 states to 7020 states and 24416 transitions. [2022-01-18 07:45:16,060 INFO L78 Accepts]: Start accepts. Automaton has 7020 states and 24416 transitions. Word has length 39 [2022-01-18 07:45:16,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:16,060 INFO L470 AbstractCegarLoop]: Abstraction has 7020 states and 24416 transitions. [2022-01-18 07:45:16,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 7020 states and 24416 transitions. [2022-01-18 07:45:16,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:16,071 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:16,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:16,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-01-18 07:45:16,071 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:16,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:16,071 INFO L85 PathProgramCache]: Analyzing trace with hash -642187026, now seen corresponding path program 225 times [2022-01-18 07:45:16,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:16,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359913115] [2022-01-18 07:45:16,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:16,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:16,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:16,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:16,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359913115] [2022-01-18 07:45:16,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359913115] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:16,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:16,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:16,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409575539] [2022-01-18 07:45:16,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:16,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:16,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:16,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:16,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:16,279 INFO L87 Difference]: Start difference. First operand 7020 states and 24416 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:17,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:17,792 INFO L93 Difference]: Finished difference Result 9347 states and 32183 transitions. [2022-01-18 07:45:17,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 07:45:17,793 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 [2022-01-18 07:45:17,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:17,812 INFO L225 Difference]: With dead ends: 9347 [2022-01-18 07:45:17,813 INFO L226 Difference]: Without dead ends: 9290 [2022-01-18 07:45:17,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=299, Invalid=2893, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 07:45:17,813 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 414 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 2576 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:17,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 1800 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2576 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:45:17,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9290 states. [2022-01-18 07:45:17,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9290 to 7020. [2022-01-18 07:45:17,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7020 states, 7019 states have (on average 3.4784157287362873) internal successors, (24415), 7019 states have internal predecessors, (24415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:17,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7020 states to 7020 states and 24415 transitions. [2022-01-18 07:45:17,931 INFO L78 Accepts]: Start accepts. Automaton has 7020 states and 24415 transitions. Word has length 39 [2022-01-18 07:45:17,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:17,931 INFO L470 AbstractCegarLoop]: Abstraction has 7020 states and 24415 transitions. [2022-01-18 07:45:17,931 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) [2022-01-18 07:45:17,931 INFO L276 IsEmpty]: Start isEmpty. Operand 7020 states and 24415 transitions. [2022-01-18 07:45:17,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:17,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:17,941 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] [2022-01-18 07:45:17,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-01-18 07:45:17,941 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:17,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:17,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1935302090, now seen corresponding path program 226 times [2022-01-18 07:45:17,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:17,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776890722] [2022-01-18 07:45:17,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:17,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:18,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:18,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:18,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776890722] [2022-01-18 07:45:18,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776890722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:18,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:18,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:18,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965982675] [2022-01-18 07:45:18,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:18,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:18,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:18,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:18,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:18,142 INFO L87 Difference]: Start difference. First operand 7020 states and 24415 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:19,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:19,714 INFO L93 Difference]: Finished difference Result 9598 states and 33031 transitions. [2022-01-18 07:45:19,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 07:45:19,714 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:19,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:19,732 INFO L225 Difference]: With dead ends: 9598 [2022-01-18 07:45:19,732 INFO L226 Difference]: Without dead ends: 9539 [2022-01-18 07:45:19,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=316, Invalid=3106, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 07:45:19,733 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 427 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:19,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 1940 Invalid, 2756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:45:19,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9539 states. [2022-01-18 07:45:19,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9539 to 7019. [2022-01-18 07:45:19,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 7018 states have (on average 3.4786263892846967) internal successors, (24413), 7018 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 24413 transitions. [2022-01-18 07:45:19,836 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 24413 transitions. Word has length 39 [2022-01-18 07:45:19,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:19,836 INFO L470 AbstractCegarLoop]: Abstraction has 7019 states and 24413 transitions. [2022-01-18 07:45:19,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:19,836 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 24413 transitions. [2022-01-18 07:45:19,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:19,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:19,846 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] [2022-01-18 07:45:19,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-01-18 07:45:19,846 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:19,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:19,847 INFO L85 PathProgramCache]: Analyzing trace with hash 696569562, now seen corresponding path program 227 times [2022-01-18 07:45:19,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:19,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713199245] [2022-01-18 07:45:19,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:19,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:20,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:20,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:20,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713199245] [2022-01-18 07:45:20,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713199245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:20,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:20,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:20,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620133631] [2022-01-18 07:45:20,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:20,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:20,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:20,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:20,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:20,047 INFO L87 Difference]: Start difference. First operand 7019 states and 24413 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:21,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:21,488 INFO L93 Difference]: Finished difference Result 9294 states and 32083 transitions. [2022-01-18 07:45:21,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 07:45:21,488 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 [2022-01-18 07:45:21,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:21,507 INFO L225 Difference]: With dead ends: 9294 [2022-01-18 07:45:21,507 INFO L226 Difference]: Without dead ends: 9219 [2022-01-18 07:45:21,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=282, Invalid=2798, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 07:45:21,508 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 408 mSDsluCounter, 2065 mSDsCounter, 0 mSdLazyCounter, 2587 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:21,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 1934 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2587 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:45:21,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9219 states. [2022-01-18 07:45:21,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9219 to 7005. [2022-01-18 07:45:21,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7005 states, 7004 states have (on average 3.48043974871502) internal successors, (24377), 7004 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:21,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 24377 transitions. [2022-01-18 07:45:21,615 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 24377 transitions. Word has length 39 [2022-01-18 07:45:21,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:21,615 INFO L470 AbstractCegarLoop]: Abstraction has 7005 states and 24377 transitions. [2022-01-18 07:45:21,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:21,615 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 24377 transitions. [2022-01-18 07:45:21,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:21,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:21,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:21,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-01-18 07:45:21,626 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:21,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:21,626 INFO L85 PathProgramCache]: Analyzing trace with hash 860316378, now seen corresponding path program 228 times [2022-01-18 07:45:21,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:21,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119624920] [2022-01-18 07:45:21,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:21,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:21,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:21,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:21,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119624920] [2022-01-18 07:45:21,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119624920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:21,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:21,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:21,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306971728] [2022-01-18 07:45:21,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:21,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:21,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:21,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:21,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:21,826 INFO L87 Difference]: Start difference. First operand 7005 states and 24377 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:23,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:23,515 INFO L93 Difference]: Finished difference Result 9664 states and 33390 transitions. [2022-01-18 07:45:23,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 07:45:23,515 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:23,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:23,533 INFO L225 Difference]: With dead ends: 9664 [2022-01-18 07:45:23,533 INFO L226 Difference]: Without dead ends: 9569 [2022-01-18 07:45:23,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 905 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=327, Invalid=3333, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 07:45:23,534 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 412 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:23,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 2233 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:45:23,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2022-01-18 07:45:23,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 6979. [2022-01-18 07:45:23,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6979 states, 6978 states have (on average 3.483519633132703) internal successors, (24308), 6978 states have internal predecessors, (24308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:23,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6979 states to 6979 states and 24308 transitions. [2022-01-18 07:45:23,639 INFO L78 Accepts]: Start accepts. Automaton has 6979 states and 24308 transitions. Word has length 39 [2022-01-18 07:45:23,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:23,639 INFO L470 AbstractCegarLoop]: Abstraction has 6979 states and 24308 transitions. [2022-01-18 07:45:23,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:23,639 INFO L276 IsEmpty]: Start isEmpty. Operand 6979 states and 24308 transitions. [2022-01-18 07:45:23,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:23,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:23,650 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] [2022-01-18 07:45:23,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-01-18 07:45:23,650 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:23,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:23,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1307600068, now seen corresponding path program 229 times [2022-01-18 07:45:23,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:23,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729212574] [2022-01-18 07:45:23,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:23,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:23,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:23,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:23,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729212574] [2022-01-18 07:45:23,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729212574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:23,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:23,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:23,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908199489] [2022-01-18 07:45:23,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:23,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:23,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:23,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:23,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:23,851 INFO L87 Difference]: Start difference. First operand 6979 states and 24308 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:27,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:27,251 INFO L93 Difference]: Finished difference Result 12981 states and 44182 transitions. [2022-01-18 07:45:27,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-01-18 07:45:27,252 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:27,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:27,278 INFO L225 Difference]: With dead ends: 12981 [2022-01-18 07:45:27,279 INFO L226 Difference]: Without dead ends: 12875 [2022-01-18 07:45:27,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3575 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=739, Invalid=9973, Unknown=0, NotChecked=0, Total=10712 [2022-01-18 07:45:27,280 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 699 mSDsluCounter, 3844 mSDsCounter, 0 mSdLazyCounter, 5256 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 5386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 5256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:27,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 3814 Invalid, 5386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 5256 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 07:45:27,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12875 states. [2022-01-18 07:45:27,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12875 to 7021. [2022-01-18 07:45:27,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7021 states, 7020 states have (on average 3.4853276353276352) internal successors, (24467), 7020 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7021 states to 7021 states and 24467 transitions. [2022-01-18 07:45:27,448 INFO L78 Accepts]: Start accepts. Automaton has 7021 states and 24467 transitions. Word has length 39 [2022-01-18 07:45:27,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:27,448 INFO L470 AbstractCegarLoop]: Abstraction has 7021 states and 24467 transitions. [2022-01-18 07:45:27,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:27,448 INFO L276 IsEmpty]: Start isEmpty. Operand 7021 states and 24467 transitions. [2022-01-18 07:45:27,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:27,461 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:27,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:27,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-01-18 07:45:27,461 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:27,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:27,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1492476328, now seen corresponding path program 230 times [2022-01-18 07:45:27,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:27,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038505996] [2022-01-18 07:45:27,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:27,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:27,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:27,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:27,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038505996] [2022-01-18 07:45:27,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038505996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:27,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:27,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:27,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379162428] [2022-01-18 07:45:27,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:27,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:27,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:27,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:27,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:27,665 INFO L87 Difference]: Start difference. First operand 7021 states and 24467 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:29,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:29,618 INFO L93 Difference]: Finished difference Result 10377 states and 35684 transitions. [2022-01-18 07:45:29,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-01-18 07:45:29,618 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:29,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:29,639 INFO L225 Difference]: With dead ends: 10377 [2022-01-18 07:45:29,639 INFO L226 Difference]: Without dead ends: 10313 [2022-01-18 07:45:29,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=422, Invalid=4980, Unknown=0, NotChecked=0, Total=5402 [2022-01-18 07:45:29,640 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 546 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 3001 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 3107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:29,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 2216 Invalid, 3107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 3001 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:45:29,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10313 states. [2022-01-18 07:45:29,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10313 to 7039. [2022-01-18 07:45:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 7038 states have (on average 3.4857914180164817) internal successors, (24533), 7038 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 24533 transitions. [2022-01-18 07:45:29,758 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 24533 transitions. Word has length 39 [2022-01-18 07:45:29,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:29,758 INFO L470 AbstractCegarLoop]: Abstraction has 7039 states and 24533 transitions. [2022-01-18 07:45:29,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:29,758 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 24533 transitions. [2022-01-18 07:45:29,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:29,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:29,769 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] [2022-01-18 07:45:29,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-01-18 07:45:29,769 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:29,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:29,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1884007398, now seen corresponding path program 231 times [2022-01-18 07:45:29,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:29,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641558741] [2022-01-18 07:45:29,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:29,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:29,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:29,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:29,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641558741] [2022-01-18 07:45:29,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641558741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:29,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:29,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:29,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278591637] [2022-01-18 07:45:29,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:29,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:29,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:29,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:29,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:29,975 INFO L87 Difference]: Start difference. First operand 7039 states and 24533 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:31,295 INFO L93 Difference]: Finished difference Result 9481 states and 32651 transitions. [2022-01-18 07:45:31,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 07:45:31,295 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:31,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:31,315 INFO L225 Difference]: With dead ends: 9481 [2022-01-18 07:45:31,315 INFO L226 Difference]: Without dead ends: 9438 [2022-01-18 07:45:31,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=236, Invalid=2314, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 07:45:31,316 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 420 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:31,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [420 Valid, 1942 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:45:31,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9438 states. [2022-01-18 07:45:31,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9438 to 7067. [2022-01-18 07:45:31,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7067 states, 7066 states have (on average 3.484574016416643) internal successors, (24622), 7066 states have internal predecessors, (24622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:31,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7067 states to 7067 states and 24622 transitions. [2022-01-18 07:45:31,452 INFO L78 Accepts]: Start accepts. Automaton has 7067 states and 24622 transitions. Word has length 39 [2022-01-18 07:45:31,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:31,452 INFO L470 AbstractCegarLoop]: Abstraction has 7067 states and 24622 transitions. [2022-01-18 07:45:31,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:31,452 INFO L276 IsEmpty]: Start isEmpty. Operand 7067 states and 24622 transitions. [2022-01-18 07:45:31,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:31,463 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:31,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:31,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-01-18 07:45:31,463 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:31,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:31,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1863858664, now seen corresponding path program 232 times [2022-01-18 07:45:31,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:31,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021881097] [2022-01-18 07:45:31,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:31,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:31,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:31,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:31,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021881097] [2022-01-18 07:45:31,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021881097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:31,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:31,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:31,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967682527] [2022-01-18 07:45:31,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:31,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:31,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:31,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:31,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:31,674 INFO L87 Difference]: Start difference. First operand 7067 states and 24622 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:33,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:33,219 INFO L93 Difference]: Finished difference Result 9597 states and 33004 transitions. [2022-01-18 07:45:33,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:45:33,220 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 [2022-01-18 07:45:33,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:33,240 INFO L225 Difference]: With dead ends: 9597 [2022-01-18 07:45:33,240 INFO L226 Difference]: Without dead ends: 9554 [2022-01-18 07:45:33,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=262, Invalid=2600, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:45:33,240 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 425 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 2728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:33,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [425 Valid, 2075 Invalid, 2728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:45:33,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9554 states. [2022-01-18 07:45:33,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9554 to 7063. [2022-01-18 07:45:33,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7063 states, 7062 states have (on average 3.485131690739167) internal successors, (24612), 7062 states have internal predecessors, (24612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:33,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7063 states to 7063 states and 24612 transitions. [2022-01-18 07:45:33,353 INFO L78 Accepts]: Start accepts. Automaton has 7063 states and 24612 transitions. Word has length 39 [2022-01-18 07:45:33,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:33,353 INFO L470 AbstractCegarLoop]: Abstraction has 7063 states and 24612 transitions. [2022-01-18 07:45:33,353 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) [2022-01-18 07:45:33,354 INFO L276 IsEmpty]: Start isEmpty. Operand 7063 states and 24612 transitions. [2022-01-18 07:45:33,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:33,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:33,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:33,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-01-18 07:45:33,364 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:33,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:33,365 INFO L85 PathProgramCache]: Analyzing trace with hash -711355176, now seen corresponding path program 233 times [2022-01-18 07:45:33,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:33,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37527592] [2022-01-18 07:45:33,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:33,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:33,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:33,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:33,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37527592] [2022-01-18 07:45:33,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37527592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:33,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:33,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:33,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852720831] [2022-01-18 07:45:33,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:33,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:33,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:33,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:33,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:33,569 INFO L87 Difference]: Start difference. First operand 7063 states and 24612 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:35,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:35,231 INFO L93 Difference]: Finished difference Result 10704 states and 36777 transitions. [2022-01-18 07:45:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 07:45:35,231 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:35,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:35,254 INFO L225 Difference]: With dead ends: 10704 [2022-01-18 07:45:35,255 INFO L226 Difference]: Without dead ends: 10644 [2022-01-18 07:45:35,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=318, Invalid=3342, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 07:45:35,255 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 457 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 3016 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 3080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:35,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 2399 Invalid, 3080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3016 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:45:35,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10644 states. [2022-01-18 07:45:35,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10644 to 7057. [2022-01-18 07:45:35,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7057 states, 7056 states have (on average 3.48625283446712) internal successors, (24599), 7056 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:35,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7057 states to 7057 states and 24599 transitions. [2022-01-18 07:45:35,409 INFO L78 Accepts]: Start accepts. Automaton has 7057 states and 24599 transitions. Word has length 39 [2022-01-18 07:45:35,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:35,409 INFO L470 AbstractCegarLoop]: Abstraction has 7057 states and 24599 transitions. [2022-01-18 07:45:35,409 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) [2022-01-18 07:45:35,409 INFO L276 IsEmpty]: Start isEmpty. Operand 7057 states and 24599 transitions. [2022-01-18 07:45:35,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:35,419 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:35,419 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] [2022-01-18 07:45:35,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-01-18 07:45:35,420 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:35,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:35,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1504045578, now seen corresponding path program 234 times [2022-01-18 07:45:35,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:35,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423250832] [2022-01-18 07:45:35,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:35,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:35,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:35,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:35,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423250832] [2022-01-18 07:45:35,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423250832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:35,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:35,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:45:35,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394483301] [2022-01-18 07:45:35,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:35,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:45:35,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:35,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:45:35,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:45:35,614 INFO L87 Difference]: Start difference. First operand 7057 states and 24599 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:37,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:37,100 INFO L93 Difference]: Finished difference Result 10680 states and 36737 transitions. [2022-01-18 07:45:37,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 07:45:37,101 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:37,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:37,123 INFO L225 Difference]: With dead ends: 10680 [2022-01-18 07:45:37,123 INFO L226 Difference]: Without dead ends: 10604 [2022-01-18 07:45:37,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=270, Invalid=2700, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 07:45:37,124 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 428 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:37,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 2186 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2781 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:45:37,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10604 states. [2022-01-18 07:45:37,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10604 to 7069. [2022-01-18 07:45:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7069 states, 7068 states have (on average 3.4837294850028298) internal successors, (24623), 7068 states have internal predecessors, (24623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:37,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7069 states to 7069 states and 24623 transitions. [2022-01-18 07:45:37,251 INFO L78 Accepts]: Start accepts. Automaton has 7069 states and 24623 transitions. Word has length 39 [2022-01-18 07:45:37,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:37,251 INFO L470 AbstractCegarLoop]: Abstraction has 7069 states and 24623 transitions. [2022-01-18 07:45:37,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:37,251 INFO L276 IsEmpty]: Start isEmpty. Operand 7069 states and 24623 transitions. [2022-01-18 07:45:37,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:37,262 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:37,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:37,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-01-18 07:45:37,262 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:37,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:37,262 INFO L85 PathProgramCache]: Analyzing trace with hash 485991966, now seen corresponding path program 235 times [2022-01-18 07:45:37,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:37,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57892292] [2022-01-18 07:45:37,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:37,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:37,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:37,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:37,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57892292] [2022-01-18 07:45:37,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57892292] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:37,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:37,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:37,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850578881] [2022-01-18 07:45:37,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:37,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:37,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:37,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:37,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:37,477 INFO L87 Difference]: Start difference. First operand 7069 states and 24623 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:39,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:39,113 INFO L93 Difference]: Finished difference Result 10662 states and 36683 transitions. [2022-01-18 07:45:39,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 07:45:39,113 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:39,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:39,133 INFO L225 Difference]: With dead ends: 10662 [2022-01-18 07:45:39,133 INFO L226 Difference]: Without dead ends: 10592 [2022-01-18 07:45:39,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=295, Invalid=3127, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 07:45:39,133 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 446 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 3056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:39,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 2414 Invalid, 3056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:45:39,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2022-01-18 07:45:39,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 7057. [2022-01-18 07:45:39,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7057 states, 7056 states have (on average 3.485685941043084) internal successors, (24595), 7056 states have internal predecessors, (24595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:39,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7057 states to 7057 states and 24595 transitions. [2022-01-18 07:45:39,251 INFO L78 Accepts]: Start accepts. Automaton has 7057 states and 24595 transitions. Word has length 39 [2022-01-18 07:45:39,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:39,251 INFO L470 AbstractCegarLoop]: Abstraction has 7057 states and 24595 transitions. [2022-01-18 07:45:39,251 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) [2022-01-18 07:45:39,251 INFO L276 IsEmpty]: Start isEmpty. Operand 7057 states and 24595 transitions. [2022-01-18 07:45:39,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:39,262 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:39,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:39,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-01-18 07:45:39,262 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:39,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:39,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1332175646, now seen corresponding path program 236 times [2022-01-18 07:45:39,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:39,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182244176] [2022-01-18 07:45:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:39,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:39,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:39,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:39,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182244176] [2022-01-18 07:45:39,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182244176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:39,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:39,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:39,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51798083] [2022-01-18 07:45:39,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:39,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:39,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:39,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:39,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:39,467 INFO L87 Difference]: Start difference. First operand 7057 states and 24595 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:41,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:41,461 INFO L93 Difference]: Finished difference Result 10427 states and 35961 transitions. [2022-01-18 07:45:41,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 07:45:41,461 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:41,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:41,481 INFO L225 Difference]: With dead ends: 10427 [2022-01-18 07:45:41,482 INFO L226 Difference]: Without dead ends: 10321 [2022-01-18 07:45:41,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1652 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=452, Invalid=5248, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 07:45:41,482 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 562 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 2316 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:41,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [562 Valid, 2316 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:45:41,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10321 states. [2022-01-18 07:45:41,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10321 to 7084. [2022-01-18 07:45:41,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7084 states, 7083 states have (on average 3.4859522801072993) internal successors, (24691), 7083 states have internal predecessors, (24691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:41,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7084 states to 7084 states and 24691 transitions. [2022-01-18 07:45:41,597 INFO L78 Accepts]: Start accepts. Automaton has 7084 states and 24691 transitions. Word has length 39 [2022-01-18 07:45:41,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:41,597 INFO L470 AbstractCegarLoop]: Abstraction has 7084 states and 24691 transitions. [2022-01-18 07:45:41,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:41,597 INFO L276 IsEmpty]: Start isEmpty. Operand 7084 states and 24691 transitions. [2022-01-18 07:45:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:41,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:41,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:41,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-01-18 07:45:41,608 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:41,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:41,608 INFO L85 PathProgramCache]: Analyzing trace with hash -448422656, now seen corresponding path program 237 times [2022-01-18 07:45:41,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:41,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386648162] [2022-01-18 07:45:41,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:41,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:41,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:41,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386648162] [2022-01-18 07:45:41,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386648162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:41,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:41,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:41,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449525628] [2022-01-18 07:45:41,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:41,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:41,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:41,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:41,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:41,808 INFO L87 Difference]: Start difference. First operand 7084 states and 24691 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:44,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:44,094 INFO L93 Difference]: Finished difference Result 11618 states and 40022 transitions. [2022-01-18 07:45:44,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 07:45:44,094 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 [2022-01-18 07:45:44,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:44,119 INFO L225 Difference]: With dead ends: 11618 [2022-01-18 07:45:44,119 INFO L226 Difference]: Without dead ends: 11566 [2022-01-18 07:45:44,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2073 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=509, Invalid=6297, Unknown=0, NotChecked=0, Total=6806 [2022-01-18 07:45:44,120 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 603 mSDsluCounter, 2754 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:44,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 2668 Invalid, 3442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:45:44,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2022-01-18 07:45:44,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 7018. [2022-01-18 07:45:44,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7018 states, 7017 states have (on average 3.4855351289724954) internal successors, (24458), 7017 states have internal predecessors, (24458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:44,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7018 states to 7018 states and 24458 transitions. [2022-01-18 07:45:44,264 INFO L78 Accepts]: Start accepts. Automaton has 7018 states and 24458 transitions. Word has length 39 [2022-01-18 07:45:44,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:44,264 INFO L470 AbstractCegarLoop]: Abstraction has 7018 states and 24458 transitions. [2022-01-18 07:45:44,264 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) [2022-01-18 07:45:44,264 INFO L276 IsEmpty]: Start isEmpty. Operand 7018 states and 24458 transitions. [2022-01-18 07:45:44,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:44,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:44,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:44,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-01-18 07:45:44,275 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:44,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash -2044308080, now seen corresponding path program 238 times [2022-01-18 07:45:44,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:44,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236647901] [2022-01-18 07:45:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:44,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:44,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:44,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236647901] [2022-01-18 07:45:44,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236647901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:44,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:44,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:44,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511138140] [2022-01-18 07:45:44,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:44,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:44,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:44,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:44,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:44,474 INFO L87 Difference]: Start difference. First operand 7018 states and 24458 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:45,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:45,743 INFO L93 Difference]: Finished difference Result 9466 states and 32661 transitions. [2022-01-18 07:45:45,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 07:45:45,744 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:45,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:45,762 INFO L225 Difference]: With dead ends: 9466 [2022-01-18 07:45:45,762 INFO L226 Difference]: Without dead ends: 9411 [2022-01-18 07:45:45,763 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 [2022-01-18 07:45:45,763 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 408 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 2447 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 2493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:45,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 1911 Invalid, 2493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2447 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:45:45,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9411 states. [2022-01-18 07:45:45,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9411 to 7026. [2022-01-18 07:45:45,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7026 states, 7025 states have (on average 3.484982206405694) internal successors, (24482), 7025 states have internal predecessors, (24482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:45,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7026 states to 7026 states and 24482 transitions. [2022-01-18 07:45:45,879 INFO L78 Accepts]: Start accepts. Automaton has 7026 states and 24482 transitions. Word has length 39 [2022-01-18 07:45:45,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:45,879 INFO L470 AbstractCegarLoop]: Abstraction has 7026 states and 24482 transitions. [2022-01-18 07:45:45,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:45,879 INFO L276 IsEmpty]: Start isEmpty. Operand 7026 states and 24482 transitions. [2022-01-18 07:45:45,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:45,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:45,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:45,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-01-18 07:45:45,889 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:45,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash -871655858, now seen corresponding path program 239 times [2022-01-18 07:45:45,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:45,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934497181] [2022-01-18 07:45:45,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:45,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:46,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:46,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:46,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934497181] [2022-01-18 07:45:46,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934497181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:46,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:46,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:46,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443117801] [2022-01-18 07:45:46,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:46,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:46,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:46,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:46,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:46,099 INFO L87 Difference]: Start difference. First operand 7026 states and 24482 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:47,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:47,831 INFO L93 Difference]: Finished difference Result 10690 states and 36761 transitions. [2022-01-18 07:45:47,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 07:45:47,831 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:47,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:47,852 INFO L225 Difference]: With dead ends: 10690 [2022-01-18 07:45:47,852 INFO L226 Difference]: Without dead ends: 10630 [2022-01-18 07:45:47,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=336, Invalid=3446, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 07:45:47,853 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 456 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 2932 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 2995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:47,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 2414 Invalid, 2995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2932 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:45:47,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10630 states. [2022-01-18 07:45:47,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10630 to 7024. [2022-01-18 07:45:47,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7024 states, 7023 states have (on average 3.48526270824434) internal successors, (24477), 7023 states have internal predecessors, (24477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:47,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7024 states to 7024 states and 24477 transitions. [2022-01-18 07:45:47,970 INFO L78 Accepts]: Start accepts. Automaton has 7024 states and 24477 transitions. Word has length 39 [2022-01-18 07:45:47,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:47,970 INFO L470 AbstractCegarLoop]: Abstraction has 7024 states and 24477 transitions. [2022-01-18 07:45:47,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:47,970 INFO L276 IsEmpty]: Start isEmpty. Operand 7024 states and 24477 transitions. [2022-01-18 07:45:47,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:47,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:47,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:47,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-01-18 07:45:47,980 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:47,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:47,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1545907836, now seen corresponding path program 240 times [2022-01-18 07:45:47,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:47,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403577827] [2022-01-18 07:45:47,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:47,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:48,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:48,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:48,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403577827] [2022-01-18 07:45:48,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403577827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:48,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:48,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:48,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338342492] [2022-01-18 07:45:48,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:48,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:48,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:48,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:48,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:48,179 INFO L87 Difference]: Start difference. First operand 7024 states and 24477 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:49,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:49,411 INFO L93 Difference]: Finished difference Result 9387 states and 32487 transitions. [2022-01-18 07:45:49,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 07:45:49,411 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:49,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:49,430 INFO L225 Difference]: With dead ends: 9387 [2022-01-18 07:45:49,430 INFO L226 Difference]: Without dead ends: 9296 [2022-01-18 07:45:49,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=219, Invalid=2133, Unknown=0, NotChecked=0, Total=2352 [2022-01-18 07:45:49,430 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 386 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 2429 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:49,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1983 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2429 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:45:49,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9296 states. [2022-01-18 07:45:49,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9296 to 7024. [2022-01-18 07:45:49,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7024 states, 7023 states have (on average 3.484408372490389) internal successors, (24471), 7023 states have internal predecessors, (24471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:49,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7024 states to 7024 states and 24471 transitions. [2022-01-18 07:45:49,542 INFO L78 Accepts]: Start accepts. Automaton has 7024 states and 24471 transitions. Word has length 39 [2022-01-18 07:45:49,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:49,542 INFO L470 AbstractCegarLoop]: Abstraction has 7024 states and 24471 transitions. [2022-01-18 07:45:49,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:49,542 INFO L276 IsEmpty]: Start isEmpty. Operand 7024 states and 24471 transitions. [2022-01-18 07:45:49,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:49,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:49,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:49,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-01-18 07:45:49,553 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:49,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:49,553 INFO L85 PathProgramCache]: Analyzing trace with hash 43425630, now seen corresponding path program 241 times [2022-01-18 07:45:49,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:49,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007441417] [2022-01-18 07:45:49,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:49,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:49,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:49,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:49,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007441417] [2022-01-18 07:45:49,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007441417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:49,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:49,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:49,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942229316] [2022-01-18 07:45:49,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:49,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:49,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:49,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:49,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:49,760 INFO L87 Difference]: Start difference. First operand 7024 states and 24471 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:51,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:51,532 INFO L93 Difference]: Finished difference Result 10780 states and 37126 transitions. [2022-01-18 07:45:51,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 07:45:51,533 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:51,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:51,554 INFO L225 Difference]: With dead ends: 10780 [2022-01-18 07:45:51,554 INFO L226 Difference]: Without dead ends: 10680 [2022-01-18 07:45:51,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 983 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=345, Invalid=3561, Unknown=0, NotChecked=0, Total=3906 [2022-01-18 07:45:51,555 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 442 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 3153 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 3219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:51,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 2622 Invalid, 3219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3153 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:45:51,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2022-01-18 07:45:51,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 7036. [2022-01-18 07:45:51,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7036 states, 7035 states have (on average 3.483866382373845) internal successors, (24509), 7035 states have internal predecessors, (24509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:51,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7036 states to 7036 states and 24509 transitions. [2022-01-18 07:45:51,674 INFO L78 Accepts]: Start accepts. Automaton has 7036 states and 24509 transitions. Word has length 39 [2022-01-18 07:45:51,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:51,674 INFO L470 AbstractCegarLoop]: Abstraction has 7036 states and 24509 transitions. [2022-01-18 07:45:51,674 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) [2022-01-18 07:45:51,674 INFO L276 IsEmpty]: Start isEmpty. Operand 7036 states and 24509 transitions. [2022-01-18 07:45:51,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:51,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:51,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:51,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-01-18 07:45:51,685 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:51,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:51,685 INFO L85 PathProgramCache]: Analyzing trace with hash -193199366, now seen corresponding path program 242 times [2022-01-18 07:45:51,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:51,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636130931] [2022-01-18 07:45:51,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:51,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:51,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:51,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:51,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636130931] [2022-01-18 07:45:51,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636130931] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:51,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:51,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:45:51,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799553542] [2022-01-18 07:45:51,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:51,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:45:51,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:51,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:45:51,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:45:51,874 INFO L87 Difference]: Start difference. First operand 7036 states and 24509 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:53,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:53,294 INFO L93 Difference]: Finished difference Result 10500 states and 36228 transitions. [2022-01-18 07:45:53,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 07:45:53,295 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:53,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:53,315 INFO L225 Difference]: With dead ends: 10500 [2022-01-18 07:45:53,315 INFO L226 Difference]: Without dead ends: 10424 [2022-01-18 07:45:53,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=246, Invalid=2406, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 07:45:53,316 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 391 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:53,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 2168 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2749 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:45:53,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10424 states. [2022-01-18 07:45:53,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10424 to 7068. [2022-01-18 07:45:53,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7068 states, 7067 states have (on average 3.4805433705957265) internal successors, (24597), 7067 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:53,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7068 states to 7068 states and 24597 transitions. [2022-01-18 07:45:53,432 INFO L78 Accepts]: Start accepts. Automaton has 7068 states and 24597 transitions. Word has length 39 [2022-01-18 07:45:53,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:53,433 INFO L470 AbstractCegarLoop]: Abstraction has 7068 states and 24597 transitions. [2022-01-18 07:45:53,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:53,433 INFO L276 IsEmpty]: Start isEmpty. Operand 7068 states and 24597 transitions. [2022-01-18 07:45:53,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:53,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:53,443 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] [2022-01-18 07:45:53,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-01-18 07:45:53,443 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:53,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:53,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1211252978, now seen corresponding path program 243 times [2022-01-18 07:45:53,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:53,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185633722] [2022-01-18 07:45:53,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:53,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:53,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:53,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:53,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185633722] [2022-01-18 07:45:53,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185633722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:53,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:53,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:53,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259270293] [2022-01-18 07:45:53,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:53,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:53,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:53,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:53,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:53,642 INFO L87 Difference]: Start difference. First operand 7068 states and 24597 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:55,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:55,338 INFO L93 Difference]: Finished difference Result 10482 states and 36174 transitions. [2022-01-18 07:45:55,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 07:45:55,338 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:55,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:55,362 INFO L225 Difference]: With dead ends: 10482 [2022-01-18 07:45:55,362 INFO L226 Difference]: Without dead ends: 10416 [2022-01-18 07:45:55,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=270, Invalid=2810, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 07:45:55,363 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 417 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 2929 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 2984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:55,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 2375 Invalid, 2984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2929 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:45:55,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10416 states. [2022-01-18 07:45:55,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10416 to 7060. [2022-01-18 07:45:55,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7060 states, 7059 states have (on average 3.48108797280068) internal successors, (24573), 7059 states have internal predecessors, (24573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:55,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7060 states to 7060 states and 24573 transitions. [2022-01-18 07:45:55,514 INFO L78 Accepts]: Start accepts. Automaton has 7060 states and 24573 transitions. Word has length 39 [2022-01-18 07:45:55,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:55,514 INFO L470 AbstractCegarLoop]: Abstraction has 7060 states and 24573 transitions. [2022-01-18 07:45:55,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:55,514 INFO L276 IsEmpty]: Start isEmpty. Operand 7060 states and 24573 transitions. [2022-01-18 07:45:55,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:55,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:55,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:55,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-01-18 07:45:55,526 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:55,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:55,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1493518632, now seen corresponding path program 244 times [2022-01-18 07:45:55,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:55,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940866621] [2022-01-18 07:45:55,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:55,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:55,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:55,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940866621] [2022-01-18 07:45:55,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940866621] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:55,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:55,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:55,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390570595] [2022-01-18 07:45:55,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:55,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:55,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:55,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:55,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:55,747 INFO L87 Difference]: Start difference. First operand 7060 states and 24573 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:57,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:45:57,472 INFO L93 Difference]: Finished difference Result 10652 states and 36718 transitions. [2022-01-18 07:45:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 07:45:57,472 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:45:57,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:45:57,494 INFO L225 Difference]: With dead ends: 10652 [2022-01-18 07:45:57,494 INFO L226 Difference]: Without dead ends: 10490 [2022-01-18 07:45:57,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=295, Invalid=3011, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 07:45:57,495 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 412 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 3080 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:45:57,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 2505 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3080 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:45:57,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10490 states. [2022-01-18 07:45:57,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10490 to 6976. [2022-01-18 07:45:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6976 states, 6975 states have (on average 3.4874551971326166) internal successors, (24325), 6975 states have internal predecessors, (24325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:57,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6976 states to 6976 states and 24325 transitions. [2022-01-18 07:45:57,611 INFO L78 Accepts]: Start accepts. Automaton has 6976 states and 24325 transitions. Word has length 39 [2022-01-18 07:45:57,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:45:57,612 INFO L470 AbstractCegarLoop]: Abstraction has 6976 states and 24325 transitions. [2022-01-18 07:45:57,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:45:57,612 INFO L276 IsEmpty]: Start isEmpty. Operand 6976 states and 24325 transitions. [2022-01-18 07:45:57,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:45:57,622 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:45:57,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:45:57,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-01-18 07:45:57,622 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:45:57,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:45:57,622 INFO L85 PathProgramCache]: Analyzing trace with hash -446000826, now seen corresponding path program 245 times [2022-01-18 07:45:57,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:45:57,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539513072] [2022-01-18 07:45:57,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:45:57,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:45:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:45:57,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:45:57,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:45:57,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539513072] [2022-01-18 07:45:57,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539513072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:45:57,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:45:57,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:45:57,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384433616] [2022-01-18 07:45:57,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:45:57,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:45:57,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:45:57,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:45:57,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:45:57,825 INFO L87 Difference]: Start difference. First operand 6976 states and 24325 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:00,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:00,050 INFO L93 Difference]: Finished difference Result 10481 states and 35926 transitions. [2022-01-18 07:46:00,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-18 07:46:00,050 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 [2022-01-18 07:46:00,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:00,071 INFO L225 Difference]: With dead ends: 10481 [2022-01-18 07:46:00,071 INFO L226 Difference]: Without dead ends: 10417 [2022-01-18 07:46:00,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1881 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=493, Invalid=5827, Unknown=0, NotChecked=0, Total=6320 [2022-01-18 07:46:00,072 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 551 mSDsluCounter, 2495 mSDsCounter, 0 mSdLazyCounter, 3182 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 2291 SdHoareTripleChecker+Invalid, 3294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 3182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:00,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 2291 Invalid, 3294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 3182 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:46:00,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2022-01-18 07:46:00,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 6979. [2022-01-18 07:46:00,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6979 states, 6978 states have (on average 3.487675551734021) internal successors, (24337), 6978 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:00,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6979 states to 6979 states and 24337 transitions. [2022-01-18 07:46:00,191 INFO L78 Accepts]: Start accepts. Automaton has 6979 states and 24337 transitions. Word has length 39 [2022-01-18 07:46:00,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:00,191 INFO L470 AbstractCegarLoop]: Abstraction has 6979 states and 24337 transitions. [2022-01-18 07:46:00,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:00,191 INFO L276 IsEmpty]: Start isEmpty. Operand 6979 states and 24337 transitions. [2022-01-18 07:46:00,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:00,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:00,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:00,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-01-18 07:46:00,201 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:00,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:00,202 INFO L85 PathProgramCache]: Analyzing trace with hash 472482744, now seen corresponding path program 246 times [2022-01-18 07:46:00,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:00,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328892627] [2022-01-18 07:46:00,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:00,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:00,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:00,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:00,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328892627] [2022-01-18 07:46:00,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328892627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:00,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:00,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:00,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965543147] [2022-01-18 07:46:00,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:00,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:00,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:00,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:00,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:00,401 INFO L87 Difference]: Start difference. First operand 6979 states and 24337 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:01,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:01,866 INFO L93 Difference]: Finished difference Result 9530 states and 32717 transitions. [2022-01-18 07:46:01,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 07:46:01,866 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 [2022-01-18 07:46:01,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:01,887 INFO L225 Difference]: With dead ends: 9530 [2022-01-18 07:46:01,887 INFO L226 Difference]: Without dead ends: 9487 [2022-01-18 07:46:01,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=2598, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:46:01,887 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 443 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 2729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:01,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 1919 Invalid, 2729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:01,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9487 states. [2022-01-18 07:46:01,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9487 to 6991. [2022-01-18 07:46:01,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6991 states, 6990 states have (on average 3.486123032904149) internal successors, (24368), 6990 states have internal predecessors, (24368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:02,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6991 states to 6991 states and 24368 transitions. [2022-01-18 07:46:02,005 INFO L78 Accepts]: Start accepts. Automaton has 6991 states and 24368 transitions. Word has length 39 [2022-01-18 07:46:02,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:02,005 INFO L470 AbstractCegarLoop]: Abstraction has 6991 states and 24368 transitions. [2022-01-18 07:46:02,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:02,005 INFO L276 IsEmpty]: Start isEmpty. Operand 6991 states and 24368 transitions. [2022-01-18 07:46:02,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:02,016 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:02,016 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] [2022-01-18 07:46:02,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-01-18 07:46:02,017 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:02,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:02,017 INFO L85 PathProgramCache]: Analyzing trace with hash 492631478, now seen corresponding path program 247 times [2022-01-18 07:46:02,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:02,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909613826] [2022-01-18 07:46:02,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:02,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:02,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:02,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:02,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909613826] [2022-01-18 07:46:02,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909613826] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:02,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:02,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:02,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815678724] [2022-01-18 07:46:02,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:02,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:02,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:02,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:02,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:02,246 INFO L87 Difference]: Start difference. First operand 6991 states and 24368 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:03,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:03,843 INFO L93 Difference]: Finished difference Result 9712 states and 33226 transitions. [2022-01-18 07:46:03,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 07:46:03,843 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 [2022-01-18 07:46:03,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:03,862 INFO L225 Difference]: With dead ends: 9712 [2022-01-18 07:46:03,863 INFO L226 Difference]: Without dead ends: 9669 [2022-01-18 07:46:03,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=302, Invalid=3120, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 07:46:03,863 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 461 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:03,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 2099 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:46:03,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9669 states. [2022-01-18 07:46:03,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9669 to 6987. [2022-01-18 07:46:03,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6986 states have (on average 3.4866876610363584) internal successors, (24358), 6986 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:03,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 24358 transitions. [2022-01-18 07:46:03,974 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 24358 transitions. Word has length 39 [2022-01-18 07:46:03,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:03,975 INFO L470 AbstractCegarLoop]: Abstraction has 6987 states and 24358 transitions. [2022-01-18 07:46:03,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:03,975 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 24358 transitions. [2022-01-18 07:46:03,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:03,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:03,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:03,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-01-18 07:46:03,985 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:03,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:03,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1645134966, now seen corresponding path program 248 times [2022-01-18 07:46:03,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:03,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651324319] [2022-01-18 07:46:03,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:03,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:04,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:04,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:04,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651324319] [2022-01-18 07:46:04,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651324319] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:04,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:04,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:04,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665016250] [2022-01-18 07:46:04,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:04,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:04,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:04,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:04,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:04,185 INFO L87 Difference]: Start difference. First operand 6987 states and 24358 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:06,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:06,165 INFO L93 Difference]: Finished difference Result 10752 states and 36838 transitions. [2022-01-18 07:46:06,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 07:46:06,166 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 [2022-01-18 07:46:06,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:06,187 INFO L225 Difference]: With dead ends: 10752 [2022-01-18 07:46:06,187 INFO L226 Difference]: Without dead ends: 10692 [2022-01-18 07:46:06,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1221 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=398, Invalid=4158, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 07:46:06,188 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 488 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 3260 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 3348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:06,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2441 Invalid, 3348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 3260 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:46:06,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-01-18 07:46:06,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 6987. [2022-01-18 07:46:06,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6986 states have (on average 3.4875465216146577) internal successors, (24364), 6986 states have internal predecessors, (24364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:06,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 24364 transitions. [2022-01-18 07:46:06,351 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 24364 transitions. Word has length 39 [2022-01-18 07:46:06,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:06,351 INFO L470 AbstractCegarLoop]: Abstraction has 6987 states and 24364 transitions. [2022-01-18 07:46:06,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:06,351 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 24364 transitions. [2022-01-18 07:46:06,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:06,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:06,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:06,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-01-18 07:46:06,362 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:06,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:06,362 INFO L85 PathProgramCache]: Analyzing trace with hash -434431576, now seen corresponding path program 249 times [2022-01-18 07:46:06,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:06,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031842793] [2022-01-18 07:46:06,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:06,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:06,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:06,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:06,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031842793] [2022-01-18 07:46:06,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031842793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:06,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:06,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:46:06,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263031496] [2022-01-18 07:46:06,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:06,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:46:06,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:06,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:46:06,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:46:06,550 INFO L87 Difference]: Start difference. First operand 6987 states and 24364 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:08,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:08,230 INFO L93 Difference]: Finished difference Result 10732 states and 36775 transitions. [2022-01-18 07:46:08,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 07:46:08,231 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:08,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:08,252 INFO L225 Difference]: With dead ends: 10732 [2022-01-18 07:46:08,252 INFO L226 Difference]: Without dead ends: 10656 [2022-01-18 07:46:08,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=322, Invalid=3218, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:46:08,252 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 456 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 2959 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 3020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:08,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 2178 Invalid, 3020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:46:08,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10656 states. [2022-01-18 07:46:08,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10656 to 6999. [2022-01-18 07:46:08,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6999 states, 6998 states have (on average 3.4849957130608744) internal successors, (24388), 6998 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:08,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6999 states to 6999 states and 24388 transitions. [2022-01-18 07:46:08,370 INFO L78 Accepts]: Start accepts. Automaton has 6999 states and 24388 transitions. Word has length 39 [2022-01-18 07:46:08,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:08,370 INFO L470 AbstractCegarLoop]: Abstraction has 6999 states and 24388 transitions. [2022-01-18 07:46:08,370 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) [2022-01-18 07:46:08,370 INFO L276 IsEmpty]: Start isEmpty. Operand 6999 states and 24388 transitions. [2022-01-18 07:46:08,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:08,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:08,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:08,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-01-18 07:46:08,381 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:08,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:08,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1452485188, now seen corresponding path program 250 times [2022-01-18 07:46:08,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:08,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540830572] [2022-01-18 07:46:08,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:08,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:08,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:08,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:08,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540830572] [2022-01-18 07:46:08,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540830572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:08,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:08,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:08,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141168600] [2022-01-18 07:46:08,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:08,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:08,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:08,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:08,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:08,577 INFO L87 Difference]: Start difference. First operand 6999 states and 24388 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:10,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:10,490 INFO L93 Difference]: Finished difference Result 10738 states and 36791 transitions. [2022-01-18 07:46:10,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 07:46:10,490 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:10,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:10,542 INFO L225 Difference]: With dead ends: 10738 [2022-01-18 07:46:10,543 INFO L226 Difference]: Without dead ends: 10668 [2022-01-18 07:46:10,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1123 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=373, Invalid=3917, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 07:46:10,543 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 474 mSDsluCounter, 2582 mSDsCounter, 0 mSdLazyCounter, 3226 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 3312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:10,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2408 Invalid, 3312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3226 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:46:10,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10668 states. [2022-01-18 07:46:10,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10668 to 6987. [2022-01-18 07:46:10,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6987 states, 6986 states have (on average 3.4866876610363584) internal successors, (24358), 6986 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:10,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6987 states to 6987 states and 24358 transitions. [2022-01-18 07:46:10,647 INFO L78 Accepts]: Start accepts. Automaton has 6987 states and 24358 transitions. Word has length 39 [2022-01-18 07:46:10,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:10,648 INFO L470 AbstractCegarLoop]: Abstraction has 6987 states and 24358 transitions. [2022-01-18 07:46:10,648 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) [2022-01-18 07:46:10,648 INFO L276 IsEmpty]: Start isEmpty. Operand 6987 states and 24358 transitions. [2022-01-18 07:46:10,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:10,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:10,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:10,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-01-18 07:46:10,658 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:10,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:10,658 INFO L85 PathProgramCache]: Analyzing trace with hash -976097318, now seen corresponding path program 251 times [2022-01-18 07:46:10,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:10,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028083247] [2022-01-18 07:46:10,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:10,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:10,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:10,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028083247] [2022-01-18 07:46:10,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028083247] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:10,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:10,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:10,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354413028] [2022-01-18 07:46:10,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:10,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:10,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:10,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:10,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:10,855 INFO L87 Difference]: Start difference. First operand 6987 states and 24358 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:12,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:12,930 INFO L93 Difference]: Finished difference Result 10391 states and 35712 transitions. [2022-01-18 07:46:12,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-18 07:46:12,931 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:12,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:12,952 INFO L225 Difference]: With dead ends: 10391 [2022-01-18 07:46:12,952 INFO L226 Difference]: Without dead ends: 10327 [2022-01-18 07:46:12,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1643 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=443, Invalid=5257, Unknown=0, NotChecked=0, Total=5700 [2022-01-18 07:46:12,953 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 533 mSDsluCounter, 2552 mSDsCounter, 0 mSdLazyCounter, 3272 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 3367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:12,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 2348 Invalid, 3367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3272 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:46:12,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10327 states. [2022-01-18 07:46:13,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10327 to 6986. [2022-01-18 07:46:13,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6986 states, 6985 states have (on average 3.4866141732283467) internal successors, (24354), 6985 states have internal predecessors, (24354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:13,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6986 states to 6986 states and 24354 transitions. [2022-01-18 07:46:13,070 INFO L78 Accepts]: Start accepts. Automaton has 6986 states and 24354 transitions. Word has length 39 [2022-01-18 07:46:13,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:13,070 INFO L470 AbstractCegarLoop]: Abstraction has 6986 states and 24354 transitions. [2022-01-18 07:46:13,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:13,070 INFO L276 IsEmpty]: Start isEmpty. Operand 6986 states and 24354 transitions. [2022-01-18 07:46:13,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:13,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:13,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:13,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-01-18 07:46:13,081 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:13,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:13,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1781450748, now seen corresponding path program 252 times [2022-01-18 07:46:13,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:13,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212683792] [2022-01-18 07:46:13,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:13,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:13,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:13,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:13,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212683792] [2022-01-18 07:46:13,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212683792] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:13,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:13,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:13,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517417676] [2022-01-18 07:46:13,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:13,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:13,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:13,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:13,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:13,291 INFO L87 Difference]: Start difference. First operand 6986 states and 24354 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:14,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:14,674 INFO L93 Difference]: Finished difference Result 9474 states and 32586 transitions. [2022-01-18 07:46:14,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-18 07:46:14,675 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 [2022-01-18 07:46:14,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:14,692 INFO L225 Difference]: With dead ends: 9474 [2022-01-18 07:46:14,693 INFO L226 Difference]: Without dead ends: 9431 [2022-01-18 07:46:14,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=2322, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 07:46:14,693 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 421 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 2748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:14,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1943 Invalid, 2748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:14,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9431 states. [2022-01-18 07:46:14,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9431 to 7001. [2022-01-18 07:46:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7001 states, 7000 states have (on average 3.4844285714285714) internal successors, (24391), 7000 states have internal predecessors, (24391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:14,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7001 states to 7001 states and 24391 transitions. [2022-01-18 07:46:14,796 INFO L78 Accepts]: Start accepts. Automaton has 7001 states and 24391 transitions. Word has length 39 [2022-01-18 07:46:14,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:14,796 INFO L470 AbstractCegarLoop]: Abstraction has 7001 states and 24391 transitions. [2022-01-18 07:46:14,796 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) [2022-01-18 07:46:14,796 INFO L276 IsEmpty]: Start isEmpty. Operand 7001 states and 24391 transitions. [2022-01-18 07:46:14,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:14,806 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:14,806 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] [2022-01-18 07:46:14,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-01-18 07:46:14,806 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:14,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:14,807 INFO L85 PathProgramCache]: Analyzing trace with hash -763409412, now seen corresponding path program 253 times [2022-01-18 07:46:14,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:14,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618190864] [2022-01-18 07:46:14,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:14,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:15,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:15,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:15,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618190864] [2022-01-18 07:46:15,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618190864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:15,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:15,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:15,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546594403] [2022-01-18 07:46:15,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:15,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:15,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:15,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:15,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:15,005 INFO L87 Difference]: Start difference. First operand 7001 states and 24391 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:16,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:16,402 INFO L93 Difference]: Finished difference Result 9425 states and 32468 transitions. [2022-01-18 07:46:16,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 07:46:16,403 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:16,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:16,422 INFO L225 Difference]: With dead ends: 9425 [2022-01-18 07:46:16,422 INFO L226 Difference]: Without dead ends: 9374 [2022-01-18 07:46:16,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=245, Invalid=2511, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 07:46:16,423 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 426 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 2752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:16,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 1926 Invalid, 2752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:16,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9374 states. [2022-01-18 07:46:16,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9374 to 6995. [2022-01-18 07:46:16,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6995 states, 6994 states have (on average 3.4851301115241635) internal successors, (24375), 6994 states have internal predecessors, (24375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:16,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6995 states to 6995 states and 24375 transitions. [2022-01-18 07:46:16,532 INFO L78 Accepts]: Start accepts. Automaton has 6995 states and 24375 transitions. Word has length 39 [2022-01-18 07:46:16,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:16,532 INFO L470 AbstractCegarLoop]: Abstraction has 6995 states and 24375 transitions. [2022-01-18 07:46:16,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:16,533 INFO L276 IsEmpty]: Start isEmpty. Operand 6995 states and 24375 transitions. [2022-01-18 07:46:16,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:16,543 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:16,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:16,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-01-18 07:46:16,543 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:16,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:16,543 INFO L85 PathProgramCache]: Analyzing trace with hash -146191010, now seen corresponding path program 254 times [2022-01-18 07:46:16,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:16,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208193274] [2022-01-18 07:46:16,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:16,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:16,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:16,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208193274] [2022-01-18 07:46:16,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208193274] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:16,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:16,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:16,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626107943] [2022-01-18 07:46:16,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:16,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:16,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:16,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:16,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:16,756 INFO L87 Difference]: Start difference. First operand 6995 states and 24375 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:18,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:18,735 INFO L93 Difference]: Finished difference Result 10767 states and 36879 transitions. [2022-01-18 07:46:18,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 07:46:18,735 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:18,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:18,756 INFO L225 Difference]: With dead ends: 10767 [2022-01-18 07:46:18,756 INFO L226 Difference]: Without dead ends: 10721 [2022-01-18 07:46:18,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1215 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=376, Invalid=4180, Unknown=0, NotChecked=0, Total=4556 [2022-01-18 07:46:18,756 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 481 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 3368 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 3432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:18,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 2467 Invalid, 3432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3368 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:46:18,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2022-01-18 07:46:18,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 7002. [2022-01-18 07:46:18,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.483788030281388) internal successors, (24390), 7001 states have internal predecessors, (24390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:18,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24390 transitions. [2022-01-18 07:46:18,873 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24390 transitions. Word has length 39 [2022-01-18 07:46:18,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:18,873 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24390 transitions. [2022-01-18 07:46:18,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:18,873 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24390 transitions. [2022-01-18 07:46:18,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:18,884 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:18,884 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] [2022-01-18 07:46:18,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-01-18 07:46:18,884 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:18,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:18,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1581258500, now seen corresponding path program 255 times [2022-01-18 07:46:18,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:18,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221741053] [2022-01-18 07:46:18,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:18,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:19,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:19,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221741053] [2022-01-18 07:46:19,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221741053] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:19,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:19,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:19,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828599696] [2022-01-18 07:46:19,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:19,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:19,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:19,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:19,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:19,085 INFO L87 Difference]: Start difference. First operand 7002 states and 24390 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:20,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:20,486 INFO L93 Difference]: Finished difference Result 9433 states and 32482 transitions. [2022-01-18 07:46:20,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:46:20,486 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 [2022-01-18 07:46:20,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:20,505 INFO L225 Difference]: With dead ends: 9433 [2022-01-18 07:46:20,505 INFO L226 Difference]: Without dead ends: 9378 [2022-01-18 07:46:20,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=247, Invalid=2509, Unknown=0, NotChecked=0, Total=2756 [2022-01-18 07:46:20,505 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 424 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 2696 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:20,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 1905 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2696 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:20,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9378 states. [2022-01-18 07:46:20,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9378 to 6999. [2022-01-18 07:46:20,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6999 states, 6998 states have (on average 3.4841383252357816) internal successors, (24382), 6998 states have internal predecessors, (24382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:20,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6999 states to 6999 states and 24382 transitions. [2022-01-18 07:46:20,624 INFO L78 Accepts]: Start accepts. Automaton has 6999 states and 24382 transitions. Word has length 39 [2022-01-18 07:46:20,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:20,624 INFO L470 AbstractCegarLoop]: Abstraction has 6999 states and 24382 transitions. [2022-01-18 07:46:20,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:20,625 INFO L276 IsEmpty]: Start isEmpty. Operand 6999 states and 24382 transitions. [2022-01-18 07:46:20,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:20,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:20,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:20,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-01-18 07:46:20,636 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:20,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:20,636 INFO L85 PathProgramCache]: Analyzing trace with hash 2133092086, now seen corresponding path program 256 times [2022-01-18 07:46:20,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:20,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217833974] [2022-01-18 07:46:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:20,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:20,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:20,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:20,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217833974] [2022-01-18 07:46:20,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217833974] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:20,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:20,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-18 07:46:20,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315728807] [2022-01-18 07:46:20,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:20,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 07:46:20,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:20,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 07:46:20,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2022-01-18 07:46:20,827 INFO L87 Difference]: Start difference. First operand 6999 states and 24382 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:22,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:22,521 INFO L93 Difference]: Finished difference Result 10639 states and 36538 transitions. [2022-01-18 07:46:22,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 07:46:22,523 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:22,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:22,543 INFO L225 Difference]: With dead ends: 10639 [2022-01-18 07:46:22,543 INFO L226 Difference]: Without dead ends: 10563 [2022-01-18 07:46:22,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 854 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=311, Invalid=3111, Unknown=0, NotChecked=0, Total=3422 [2022-01-18 07:46:22,544 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 438 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 2988 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 3043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:22,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 2203 Invalid, 3043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2988 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:46:22,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2022-01-18 07:46:22,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 7013. [2022-01-18 07:46:22,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7013 states, 7012 states have (on average 3.481460353679407) internal successors, (24412), 7012 states have internal predecessors, (24412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:22,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7013 states to 7013 states and 24412 transitions. [2022-01-18 07:46:22,676 INFO L78 Accepts]: Start accepts. Automaton has 7013 states and 24412 transitions. Word has length 39 [2022-01-18 07:46:22,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:22,676 INFO L470 AbstractCegarLoop]: Abstraction has 7013 states and 24412 transitions. [2022-01-18 07:46:22,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:22,676 INFO L276 IsEmpty]: Start isEmpty. Operand 7013 states and 24412 transitions. [2022-01-18 07:46:22,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:22,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:22,688 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] [2022-01-18 07:46:22,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-01-18 07:46:22,688 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:22,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:22,688 INFO L85 PathProgramCache]: Analyzing trace with hash 585169752, now seen corresponding path program 257 times [2022-01-18 07:46:22,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:22,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320376477] [2022-01-18 07:46:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:22,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:22,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:22,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:22,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320376477] [2022-01-18 07:46:22,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320376477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:22,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:22,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:22,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094652401] [2022-01-18 07:46:22,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:22,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:22,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:22,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:22,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:22,886 INFO L87 Difference]: Start difference. First operand 7013 states and 24412 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:24,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:24,772 INFO L93 Difference]: Finished difference Result 10720 states and 36735 transitions. [2022-01-18 07:46:24,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-01-18 07:46:24,773 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:24,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:24,794 INFO L225 Difference]: With dead ends: 10720 [2022-01-18 07:46:24,794 INFO L226 Difference]: Without dead ends: 10674 [2022-01-18 07:46:24,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=353, Invalid=3807, Unknown=0, NotChecked=0, Total=4160 [2022-01-18 07:46:24,795 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 472 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 3339 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 3402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:24,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [472 Valid, 2421 Invalid, 3402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3339 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:46:24,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10674 states. [2022-01-18 07:46:24,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10674 to 7013. [2022-01-18 07:46:24,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7013 states, 7012 states have (on average 3.481460353679407) internal successors, (24412), 7012 states have internal predecessors, (24412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:24,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7013 states to 7013 states and 24412 transitions. [2022-01-18 07:46:24,918 INFO L78 Accepts]: Start accepts. Automaton has 7013 states and 24412 transitions. Word has length 39 [2022-01-18 07:46:24,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:24,918 INFO L470 AbstractCegarLoop]: Abstraction has 7013 states and 24412 transitions. [2022-01-18 07:46:24,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:24,918 INFO L276 IsEmpty]: Start isEmpty. Operand 7013 states and 24412 transitions. [2022-01-18 07:46:24,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:24,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:24,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:24,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-01-18 07:46:24,929 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:24,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:24,929 INFO L85 PathProgramCache]: Analyzing trace with hash -849897738, now seen corresponding path program 258 times [2022-01-18 07:46:24,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:24,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206299295] [2022-01-18 07:46:24,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:24,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:25,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:25,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:25,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206299295] [2022-01-18 07:46:25,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206299295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:25,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:25,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:25,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531730176] [2022-01-18 07:46:25,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:25,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:25,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:25,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:25,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:25,146 INFO L87 Difference]: Start difference. First operand 7013 states and 24412 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:26,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:26,543 INFO L93 Difference]: Finished difference Result 9331 states and 32218 transitions. [2022-01-18 07:46:26,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 07:46:26,543 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:26,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:26,561 INFO L225 Difference]: With dead ends: 9331 [2022-01-18 07:46:26,561 INFO L226 Difference]: Without dead ends: 9259 [2022-01-18 07:46:26,562 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 [2022-01-18 07:46:26,562 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 413 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 2670 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 2722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:26,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1904 Invalid, 2722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2670 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:26,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9259 states. [2022-01-18 07:46:26,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9259 to 6993. [2022-01-18 07:46:26,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6993 states, 6992 states have (on average 3.4844107551487413) internal successors, (24363), 6992 states have internal predecessors, (24363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:26,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6993 states to 6993 states and 24363 transitions. [2022-01-18 07:46:26,667 INFO L78 Accepts]: Start accepts. Automaton has 6993 states and 24363 transitions. Word has length 39 [2022-01-18 07:46:26,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:26,667 INFO L470 AbstractCegarLoop]: Abstraction has 6993 states and 24363 transitions. [2022-01-18 07:46:26,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand 6993 states and 24363 transitions. [2022-01-18 07:46:26,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:26,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:26,677 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] [2022-01-18 07:46:26,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-01-18 07:46:26,677 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:26,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:26,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1394534630, now seen corresponding path program 259 times [2022-01-18 07:46:26,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:26,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370544491] [2022-01-18 07:46:26,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:26,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:26,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:26,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:26,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370544491] [2022-01-18 07:46:26,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370544491] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:26,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:26,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:26,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601846440] [2022-01-18 07:46:26,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:26,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:26,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:26,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:26,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:26,874 INFO L87 Difference]: Start difference. First operand 6993 states and 24363 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:28,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:28,457 INFO L93 Difference]: Finished difference Result 9524 states and 32686 transitions. [2022-01-18 07:46:28,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 07:46:28,458 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:28,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:28,479 INFO L225 Difference]: With dead ends: 9524 [2022-01-18 07:46:28,479 INFO L226 Difference]: Without dead ends: 9473 [2022-01-18 07:46:28,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=319, Invalid=3221, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:46:28,480 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 463 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2724 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:28,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 1942 Invalid, 2798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2724 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:28,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9473 states. [2022-01-18 07:46:28,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9473 to 7006. [2022-01-18 07:46:28,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7006 states, 7005 states have (on average 3.483083511777302) internal successors, (24399), 7005 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:28,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 24399 transitions. [2022-01-18 07:46:28,603 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 24399 transitions. Word has length 39 [2022-01-18 07:46:28,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:28,603 INFO L470 AbstractCegarLoop]: Abstraction has 7006 states and 24399 transitions. [2022-01-18 07:46:28,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:28,603 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 24399 transitions. [2022-01-18 07:46:28,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:28,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:28,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:28,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-01-18 07:46:28,613 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:28,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:28,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1374385896, now seen corresponding path program 260 times [2022-01-18 07:46:28,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:28,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177104992] [2022-01-18 07:46:28,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:28,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:28,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:28,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177104992] [2022-01-18 07:46:28,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177104992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:28,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:28,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:28,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308630664] [2022-01-18 07:46:28,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:28,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:28,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:28,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:28,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:28,813 INFO L87 Difference]: Start difference. First operand 7006 states and 24399 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:30,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:30,426 INFO L93 Difference]: Finished difference Result 9644 states and 33043 transitions. [2022-01-18 07:46:30,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 07:46:30,426 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:30,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:30,444 INFO L225 Difference]: With dead ends: 9644 [2022-01-18 07:46:30,445 INFO L226 Difference]: Without dead ends: 9601 [2022-01-18 07:46:30,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 866 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=318, Invalid=3222, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:46:30,445 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 453 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 2786 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 2858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:30,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 2048 Invalid, 2858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2786 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:46:30,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9601 states. [2022-01-18 07:46:30,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9601 to 7006. [2022-01-18 07:46:30,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7006 states, 7005 states have (on average 3.4827980014275517) internal successors, (24397), 7005 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:30,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7006 states to 7006 states and 24397 transitions. [2022-01-18 07:46:30,555 INFO L78 Accepts]: Start accepts. Automaton has 7006 states and 24397 transitions. Word has length 39 [2022-01-18 07:46:30,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:30,555 INFO L470 AbstractCegarLoop]: Abstraction has 7006 states and 24397 transitions. [2022-01-18 07:46:30,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:30,555 INFO L276 IsEmpty]: Start isEmpty. Operand 7006 states and 24397 transitions. [2022-01-18 07:46:30,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:30,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:30,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:30,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-01-18 07:46:30,566 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:30,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:30,566 INFO L85 PathProgramCache]: Analyzing trace with hash -221882408, now seen corresponding path program 261 times [2022-01-18 07:46:30,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:30,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669385348] [2022-01-18 07:46:30,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:30,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:30,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:30,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:30,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669385348] [2022-01-18 07:46:30,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669385348] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:30,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:30,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:30,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560447945] [2022-01-18 07:46:30,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:30,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:30,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:30,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:30,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:30,764 INFO L87 Difference]: Start difference. First operand 7006 states and 24397 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:32,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:32,872 INFO L93 Difference]: Finished difference Result 10774 states and 36855 transitions. [2022-01-18 07:46:32,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 07:46:32,872 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 [2022-01-18 07:46:32,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:32,894 INFO L225 Difference]: With dead ends: 10774 [2022-01-18 07:46:32,894 INFO L226 Difference]: Without dead ends: 10714 [2022-01-18 07:46:32,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1367 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=425, Invalid=4545, Unknown=0, NotChecked=0, Total=4970 [2022-01-18 07:46:32,894 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 503 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 3327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:32,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [503 Valid, 2445 Invalid, 3327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 3232 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:46:32,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10714 states. [2022-01-18 07:46:32,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10714 to 7002. [2022-01-18 07:46:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.483216683330953) internal successors, (24386), 7001 states have internal predecessors, (24386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:33,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24386 transitions. [2022-01-18 07:46:33,014 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24386 transitions. Word has length 39 [2022-01-18 07:46:33,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:33,014 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24386 transitions. [2022-01-18 07:46:33,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:33,014 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24386 transitions. [2022-01-18 07:46:33,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:33,024 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:33,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:33,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-01-18 07:46:33,024 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:33,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:33,024 INFO L85 PathProgramCache]: Analyzing trace with hash -289627288, now seen corresponding path program 262 times [2022-01-18 07:46:33,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:33,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916235265] [2022-01-18 07:46:33,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:33,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:33,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:33,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:33,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916235265] [2022-01-18 07:46:33,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916235265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:33,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:33,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:33,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454678893] [2022-01-18 07:46:33,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:33,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:33,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:33,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:33,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:33,225 INFO L87 Difference]: Start difference. First operand 7002 states and 24386 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:34,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:34,707 INFO L93 Difference]: Finished difference Result 9498 states and 32606 transitions. [2022-01-18 07:46:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 07:46:34,707 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:34,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:34,726 INFO L225 Difference]: With dead ends: 9498 [2022-01-18 07:46:34,726 INFO L226 Difference]: Without dead ends: 9455 [2022-01-18 07:46:34,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=276, Invalid=2804, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 07:46:34,726 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 453 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 2718 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:34,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 1924 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2718 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:34,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9455 states. [2022-01-18 07:46:34,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9455 to 7011. [2022-01-18 07:46:34,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7011 states, 7010 states have (on average 3.481740370898716) internal successors, (24407), 7010 states have internal predecessors, (24407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:34,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7011 states to 7011 states and 24407 transitions. [2022-01-18 07:46:34,834 INFO L78 Accepts]: Start accepts. Automaton has 7011 states and 24407 transitions. Word has length 39 [2022-01-18 07:46:34,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:34,834 INFO L470 AbstractCegarLoop]: Abstraction has 7011 states and 24407 transitions. [2022-01-18 07:46:34,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:34,835 INFO L276 IsEmpty]: Start isEmpty. Operand 7011 states and 24407 transitions. [2022-01-18 07:46:34,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:34,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:34,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:34,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-01-18 07:46:34,845 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:34,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:34,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1460479848, now seen corresponding path program 263 times [2022-01-18 07:46:34,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:34,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363434503] [2022-01-18 07:46:34,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:34,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:34,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:35,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:35,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363434503] [2022-01-18 07:46:35,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363434503] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:35,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:35,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:35,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456674455] [2022-01-18 07:46:35,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:35,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:35,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:35,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:35,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:35,043 INFO L87 Difference]: Start difference. First operand 7011 states and 24407 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:36,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:36,549 INFO L93 Difference]: Finished difference Result 9514 states and 32639 transitions. [2022-01-18 07:46:36,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-18 07:46:36,549 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 [2022-01-18 07:46:36,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:36,568 INFO L225 Difference]: With dead ends: 9514 [2022-01-18 07:46:36,568 INFO L226 Difference]: Without dead ends: 9414 [2022-01-18 07:46:36,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=292, Invalid=3014, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 07:46:36,568 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 463 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:36,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 1918 Invalid, 2756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2691 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:36,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9414 states. [2022-01-18 07:46:36,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9414 to 7013. [2022-01-18 07:46:36,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7013 states, 7012 states have (on average 3.4804620650313747) internal successors, (24405), 7012 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:36,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7013 states to 7013 states and 24405 transitions. [2022-01-18 07:46:36,680 INFO L78 Accepts]: Start accepts. Automaton has 7013 states and 24405 transitions. Word has length 39 [2022-01-18 07:46:36,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:36,680 INFO L470 AbstractCegarLoop]: Abstraction has 7013 states and 24405 transitions. [2022-01-18 07:46:36,680 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) [2022-01-18 07:46:36,680 INFO L276 IsEmpty]: Start isEmpty. Operand 7013 states and 24405 transitions. [2022-01-18 07:46:36,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:36,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:36,690 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] [2022-01-18 07:46:36,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-01-18 07:46:36,690 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:36,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:36,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2077698250, now seen corresponding path program 264 times [2022-01-18 07:46:36,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:36,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092271202] [2022-01-18 07:46:36,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:36,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:36,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:36,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:36,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092271202] [2022-01-18 07:46:36,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092271202] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:36,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:36,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:36,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054737835] [2022-01-18 07:46:36,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:36,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:36,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:36,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:36,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:36,890 INFO L87 Difference]: Start difference. First operand 7013 states and 24405 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:38,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:38,870 INFO L93 Difference]: Finished difference Result 10735 states and 36766 transitions. [2022-01-18 07:46:38,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 07:46:38,870 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:38,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:38,892 INFO L225 Difference]: With dead ends: 10735 [2022-01-18 07:46:38,892 INFO L226 Difference]: Without dead ends: 10689 [2022-01-18 07:46:38,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1321 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=400, Invalid=4430, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 07:46:38,892 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 485 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 3321 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 3393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 3321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:38,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 2451 Invalid, 3393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 3321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:46:38,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10689 states. [2022-01-18 07:46:38,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10689 to 7011. [2022-01-18 07:46:38,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7011 states, 7010 states have (on average 3.481027104136947) internal successors, (24402), 7010 states have internal predecessors, (24402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:39,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7011 states to 7011 states and 24402 transitions. [2022-01-18 07:46:39,012 INFO L78 Accepts]: Start accepts. Automaton has 7011 states and 24402 transitions. Word has length 39 [2022-01-18 07:46:39,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:39,012 INFO L470 AbstractCegarLoop]: Abstraction has 7011 states and 24402 transitions. [2022-01-18 07:46:39,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:39,013 INFO L276 IsEmpty]: Start isEmpty. Operand 7011 states and 24402 transitions. [2022-01-18 07:46:39,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:39,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:39,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:39,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-01-18 07:46:39,023 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:39,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:39,023 INFO L85 PathProgramCache]: Analyzing trace with hash 642630760, now seen corresponding path program 265 times [2022-01-18 07:46:39,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:39,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613120011] [2022-01-18 07:46:39,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:39,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:39,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:39,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:39,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613120011] [2022-01-18 07:46:39,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613120011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:39,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:39,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:39,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013159122] [2022-01-18 07:46:39,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:39,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:39,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:39,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:39,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:39,224 INFO L87 Difference]: Start difference. First operand 7011 states and 24402 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:40,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:40,682 INFO L93 Difference]: Finished difference Result 9435 states and 32446 transitions. [2022-01-18 07:46:40,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 07:46:40,683 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:40,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:40,702 INFO L225 Difference]: With dead ends: 9435 [2022-01-18 07:46:40,702 INFO L226 Difference]: Without dead ends: 9374 [2022-01-18 07:46:40,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=268, Invalid=2702, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 07:46:40,702 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 434 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1887 SdHoareTripleChecker+Invalid, 2752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:40,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 1887 Invalid, 2752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2691 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:40,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9374 states. [2022-01-18 07:46:40,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9374 to 7002. [2022-01-18 07:46:40,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 7001 states have (on average 3.4823596629052993) internal successors, (24380), 7001 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:40,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 24380 transitions. [2022-01-18 07:46:40,811 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 24380 transitions. Word has length 39 [2022-01-18 07:46:40,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:40,811 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 24380 transitions. [2022-01-18 07:46:40,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:40,811 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 24380 transitions. [2022-01-18 07:46:40,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:40,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:40,821 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] [2022-01-18 07:46:40,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-01-18 07:46:40,822 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:40,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:40,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1099422282, now seen corresponding path program 266 times [2022-01-18 07:46:40,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:40,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785532226] [2022-01-18 07:46:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:40,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:41,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:41,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:41,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785532226] [2022-01-18 07:46:41,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785532226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:41,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:41,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:41,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227168822] [2022-01-18 07:46:41,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:41,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:41,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:41,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:41,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:41,022 INFO L87 Difference]: Start difference. First operand 7002 states and 24380 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:42,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:42,533 INFO L93 Difference]: Finished difference Result 9537 states and 32775 transitions. [2022-01-18 07:46:42,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 07:46:42,533 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:42,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:42,553 INFO L225 Difference]: With dead ends: 9537 [2022-01-18 07:46:42,553 INFO L226 Difference]: Without dead ends: 9494 [2022-01-18 07:46:42,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=260, Invalid=2602, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:46:42,554 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 410 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:42,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 1992 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:42,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9494 states. [2022-01-18 07:46:42,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9494 to 6998. [2022-01-18 07:46:42,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6998 states, 6997 states have (on average 3.482921251965128) internal successors, (24370), 6997 states have internal predecessors, (24370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6998 states to 6998 states and 24370 transitions. [2022-01-18 07:46:42,665 INFO L78 Accepts]: Start accepts. Automaton has 6998 states and 24370 transitions. Word has length 39 [2022-01-18 07:46:42,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:42,666 INFO L470 AbstractCegarLoop]: Abstraction has 6998 states and 24370 transitions. [2022-01-18 07:46:42,666 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) [2022-01-18 07:46:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 6998 states and 24370 transitions. [2022-01-18 07:46:42,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:42,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:42,676 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] [2022-01-18 07:46:42,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-01-18 07:46:42,676 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:42,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:42,677 INFO L85 PathProgramCache]: Analyzing trace with hash -640072358, now seen corresponding path program 267 times [2022-01-18 07:46:42,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:42,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899867399] [2022-01-18 07:46:42,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:42,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:42,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:42,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:42,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899867399] [2022-01-18 07:46:42,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899867399] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:42,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:42,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:42,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149577595] [2022-01-18 07:46:42,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:42,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:42,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:42,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:42,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:42,875 INFO L87 Difference]: Start difference. First operand 6998 states and 24370 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:44,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:44,285 INFO L93 Difference]: Finished difference Result 9368 states and 32296 transitions. [2022-01-18 07:46:44,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 07:46:44,286 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:44,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:44,304 INFO L225 Difference]: With dead ends: 9368 [2022-01-18 07:46:44,304 INFO L226 Difference]: Without dead ends: 9317 [2022-01-18 07:46:44,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=242, Invalid=2410, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 07:46:44,305 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 406 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1849 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:44,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 1849 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:44,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9317 states. [2022-01-18 07:46:44,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9317 to 6992. [2022-01-18 07:46:44,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6992 states, 6991 states have (on average 3.483764840509226) internal successors, (24355), 6991 states have internal predecessors, (24355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:44,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6992 states to 6992 states and 24355 transitions. [2022-01-18 07:46:44,410 INFO L78 Accepts]: Start accepts. Automaton has 6992 states and 24355 transitions. Word has length 39 [2022-01-18 07:46:44,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:44,411 INFO L470 AbstractCegarLoop]: Abstraction has 6992 states and 24355 transitions. [2022-01-18 07:46:44,411 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) [2022-01-18 07:46:44,411 INFO L276 IsEmpty]: Start isEmpty. Operand 6992 states and 24355 transitions. [2022-01-18 07:46:44,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:44,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:44,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:44,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-01-18 07:46:44,421 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:44,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:44,421 INFO L85 PathProgramCache]: Analyzing trace with hash -265739850, now seen corresponding path program 268 times [2022-01-18 07:46:44,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:44,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389551259] [2022-01-18 07:46:44,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:44,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:44,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:44,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:44,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389551259] [2022-01-18 07:46:44,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389551259] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:44,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:44,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:44,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154612615] [2022-01-18 07:46:44,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:44,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:44,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:44,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:44,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:44,624 INFO L87 Difference]: Start difference. First operand 6992 states and 24355 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:48,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:48,325 INFO L93 Difference]: Finished difference Result 14103 states and 47968 transitions. [2022-01-18 07:46:48,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-01-18 07:46:48,325 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:48,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:48,354 INFO L225 Difference]: With dead ends: 14103 [2022-01-18 07:46:48,354 INFO L226 Difference]: Without dead ends: 13980 [2022-01-18 07:46:48,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4262 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=871, Invalid=11561, Unknown=0, NotChecked=0, Total=12432 [2022-01-18 07:46:48,355 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 675 mSDsluCounter, 4059 mSDsCounter, 0 mSdLazyCounter, 5238 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 3809 SdHoareTripleChecker+Invalid, 5401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 5238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:48,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [675 Valid, 3809 Invalid, 5401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 5238 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-18 07:46:48,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13980 states. [2022-01-18 07:46:48,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13980 to 7220. [2022-01-18 07:46:48,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7220 states, 7219 states have (on average 3.4849702174816457) internal successors, (25158), 7219 states have internal predecessors, (25158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:48,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7220 states to 7220 states and 25158 transitions. [2022-01-18 07:46:48,496 INFO L78 Accepts]: Start accepts. Automaton has 7220 states and 25158 transitions. Word has length 39 [2022-01-18 07:46:48,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:48,496 INFO L470 AbstractCegarLoop]: Abstraction has 7220 states and 25158 transitions. [2022-01-18 07:46:48,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:48,496 INFO L276 IsEmpty]: Start isEmpty. Operand 7220 states and 25158 transitions. [2022-01-18 07:46:48,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:48,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:48,507 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] [2022-01-18 07:46:48,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-01-18 07:46:48,507 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:48,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:48,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2023724264, now seen corresponding path program 269 times [2022-01-18 07:46:48,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:48,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473593477] [2022-01-18 07:46:48,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:48,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:48,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:48,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:48,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473593477] [2022-01-18 07:46:48,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473593477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:48,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:48,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:48,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345692854] [2022-01-18 07:46:48,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:48,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:48,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:48,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:48,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:48,706 INFO L87 Difference]: Start difference. First operand 7220 states and 25158 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:52,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:52,256 INFO L93 Difference]: Finished difference Result 13844 states and 47244 transitions. [2022-01-18 07:46:52,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-01-18 07:46:52,256 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 [2022-01-18 07:46:52,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:52,286 INFO L225 Difference]: With dead ends: 13844 [2022-01-18 07:46:52,286 INFO L226 Difference]: Without dead ends: 13679 [2022-01-18 07:46:52,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4073 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=834, Invalid=11156, Unknown=0, NotChecked=0, Total=11990 [2022-01-18 07:46:52,288 INFO L933 BasicCegarLoop]: 364 mSDtfsCounter, 639 mSDsluCounter, 4154 mSDsCounter, 0 mSdLazyCounter, 5389 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 3909 SdHoareTripleChecker+Invalid, 5549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 5389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:52,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 3909 Invalid, 5549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 5389 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 07:46:52,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13679 states. [2022-01-18 07:46:52,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13679 to 7212. [2022-01-18 07:46:52,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7212 states, 7211 states have (on average 3.4855082512827624) internal successors, (25134), 7211 states have internal predecessors, (25134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:52,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7212 states to 7212 states and 25134 transitions. [2022-01-18 07:46:52,429 INFO L78 Accepts]: Start accepts. Automaton has 7212 states and 25134 transitions. Word has length 39 [2022-01-18 07:46:52,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:52,429 INFO L470 AbstractCegarLoop]: Abstraction has 7212 states and 25134 transitions. [2022-01-18 07:46:52,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:52,429 INFO L276 IsEmpty]: Start isEmpty. Operand 7212 states and 25134 transitions. [2022-01-18 07:46:52,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:52,440 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:52,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:52,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-01-18 07:46:52,440 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:52,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:52,441 INFO L85 PathProgramCache]: Analyzing trace with hash 207695470, now seen corresponding path program 270 times [2022-01-18 07:46:52,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:52,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241759086] [2022-01-18 07:46:52,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:52,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:52,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:52,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:52,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241759086] [2022-01-18 07:46:52,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241759086] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:52,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:52,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:52,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463349114] [2022-01-18 07:46:52,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:52,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:52,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:52,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:52,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:52,640 INFO L87 Difference]: Start difference. First operand 7212 states and 25134 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:54,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:54,105 INFO L93 Difference]: Finished difference Result 9783 states and 33612 transitions. [2022-01-18 07:46:54,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 07:46:54,105 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 [2022-01-18 07:46:54,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:54,124 INFO L225 Difference]: With dead ends: 9783 [2022-01-18 07:46:54,124 INFO L226 Difference]: Without dead ends: 9665 [2022-01-18 07:46:54,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=328, Invalid=3212, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:46:54,125 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 457 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 2562 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:54,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 1988 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2562 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:54,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9665 states. [2022-01-18 07:46:54,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9665 to 7223. [2022-01-18 07:46:54,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7223 states, 7222 states have (on average 3.4851841595126003) internal successors, (25170), 7222 states have internal predecessors, (25170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:54,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7223 states to 7223 states and 25170 transitions. [2022-01-18 07:46:54,298 INFO L78 Accepts]: Start accepts. Automaton has 7223 states and 25170 transitions. Word has length 39 [2022-01-18 07:46:54,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:54,298 INFO L470 AbstractCegarLoop]: Abstraction has 7223 states and 25170 transitions. [2022-01-18 07:46:54,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:54,298 INFO L276 IsEmpty]: Start isEmpty. Operand 7223 states and 25170 transitions. [2022-01-18 07:46:54,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:54,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:54,308 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] [2022-01-18 07:46:54,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-01-18 07:46:54,309 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:54,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:54,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1380347692, now seen corresponding path program 271 times [2022-01-18 07:46:54,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:54,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513779742] [2022-01-18 07:46:54,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:54,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:54,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:54,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:54,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513779742] [2022-01-18 07:46:54,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513779742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:54,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:54,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:54,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694479473] [2022-01-18 07:46:54,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:54,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:54,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:54,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:54,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:54,510 INFO L87 Difference]: Start difference. First operand 7223 states and 25170 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:56,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:56,299 INFO L93 Difference]: Finished difference Result 10928 states and 37516 transitions. [2022-01-18 07:46:56,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 07:46:56,299 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:46:56,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:56,321 INFO L225 Difference]: With dead ends: 10928 [2022-01-18 07:46:56,321 INFO L226 Difference]: Without dead ends: 10868 [2022-01-18 07:46:56,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1175 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=391, Invalid=4031, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 07:46:56,322 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 488 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 2938 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2376 SdHoareTripleChecker+Invalid, 3017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:56,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2376 Invalid, 3017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2938 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:46:56,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10868 states. [2022-01-18 07:46:56,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10868 to 7221. [2022-01-18 07:46:56,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7221 states, 7220 states have (on average 3.4854570637119116) internal successors, (25165), 7220 states have internal predecessors, (25165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:56,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7221 states to 7221 states and 25165 transitions. [2022-01-18 07:46:56,443 INFO L78 Accepts]: Start accepts. Automaton has 7221 states and 25165 transitions. Word has length 39 [2022-01-18 07:46:56,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:56,443 INFO L470 AbstractCegarLoop]: Abstraction has 7221 states and 25165 transitions. [2022-01-18 07:46:56,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:56,443 INFO L276 IsEmpty]: Start isEmpty. Operand 7221 states and 25165 transitions. [2022-01-18 07:46:56,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:56,453 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:56,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:46:56,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-01-18 07:46:56,454 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:56,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:56,454 INFO L85 PathProgramCache]: Analyzing trace with hash -497055910, now seen corresponding path program 272 times [2022-01-18 07:46:56,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:56,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373539027] [2022-01-18 07:46:56,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:56,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:56,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:56,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:56,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373539027] [2022-01-18 07:46:56,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373539027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:56,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:56,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:56,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840057383] [2022-01-18 07:46:56,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:56,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:56,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:56,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:56,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:56,657 INFO L87 Difference]: Start difference. First operand 7221 states and 25165 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:58,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:46:58,034 INFO L93 Difference]: Finished difference Result 9621 states and 33238 transitions. [2022-01-18 07:46:58,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 07:46:58,034 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 [2022-01-18 07:46:58,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:46:58,053 INFO L225 Difference]: With dead ends: 9621 [2022-01-18 07:46:58,053 INFO L226 Difference]: Without dead ends: 9530 [2022-01-18 07:46:58,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=2598, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:46:58,053 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 431 mSDsluCounter, 2112 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 2593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:46:58,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 2010 Invalid, 2593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:46:58,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9530 states. [2022-01-18 07:46:58,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9530 to 7227. [2022-01-18 07:46:58,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7227 states, 7226 states have (on average 3.483808469415998) internal successors, (25174), 7226 states have internal predecessors, (25174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:58,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7227 states to 7227 states and 25174 transitions. [2022-01-18 07:46:58,192 INFO L78 Accepts]: Start accepts. Automaton has 7227 states and 25174 transitions. Word has length 39 [2022-01-18 07:46:58,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:46:58,192 INFO L470 AbstractCegarLoop]: Abstraction has 7227 states and 25174 transitions. [2022-01-18 07:46:58,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:46:58,193 INFO L276 IsEmpty]: Start isEmpty. Operand 7227 states and 25174 transitions. [2022-01-18 07:46:58,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:46:58,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:46:58,203 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] [2022-01-18 07:46:58,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-01-18 07:46:58,203 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:46:58,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:46:58,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1999538116, now seen corresponding path program 273 times [2022-01-18 07:46:58,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:46:58,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057559830] [2022-01-18 07:46:58,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:46:58,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:46:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:46:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:46:58,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:46:58,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057559830] [2022-01-18 07:46:58,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057559830] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:46:58,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:46:58,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:46:58,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345427083] [2022-01-18 07:46:58,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:46:58,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:46:58,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:46:58,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:46:58,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:46:58,401 INFO L87 Difference]: Start difference. First operand 7227 states and 25174 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:00,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:00,208 INFO L93 Difference]: Finished difference Result 10970 states and 37747 transitions. [2022-01-18 07:47:00,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-18 07:47:00,209 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:00,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:00,230 INFO L225 Difference]: With dead ends: 10970 [2022-01-18 07:47:00,230 INFO L226 Difference]: Without dead ends: 10870 [2022-01-18 07:47:00,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1124 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=3916, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 07:47:00,231 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 466 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 3157 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 3239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:00,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 2583 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3157 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:47:00,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10870 states. [2022-01-18 07:47:00,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10870 to 7227. [2022-01-18 07:47:00,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7227 states, 7226 states have (on average 3.483670080265707) internal successors, (25173), 7226 states have internal predecessors, (25173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:00,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7227 states to 7227 states and 25173 transitions. [2022-01-18 07:47:00,351 INFO L78 Accepts]: Start accepts. Automaton has 7227 states and 25173 transitions. Word has length 39 [2022-01-18 07:47:00,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:00,351 INFO L470 AbstractCegarLoop]: Abstraction has 7227 states and 25173 transitions. [2022-01-18 07:47:00,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:00,351 INFO L276 IsEmpty]: Start isEmpty. Operand 7227 states and 25173 transitions. [2022-01-18 07:47:00,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:00,361 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:00,361 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] [2022-01-18 07:47:00,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-01-18 07:47:00,362 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:00,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:00,362 INFO L85 PathProgramCache]: Analyzing trace with hash -824667376, now seen corresponding path program 274 times [2022-01-18 07:47:00,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:00,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717329674] [2022-01-18 07:47:00,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:00,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:00,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:00,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717329674] [2022-01-18 07:47:00,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717329674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:00,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:00,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:00,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937065987] [2022-01-18 07:47:00,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:00,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:00,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:00,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:00,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:00,562 INFO L87 Difference]: Start difference. First operand 7227 states and 25173 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:02,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:02,238 INFO L93 Difference]: Finished difference Result 9614 states and 33119 transitions. [2022-01-18 07:47:02,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-18 07:47:02,238 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:02,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:02,256 INFO L225 Difference]: With dead ends: 9614 [2022-01-18 07:47:02,256 INFO L226 Difference]: Without dead ends: 9559 [2022-01-18 07:47:02,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=327, Invalid=3213, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 07:47:02,256 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 434 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 2626 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 2705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:02,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 1905 Invalid, 2705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2626 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:47:02,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9559 states. [2022-01-18 07:47:02,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9559 to 7234. [2022-01-18 07:47:02,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7234 states, 7233 states have (on average 3.4829254804368865) internal successors, (25192), 7233 states have internal predecessors, (25192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:02,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7234 states to 7234 states and 25192 transitions. [2022-01-18 07:47:02,364 INFO L78 Accepts]: Start accepts. Automaton has 7234 states and 25192 transitions. Word has length 39 [2022-01-18 07:47:02,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:02,364 INFO L470 AbstractCegarLoop]: Abstraction has 7234 states and 25192 transitions. [2022-01-18 07:47:02,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:02,364 INFO L276 IsEmpty]: Start isEmpty. Operand 7234 states and 25192 transitions. [2022-01-18 07:47:02,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:02,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:02,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:02,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-01-18 07:47:02,375 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:02,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:02,375 INFO L85 PathProgramCache]: Analyzing trace with hash 347984846, now seen corresponding path program 275 times [2022-01-18 07:47:02,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:02,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82938174] [2022-01-18 07:47:02,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:02,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:02,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:02,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:02,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82938174] [2022-01-18 07:47:02,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82938174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:02,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:02,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:02,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022096730] [2022-01-18 07:47:02,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:02,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:02,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:02,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:02,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:02,573 INFO L87 Difference]: Start difference. First operand 7234 states and 25192 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:04,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:04,425 INFO L93 Difference]: Finished difference Result 10789 states and 37099 transitions. [2022-01-18 07:47:04,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-18 07:47:04,426 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:04,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:04,447 INFO L225 Difference]: With dead ends: 10789 [2022-01-18 07:47:04,447 INFO L226 Difference]: Without dead ends: 10729 [2022-01-18 07:47:04,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=384, Invalid=3906, Unknown=0, NotChecked=0, Total=4290 [2022-01-18 07:47:04,448 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 458 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 2997 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:04,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 2307 Invalid, 3075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2997 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:47:04,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10729 states. [2022-01-18 07:47:04,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10729 to 7232. [2022-01-18 07:47:04,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7232 states, 7231 states have (on average 3.4830590513068733) internal successors, (25186), 7231 states have internal predecessors, (25186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:04,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7232 states to 7232 states and 25186 transitions. [2022-01-18 07:47:04,567 INFO L78 Accepts]: Start accepts. Automaton has 7232 states and 25186 transitions. Word has length 39 [2022-01-18 07:47:04,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:04,567 INFO L470 AbstractCegarLoop]: Abstraction has 7232 states and 25186 transitions. [2022-01-18 07:47:04,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:04,567 INFO L276 IsEmpty]: Start isEmpty. Operand 7232 states and 25186 transitions. [2022-01-18 07:47:04,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:04,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:04,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:04,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-01-18 07:47:04,578 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:04,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:04,579 INFO L85 PathProgramCache]: Analyzing trace with hash 280239966, now seen corresponding path program 276 times [2022-01-18 07:47:04,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:04,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390234421] [2022-01-18 07:47:04,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:04,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:04,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:04,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:04,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390234421] [2022-01-18 07:47:04,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390234421] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:04,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:04,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:04,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992213505] [2022-01-18 07:47:04,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:04,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:04,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:04,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:04,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:04,779 INFO L87 Difference]: Start difference. First operand 7232 states and 25186 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:06,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:06,278 INFO L93 Difference]: Finished difference Result 9539 states and 32935 transitions. [2022-01-18 07:47:06,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-18 07:47:06,278 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:06,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:06,296 INFO L225 Difference]: With dead ends: 9539 [2022-01-18 07:47:06,296 INFO L226 Difference]: Without dead ends: 9496 [2022-01-18 07:47:06,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=283, Invalid=2797, Unknown=0, NotChecked=0, Total=3080 [2022-01-18 07:47:06,296 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 414 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:06,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [414 Valid, 1898 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2619 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:47:06,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9496 states. [2022-01-18 07:47:06,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9496 to 7241. [2022-01-18 07:47:06,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7241 states, 7240 states have (on average 3.481629834254144) internal successors, (25207), 7240 states have internal predecessors, (25207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:06,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7241 states to 7241 states and 25207 transitions. [2022-01-18 07:47:06,407 INFO L78 Accepts]: Start accepts. Automaton has 7241 states and 25207 transitions. Word has length 39 [2022-01-18 07:47:06,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:06,407 INFO L470 AbstractCegarLoop]: Abstraction has 7241 states and 25207 transitions. [2022-01-18 07:47:06,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:06,407 INFO L276 IsEmpty]: Start isEmpty. Operand 7241 states and 25207 transitions. [2022-01-18 07:47:06,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:06,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:06,418 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] [2022-01-18 07:47:06,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-01-18 07:47:06,418 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:06,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:06,418 INFO L85 PathProgramCache]: Analyzing trace with hash 2030347102, now seen corresponding path program 277 times [2022-01-18 07:47:06,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:06,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61395110] [2022-01-18 07:47:06,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:06,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:06,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:06,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:06,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61395110] [2022-01-18 07:47:06,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61395110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:06,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:06,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:06,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610008971] [2022-01-18 07:47:06,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:06,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:06,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:06,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:06,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:06,616 INFO L87 Difference]: Start difference. First operand 7241 states and 25207 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:08,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:08,067 INFO L93 Difference]: Finished difference Result 9626 states and 33129 transitions. [2022-01-18 07:47:08,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 07:47:08,067 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:08,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:08,086 INFO L225 Difference]: With dead ends: 9626 [2022-01-18 07:47:08,086 INFO L226 Difference]: Without dead ends: 9514 [2022-01-18 07:47:08,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=296, Invalid=2896, Unknown=0, NotChecked=0, Total=3192 [2022-01-18 07:47:08,087 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 410 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:08,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 1864 Invalid, 2589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:47:08,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9514 states. [2022-01-18 07:47:08,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9514 to 7241. [2022-01-18 07:47:08,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7241 states, 7240 states have (on average 3.4790055248618783) internal successors, (25188), 7240 states have internal predecessors, (25188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:08,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7241 states to 7241 states and 25188 transitions. [2022-01-18 07:47:08,196 INFO L78 Accepts]: Start accepts. Automaton has 7241 states and 25188 transitions. Word has length 39 [2022-01-18 07:47:08,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:08,196 INFO L470 AbstractCegarLoop]: Abstraction has 7241 states and 25188 transitions. [2022-01-18 07:47:08,196 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) [2022-01-18 07:47:08,196 INFO L276 IsEmpty]: Start isEmpty. Operand 7241 states and 25188 transitions. [2022-01-18 07:47:08,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:08,207 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:08,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:08,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-01-18 07:47:08,208 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:08,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:08,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1647401792, now seen corresponding path program 278 times [2022-01-18 07:47:08,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:08,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129607527] [2022-01-18 07:47:08,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:08,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:08,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:08,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129607527] [2022-01-18 07:47:08,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129607527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:08,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:08,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:08,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083977335] [2022-01-18 07:47:08,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:08,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:08,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:08,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:08,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:08,408 INFO L87 Difference]: Start difference. First operand 7241 states and 25188 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:10,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:10,186 INFO L93 Difference]: Finished difference Result 10746 states and 36970 transitions. [2022-01-18 07:47:10,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-18 07:47:10,186 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:10,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:10,207 INFO L225 Difference]: With dead ends: 10746 [2022-01-18 07:47:10,207 INFO L226 Difference]: Without dead ends: 10700 [2022-01-18 07:47:10,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=332, Invalid=3450, Unknown=0, NotChecked=0, Total=3782 [2022-01-18 07:47:10,207 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 434 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 3015 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 3074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:10,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 2277 Invalid, 3074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3015 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 07:47:10,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10700 states. [2022-01-18 07:47:10,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10700 to 7233. [2022-01-18 07:47:10,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7233 states, 7232 states have (on average 3.481194690265487) internal successors, (25176), 7232 states have internal predecessors, (25176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:10,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7233 states to 7233 states and 25176 transitions. [2022-01-18 07:47:10,322 INFO L78 Accepts]: Start accepts. Automaton has 7233 states and 25176 transitions. Word has length 39 [2022-01-18 07:47:10,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:10,323 INFO L470 AbstractCegarLoop]: Abstraction has 7233 states and 25176 transitions. [2022-01-18 07:47:10,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:10,323 INFO L276 IsEmpty]: Start isEmpty. Operand 7233 states and 25176 transitions. [2022-01-18 07:47:10,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:10,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:10,333 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] [2022-01-18 07:47:10,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-01-18 07:47:10,334 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:10,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:10,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1212498014, now seen corresponding path program 279 times [2022-01-18 07:47:10,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:10,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431644711] [2022-01-18 07:47:10,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:10,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:10,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:10,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431644711] [2022-01-18 07:47:10,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431644711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:10,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:10,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:10,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671270179] [2022-01-18 07:47:10,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:10,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:10,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:10,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:10,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:10,532 INFO L87 Difference]: Start difference. First operand 7233 states and 25176 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:11,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:11,931 INFO L93 Difference]: Finished difference Result 9529 states and 32891 transitions. [2022-01-18 07:47:11,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 07:47:11,931 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:11,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:11,951 INFO L225 Difference]: With dead ends: 9529 [2022-01-18 07:47:11,951 INFO L226 Difference]: Without dead ends: 9454 [2022-01-18 07:47:11,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=277, Invalid=2693, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 07:47:11,952 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 409 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:11,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 1818 Invalid, 2542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2489 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:47:11,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9454 states. [2022-01-18 07:47:12,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9454 to 7203. [2022-01-18 07:47:12,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7203 states, 7202 states have (on average 3.4861149680644266) internal successors, (25107), 7202 states have internal predecessors, (25107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:12,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7203 states to 7203 states and 25107 transitions. [2022-01-18 07:47:12,065 INFO L78 Accepts]: Start accepts. Automaton has 7203 states and 25107 transitions. Word has length 39 [2022-01-18 07:47:12,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:12,065 INFO L470 AbstractCegarLoop]: Abstraction has 7203 states and 25107 transitions. [2022-01-18 07:47:12,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:12,065 INFO L276 IsEmpty]: Start isEmpty. Operand 7203 states and 25107 transitions. [2022-01-18 07:47:12,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:12,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:12,075 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] [2022-01-18 07:47:12,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-01-18 07:47:12,075 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:12,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:12,076 INFO L85 PathProgramCache]: Analyzing trace with hash -70205104, now seen corresponding path program 280 times [2022-01-18 07:47:12,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:12,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438380836] [2022-01-18 07:47:12,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:12,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:12,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:12,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438380836] [2022-01-18 07:47:12,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438380836] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:12,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:12,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:12,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104693955] [2022-01-18 07:47:12,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:12,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:12,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:12,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:12,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:12,280 INFO L87 Difference]: Start difference. First operand 7203 states and 25107 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:13,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:13,704 INFO L93 Difference]: Finished difference Result 9464 states and 32745 transitions. [2022-01-18 07:47:13,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 07:47:13,704 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:13,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:13,722 INFO L225 Difference]: With dead ends: 9464 [2022-01-18 07:47:13,722 INFO L226 Difference]: Without dead ends: 9406 [2022-01-18 07:47:13,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=266, Invalid=2596, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:47:13,722 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 386 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 2495 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 2545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:13,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1804 Invalid, 2545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2495 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:47:13,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9406 states. [2022-01-18 07:47:13,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9406 to 7202. [2022-01-18 07:47:13,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7202 states, 7201 states have (on average 3.486321344257742) internal successors, (25105), 7201 states have internal predecessors, (25105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:13,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7202 states to 7202 states and 25105 transitions. [2022-01-18 07:47:13,828 INFO L78 Accepts]: Start accepts. Automaton has 7202 states and 25105 transitions. Word has length 39 [2022-01-18 07:47:13,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:13,829 INFO L470 AbstractCegarLoop]: Abstraction has 7202 states and 25105 transitions. [2022-01-18 07:47:13,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:13,829 INFO L276 IsEmpty]: Start isEmpty. Operand 7202 states and 25105 transitions. [2022-01-18 07:47:13,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:13,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:13,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:13,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-01-18 07:47:13,839 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:13,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:13,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1268551484, now seen corresponding path program 281 times [2022-01-18 07:47:13,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:13,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067864077] [2022-01-18 07:47:13,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:13,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:14,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:14,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:14,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067864077] [2022-01-18 07:47:14,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067864077] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:14,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:14,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:14,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068535402] [2022-01-18 07:47:14,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:14,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:14,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:14,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:14,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:14,038 INFO L87 Difference]: Start difference. First operand 7202 states and 25105 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:15,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:15,414 INFO L93 Difference]: Finished difference Result 9412 states and 32634 transitions. [2022-01-18 07:47:15,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:47:15,414 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:15,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:15,434 INFO L225 Difference]: With dead ends: 9412 [2022-01-18 07:47:15,434 INFO L226 Difference]: Without dead ends: 9280 [2022-01-18 07:47:15,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=260, Invalid=2602, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:47:15,435 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 373 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 2555 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 2606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:15,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 1905 Invalid, 2606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2555 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:47:15,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9280 states. [2022-01-18 07:47:15,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9280 to 7163. [2022-01-18 07:47:15,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7163 states, 7162 states have (on average 3.488829935772131) internal successors, (24987), 7162 states have internal predecessors, (24987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:15,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7163 states to 7163 states and 24987 transitions. [2022-01-18 07:47:15,546 INFO L78 Accepts]: Start accepts. Automaton has 7163 states and 24987 transitions. Word has length 39 [2022-01-18 07:47:15,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:15,546 INFO L470 AbstractCegarLoop]: Abstraction has 7163 states and 24987 transitions. [2022-01-18 07:47:15,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:15,546 INFO L276 IsEmpty]: Start isEmpty. Operand 7163 states and 24987 transitions. [2022-01-18 07:47:15,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:15,556 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:15,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:15,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-01-18 07:47:15,557 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:15,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:15,557 INFO L85 PathProgramCache]: Analyzing trace with hash 828827482, now seen corresponding path program 282 times [2022-01-18 07:47:15,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:15,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299128450] [2022-01-18 07:47:15,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:15,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:15,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:15,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:15,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299128450] [2022-01-18 07:47:15,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299128450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:15,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:15,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:15,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081081273] [2022-01-18 07:47:15,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:15,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:15,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:15,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:15,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:15,758 INFO L87 Difference]: Start difference. First operand 7163 states and 24987 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:17,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:17,122 INFO L93 Difference]: Finished difference Result 9366 states and 32487 transitions. [2022-01-18 07:47:17,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-18 07:47:17,122 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 [2022-01-18 07:47:17,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:17,142 INFO L225 Difference]: With dead ends: 9366 [2022-01-18 07:47:17,142 INFO L226 Difference]: Without dead ends: 9299 [2022-01-18 07:47:17,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=266, Invalid=2596, Unknown=0, NotChecked=0, Total=2862 [2022-01-18 07:47:17,143 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 399 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:17,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 1805 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:47:17,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9299 states. [2022-01-18 07:47:17,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9299 to 7181. [2022-01-18 07:47:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7181 states, 7180 states have (on average 3.4866295264623957) internal successors, (25034), 7180 states have internal predecessors, (25034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:17,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7181 states to 7181 states and 25034 transitions. [2022-01-18 07:47:17,283 INFO L78 Accepts]: Start accepts. Automaton has 7181 states and 25034 transitions. Word has length 39 [2022-01-18 07:47:17,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:17,283 INFO L470 AbstractCegarLoop]: Abstraction has 7181 states and 25034 transitions. [2022-01-18 07:47:17,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:17,283 INFO L276 IsEmpty]: Start isEmpty. Operand 7181 states and 25034 transitions. [2022-01-18 07:47:17,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:17,295 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:17,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:17,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-01-18 07:47:17,295 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:17,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:17,295 INFO L85 PathProgramCache]: Analyzing trace with hash 656684264, now seen corresponding path program 283 times [2022-01-18 07:47:17,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:17,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86992441] [2022-01-18 07:47:17,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:17,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:17,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:17,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:17,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86992441] [2022-01-18 07:47:17,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86992441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:17,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:17,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:17,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982730723] [2022-01-18 07:47:17,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:17,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:17,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:17,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:17,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:17,509 INFO L87 Difference]: Start difference. First operand 7181 states and 25034 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:18,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:18,742 INFO L93 Difference]: Finished difference Result 9318 states and 32333 transitions. [2022-01-18 07:47:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-18 07:47:18,742 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:18,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:18,760 INFO L225 Difference]: With dead ends: 9318 [2022-01-18 07:47:18,761 INFO L226 Difference]: Without dead ends: 9255 [2022-01-18 07:47:18,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 07:47:18,761 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 369 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:18,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 1685 Invalid, 2292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:47:18,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9255 states. [2022-01-18 07:47:18,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9255 to 7213. [2022-01-18 07:47:18,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7213 states, 7212 states have (on average 3.482806433721575) internal successors, (25118), 7212 states have internal predecessors, (25118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:18,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7213 states to 7213 states and 25118 transitions. [2022-01-18 07:47:18,868 INFO L78 Accepts]: Start accepts. Automaton has 7213 states and 25118 transitions. Word has length 39 [2022-01-18 07:47:18,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:18,868 INFO L470 AbstractCegarLoop]: Abstraction has 7213 states and 25118 transitions. [2022-01-18 07:47:18,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:18,868 INFO L276 IsEmpty]: Start isEmpty. Operand 7213 states and 25118 transitions. [2022-01-18 07:47:18,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:18,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:18,878 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] [2022-01-18 07:47:18,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-01-18 07:47:18,878 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:18,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:18,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1146149892, now seen corresponding path program 284 times [2022-01-18 07:47:18,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:18,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815142548] [2022-01-18 07:47:18,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:18,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:19,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:19,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815142548] [2022-01-18 07:47:19,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815142548] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:19,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:19,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:19,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638465651] [2022-01-18 07:47:19,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:19,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:19,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:19,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:19,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:19,080 INFO L87 Difference]: Start difference. First operand 7213 states and 25118 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:20,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:20,313 INFO L93 Difference]: Finished difference Result 9326 states and 32345 transitions. [2022-01-18 07:47:20,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-18 07:47:20,314 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:20,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:20,333 INFO L225 Difference]: With dead ends: 9326 [2022-01-18 07:47:20,333 INFO L226 Difference]: Without dead ends: 9191 [2022-01-18 07:47:20,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=246, Invalid=2406, Unknown=0, NotChecked=0, Total=2652 [2022-01-18 07:47:20,334 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 361 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 2301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:20,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1764 Invalid, 2301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:47:20,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9191 states. [2022-01-18 07:47:20,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9191 to 7169. [2022-01-18 07:47:20,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7169 states, 7168 states have (on average 3.4877232142857144) internal successors, (25000), 7168 states have internal predecessors, (25000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:20,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7169 states to 7169 states and 25000 transitions. [2022-01-18 07:47:20,483 INFO L78 Accepts]: Start accepts. Automaton has 7169 states and 25000 transitions. Word has length 39 [2022-01-18 07:47:20,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:20,483 INFO L470 AbstractCegarLoop]: Abstraction has 7169 states and 25000 transitions. [2022-01-18 07:47:20,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:20,483 INFO L276 IsEmpty]: Start isEmpty. Operand 7169 states and 25000 transitions. [2022-01-18 07:47:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:20,494 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:20,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:20,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-01-18 07:47:20,494 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:20,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:20,494 INFO L85 PathProgramCache]: Analyzing trace with hash 523340236, now seen corresponding path program 285 times [2022-01-18 07:47:20,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:20,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735597429] [2022-01-18 07:47:20,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:20,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:20,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:20,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:20,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735597429] [2022-01-18 07:47:20,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735597429] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:20,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:20,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:20,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512839169] [2022-01-18 07:47:20,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:20,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:20,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:20,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:20,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:20,700 INFO L87 Difference]: Start difference. First operand 7169 states and 25000 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:23,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:23,437 INFO L93 Difference]: Finished difference Result 11658 states and 39656 transitions. [2022-01-18 07:47:23,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-01-18 07:47:23,437 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:23,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:23,461 INFO L225 Difference]: With dead ends: 11658 [2022-01-18 07:47:23,461 INFO L226 Difference]: Without dead ends: 11567 [2022-01-18 07:47:23,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3033 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=710, Invalid=8602, Unknown=0, NotChecked=0, Total=9312 [2022-01-18 07:47:23,462 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 643 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 4103 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 4225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 4103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:23,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 3206 Invalid, 4225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 4103 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:47:23,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11567 states. [2022-01-18 07:47:23,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11567 to 7243. [2022-01-18 07:47:23,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7243 states, 7242 states have (on average 3.4864678265672464) internal successors, (25249), 7242 states have internal predecessors, (25249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:23,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7243 states to 7243 states and 25249 transitions. [2022-01-18 07:47:23,597 INFO L78 Accepts]: Start accepts. Automaton has 7243 states and 25249 transitions. Word has length 39 [2022-01-18 07:47:23,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:23,597 INFO L470 AbstractCegarLoop]: Abstraction has 7243 states and 25249 transitions. [2022-01-18 07:47:23,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:23,597 INFO L276 IsEmpty]: Start isEmpty. Operand 7243 states and 25249 transitions. [2022-01-18 07:47:23,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:23,608 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:23,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:23,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-01-18 07:47:23,608 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:23,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:23,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1196275734, now seen corresponding path program 286 times [2022-01-18 07:47:23,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:23,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57348636] [2022-01-18 07:47:23,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:23,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:23,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:23,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:23,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57348636] [2022-01-18 07:47:23,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57348636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:23,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:23,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:23,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027471711] [2022-01-18 07:47:23,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:23,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:23,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:23,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:23,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:23,813 INFO L87 Difference]: Start difference. First operand 7243 states and 25249 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:27,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:27,655 INFO L93 Difference]: Finished difference Result 14514 states and 49077 transitions. [2022-01-18 07:47:27,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-01-18 07:47:27,655 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:27,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:27,686 INFO L225 Difference]: With dead ends: 14514 [2022-01-18 07:47:27,686 INFO L226 Difference]: Without dead ends: 14471 [2022-01-18 07:47:27,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6466 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1122, Invalid=16434, Unknown=0, NotChecked=0, Total=17556 [2022-01-18 07:47:27,688 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 720 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 4916 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 5063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 4916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:27,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 3592 Invalid, 5063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 4916 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:47:27,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14471 states. [2022-01-18 07:47:27,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14471 to 7329. [2022-01-18 07:47:27,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7329 states, 7328 states have (on average 3.488400655021834) internal successors, (25563), 7328 states have internal predecessors, (25563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:27,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7329 states to 7329 states and 25563 transitions. [2022-01-18 07:47:27,845 INFO L78 Accepts]: Start accepts. Automaton has 7329 states and 25563 transitions. Word has length 39 [2022-01-18 07:47:27,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:27,845 INFO L470 AbstractCegarLoop]: Abstraction has 7329 states and 25563 transitions. [2022-01-18 07:47:27,845 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) [2022-01-18 07:47:27,845 INFO L276 IsEmpty]: Start isEmpty. Operand 7329 states and 25563 transitions. [2022-01-18 07:47:27,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:27,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:27,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:27,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-01-18 07:47:27,856 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:27,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:27,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1318093260, now seen corresponding path program 287 times [2022-01-18 07:47:27,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:27,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540879619] [2022-01-18 07:47:27,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:27,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:28,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:28,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:28,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540879619] [2022-01-18 07:47:28,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540879619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:28,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:28,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:28,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120181703] [2022-01-18 07:47:28,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:28,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:28,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:28,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:28,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:28,069 INFO L87 Difference]: Start difference. First operand 7329 states and 25563 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:31,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:31,766 INFO L93 Difference]: Finished difference Result 14955 states and 50718 transitions. [2022-01-18 07:47:31,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-01-18 07:47:31,766 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:31,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:31,806 INFO L225 Difference]: With dead ends: 14955 [2022-01-18 07:47:31,806 INFO L226 Difference]: Without dead ends: 14879 [2022-01-18 07:47:31,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5920 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1053, Invalid=15203, Unknown=0, NotChecked=0, Total=16256 [2022-01-18 07:47:31,808 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 729 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 4739 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 4902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 4739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:31,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [729 Valid, 3428 Invalid, 4902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 4739 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 07:47:31,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14879 states. [2022-01-18 07:47:31,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14879 to 7073. [2022-01-18 07:47:31,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7073 states, 7072 states have (on average 3.485718325791855) internal successors, (24651), 7072 states have internal predecessors, (24651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:31,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7073 states to 7073 states and 24651 transitions. [2022-01-18 07:47:31,988 INFO L78 Accepts]: Start accepts. Automaton has 7073 states and 24651 transitions. Word has length 39 [2022-01-18 07:47:31,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:31,989 INFO L470 AbstractCegarLoop]: Abstraction has 7073 states and 24651 transitions. [2022-01-18 07:47:31,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 7073 states and 24651 transitions. [2022-01-18 07:47:32,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:32,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:32,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:32,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-01-18 07:47:32,000 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:32,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:32,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1938527660, now seen corresponding path program 288 times [2022-01-18 07:47:32,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:32,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635761138] [2022-01-18 07:47:32,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:32,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:32,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:32,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:32,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635761138] [2022-01-18 07:47:32,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635761138] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:32,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:32,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:32,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879129647] [2022-01-18 07:47:32,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:32,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:32,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:32,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:32,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:32,225 INFO L87 Difference]: Start difference. First operand 7073 states and 24651 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:34,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:34,011 INFO L93 Difference]: Finished difference Result 9450 states and 32733 transitions. [2022-01-18 07:47:34,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 07:47:34,012 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:34,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:34,062 INFO L225 Difference]: With dead ends: 9450 [2022-01-18 07:47:34,062 INFO L226 Difference]: Without dead ends: 9383 [2022-01-18 07:47:34,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1446 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=461, Invalid=4651, Unknown=0, NotChecked=0, Total=5112 [2022-01-18 07:47:34,062 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 459 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 2529 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 2636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:34,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 1765 Invalid, 2636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2529 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:47:34,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9383 states. [2022-01-18 07:47:34,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9383 to 7097. [2022-01-18 07:47:34,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7097 states, 7096 states have (on average 3.4849210822998873) internal successors, (24729), 7096 states have internal predecessors, (24729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:34,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7097 states to 7097 states and 24729 transitions. [2022-01-18 07:47:34,172 INFO L78 Accepts]: Start accepts. Automaton has 7097 states and 24729 transitions. Word has length 39 [2022-01-18 07:47:34,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:34,173 INFO L470 AbstractCegarLoop]: Abstraction has 7097 states and 24729 transitions. [2022-01-18 07:47:34,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:34,173 INFO L276 IsEmpty]: Start isEmpty. Operand 7097 states and 24729 transitions. [2022-01-18 07:47:34,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:34,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:34,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:34,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-01-18 07:47:34,183 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:34,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:34,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1807932812, now seen corresponding path program 289 times [2022-01-18 07:47:34,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:34,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801039736] [2022-01-18 07:47:34,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:34,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:34,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:34,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:34,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801039736] [2022-01-18 07:47:34,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801039736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:34,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:34,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:34,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368449645] [2022-01-18 07:47:34,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:34,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:34,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:34,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:34,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:34,384 INFO L87 Difference]: Start difference. First operand 7097 states and 24729 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:35,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:35,982 INFO L93 Difference]: Finished difference Result 9451 states and 32685 transitions. [2022-01-18 07:47:35,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-18 07:47:35,982 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:35,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:36,001 INFO L225 Difference]: With dead ends: 9451 [2022-01-18 07:47:36,001 INFO L226 Difference]: Without dead ends: 9388 [2022-01-18 07:47:36,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=419, Invalid=4003, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 07:47:36,002 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 431 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 2472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:36,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 1673 Invalid, 2472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 07:47:36,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9388 states. [2022-01-18 07:47:36,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9388 to 7097. [2022-01-18 07:47:36,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7097 states, 7096 states have (on average 3.4843573844419393) internal successors, (24725), 7096 states have internal predecessors, (24725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:36,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7097 states to 7097 states and 24725 transitions. [2022-01-18 07:47:36,111 INFO L78 Accepts]: Start accepts. Automaton has 7097 states and 24725 transitions. Word has length 39 [2022-01-18 07:47:36,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:36,111 INFO L470 AbstractCegarLoop]: Abstraction has 7097 states and 24725 transitions. [2022-01-18 07:47:36,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 7097 states and 24725 transitions. [2022-01-18 07:47:36,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:36,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:36,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:36,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-01-18 07:47:36,121 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:36,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:36,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1672254220, now seen corresponding path program 290 times [2022-01-18 07:47:36,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:36,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124717265] [2022-01-18 07:47:36,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:36,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:36,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:36,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:36,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124717265] [2022-01-18 07:47:36,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124717265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:36,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:36,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:36,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774295015] [2022-01-18 07:47:36,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:36,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:36,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:36,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:36,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:36,322 INFO L87 Difference]: Start difference. First operand 7097 states and 24725 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:38,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:38,746 INFO L93 Difference]: Finished difference Result 10809 states and 37221 transitions. [2022-01-18 07:47:38,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-01-18 07:47:38,747 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 [2022-01-18 07:47:38,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:38,767 INFO L225 Difference]: With dead ends: 10809 [2022-01-18 07:47:38,767 INFO L226 Difference]: Without dead ends: 10766 [2022-01-18 07:47:38,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2910 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=668, Invalid=8262, Unknown=0, NotChecked=0, Total=8930 [2022-01-18 07:47:38,768 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 550 mSDsluCounter, 2349 mSDsCounter, 0 mSdLazyCounter, 3048 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 3048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:38,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [550 Valid, 2153 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 3048 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 07:47:38,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2022-01-18 07:47:38,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 7124. [2022-01-18 07:47:38,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7124 states, 7123 states have (on average 3.4846272637933455) internal successors, (24821), 7123 states have internal predecessors, (24821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:38,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7124 states to 7124 states and 24821 transitions. [2022-01-18 07:47:38,883 INFO L78 Accepts]: Start accepts. Automaton has 7124 states and 24821 transitions. Word has length 39 [2022-01-18 07:47:38,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:38,883 INFO L470 AbstractCegarLoop]: Abstraction has 7124 states and 24821 transitions. [2022-01-18 07:47:38,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:38,883 INFO L276 IsEmpty]: Start isEmpty. Operand 7124 states and 24821 transitions. [2022-01-18 07:47:38,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:38,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:38,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:38,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-01-18 07:47:38,894 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:38,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:38,894 INFO L85 PathProgramCache]: Analyzing trace with hash -108344082, now seen corresponding path program 291 times [2022-01-18 07:47:38,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:38,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905156026] [2022-01-18 07:47:38,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:38,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:39,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:39,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:39,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905156026] [2022-01-18 07:47:39,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905156026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:39,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:39,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:39,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233503687] [2022-01-18 07:47:39,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:39,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:39,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:39,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:39,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:39,093 INFO L87 Difference]: Start difference. First operand 7124 states and 24821 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:41,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:41,704 INFO L93 Difference]: Finished difference Result 11996 states and 41227 transitions. [2022-01-18 07:47:41,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-01-18 07:47:41,704 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:41,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:41,728 INFO L225 Difference]: With dead ends: 11996 [2022-01-18 07:47:41,728 INFO L226 Difference]: Without dead ends: 11944 [2022-01-18 07:47:41,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3381 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=708, Invalid=9392, Unknown=0, NotChecked=0, Total=10100 [2022-01-18 07:47:41,729 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 584 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 3316 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 3316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:41,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [584 Valid, 2511 Invalid, 3460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 3316 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 07:47:41,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11944 states. [2022-01-18 07:47:41,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11944 to 7120. [2022-01-18 07:47:41,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7120 states, 7119 states have (on average 3.4846186262115464) internal successors, (24807), 7119 states have internal predecessors, (24807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:41,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7120 states to 7120 states and 24807 transitions. [2022-01-18 07:47:41,908 INFO L78 Accepts]: Start accepts. Automaton has 7120 states and 24807 transitions. Word has length 39 [2022-01-18 07:47:41,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:41,908 INFO L470 AbstractCegarLoop]: Abstraction has 7120 states and 24807 transitions. [2022-01-18 07:47:41,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:41,908 INFO L276 IsEmpty]: Start isEmpty. Operand 7120 states and 24807 transitions. [2022-01-18 07:47:41,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:41,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:41,919 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] [2022-01-18 07:47:41,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-01-18 07:47:41,919 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:41,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:41,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1704229506, now seen corresponding path program 292 times [2022-01-18 07:47:41,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:41,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596193567] [2022-01-18 07:47:41,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:41,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:42,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:42,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596193567] [2022-01-18 07:47:42,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596193567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:42,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:42,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:42,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164896177] [2022-01-18 07:47:42,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:42,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:42,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:42,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:42,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:42,128 INFO L87 Difference]: Start difference. First operand 7120 states and 24807 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:43,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:43,743 INFO L93 Difference]: Finished difference Result 9543 states and 32904 transitions. [2022-01-18 07:47:43,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-18 07:47:43,743 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 [2022-01-18 07:47:43,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:43,763 INFO L225 Difference]: With dead ends: 9543 [2022-01-18 07:47:43,763 INFO L226 Difference]: Without dead ends: 9488 [2022-01-18 07:47:43,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1185 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=418, Invalid=4004, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 07:47:43,763 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 436 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:43,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 1650 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:47:43,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9488 states. [2022-01-18 07:47:43,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9488 to 7122. [2022-01-18 07:47:43,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7122 states, 7121 states have (on average 3.4840612273557086) internal successors, (24810), 7121 states have internal predecessors, (24810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:43,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7122 states to 7122 states and 24810 transitions. [2022-01-18 07:47:43,873 INFO L78 Accepts]: Start accepts. Automaton has 7122 states and 24810 transitions. Word has length 39 [2022-01-18 07:47:43,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:43,873 INFO L470 AbstractCegarLoop]: Abstraction has 7122 states and 24810 transitions. [2022-01-18 07:47:43,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:43,873 INFO L276 IsEmpty]: Start isEmpty. Operand 7122 states and 24810 transitions. [2022-01-18 07:47:43,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:43,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:43,883 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] [2022-01-18 07:47:43,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-01-18 07:47:43,883 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:43,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:43,884 INFO L85 PathProgramCache]: Analyzing trace with hash -531577284, now seen corresponding path program 293 times [2022-01-18 07:47:43,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:43,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452648058] [2022-01-18 07:47:43,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:43,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:44,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:44,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:44,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452648058] [2022-01-18 07:47:44,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452648058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:44,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:44,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:44,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349811250] [2022-01-18 07:47:44,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:44,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:44,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:44,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:44,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:44,084 INFO L87 Difference]: Start difference. First operand 7122 states and 24810 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:45,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:45,812 INFO L93 Difference]: Finished difference Result 10630 states and 36630 transitions. [2022-01-18 07:47:45,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-01-18 07:47:45,812 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:45,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:45,835 INFO L225 Difference]: With dead ends: 10630 [2022-01-18 07:47:45,835 INFO L226 Difference]: Without dead ends: 10584 [2022-01-18 07:47:45,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1282 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=419, Invalid=4273, Unknown=0, NotChecked=0, Total=4692 [2022-01-18 07:47:45,836 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 454 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 2700 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:45,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 1993 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2700 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:47:45,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10584 states. [2022-01-18 07:47:45,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10584 to 7126. [2022-01-18 07:47:45,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7126 states, 7125 states have (on average 3.483228070175439) internal successors, (24818), 7125 states have internal predecessors, (24818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:45,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7126 states to 7126 states and 24818 transitions. [2022-01-18 07:47:45,982 INFO L78 Accepts]: Start accepts. Automaton has 7126 states and 24818 transitions. Word has length 39 [2022-01-18 07:47:45,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:45,982 INFO L470 AbstractCegarLoop]: Abstraction has 7126 states and 24818 transitions. [2022-01-18 07:47:45,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:45,982 INFO L276 IsEmpty]: Start isEmpty. Operand 7126 states and 24818 transitions. [2022-01-18 07:47:45,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:45,993 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:45,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:45,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-01-18 07:47:45,993 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:45,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:45,993 INFO L85 PathProgramCache]: Analyzing trace with hash -779043446, now seen corresponding path program 294 times [2022-01-18 07:47:45,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:45,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700113860] [2022-01-18 07:47:45,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:45,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:46,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:46,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:46,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700113860] [2022-01-18 07:47:46,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700113860] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:46,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:46,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:46,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722070447] [2022-01-18 07:47:46,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:46,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:46,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:46,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:46,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:46,204 INFO L87 Difference]: Start difference. First operand 7126 states and 24818 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:47,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:47,902 INFO L93 Difference]: Finished difference Result 9486 states and 32772 transitions. [2022-01-18 07:47:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-18 07:47:47,902 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:47,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:47,922 INFO L225 Difference]: With dead ends: 9486 [2022-01-18 07:47:47,922 INFO L226 Difference]: Without dead ends: 9437 [2022-01-18 07:47:47,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1185 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=410, Invalid=4012, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 07:47:47,923 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 431 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 2507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:47,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 1697 Invalid, 2507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 07:47:47,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9437 states. [2022-01-18 07:47:48,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9437 to 7116. [2022-01-18 07:47:48,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7116 states, 7115 states have (on average 3.4854532677442025) internal successors, (24799), 7115 states have internal predecessors, (24799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7116 states to 7116 states and 24799 transitions. [2022-01-18 07:47:48,035 INFO L78 Accepts]: Start accepts. Automaton has 7116 states and 24799 transitions. Word has length 39 [2022-01-18 07:47:48,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:48,035 INFO L470 AbstractCegarLoop]: Abstraction has 7116 states and 24799 transitions. [2022-01-18 07:47:48,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:48,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7116 states and 24799 transitions. [2022-01-18 07:47:48,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:48,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:48,046 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] [2022-01-18 07:47:48,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-01-18 07:47:48,046 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:48,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:48,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1420112470, now seen corresponding path program 295 times [2022-01-18 07:47:48,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:48,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337515767] [2022-01-18 07:47:48,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:48,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:48,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:48,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:48,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337515767] [2022-01-18 07:47:48,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337515767] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:48,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:48,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:48,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022281076] [2022-01-18 07:47:48,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:48,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:48,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:48,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:48,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:48,250 INFO L87 Difference]: Start difference. First operand 7116 states and 24799 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:50,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:50,986 INFO L93 Difference]: Finished difference Result 11467 states and 39124 transitions. [2022-01-18 07:47:50,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-01-18 07:47:50,986 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-18 07:47:50,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:51,008 INFO L225 Difference]: With dead ends: 11467 [2022-01-18 07:47:51,008 INFO L226 Difference]: Without dead ends: 11400 [2022-01-18 07:47:51,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2716 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=659, Invalid=7897, Unknown=0, NotChecked=0, Total=8556 [2022-01-18 07:47:51,009 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 602 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 4185 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 4288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 4185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:51,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [602 Valid, 3211 Invalid, 4288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 4185 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 07:47:51,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11400 states. [2022-01-18 07:47:51,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11400 to 7134. [2022-01-18 07:47:51,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7134 states, 7133 states have (on average 3.483387074162344) internal successors, (24847), 7133 states have internal predecessors, (24847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:51,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7134 states to 7134 states and 24847 transitions. [2022-01-18 07:47:51,132 INFO L78 Accepts]: Start accepts. Automaton has 7134 states and 24847 transitions. Word has length 39 [2022-01-18 07:47:51,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:51,132 INFO L470 AbstractCegarLoop]: Abstraction has 7134 states and 24847 transitions. [2022-01-18 07:47:51,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:51,132 INFO L276 IsEmpty]: Start isEmpty. Operand 7134 states and 24847 transitions. [2022-01-18 07:47:51,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:51,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:51,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:51,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-01-18 07:47:51,143 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:51,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:51,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1155238856, now seen corresponding path program 296 times [2022-01-18 07:47:51,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:51,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699522233] [2022-01-18 07:47:51,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:51,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:51,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:51,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:51,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699522233] [2022-01-18 07:47:51,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699522233] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:51,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:51,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:51,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535720312] [2022-01-18 07:47:51,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:51,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:51,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:51,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:51,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:51,344 INFO L87 Difference]: Start difference. First operand 7134 states and 24847 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:55,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 07:47:55,048 INFO L93 Difference]: Finished difference Result 14265 states and 48416 transitions. [2022-01-18 07:47:55,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-01-18 07:47:55,049 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 [2022-01-18 07:47:55,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 07:47:55,079 INFO L225 Difference]: With dead ends: 14265 [2022-01-18 07:47:55,079 INFO L226 Difference]: Without dead ends: 14222 [2022-01-18 07:47:55,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5259 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=998, Invalid=13764, Unknown=0, NotChecked=0, Total=14762 [2022-01-18 07:47:55,080 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 680 mSDsluCounter, 3689 mSDsCounter, 0 mSdLazyCounter, 4981 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 5109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 4981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:55,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 3586 Invalid, 5109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 4981 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-18 07:47:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14222 states. [2022-01-18 07:47:55,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14222 to 7152. [2022-01-18 07:47:55,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7152 states, 7151 states have (on average 3.4830093693189763) internal successors, (24907), 7151 states have internal predecessors, (24907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:55,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7152 states to 7152 states and 24907 transitions. [2022-01-18 07:47:55,226 INFO L78 Accepts]: Start accepts. Automaton has 7152 states and 24907 transitions. Word has length 39 [2022-01-18 07:47:55,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 07:47:55,226 INFO L470 AbstractCegarLoop]: Abstraction has 7152 states and 24907 transitions. [2022-01-18 07:47:55,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 07:47:55,226 INFO L276 IsEmpty]: Start isEmpty. Operand 7152 states and 24907 transitions. [2022-01-18 07:47:55,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-18 07:47:55,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 07:47:55,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 07:47:55,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-01-18 07:47:55,238 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 07:47:55,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 07:47:55,238 INFO L85 PathProgramCache]: Analyzing trace with hash -625359446, now seen corresponding path program 297 times [2022-01-18 07:47:55,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 07:47:55,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526343166] [2022-01-18 07:47:55,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 07:47:55,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 07:47:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 07:47:55,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 07:47:55,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 07:47:55,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526343166] [2022-01-18 07:47:55,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526343166] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 07:47:55,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 07:47:55,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-18 07:47:55,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955508741] [2022-01-18 07:47:55,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 07:47:55,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 07:47:55,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 07:47:55,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 07:47:55,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-18 07:47:55,445 INFO L87 Difference]: Start difference. First operand 7152 states and 24907 transitions. Second operand has 17 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-01-18 07:47:58,721 WARN L244 SmtUtils]: Removed 12 from assertion stack [2022-01-18 07:47:58,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-01-18 07:47:58,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3685 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=784, Invalid=9928, Unknown=0, NotChecked=0, Total=10712 [2022-01-18 07:47:58,722 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 517 mSDsluCounter, 2958 mSDsCounter, 0 mSdLazyCounter, 4256 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 3032 SdHoareTripleChecker+Invalid, 4374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 4256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 07:47:58,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [517 Valid, 3032 Invalid, 4374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 4256 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-18 07:47:58,723 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-01-18 07:47:58,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-01-18 07:47:58,724 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (7152states) and FLOYD_HOARE automaton (currently 102 states, 17 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 21 for 7ms.. [2022-01-18 07:47:58,725 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 07:47:58,725 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 07:47:58,725 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 07:47:58,725 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 07:47:58,727 INFO L732 BasicCegarLoop]: Path program histogram: [297] [2022-01-18 07:47:58,728 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 07:47:58,728 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 07:47:58,730 INFO L202 PluginConnector]: Adding new model easy10.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 07:47:58 BasicIcfg [2022-01-18 07:47:58,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 07:47:58,730 INFO L158 Benchmark]: Toolchain (without parser) took 727152.74ms. Allocated memory was 335.5MB in the beginning and 1.2GB in the end (delta: 897.6MB). Free memory was 297.4MB in the beginning and 499.0MB in the end (delta: -201.6MB). Peak memory consumption was 697.9MB. Max. memory is 16.0GB. [2022-01-18 07:47:58,730 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 335.5MB. Free memory is still 298.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 07:47:58,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.87ms. Allocated memory is still 335.5MB. Free memory was 297.3MB in the beginning and 295.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 07:47:58,730 INFO L158 Benchmark]: Boogie Preprocessor took 8.71ms. Allocated memory is still 335.5MB. Free memory was 295.7MB in the beginning and 294.9MB in the end (delta: 878.1kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 07:47:58,730 INFO L158 Benchmark]: RCFGBuilder took 219.97ms. Allocated memory is still 335.5MB. Free memory was 294.8MB in the beginning and 285.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2022-01-18 07:47:58,730 INFO L158 Benchmark]: TraceAbstraction took 726896.10ms. Allocated memory was 335.5MB in the beginning and 1.2GB in the end (delta: 897.6MB). Free memory was 285.0MB in the beginning and 499.0MB in the end (delta: -214.0MB). Peak memory consumption was 685.3MB. Max. memory is 16.0GB. [2022-01-18 07:47:58,731 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 0.09ms. Allocated memory is still 335.5MB. Free memory is still 298.5MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 23.87ms. Allocated memory is still 335.5MB. Free memory was 297.3MB in the beginning and 295.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 8.71ms. Allocated memory is still 335.5MB. Free memory was 295.7MB in the beginning and 294.9MB in the end (delta: 878.1kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 219.97ms. Allocated memory is still 335.5MB. Free memory was 294.8MB in the beginning and 285.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 726896.10ms. Allocated memory was 335.5MB in the beginning and 1.2GB in the end (delta: 897.6MB). Free memory was 285.0MB in the beginning and 499.0MB in the end (delta: -214.0MB). Peak memory consumption was 685.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (7152states) and FLOYD_HOARE automaton (currently 102 states, 17 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 21 for 7ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7152states) and FLOYD_HOARE automaton (currently 102 states, 17 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 21 for 7ms.. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7152states) and FLOYD_HOARE automaton (currently 102 states, 17 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 21 for 7ms.. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7152states) and FLOYD_HOARE automaton (currently 102 states, 17 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 21 for 7ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7152states) and FLOYD_HOARE automaton (currently 102 states, 17 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 21 for 7ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 82 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 726.8s, OverallIterations: 297, TraceHistogramMax: 1, PathProgramHistogramMax: 297, EmptinessCheckTime: 2.7s, AutomataDifference: 628.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 142843 SdHoareTripleChecker+Valid, 309.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 142843 mSDsluCounter, 714846 SdHoareTripleChecker+Invalid, 259.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 766860 mSDsCounter, 23982 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 974130 IncrementalHoareTripleChecker+Invalid, 998112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23982 mSolverCounterUnsat, 70368 mSDtfsCounter, 974130 mSolverCounterSat, 2.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21634 GetRequests, 351 SyntacticMatches, 613 SemanticMatches, 20669 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508525 ImplicationChecksByTransitivity, 325.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7329occurred in iteration=286, InterpolantAutomatonStates: 20075, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 31.9s AutomataMinimizationTime, 296 MinimizatonAttempts, 1030388 StatesRemovedByMinimization, 294 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 61.9s InterpolantComputationTime, 11583 NumberOfCodeBlocks, 11583 NumberOfCodeBlocksAsserted, 297 NumberOfCheckSat, 11286 ConstructedInterpolants, 0 QuantifiedInterpolants, 174571 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 297 InterpolantComputations, 297 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown