/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 17:42:22,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 17:42:22,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 17:42:22,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 17:42:22,497 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-01 17:42:22,525 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 17:42:22,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 17:42:22,525 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 17:42:22,525 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 17:42:22,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 17:42:22,526 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 17:42:22,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 17:42:22,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 17:42:22,526 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 17:42:22,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 17:42:22,527 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 17:42:22,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 17:42:22,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 17:42:22,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 17:42:22,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 17:42:22,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 17:42:22,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 17:42:22,528 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 17:42:22,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 17:42:22,528 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 17:42:22,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 17:42:22,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 17:42:22,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 17:42:22,528 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 17:42:22,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 17:42:22,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 17:42:22,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 17:42:22,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 17:42:22,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 17:42:22,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 17:42:22,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 17:42:22,529 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 17:42:22,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 17:42:22,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 17:42:22,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 17:42:22,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 17:42:22,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 17:42:22,711 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-01 17:42:22,713 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-01 17:42:22,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl [2022-03-01 17:42:22,714 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/barrier.wvr.bpl' [2022-03-01 17:42:22,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 17:42:22,734 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-01 17:42:22,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 17:42:22,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 17:42:22,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 17:42:22,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:42:22" (1/1) ... [2022-03-01 17:42:22,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:42:22" (1/1) ... [2022-03-01 17:42:22,753 INFO L137 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-01 17:42:22,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 17:42:22,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 17:42:22,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 17:42:22,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 17:42:22,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:42:22" (1/1) ... [2022-03-01 17:42:22,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:42:22" (1/1) ... [2022-03-01 17:42:22,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:42:22" (1/1) ... [2022-03-01 17:42:22,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:42:22" (1/1) ... [2022-03-01 17:42:22,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:42:22" (1/1) ... [2022-03-01 17:42:22,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:42:22" (1/1) ... [2022-03-01 17:42:22,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:42:22" (1/1) ... [2022-03-01 17:42:22,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 17:42:22,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 17:42:22,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 17:42:22,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 17:42:22,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:42:22" (1/1) ... [2022-03-01 17:42:22,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 17:42:22,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 17:42:22,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-01 17:42:22,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-01 17:42:22,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-01 17:42:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 17:42:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 17:42:22,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-01 17:42:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 17:42:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 17:42:22,842 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-01 17:42:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 17:42:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 17:42:22,843 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-01 17:42:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 17:42:22,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 17:42:22,843 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-01 17:42:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-01 17:42:22,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-01 17:42:22,844 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2022-03-01 17:42:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-03-01 17:42:22,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-03-01 17:42:22,846 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2022-03-01 17:42:22,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-03-01 17:42:22,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-03-01 17:42:22,847 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 17:42:22,885 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 17:42:22,886 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 17:42:22,992 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 17:42:22,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 17:42:22,997 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 17:42:22,998 INFO L202 PluginConnector]: Adding new model barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 05:42:22 BoogieIcfgContainer [2022-03-01 17:42:22,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 17:42:23,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 17:42:23,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 17:42:23,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 17:42:23,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:42:22" (1/2) ... [2022-03-01 17:42:23,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6fc9ac and model type barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 05:42:23, skipping insertion in model container [2022-03-01 17:42:23,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 05:42:22" (2/2) ... [2022-03-01 17:42:23,019 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier.wvr.bpl [2022-03-01 17:42:23,022 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 17:42:23,022 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 17:42:23,022 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 17:42:23,022 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 17:42:23,096 INFO L148 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-03-01 17:42:23,140 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 17:42:23,146 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 17:42:23,146 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-03-01 17:42:23,153 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 65 transitions, 202 flow [2022-03-01 17:42:23,552 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7229 states, 7228 states have (on average 3.6694798007747647) internal successors, (26523), 7228 states have internal predecessors, (26523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:23,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 7229 states, 7228 states have (on average 3.6694798007747647) internal successors, (26523), 7228 states have internal predecessors, (26523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:23,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:23,668 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:23,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:23,670 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:23,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:23,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1582648075, now seen corresponding path program 1 times [2022-03-01 17:42:23,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:23,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767149488] [2022-03-01 17:42:23,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:23,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:23,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:23,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:23,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767149488] [2022-03-01 17:42:23,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767149488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:23,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:23,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 17:42:23,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523722550] [2022-03-01 17:42:23,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:23,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 17:42:23,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:23,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 17:42:23,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:42:23,839 INFO L87 Difference]: Start difference. First operand has 7229 states, 7228 states have (on average 3.6694798007747647) internal successors, (26523), 7228 states have internal predecessors, (26523), 0 states have call successors, (0), 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 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:23,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:23,942 INFO L93 Difference]: Finished difference Result 5614 states and 20074 transitions. [2022-03-01 17:42:23,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 17:42:23,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:23,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:24,012 INFO L225 Difference]: With dead ends: 5614 [2022-03-01 17:42:24,013 INFO L226 Difference]: Without dead ends: 5614 [2022-03-01 17:42:24,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:42:24,020 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 22 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:24,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 80 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:42:24,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5614 states. [2022-03-01 17:42:24,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5614 to 5614. [2022-03-01 17:42:24,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5614 states, 5613 states have (on average 3.5763406378050955) internal successors, (20074), 5613 states have internal predecessors, (20074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:24,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5614 states to 5614 states and 20074 transitions. [2022-03-01 17:42:24,359 INFO L78 Accepts]: Start accepts. Automaton has 5614 states and 20074 transitions. Word has length 47 [2022-03-01 17:42:24,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:24,359 INFO L470 AbstractCegarLoop]: Abstraction has 5614 states and 20074 transitions. [2022-03-01 17:42:24,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:24,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5614 states and 20074 transitions. [2022-03-01 17:42:24,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:24,413 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:24,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:24,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 17:42:24,413 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:24,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:24,414 INFO L85 PathProgramCache]: Analyzing trace with hash 2098813663, now seen corresponding path program 2 times [2022-03-01 17:42:24,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:24,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792570706] [2022-03-01 17:42:24,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:24,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:24,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:24,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:24,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792570706] [2022-03-01 17:42:24,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792570706] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:24,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:24,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 17:42:24,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114788704] [2022-03-01 17:42:24,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:24,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 17:42:24,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:24,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 17:42:24,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:42:24,448 INFO L87 Difference]: Start difference. First operand 5614 states and 20074 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:24,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:24,528 INFO L93 Difference]: Finished difference Result 4822 states and 17110 transitions. [2022-03-01 17:42:24,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 17:42:24,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:24,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:24,553 INFO L225 Difference]: With dead ends: 4822 [2022-03-01 17:42:24,553 INFO L226 Difference]: Without dead ends: 4822 [2022-03-01 17:42:24,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:42:24,557 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 18 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:24,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 80 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:42:24,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4822 states. [2022-03-01 17:42:24,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4822 to 4822. [2022-03-01 17:42:24,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4822 states, 4821 states have (on average 3.5490562124040657) internal successors, (17110), 4821 states have internal predecessors, (17110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:24,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4822 states to 4822 states and 17110 transitions. [2022-03-01 17:42:24,680 INFO L78 Accepts]: Start accepts. Automaton has 4822 states and 17110 transitions. Word has length 47 [2022-03-01 17:42:24,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:24,681 INFO L470 AbstractCegarLoop]: Abstraction has 4822 states and 17110 transitions. [2022-03-01 17:42:24,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:24,682 INFO L276 IsEmpty]: Start isEmpty. Operand 4822 states and 17110 transitions. [2022-03-01 17:42:24,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:24,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:24,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:24,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 17:42:24,695 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:24,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:24,696 INFO L85 PathProgramCache]: Analyzing trace with hash 949523355, now seen corresponding path program 3 times [2022-03-01 17:42:24,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:24,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798743209] [2022-03-01 17:42:24,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:24,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:25,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:25,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:25,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798743209] [2022-03-01 17:42:25,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798743209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:25,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:25,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:42:25,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071448298] [2022-03-01 17:42:25,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:25,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:42:25,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:25,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:42:25,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:42:25,267 INFO L87 Difference]: Start difference. First operand 4822 states and 17110 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:26,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:26,801 INFO L93 Difference]: Finished difference Result 6172 states and 21633 transitions. [2022-03-01 17:42:26,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 17:42:26,802 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:26,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:26,826 INFO L225 Difference]: With dead ends: 6172 [2022-03-01 17:42:26,826 INFO L226 Difference]: Without dead ends: 6045 [2022-03-01 17:42:26,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=148, Invalid=1258, Unknown=0, NotChecked=0, Total=1406 [2022-03-01 17:42:26,827 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 368 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1324 SdHoareTripleChecker+Invalid, 2649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:26,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 1324 Invalid, 2649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2630 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-01 17:42:26,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2022-03-01 17:42:26,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 5006. [2022-03-01 17:42:26,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5006 states, 5005 states have (on average 3.5384615384615383) internal successors, (17710), 5005 states have internal predecessors, (17710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:26,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5006 states to 5006 states and 17710 transitions. [2022-03-01 17:42:26,935 INFO L78 Accepts]: Start accepts. Automaton has 5006 states and 17710 transitions. Word has length 47 [2022-03-01 17:42:26,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:26,935 INFO L470 AbstractCegarLoop]: Abstraction has 5006 states and 17710 transitions. [2022-03-01 17:42:26,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:26,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5006 states and 17710 transitions. [2022-03-01 17:42:26,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:26,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:26,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:26,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 17:42:26,948 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:26,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:26,948 INFO L85 PathProgramCache]: Analyzing trace with hash -401225249, now seen corresponding path program 4 times [2022-03-01 17:42:26,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:26,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661918279] [2022-03-01 17:42:26,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:26,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:27,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:27,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:27,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661918279] [2022-03-01 17:42:27,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661918279] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:27,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:27,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:42:27,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154346522] [2022-03-01 17:42:27,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:27,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:42:27,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:27,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:42:27,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:42:27,270 INFO L87 Difference]: Start difference. First operand 5006 states and 17710 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:29,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:29,511 INFO L93 Difference]: Finished difference Result 8462 states and 29832 transitions. [2022-03-01 17:42:29,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 17:42:29,513 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:29,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:29,540 INFO L225 Difference]: With dead ends: 8462 [2022-03-01 17:42:29,541 INFO L226 Difference]: Without dead ends: 8373 [2022-03-01 17:42:29,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=246, Invalid=1916, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 17:42:29,542 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 565 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 3750 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 3812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:29,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 1969 Invalid, 3812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3750 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:42:29,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8373 states. [2022-03-01 17:42:29,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8373 to 5198. [2022-03-01 17:42:29,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 5197 states have (on average 3.529343852222436) internal successors, (18342), 5197 states have internal predecessors, (18342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:29,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 18342 transitions. [2022-03-01 17:42:29,715 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 18342 transitions. Word has length 47 [2022-03-01 17:42:29,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:29,715 INFO L470 AbstractCegarLoop]: Abstraction has 5198 states and 18342 transitions. [2022-03-01 17:42:29,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:29,716 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 18342 transitions. [2022-03-01 17:42:29,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:29,727 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:29,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:29,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 17:42:29,728 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:29,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:29,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1251877157, now seen corresponding path program 5 times [2022-03-01 17:42:29,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:29,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911461219] [2022-03-01 17:42:29,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:29,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:30,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:30,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911461219] [2022-03-01 17:42:30,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911461219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:30,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:30,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:42:30,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469375972] [2022-03-01 17:42:30,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:30,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:42:30,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:30,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:42:30,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:42:30,074 INFO L87 Difference]: Start difference. First operand 5198 states and 18342 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:32,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:32,442 INFO L93 Difference]: Finished difference Result 8595 states and 30668 transitions. [2022-03-01 17:42:32,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 17:42:32,443 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:32,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:32,468 INFO L225 Difference]: With dead ends: 8595 [2022-03-01 17:42:32,468 INFO L226 Difference]: Without dead ends: 8492 [2022-03-01 17:42:32,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=311, Invalid=2769, Unknown=0, NotChecked=0, Total=3080 [2022-03-01 17:42:32,469 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 592 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 3986 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 4046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 3986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:32,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [592 Valid, 2026 Invalid, 4046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 3986 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:42:32,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8492 states. [2022-03-01 17:42:32,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8492 to 5186. [2022-03-01 17:42:32,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5186 states, 5185 states have (on average 3.5305689488910317) internal successors, (18306), 5185 states have internal predecessors, (18306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:32,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 18306 transitions. [2022-03-01 17:42:32,601 INFO L78 Accepts]: Start accepts. Automaton has 5186 states and 18306 transitions. Word has length 47 [2022-03-01 17:42:32,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:32,601 INFO L470 AbstractCegarLoop]: Abstraction has 5186 states and 18306 transitions. [2022-03-01 17:42:32,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:32,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5186 states and 18306 transitions. [2022-03-01 17:42:32,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:32,612 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:32,612 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:32,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 17:42:32,612 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:32,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:32,615 INFO L85 PathProgramCache]: Analyzing trace with hash 923930395, now seen corresponding path program 6 times [2022-03-01 17:42:32,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:32,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758054290] [2022-03-01 17:42:32,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:32,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:32,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:32,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:32,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758054290] [2022-03-01 17:42:32,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758054290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:32,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:32,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-01 17:42:32,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318106046] [2022-03-01 17:42:32,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:32,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 17:42:32,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:32,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 17:42:32,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-01 17:42:32,908 INFO L87 Difference]: Start difference. First operand 5186 states and 18306 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:34,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:34,761 INFO L93 Difference]: Finished difference Result 7581 states and 26484 transitions. [2022-03-01 17:42:34,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 17:42:34,761 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:34,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:34,781 INFO L225 Difference]: With dead ends: 7581 [2022-03-01 17:42:34,781 INFO L226 Difference]: Without dead ends: 7444 [2022-03-01 17:42:34,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=2007, Unknown=0, NotChecked=0, Total=2256 [2022-03-01 17:42:34,783 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 453 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 3395 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 3439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 3395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:34,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 1523 Invalid, 3439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 3395 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-01 17:42:34,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7444 states. [2022-03-01 17:42:34,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7444 to 5366. [2022-03-01 17:42:34,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 3.52022367194781) internal successors, (18886), 5365 states have internal predecessors, (18886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:34,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 18886 transitions. [2022-03-01 17:42:34,905 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 18886 transitions. Word has length 47 [2022-03-01 17:42:34,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:34,905 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 18886 transitions. [2022-03-01 17:42:34,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:34,905 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 18886 transitions. [2022-03-01 17:42:34,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:34,915 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:34,916 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:34,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 17:42:34,916 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:34,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:34,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1054944067, now seen corresponding path program 7 times [2022-03-01 17:42:34,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:34,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383579477] [2022-03-01 17:42:34,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:34,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:35,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:35,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:35,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383579477] [2022-03-01 17:42:35,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383579477] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:35,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:35,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:42:35,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306943431] [2022-03-01 17:42:35,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:35,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:42:35,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:35,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:42:35,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:42:35,218 INFO L87 Difference]: Start difference. First operand 5366 states and 18886 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:37,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:37,336 INFO L93 Difference]: Finished difference Result 8646 states and 30471 transitions. [2022-03-01 17:42:37,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-01 17:42:37,337 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:37,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:37,361 INFO L225 Difference]: With dead ends: 8646 [2022-03-01 17:42:37,361 INFO L226 Difference]: Without dead ends: 8557 [2022-03-01 17:42:37,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=294, Invalid=2358, Unknown=0, NotChecked=0, Total=2652 [2022-03-01 17:42:37,363 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 601 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 3921 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 3991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:37,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 1857 Invalid, 3991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3921 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-01 17:42:37,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8557 states. [2022-03-01 17:42:37,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8557 to 5370. [2022-03-01 17:42:37,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5370 states, 5369 states have (on average 3.5190910784131124) internal successors, (18894), 5369 states have internal predecessors, (18894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:37,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5370 states to 5370 states and 18894 transitions. [2022-03-01 17:42:37,497 INFO L78 Accepts]: Start accepts. Automaton has 5370 states and 18894 transitions. Word has length 47 [2022-03-01 17:42:37,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:37,497 INFO L470 AbstractCegarLoop]: Abstraction has 5370 states and 18894 transitions. [2022-03-01 17:42:37,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:37,498 INFO L276 IsEmpty]: Start isEmpty. Operand 5370 states and 18894 transitions. [2022-03-01 17:42:37,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:37,508 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:37,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:37,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 17:42:37,509 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:37,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:37,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1905595975, now seen corresponding path program 8 times [2022-03-01 17:42:37,510 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:37,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340170233] [2022-03-01 17:42:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:37,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:37,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:37,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:37,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340170233] [2022-03-01 17:42:37,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340170233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:37,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:37,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:42:37,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791989827] [2022-03-01 17:42:37,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:37,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:42:37,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:37,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:42:37,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:42:37,802 INFO L87 Difference]: Start difference. First operand 5370 states and 18894 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:40,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:40,092 INFO L93 Difference]: Finished difference Result 9233 states and 32861 transitions. [2022-03-01 17:42:40,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 17:42:40,093 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:40,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:40,112 INFO L225 Difference]: With dead ends: 9233 [2022-03-01 17:42:40,112 INFO L226 Difference]: Without dead ends: 9102 [2022-03-01 17:42:40,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=330, Invalid=2976, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 17:42:40,113 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 623 mSDsluCounter, 3141 mSDsCounter, 0 mSdLazyCounter, 4110 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 4179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:40,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [623 Valid, 2084 Invalid, 4179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 4110 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-01 17:42:40,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9102 states. [2022-03-01 17:42:40,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9102 to 5330. [2022-03-01 17:42:40,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5329 states have (on average 3.5207355976731094) internal successors, (18762), 5329 states have internal predecessors, (18762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:40,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 18762 transitions. [2022-03-01 17:42:40,240 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 18762 transitions. Word has length 47 [2022-03-01 17:42:40,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:40,240 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 18762 transitions. [2022-03-01 17:42:40,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:40,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 18762 transitions. [2022-03-01 17:42:40,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:40,250 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:40,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:40,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 17:42:40,251 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:40,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:40,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1744544869, now seen corresponding path program 9 times [2022-03-01 17:42:40,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:40,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072723662] [2022-03-01 17:42:40,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:40,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:40,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:40,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072723662] [2022-03-01 17:42:40,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072723662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:40,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:40,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:42:40,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082251408] [2022-03-01 17:42:40,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:40,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:42:40,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:40,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:42:40,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:42:40,536 INFO L87 Difference]: Start difference. First operand 5330 states and 18762 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:41,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:41,917 INFO L93 Difference]: Finished difference Result 6689 states and 23271 transitions. [2022-03-01 17:42:41,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 17:42:41,918 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:41,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:41,931 INFO L225 Difference]: With dead ends: 6689 [2022-03-01 17:42:41,932 INFO L226 Difference]: Without dead ends: 6562 [2022-03-01 17:42:41,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:42:41,933 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 440 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 2919 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 2944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:41,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [440 Valid, 1454 Invalid, 2944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2919 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:42:41,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6562 states. [2022-03-01 17:42:42,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6562 to 5342. [2022-03-01 17:42:42,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5341 states have (on average 3.5184422392810335) internal successors, (18792), 5341 states have internal predecessors, (18792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:42,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 18792 transitions. [2022-03-01 17:42:42,036 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 18792 transitions. Word has length 47 [2022-03-01 17:42:42,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:42,036 INFO L470 AbstractCegarLoop]: Abstraction has 5342 states and 18792 transitions. [2022-03-01 17:42:42,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:42,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 18792 transitions. [2022-03-01 17:42:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:42,048 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:42,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:42,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 17:42:42,048 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:42,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:42,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1199673823, now seen corresponding path program 10 times [2022-03-01 17:42:42,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:42,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896872877] [2022-03-01 17:42:42,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:42,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:42,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:42,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:42,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896872877] [2022-03-01 17:42:42,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896872877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:42,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:42,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:42:42,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438165803] [2022-03-01 17:42:42,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:42,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:42:42,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:42,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:42:42,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:42:42,351 INFO L87 Difference]: Start difference. First operand 5342 states and 18792 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:44,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:44,513 INFO L93 Difference]: Finished difference Result 8910 states and 31376 transitions. [2022-03-01 17:42:44,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-01 17:42:44,519 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:44,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:44,539 INFO L225 Difference]: With dead ends: 8910 [2022-03-01 17:42:44,539 INFO L226 Difference]: Without dead ends: 8821 [2022-03-01 17:42:44,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=285, Invalid=2367, Unknown=0, NotChecked=0, Total=2652 [2022-03-01 17:42:44,540 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 639 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 4039 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 4111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 4039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:44,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 2156 Invalid, 4111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 4039 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:42:44,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8821 states. [2022-03-01 17:42:44,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8821 to 5358. [2022-03-01 17:42:44,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5358 states, 5357 states have (on average 3.516520440545081) internal successors, (18838), 5357 states have internal predecessors, (18838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:44,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5358 states to 5358 states and 18838 transitions. [2022-03-01 17:42:44,657 INFO L78 Accepts]: Start accepts. Automaton has 5358 states and 18838 transitions. Word has length 47 [2022-03-01 17:42:44,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:44,658 INFO L470 AbstractCegarLoop]: Abstraction has 5358 states and 18838 transitions. [2022-03-01 17:42:44,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:44,659 INFO L276 IsEmpty]: Start isEmpty. Operand 5358 states and 18838 transitions. [2022-03-01 17:42:44,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:44,668 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:44,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:44,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-01 17:42:44,669 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:44,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:44,669 INFO L85 PathProgramCache]: Analyzing trace with hash 349021915, now seen corresponding path program 11 times [2022-03-01 17:42:44,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:44,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753371637] [2022-03-01 17:42:44,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:44,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:44,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:44,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753371637] [2022-03-01 17:42:44,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753371637] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:44,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:44,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:42:44,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263100617] [2022-03-01 17:42:44,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:44,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:42:44,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:44,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:42:44,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:42:44,946 INFO L87 Difference]: Start difference. First operand 5358 states and 18838 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:47,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:47,398 INFO L93 Difference]: Finished difference Result 8807 states and 31346 transitions. [2022-03-01 17:42:47,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-01 17:42:47,399 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:47,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:47,419 INFO L225 Difference]: With dead ends: 8807 [2022-03-01 17:42:47,420 INFO L226 Difference]: Without dead ends: 8704 [2022-03-01 17:42:47,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1088 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=405, Invalid=3755, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 17:42:47,421 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 699 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 4042 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 4127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 4042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:47,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 2053 Invalid, 4127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 4042 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:42:47,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8704 states. [2022-03-01 17:42:47,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8704 to 5338. [2022-03-01 17:42:47,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 3.519955030916245) internal successors, (18786), 5337 states have internal predecessors, (18786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:47,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 18786 transitions. [2022-03-01 17:42:47,536 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 18786 transitions. Word has length 47 [2022-03-01 17:42:47,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:47,536 INFO L470 AbstractCegarLoop]: Abstraction has 5338 states and 18786 transitions. [2022-03-01 17:42:47,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:47,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 18786 transitions. [2022-03-01 17:42:47,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:47,548 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:47,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:47,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-01 17:42:47,548 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:47,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:47,548 INFO L85 PathProgramCache]: Analyzing trace with hash -202621511, now seen corresponding path program 12 times [2022-03-01 17:42:47,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:47,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874113173] [2022-03-01 17:42:47,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:47,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:47,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:47,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:47,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874113173] [2022-03-01 17:42:47,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874113173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:47,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:47,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:42:47,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969766968] [2022-03-01 17:42:47,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:47,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:42:47,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:47,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:42:47,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:42:47,828 INFO L87 Difference]: Start difference. First operand 5338 states and 18786 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:49,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:49,198 INFO L93 Difference]: Finished difference Result 6388 states and 22235 transitions. [2022-03-01 17:42:49,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 17:42:49,198 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:49,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:49,212 INFO L225 Difference]: With dead ends: 6388 [2022-03-01 17:42:49,213 INFO L226 Difference]: Without dead ends: 6261 [2022-03-01 17:42:49,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=1408, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:42:49,214 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 370 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 2990 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 3011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:49,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 1457 Invalid, 3011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2990 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:42:49,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6261 states. [2022-03-01 17:42:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6261 to 5350. [2022-03-01 17:42:49,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5350 states, 5349 states have (on average 3.5176668536174986) internal successors, (18816), 5349 states have internal predecessors, (18816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:49,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5350 states to 5350 states and 18816 transitions. [2022-03-01 17:42:49,318 INFO L78 Accepts]: Start accepts. Automaton has 5350 states and 18816 transitions. Word has length 47 [2022-03-01 17:42:49,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:49,318 INFO L470 AbstractCegarLoop]: Abstraction has 5350 states and 18816 transitions. [2022-03-01 17:42:49,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:49,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5350 states and 18816 transitions. [2022-03-01 17:42:49,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:49,328 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:49,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:49,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-01 17:42:49,328 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:49,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:49,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1624749749, now seen corresponding path program 13 times [2022-03-01 17:42:49,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:49,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571100618] [2022-03-01 17:42:49,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:49,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:49,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:49,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:49,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571100618] [2022-03-01 17:42:49,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571100618] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:49,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:49,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:42:49,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269728976] [2022-03-01 17:42:49,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:49,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:42:49,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:49,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:42:49,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:42:49,590 INFO L87 Difference]: Start difference. First operand 5350 states and 18816 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:50,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:50,885 INFO L93 Difference]: Finished difference Result 6457 states and 22437 transitions. [2022-03-01 17:42:50,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 17:42:50,885 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:50,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:50,903 INFO L225 Difference]: With dead ends: 6457 [2022-03-01 17:42:50,903 INFO L226 Difference]: Without dead ends: 6360 [2022-03-01 17:42:50,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=1335, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 17:42:50,904 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 379 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 2898 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:50,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 1406 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2898 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:42:50,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6360 states. [2022-03-01 17:42:50,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6360 to 5356. [2022-03-01 17:42:50,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 5355 states have (on average 3.5165266106442576) internal successors, (18831), 5355 states have internal predecessors, (18831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:51,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 18831 transitions. [2022-03-01 17:42:51,002 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 18831 transitions. Word has length 47 [2022-03-01 17:42:51,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:51,002 INFO L470 AbstractCegarLoop]: Abstraction has 5356 states and 18831 transitions. [2022-03-01 17:42:51,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:51,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 18831 transitions. [2022-03-01 17:42:51,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:51,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:51,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:51,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-01 17:42:51,014 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:51,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:51,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1627423575, now seen corresponding path program 14 times [2022-03-01 17:42:51,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:51,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197355210] [2022-03-01 17:42:51,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:51,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:51,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:51,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:51,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197355210] [2022-03-01 17:42:51,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197355210] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:51,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:51,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:42:51,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595468891] [2022-03-01 17:42:51,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:51,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:42:51,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:51,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:42:51,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:42:51,320 INFO L87 Difference]: Start difference. First operand 5356 states and 18831 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:52,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:52,657 INFO L93 Difference]: Finished difference Result 6358 states and 22132 transitions. [2022-03-01 17:42:52,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 17:42:52,658 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:52,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:52,671 INFO L225 Difference]: With dead ends: 6358 [2022-03-01 17:42:52,672 INFO L226 Difference]: Without dead ends: 6249 [2022-03-01 17:42:52,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=1407, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:42:52,673 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 381 mSDsluCounter, 2645 mSDsCounter, 0 mSdLazyCounter, 3022 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 3043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:52,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 1463 Invalid, 3043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3022 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:42:52,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6249 states. [2022-03-01 17:42:52,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6249 to 5338. [2022-03-01 17:42:52,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 3.5192055461869964) internal successors, (18782), 5337 states have internal predecessors, (18782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:52,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 18782 transitions. [2022-03-01 17:42:52,760 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 18782 transitions. Word has length 47 [2022-03-01 17:42:52,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:52,761 INFO L470 AbstractCegarLoop]: Abstraction has 5338 states and 18782 transitions. [2022-03-01 17:42:52,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:52,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 18782 transitions. [2022-03-01 17:42:52,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:52,768 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:52,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:52,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-01 17:42:52,769 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:52,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:52,769 INFO L85 PathProgramCache]: Analyzing trace with hash 318951903, now seen corresponding path program 15 times [2022-03-01 17:42:52,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:52,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997291261] [2022-03-01 17:42:52,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:52,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:53,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:53,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:53,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997291261] [2022-03-01 17:42:53,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997291261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:53,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:53,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:42:53,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154576959] [2022-03-01 17:42:53,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:53,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:42:53,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:53,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:42:53,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:42:53,039 INFO L87 Difference]: Start difference. First operand 5338 states and 18782 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:54,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:54,587 INFO L93 Difference]: Finished difference Result 6590 states and 22853 transitions. [2022-03-01 17:42:54,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 17:42:54,588 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:54,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:54,602 INFO L225 Difference]: With dead ends: 6590 [2022-03-01 17:42:54,602 INFO L226 Difference]: Without dead ends: 6469 [2022-03-01 17:42:54,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 17:42:54,603 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 492 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 3092 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 3137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:54,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 1494 Invalid, 3137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3092 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-01 17:42:54,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6469 states. [2022-03-01 17:42:54,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6469 to 5344. [2022-03-01 17:42:54,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 3.517686692869175) internal successors, (18795), 5343 states have internal predecessors, (18795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 18795 transitions. [2022-03-01 17:42:54,692 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 18795 transitions. Word has length 47 [2022-03-01 17:42:54,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:54,692 INFO L470 AbstractCegarLoop]: Abstraction has 5344 states and 18795 transitions. [2022-03-01 17:42:54,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:54,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 18795 transitions. [2022-03-01 17:42:54,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:54,701 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:54,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:54,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-01 17:42:54,701 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:54,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:54,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1890373339, now seen corresponding path program 16 times [2022-03-01 17:42:54,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:54,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066134039] [2022-03-01 17:42:54,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:54,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:54,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:54,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:54,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066134039] [2022-03-01 17:42:54,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066134039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:54,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:54,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:42:54,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909963017] [2022-03-01 17:42:54,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:54,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:42:54,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:54,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:42:54,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:42:54,951 INFO L87 Difference]: Start difference. First operand 5344 states and 18795 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:56,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:56,780 INFO L93 Difference]: Finished difference Result 7051 states and 24466 transitions. [2022-03-01 17:42:56,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 17:42:56,780 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:56,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:56,795 INFO L225 Difference]: With dead ends: 7051 [2022-03-01 17:42:56,795 INFO L226 Difference]: Without dead ends: 6956 [2022-03-01 17:42:56,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=2306, Unknown=0, NotChecked=0, Total=2550 [2022-03-01 17:42:56,796 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 525 mSDsluCounter, 3051 mSDsCounter, 0 mSdLazyCounter, 3653 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 3701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:56,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 1698 Invalid, 3701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3653 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-01 17:42:56,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6956 states. [2022-03-01 17:42:56,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6956 to 5346. [2022-03-01 17:42:56,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5346 states, 5345 states have (on average 3.517305893358279) internal successors, (18800), 5345 states have internal predecessors, (18800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:56,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5346 states to 5346 states and 18800 transitions. [2022-03-01 17:42:56,921 INFO L78 Accepts]: Start accepts. Automaton has 5346 states and 18800 transitions. Word has length 47 [2022-03-01 17:42:56,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:56,921 INFO L470 AbstractCegarLoop]: Abstraction has 5346 states and 18800 transitions. [2022-03-01 17:42:56,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:56,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5346 states and 18800 transitions. [2022-03-01 17:42:56,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:56,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:56,929 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:56,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-01 17:42:56,929 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:56,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:56,930 INFO L85 PathProgramCache]: Analyzing trace with hash -2105702279, now seen corresponding path program 17 times [2022-03-01 17:42:56,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:56,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132179043] [2022-03-01 17:42:56,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:56,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:57,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:57,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:57,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132179043] [2022-03-01 17:42:57,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132179043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:57,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:57,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:42:57,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731537084] [2022-03-01 17:42:57,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:57,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:42:57,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:57,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:42:57,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:42:57,185 INFO L87 Difference]: Start difference. First operand 5346 states and 18800 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:58,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:42:58,414 INFO L93 Difference]: Finished difference Result 6453 states and 22421 transitions. [2022-03-01 17:42:58,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 17:42:58,414 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:42:58,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:42:58,428 INFO L225 Difference]: With dead ends: 6453 [2022-03-01 17:42:58,428 INFO L226 Difference]: Without dead ends: 6356 [2022-03-01 17:42:58,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=152, Invalid=1330, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 17:42:58,429 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 397 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 2666 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:42:58,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 1279 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2666 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:42:58,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2022-03-01 17:42:58,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 5352. [2022-03-01 17:42:58,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 3.5161652027658383) internal successors, (18815), 5351 states have internal predecessors, (18815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:58,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 18815 transitions. [2022-03-01 17:42:58,515 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 18815 transitions. Word has length 47 [2022-03-01 17:42:58,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:42:58,516 INFO L470 AbstractCegarLoop]: Abstraction has 5352 states and 18815 transitions. [2022-03-01 17:42:58,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:42:58,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 18815 transitions. [2022-03-01 17:42:58,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:42:58,524 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:42:58,524 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:42:58,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-01 17:42:58,524 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:42:58,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:42:58,525 INFO L85 PathProgramCache]: Analyzing trace with hash 463844507, now seen corresponding path program 18 times [2022-03-01 17:42:58,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:42:58,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406065943] [2022-03-01 17:42:58,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:42:58,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:42:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:42:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:42:58,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:42:58,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406065943] [2022-03-01 17:42:58,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406065943] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:42:58,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:42:58,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:42:58,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733348548] [2022-03-01 17:42:58,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:42:58,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:42:58,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:42:58,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:42:58,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:42:58,774 INFO L87 Difference]: Start difference. First operand 5352 states and 18815 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:00,125 INFO L93 Difference]: Finished difference Result 6354 states and 22116 transitions. [2022-03-01 17:43:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 17:43:00,125 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:00,138 INFO L225 Difference]: With dead ends: 6354 [2022-03-01 17:43:00,139 INFO L226 Difference]: Without dead ends: 6251 [2022-03-01 17:43:00,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=1404, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:43:00,140 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 383 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 2917 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 2941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:00,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 1400 Invalid, 2941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2917 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:00,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6251 states. [2022-03-01 17:43:00,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6251 to 5340. [2022-03-01 17:43:00,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 5339 states have (on average 3.5188237497658736) internal successors, (18787), 5339 states have internal predecessors, (18787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:00,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 18787 transitions. [2022-03-01 17:43:00,249 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 18787 transitions. Word has length 47 [2022-03-01 17:43:00,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:00,249 INFO L470 AbstractCegarLoop]: Abstraction has 5340 states and 18787 transitions. [2022-03-01 17:43:00,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:00,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 18787 transitions. [2022-03-01 17:43:00,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:00,258 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:00,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:00,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-01 17:43:00,258 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:00,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:00,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1760511687, now seen corresponding path program 19 times [2022-03-01 17:43:00,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:00,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671904287] [2022-03-01 17:43:00,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:00,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:00,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:00,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:00,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671904287] [2022-03-01 17:43:00,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671904287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:00,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:00,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:43:00,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054205917] [2022-03-01 17:43:00,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:00,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:43:00,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:00,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:43:00,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:43:00,510 INFO L87 Difference]: Start difference. First operand 5340 states and 18787 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:01,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:01,820 INFO L93 Difference]: Finished difference Result 6323 states and 22051 transitions. [2022-03-01 17:43:01,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 17:43:01,820 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:01,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:01,834 INFO L225 Difference]: With dead ends: 6323 [2022-03-01 17:43:01,834 INFO L226 Difference]: Without dead ends: 6186 [2022-03-01 17:43:01,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=1402, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:43:01,835 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 370 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 2742 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 2770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:01,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 1392 Invalid, 2770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2742 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:01,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6186 states. [2022-03-01 17:43:01,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6186 to 5382. [2022-03-01 17:43:01,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 3.5108715852072105) internal successors, (18892), 5381 states have internal predecessors, (18892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:01,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 18892 transitions. [2022-03-01 17:43:01,921 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 18892 transitions. Word has length 47 [2022-03-01 17:43:01,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:01,922 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 18892 transitions. [2022-03-01 17:43:01,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:01,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 18892 transitions. [2022-03-01 17:43:01,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:01,931 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:01,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:01,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-01 17:43:01,931 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:01,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:01,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1725515001, now seen corresponding path program 20 times [2022-03-01 17:43:01,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:01,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535844278] [2022-03-01 17:43:01,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:01,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:02,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:02,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:02,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535844278] [2022-03-01 17:43:02,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535844278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:02,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:02,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:02,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834569578] [2022-03-01 17:43:02,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:02,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:02,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:02,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:02,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:02,185 INFO L87 Difference]: Start difference. First operand 5382 states and 18892 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:03,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:03,602 INFO L93 Difference]: Finished difference Result 6307 states and 21983 transitions. [2022-03-01 17:43:03,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 17:43:03,602 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:03,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:03,640 INFO L225 Difference]: With dead ends: 6307 [2022-03-01 17:43:03,640 INFO L226 Difference]: Without dead ends: 6162 [2022-03-01 17:43:03,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=1631, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:43:03,641 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 430 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 3064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:03,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 1494 Invalid, 3064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-03-01 17:43:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5358. [2022-03-01 17:43:03,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5358 states, 5357 states have (on average 3.514280380810155) internal successors, (18826), 5357 states have internal predecessors, (18826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:03,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5358 states to 5358 states and 18826 transitions. [2022-03-01 17:43:03,722 INFO L78 Accepts]: Start accepts. Automaton has 5358 states and 18826 transitions. Word has length 47 [2022-03-01 17:43:03,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:03,723 INFO L470 AbstractCegarLoop]: Abstraction has 5358 states and 18826 transitions. [2022-03-01 17:43:03,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:03,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5358 states and 18826 transitions. [2022-03-01 17:43:03,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:03,732 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:03,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:03,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-01 17:43:03,732 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:03,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:03,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1669556517, now seen corresponding path program 21 times [2022-03-01 17:43:03,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:03,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518489464] [2022-03-01 17:43:03,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:03,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:03,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:03,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:03,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518489464] [2022-03-01 17:43:03,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518489464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:03,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:03,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:03,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085069200] [2022-03-01 17:43:03,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:03,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:03,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:03,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:03,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:03,993 INFO L87 Difference]: Start difference. First operand 5358 states and 18826 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:06,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:06,570 INFO L93 Difference]: Finished difference Result 9468 states and 33376 transitions. [2022-03-01 17:43:06,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-01 17:43:06,571 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:06,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:06,591 INFO L225 Difference]: With dead ends: 9468 [2022-03-01 17:43:06,591 INFO L226 Difference]: Without dead ends: 9331 [2022-03-01 17:43:06,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1008 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=402, Invalid=3504, Unknown=0, NotChecked=0, Total=3906 [2022-03-01 17:43:06,593 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 720 mSDsluCounter, 3493 mSDsCounter, 0 mSdLazyCounter, 4603 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 4697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 4603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:06,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 2270 Invalid, 4697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 4603 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-01 17:43:06,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9331 states. [2022-03-01 17:43:06,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9331 to 5392. [2022-03-01 17:43:06,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5392 states, 5391 states have (on average 3.5086254869226488) internal successors, (18915), 5391 states have internal predecessors, (18915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:06,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 18915 transitions. [2022-03-01 17:43:06,704 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 18915 transitions. Word has length 47 [2022-03-01 17:43:06,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:06,705 INFO L470 AbstractCegarLoop]: Abstraction has 5392 states and 18915 transitions. [2022-03-01 17:43:06,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:06,705 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 18915 transitions. [2022-03-01 17:43:06,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:06,713 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:06,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:06,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-01 17:43:06,713 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:06,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:06,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1774758871, now seen corresponding path program 22 times [2022-03-01 17:43:06,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:06,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960963620] [2022-03-01 17:43:06,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:06,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:07,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:07,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:07,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960963620] [2022-03-01 17:43:07,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960963620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:07,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:07,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:07,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234573031] [2022-03-01 17:43:07,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:07,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:07,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:07,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:07,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:07,052 INFO L87 Difference]: Start difference. First operand 5392 states and 18915 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:09,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:09,836 INFO L93 Difference]: Finished difference Result 10103 states and 35934 transitions. [2022-03-01 17:43:09,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-01 17:43:09,836 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:09,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:09,861 INFO L225 Difference]: With dead ends: 10103 [2022-03-01 17:43:09,862 INFO L226 Difference]: Without dead ends: 9996 [2022-03-01 17:43:09,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=433, Invalid=4259, Unknown=0, NotChecked=0, Total=4692 [2022-03-01 17:43:09,864 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 745 mSDsluCounter, 3871 mSDsCounter, 0 mSdLazyCounter, 5008 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 2596 SdHoareTripleChecker+Invalid, 5097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 5008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:09,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [745 Valid, 2596 Invalid, 5097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 5008 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-01 17:43:09,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9996 states. [2022-03-01 17:43:09,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9996 to 5376. [2022-03-01 17:43:09,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5376 states, 5375 states have (on average 3.5108837209302326) internal successors, (18871), 5375 states have internal predecessors, (18871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:09,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5376 states to 5376 states and 18871 transitions. [2022-03-01 17:43:09,977 INFO L78 Accepts]: Start accepts. Automaton has 5376 states and 18871 transitions. Word has length 47 [2022-03-01 17:43:09,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:09,977 INFO L470 AbstractCegarLoop]: Abstraction has 5376 states and 18871 transitions. [2022-03-01 17:43:09,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand 5376 states and 18871 transitions. [2022-03-01 17:43:09,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:09,986 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:09,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:09,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-01 17:43:09,986 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:09,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:09,986 INFO L85 PathProgramCache]: Analyzing trace with hash -839606979, now seen corresponding path program 23 times [2022-03-01 17:43:09,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:09,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264392200] [2022-03-01 17:43:09,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:09,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:10,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:10,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:10,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264392200] [2022-03-01 17:43:10,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264392200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:10,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:10,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:10,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092308606] [2022-03-01 17:43:10,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:10,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:10,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:10,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:10,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:10,247 INFO L87 Difference]: Start difference. First operand 5376 states and 18871 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:11,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:11,763 INFO L93 Difference]: Finished difference Result 6505 states and 22569 transitions. [2022-03-01 17:43:11,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 17:43:11,764 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:11,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:11,777 INFO L225 Difference]: With dead ends: 6505 [2022-03-01 17:43:11,778 INFO L226 Difference]: Without dead ends: 6384 [2022-03-01 17:43:11,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=207, Invalid=1955, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 17:43:11,778 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 478 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 2957 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 3005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:11,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 1448 Invalid, 3005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2957 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-01 17:43:11,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6384 states. [2022-03-01 17:43:11,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6384 to 5382. [2022-03-01 17:43:11,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 3.5093848727002417) internal successors, (18884), 5381 states have internal predecessors, (18884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:11,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 18884 transitions. [2022-03-01 17:43:11,874 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 18884 transitions. Word has length 47 [2022-03-01 17:43:11,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:11,874 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 18884 transitions. [2022-03-01 17:43:11,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:11,874 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 18884 transitions. [2022-03-01 17:43:11,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:11,883 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:11,883 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:11,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-01 17:43:11,883 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:11,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:11,884 INFO L85 PathProgramCache]: Analyzing trace with hash 731814457, now seen corresponding path program 24 times [2022-03-01 17:43:11,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:11,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9739727] [2022-03-01 17:43:11,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:11,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:12,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:12,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:12,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9739727] [2022-03-01 17:43:12,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9739727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:12,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:12,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:12,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63858386] [2022-03-01 17:43:12,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:12,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:12,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:12,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:12,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:12,173 INFO L87 Difference]: Start difference. First operand 5382 states and 18884 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:13,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:13,991 INFO L93 Difference]: Finished difference Result 6877 states and 23923 transitions. [2022-03-01 17:43:13,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 17:43:13,992 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:13,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:14,007 INFO L225 Difference]: With dead ends: 6877 [2022-03-01 17:43:14,007 INFO L226 Difference]: Without dead ends: 6633 [2022-03-01 17:43:14,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=2403, Unknown=0, NotChecked=0, Total=2652 [2022-03-01 17:43:14,008 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 462 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 3619 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 3668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:14,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 1730 Invalid, 3668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3619 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-01 17:43:14,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6633 states. [2022-03-01 17:43:14,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6633 to 5378. [2022-03-01 17:43:14,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 3.510135763436861) internal successors, (18874), 5377 states have internal predecessors, (18874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:14,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 18874 transitions. [2022-03-01 17:43:14,105 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 18874 transitions. Word has length 47 [2022-03-01 17:43:14,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:14,106 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 18874 transitions. [2022-03-01 17:43:14,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:14,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 18874 transitions. [2022-03-01 17:43:14,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:14,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:14,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:14,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-01 17:43:14,115 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:14,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:14,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1030706135, now seen corresponding path program 25 times [2022-03-01 17:43:14,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:14,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763927921] [2022-03-01 17:43:14,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:14,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:14,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:14,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:14,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763927921] [2022-03-01 17:43:14,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763927921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:14,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:14,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:43:14,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774987750] [2022-03-01 17:43:14,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:14,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:43:14,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:14,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:43:14,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:43:14,394 INFO L87 Difference]: Start difference. First operand 5378 states and 18874 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:15,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:15,623 INFO L93 Difference]: Finished difference Result 6370 states and 22134 transitions. [2022-03-01 17:43:15,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 17:43:15,623 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:15,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:15,637 INFO L225 Difference]: With dead ends: 6370 [2022-03-01 17:43:15,637 INFO L226 Difference]: Without dead ends: 6273 [2022-03-01 17:43:15,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=1479, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:43:15,638 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 359 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 2681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:15,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 1321 Invalid, 2681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2659 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:43:15,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6273 states. [2022-03-01 17:43:15,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6273 to 5392. [2022-03-01 17:43:15,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5392 states, 5391 states have (on average 3.506028566128733) internal successors, (18901), 5391 states have internal predecessors, (18901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:15,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 18901 transitions. [2022-03-01 17:43:15,723 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 18901 transitions. Word has length 47 [2022-03-01 17:43:15,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:15,723 INFO L470 AbstractCegarLoop]: Abstraction has 5392 states and 18901 transitions. [2022-03-01 17:43:15,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:15,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 18901 transitions. [2022-03-01 17:43:15,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:15,732 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:15,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:15,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-01 17:43:15,732 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:15,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:15,732 INFO L85 PathProgramCache]: Analyzing trace with hash -694714375, now seen corresponding path program 26 times [2022-03-01 17:43:15,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:15,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095135660] [2022-03-01 17:43:15,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:15,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:15,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:15,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:15,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095135660] [2022-03-01 17:43:15,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095135660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:15,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:15,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:15,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452717692] [2022-03-01 17:43:15,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:15,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:15,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:15,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:15,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:15,992 INFO L87 Difference]: Start difference. First operand 5392 states and 18901 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:17,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:17,316 INFO L93 Difference]: Finished difference Result 6271 states and 21829 transitions. [2022-03-01 17:43:17,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 17:43:17,316 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:17,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:17,329 INFO L225 Difference]: With dead ends: 6271 [2022-03-01 17:43:17,330 INFO L226 Difference]: Without dead ends: 6154 [2022-03-01 17:43:17,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=164, Invalid=1558, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 17:43:17,330 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 356 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 2774 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:17,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 1381 Invalid, 2798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2774 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:17,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2022-03-01 17:43:17,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 5366. [2022-03-01 17:43:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 3.5109040074557316) internal successors, (18836), 5365 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) [2022-03-01 17:43:17,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 18836 transitions. [2022-03-01 17:43:17,414 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 18836 transitions. Word has length 47 [2022-03-01 17:43:17,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:17,414 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 18836 transitions. [2022-03-01 17:43:17,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:17,414 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 18836 transitions. [2022-03-01 17:43:17,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:17,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:17,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:17,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-01 17:43:17,423 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:17,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:17,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1165544903, now seen corresponding path program 27 times [2022-03-01 17:43:17,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:17,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760499511] [2022-03-01 17:43:17,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:17,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:17,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:17,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:17,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760499511] [2022-03-01 17:43:17,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760499511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:17,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:17,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:17,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640434743] [2022-03-01 17:43:17,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:17,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:17,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:17,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:17,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:17,689 INFO L87 Difference]: Start difference. First operand 5366 states and 18836 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:19,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:19,009 INFO L93 Difference]: Finished difference Result 6663 states and 23172 transitions. [2022-03-01 17:43:19,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 17:43:19,010 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:19,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:19,024 INFO L225 Difference]: With dead ends: 6663 [2022-03-01 17:43:19,024 INFO L226 Difference]: Without dead ends: 6536 [2022-03-01 17:43:19,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=1629, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:43:19,025 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 475 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:19,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [475 Valid, 1370 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:19,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6536 states. [2022-03-01 17:43:19,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6536 to 5386. [2022-03-01 17:43:19,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5385 states have (on average 3.5086350974930363) internal successors, (18894), 5385 states have internal predecessors, (18894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:19,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 18894 transitions. [2022-03-01 17:43:19,114 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 18894 transitions. Word has length 47 [2022-03-01 17:43:19,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:19,114 INFO L470 AbstractCegarLoop]: Abstraction has 5386 states and 18894 transitions. [2022-03-01 17:43:19,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:19,114 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 18894 transitions. [2022-03-01 17:43:19,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:19,122 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:19,122 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:19,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-01 17:43:19,122 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:19,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:19,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1778673789, now seen corresponding path program 28 times [2022-03-01 17:43:19,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:19,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221196275] [2022-03-01 17:43:19,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:19,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:19,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:19,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:19,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221196275] [2022-03-01 17:43:19,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221196275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:19,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:19,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:19,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411849048] [2022-03-01 17:43:19,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:19,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:19,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:19,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:19,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:19,383 INFO L87 Difference]: Start difference. First operand 5386 states and 18894 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:21,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:21,431 INFO L93 Difference]: Finished difference Result 8560 states and 30207 transitions. [2022-03-01 17:43:21,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-01 17:43:21,432 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:21,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:21,450 INFO L225 Difference]: With dead ends: 8560 [2022-03-01 17:43:21,450 INFO L226 Difference]: Without dead ends: 8471 [2022-03-01 17:43:21,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=281, Invalid=2475, Unknown=0, NotChecked=0, Total=2756 [2022-03-01 17:43:21,451 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 659 mSDsluCounter, 3046 mSDsCounter, 0 mSdLazyCounter, 3715 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 3791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:21,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [659 Valid, 1862 Invalid, 3791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3715 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-01 17:43:21,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8471 states. [2022-03-01 17:43:21,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8471 to 5410. [2022-03-01 17:43:21,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 3.5067480125716397) internal successors, (18968), 5409 states have internal predecessors, (18968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:21,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 18968 transitions. [2022-03-01 17:43:21,543 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 18968 transitions. Word has length 47 [2022-03-01 17:43:21,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:21,543 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 18968 transitions. [2022-03-01 17:43:21,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:21,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 18968 transitions. [2022-03-01 17:43:21,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:21,551 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:21,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:21,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-01 17:43:21,552 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:21,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:21,552 INFO L85 PathProgramCache]: Analyzing trace with hash 928021881, now seen corresponding path program 29 times [2022-03-01 17:43:21,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:21,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815335602] [2022-03-01 17:43:21,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:21,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:21,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:21,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815335602] [2022-03-01 17:43:21,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815335602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:21,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:21,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:21,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432793576] [2022-03-01 17:43:21,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:21,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:21,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:21,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:21,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:21,824 INFO L87 Difference]: Start difference. First operand 5410 states and 18968 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:24,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:24,212 INFO L93 Difference]: Finished difference Result 9269 states and 32989 transitions. [2022-03-01 17:43:24,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-01 17:43:24,212 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:24,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:24,244 INFO L225 Difference]: With dead ends: 9269 [2022-03-01 17:43:24,244 INFO L226 Difference]: Without dead ends: 9166 [2022-03-01 17:43:24,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1000 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=357, Invalid=3549, Unknown=0, NotChecked=0, Total=3906 [2022-03-01 17:43:24,245 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 700 mSDsluCounter, 3468 mSDsCounter, 0 mSdLazyCounter, 4247 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 4323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 4247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:24,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 2156 Invalid, 4323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 4247 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:43:24,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9166 states. [2022-03-01 17:43:24,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9166 to 5390. [2022-03-01 17:43:24,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5389 states have (on average 3.5101131935424013) internal successors, (18916), 5389 states have internal predecessors, (18916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:24,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 18916 transitions. [2022-03-01 17:43:24,376 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 18916 transitions. Word has length 47 [2022-03-01 17:43:24,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:24,376 INFO L470 AbstractCegarLoop]: Abstraction has 5390 states and 18916 transitions. [2022-03-01 17:43:24,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:24,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 18916 transitions. [2022-03-01 17:43:24,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:24,385 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:24,385 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:24,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-01 17:43:24,385 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:24,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:24,386 INFO L85 PathProgramCache]: Analyzing trace with hash 376378455, now seen corresponding path program 30 times [2022-03-01 17:43:24,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:24,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590194494] [2022-03-01 17:43:24,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:24,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:24,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:24,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:24,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590194494] [2022-03-01 17:43:24,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590194494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:24,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:24,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:24,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460734241] [2022-03-01 17:43:24,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:24,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:24,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:24,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:24,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:24,658 INFO L87 Difference]: Start difference. First operand 5390 states and 18916 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:26,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:26,007 INFO L93 Difference]: Finished difference Result 6541 states and 22685 transitions. [2022-03-01 17:43:26,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 17:43:26,008 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:26,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:26,025 INFO L225 Difference]: With dead ends: 6541 [2022-03-01 17:43:26,026 INFO L226 Difference]: Without dead ends: 6414 [2022-03-01 17:43:26,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=1561, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 17:43:26,026 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 436 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 3039 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 3066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:26,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [436 Valid, 1433 Invalid, 3066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3039 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:26,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6414 states. [2022-03-01 17:43:26,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6414 to 5402. [2022-03-01 17:43:26,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 3.507868913164229) internal successors, (18946), 5401 states have internal predecessors, (18946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:26,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 18946 transitions. [2022-03-01 17:43:26,123 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 18946 transitions. Word has length 47 [2022-03-01 17:43:26,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:26,123 INFO L470 AbstractCegarLoop]: Abstraction has 5402 states and 18946 transitions. [2022-03-01 17:43:26,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:26,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 18946 transitions. [2022-03-01 17:43:26,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:26,132 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:26,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:26,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-01 17:43:26,132 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:26,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:26,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2091217581, now seen corresponding path program 31 times [2022-03-01 17:43:26,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:26,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540649865] [2022-03-01 17:43:26,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:26,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:26,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:26,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:26,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540649865] [2022-03-01 17:43:26,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540649865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:26,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:26,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:26,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340011116] [2022-03-01 17:43:26,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:26,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:26,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:26,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:26,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:26,377 INFO L87 Difference]: Start difference. First operand 5402 states and 18946 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:27,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:27,839 INFO L93 Difference]: Finished difference Result 6630 states and 22927 transitions. [2022-03-01 17:43:27,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 17:43:27,840 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:27,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:27,857 INFO L225 Difference]: With dead ends: 6630 [2022-03-01 17:43:27,858 INFO L226 Difference]: Without dead ends: 6533 [2022-03-01 17:43:27,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=1880, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 17:43:27,859 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 499 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 3081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:27,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 1500 Invalid, 3081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3049 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-01 17:43:27,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6533 states. [2022-03-01 17:43:28,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6533 to 5408. [2022-03-01 17:43:28,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5408 states, 5407 states have (on average 3.506750508599963) internal successors, (18961), 5407 states have internal predecessors, (18961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:28,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5408 states to 5408 states and 18961 transitions. [2022-03-01 17:43:28,029 INFO L78 Accepts]: Start accepts. Automaton has 5408 states and 18961 transitions. Word has length 47 [2022-03-01 17:43:28,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:28,029 INFO L470 AbstractCegarLoop]: Abstraction has 5408 states and 18961 transitions. [2022-03-01 17:43:28,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:28,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5408 states and 18961 transitions. [2022-03-01 17:43:28,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:28,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:28,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:28,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-01 17:43:28,040 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:28,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:28,040 INFO L85 PathProgramCache]: Analyzing trace with hash -2088543755, now seen corresponding path program 32 times [2022-03-01 17:43:28,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:28,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001135789] [2022-03-01 17:43:28,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:28,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:28,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:28,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:28,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001135789] [2022-03-01 17:43:28,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001135789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:28,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:28,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:28,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404362188] [2022-03-01 17:43:28,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:28,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:28,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:28,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:28,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:28,315 INFO L87 Difference]: Start difference. First operand 5408 states and 18961 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:29,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:29,662 INFO L93 Difference]: Finished difference Result 6511 states and 22582 transitions. [2022-03-01 17:43:29,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 17:43:29,662 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:29,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:29,678 INFO L225 Difference]: With dead ends: 6511 [2022-03-01 17:43:29,678 INFO L226 Difference]: Without dead ends: 6402 [2022-03-01 17:43:29,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=171, Invalid=1635, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:43:29,679 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 443 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 2836 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:29,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 1325 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2836 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:29,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6402 states. [2022-03-01 17:43:29,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6402 to 5390. [2022-03-01 17:43:29,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5389 states have (on average 3.5093709408053444) internal successors, (18912), 5389 states have internal predecessors, (18912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:29,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 18912 transitions. [2022-03-01 17:43:29,779 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 18912 transitions. Word has length 47 [2022-03-01 17:43:29,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:29,779 INFO L470 AbstractCegarLoop]: Abstraction has 5390 states and 18912 transitions. [2022-03-01 17:43:29,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:29,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 18912 transitions. [2022-03-01 17:43:29,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:29,788 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:29,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:29,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-01 17:43:29,788 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:29,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:29,789 INFO L85 PathProgramCache]: Analyzing trace with hash 897951869, now seen corresponding path program 33 times [2022-03-01 17:43:29,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:29,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518009490] [2022-03-01 17:43:29,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:29,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:30,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:30,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:30,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518009490] [2022-03-01 17:43:30,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518009490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:30,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:30,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:30,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681857794] [2022-03-01 17:43:30,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:30,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:30,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:30,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:30,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:30,063 INFO L87 Difference]: Start difference. First operand 5390 states and 18912 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:31,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:31,638 INFO L93 Difference]: Finished difference Result 6620 states and 22930 transitions. [2022-03-01 17:43:31,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 17:43:31,638 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:31,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:31,653 INFO L225 Difference]: With dead ends: 6620 [2022-03-01 17:43:31,654 INFO L226 Difference]: Without dead ends: 6499 [2022-03-01 17:43:31,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=2137, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 17:43:31,654 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 501 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 3216 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 3268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:31,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 1519 Invalid, 3268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3216 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-01 17:43:31,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2022-03-01 17:43:31,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 5396. [2022-03-01 17:43:31,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5396 states, 5395 states have (on average 3.5078776645041705) internal successors, (18925), 5395 states have internal predecessors, (18925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5396 states to 5396 states and 18925 transitions. [2022-03-01 17:43:31,737 INFO L78 Accepts]: Start accepts. Automaton has 5396 states and 18925 transitions. Word has length 47 [2022-03-01 17:43:31,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:31,737 INFO L470 AbstractCegarLoop]: Abstraction has 5396 states and 18925 transitions. [2022-03-01 17:43:31,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5396 states and 18925 transitions. [2022-03-01 17:43:31,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:31,745 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:31,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:31,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-01 17:43:31,745 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:31,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:31,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1825593991, now seen corresponding path program 34 times [2022-03-01 17:43:31,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:31,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200820637] [2022-03-01 17:43:31,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:31,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:32,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:32,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:32,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200820637] [2022-03-01 17:43:32,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200820637] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:32,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:32,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:32,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43425430] [2022-03-01 17:43:32,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:32,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:32,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:32,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:32,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:32,026 INFO L87 Difference]: Start difference. First operand 5396 states and 18925 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:33,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:33,952 INFO L93 Difference]: Finished difference Result 7773 states and 27053 transitions. [2022-03-01 17:43:33,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-01 17:43:33,952 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:33,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:33,969 INFO L225 Difference]: With dead ends: 7773 [2022-03-01 17:43:33,969 INFO L226 Difference]: Without dead ends: 7678 [2022-03-01 17:43:33,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=260, Invalid=2602, Unknown=0, NotChecked=0, Total=2862 [2022-03-01 17:43:33,970 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 585 mSDsluCounter, 3124 mSDsCounter, 0 mSdLazyCounter, 3763 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 3812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:33,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [585 Valid, 1812 Invalid, 3812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3763 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-01 17:43:33,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7678 states. [2022-03-01 17:43:34,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7678 to 5386. [2022-03-01 17:43:34,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5385 states have (on average 3.5093779015784587) internal successors, (18898), 5385 states have internal predecessors, (18898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:34,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 18898 transitions. [2022-03-01 17:43:34,063 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 18898 transitions. Word has length 47 [2022-03-01 17:43:34,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:34,063 INFO L470 AbstractCegarLoop]: Abstraction has 5386 states and 18898 transitions. [2022-03-01 17:43:34,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:34,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 18898 transitions. [2022-03-01 17:43:34,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:34,072 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:34,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:34,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-01 17:43:34,072 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:34,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:34,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1526702313, now seen corresponding path program 35 times [2022-03-01 17:43:34,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:34,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597892452] [2022-03-01 17:43:34,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:34,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:34,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:34,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:34,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597892452] [2022-03-01 17:43:34,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597892452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:34,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:34,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:34,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780139761] [2022-03-01 17:43:34,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:34,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:34,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:34,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:34,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:34,319 INFO L87 Difference]: Start difference. First operand 5386 states and 18898 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:35,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:35,824 INFO L93 Difference]: Finished difference Result 6616 states and 22882 transitions. [2022-03-01 17:43:35,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 17:43:35,824 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:35,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:35,838 INFO L225 Difference]: With dead ends: 6616 [2022-03-01 17:43:35,838 INFO L226 Difference]: Without dead ends: 6519 [2022-03-01 17:43:35,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=205, Invalid=1957, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 17:43:35,839 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 499 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 2988 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:35,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 1463 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2988 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-01 17:43:35,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6519 states. [2022-03-01 17:43:35,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6519 to 5394. [2022-03-01 17:43:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5394 states, 5393 states have (on average 3.5075097348414612) internal successors, (18916), 5393 states have internal predecessors, (18916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:35,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5394 states to 5394 states and 18916 transitions. [2022-03-01 17:43:35,925 INFO L78 Accepts]: Start accepts. Automaton has 5394 states and 18916 transitions. Word has length 47 [2022-03-01 17:43:35,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:35,925 INFO L470 AbstractCegarLoop]: Abstraction has 5394 states and 18916 transitions. [2022-03-01 17:43:35,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:35,925 INFO L276 IsEmpty]: Start isEmpty. Operand 5394 states and 18916 transitions. [2022-03-01 17:43:35,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:35,934 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:35,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:35,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-01 17:43:35,934 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:35,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:35,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1042844473, now seen corresponding path program 36 times [2022-03-01 17:43:35,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:35,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176311124] [2022-03-01 17:43:35,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:35,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:36,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:36,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176311124] [2022-03-01 17:43:36,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176311124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:36,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:36,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:36,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391641979] [2022-03-01 17:43:36,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:36,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:36,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:36,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:36,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:36,187 INFO L87 Difference]: Start difference. First operand 5394 states and 18916 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:37,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:37,561 INFO L93 Difference]: Finished difference Result 6497 states and 22537 transitions. [2022-03-01 17:43:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 17:43:37,562 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:37,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:37,576 INFO L225 Difference]: With dead ends: 6497 [2022-03-01 17:43:37,576 INFO L226 Difference]: Without dead ends: 6394 [2022-03-01 17:43:37,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=1709, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 17:43:37,580 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 424 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 3008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:37,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 1381 Invalid, 3008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2974 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:37,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6394 states. [2022-03-01 17:43:37,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6394 to 5382. [2022-03-01 17:43:37,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 3.510128228953726) internal successors, (18888), 5381 states have internal predecessors, (18888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:37,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 18888 transitions. [2022-03-01 17:43:37,665 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 18888 transitions. Word has length 47 [2022-03-01 17:43:37,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:37,665 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 18888 transitions. [2022-03-01 17:43:37,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:37,665 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 18888 transitions. [2022-03-01 17:43:37,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:37,673 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:37,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:37,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-01 17:43:37,673 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:37,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:37,673 INFO L85 PathProgramCache]: Analyzing trace with hash -539224437, now seen corresponding path program 37 times [2022-03-01 17:43:37,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:37,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337090212] [2022-03-01 17:43:37,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:37,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:37,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:37,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:37,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337090212] [2022-03-01 17:43:37,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337090212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:37,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:37,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:37,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629744724] [2022-03-01 17:43:37,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:37,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:37,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:37,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:37,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:37,946 INFO L87 Difference]: Start difference. First operand 5382 states and 18888 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:39,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:39,171 INFO L93 Difference]: Finished difference Result 6332 states and 22041 transitions. [2022-03-01 17:43:39,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 17:43:39,172 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:39,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:39,184 INFO L225 Difference]: With dead ends: 6332 [2022-03-01 17:43:39,184 INFO L226 Difference]: Without dead ends: 6205 [2022-03-01 17:43:39,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=149, Invalid=1411, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:43:39,185 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 378 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 2803 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 2824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:39,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 1315 Invalid, 2824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2803 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:39,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6205 states. [2022-03-01 17:43:39,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6205 to 5418. [2022-03-01 17:43:39,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 3.5078456710356285) internal successors, (19002), 5417 states have internal predecessors, (19002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:39,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 19002 transitions. [2022-03-01 17:43:39,262 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 19002 transitions. Word has length 47 [2022-03-01 17:43:39,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:39,262 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 19002 transitions. [2022-03-01 17:43:39,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:39,262 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 19002 transitions. [2022-03-01 17:43:39,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:39,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:39,270 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:39,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-01 17:43:39,270 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:39,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:39,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1288146823, now seen corresponding path program 38 times [2022-03-01 17:43:39,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:39,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389085611] [2022-03-01 17:43:39,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:39,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:39,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:39,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:39,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389085611] [2022-03-01 17:43:39,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389085611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:39,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:39,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:39,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208913102] [2022-03-01 17:43:39,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:39,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:39,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:39,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:39,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:39,533 INFO L87 Difference]: Start difference. First operand 5418 states and 19002 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:40,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:40,984 INFO L93 Difference]: Finished difference Result 6451 states and 22378 transitions. [2022-03-01 17:43:40,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 17:43:40,984 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:40,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:40,998 INFO L225 Difference]: With dead ends: 6451 [2022-03-01 17:43:40,998 INFO L226 Difference]: Without dead ends: 6354 [2022-03-01 17:43:40,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=1638, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:43:40,999 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 438 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 3031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:40,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 1468 Invalid, 3031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3002 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-01 17:43:41,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6354 states. [2022-03-01 17:43:41,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6354 to 5424. [2022-03-01 17:43:41,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 3.5067305919232896) internal successors, (19017), 5423 states have internal predecessors, (19017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:41,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 19017 transitions. [2022-03-01 17:43:41,079 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 19017 transitions. Word has length 47 [2022-03-01 17:43:41,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:41,080 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 19017 transitions. [2022-03-01 17:43:41,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:41,080 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 19017 transitions. [2022-03-01 17:43:41,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:41,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:41,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:41,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-01 17:43:41,088 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:41,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:41,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1290820649, now seen corresponding path program 39 times [2022-03-01 17:43:41,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:41,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961027319] [2022-03-01 17:43:41,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:41,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:41,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:41,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961027319] [2022-03-01 17:43:41,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961027319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:41,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:41,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:41,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771807596] [2022-03-01 17:43:41,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:41,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:41,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:41,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:41,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:41,364 INFO L87 Difference]: Start difference. First operand 5424 states and 19017 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:42,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:42,615 INFO L93 Difference]: Finished difference Result 6302 states and 21938 transitions. [2022-03-01 17:43:42,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 17:43:42,615 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:42,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:42,627 INFO L225 Difference]: With dead ends: 6302 [2022-03-01 17:43:42,627 INFO L226 Difference]: Without dead ends: 6193 [2022-03-01 17:43:42,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=1407, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:43:42,628 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 383 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 2828 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:42,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 1316 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2828 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:42,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6193 states. [2022-03-01 17:43:42,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6193 to 5406. [2022-03-01 17:43:42,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 3.50786308973173) internal successors, (18960), 5405 states have internal predecessors, (18960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:42,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 18960 transitions. [2022-03-01 17:43:42,705 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 18960 transitions. Word has length 47 [2022-03-01 17:43:42,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:42,705 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 18960 transitions. [2022-03-01 17:43:42,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:42,705 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 18960 transitions. [2022-03-01 17:43:42,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:42,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:42,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:42,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-01 17:43:42,713 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:42,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:42,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1390506559, now seen corresponding path program 40 times [2022-03-01 17:43:42,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:42,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698039007] [2022-03-01 17:43:42,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:42,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:42,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:42,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:42,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698039007] [2022-03-01 17:43:42,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698039007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:42,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:42,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:43:42,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982780089] [2022-03-01 17:43:42,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:42,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:43:42,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:42,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:43:42,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:43:42,942 INFO L87 Difference]: Start difference. First operand 5406 states and 18960 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:44,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:44,176 INFO L93 Difference]: Finished difference Result 6337 states and 22094 transitions. [2022-03-01 17:43:44,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 17:43:44,177 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:44,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:44,189 INFO L225 Difference]: With dead ends: 6337 [2022-03-01 17:43:44,189 INFO L226 Difference]: Without dead ends: 6192 [2022-03-01 17:43:44,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=162, Invalid=1478, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:43:44,190 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 357 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 2662 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:44,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 1288 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2662 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:43:44,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6192 states. [2022-03-01 17:43:44,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6192 to 5418. [2022-03-01 17:43:44,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 3.505630422743216) internal successors, (18990), 5417 states have internal predecessors, (18990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:44,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 18990 transitions. [2022-03-01 17:43:44,269 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 18990 transitions. Word has length 47 [2022-03-01 17:43:44,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:44,269 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 18990 transitions. [2022-03-01 17:43:44,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:44,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 18990 transitions. [2022-03-01 17:43:44,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:44,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:44,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:44,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-01 17:43:44,294 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:44,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:44,295 INFO L85 PathProgramCache]: Analyzing trace with hash 2108036509, now seen corresponding path program 41 times [2022-03-01 17:43:44,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:44,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618920848] [2022-03-01 17:43:44,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:44,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:44,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:44,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:44,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618920848] [2022-03-01 17:43:44,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618920848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:44,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:44,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:44,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287631603] [2022-03-01 17:43:44,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:44,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:44,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:44,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:44,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:44,550 INFO L87 Difference]: Start difference. First operand 5418 states and 18990 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:45,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:45,895 INFO L93 Difference]: Finished difference Result 6358 states and 22098 transitions. [2022-03-01 17:43:45,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 17:43:45,895 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:45,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:45,908 INFO L225 Difference]: With dead ends: 6358 [2022-03-01 17:43:45,908 INFO L226 Difference]: Without dead ends: 6261 [2022-03-01 17:43:45,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=172, Invalid=1634, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:43:45,909 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 398 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 3041 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 3070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:45,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 1493 Invalid, 3070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3041 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:45,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6261 states. [2022-03-01 17:43:45,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6261 to 5424. [2022-03-01 17:43:45,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 3.5045177945786463) internal successors, (19005), 5423 states have internal predecessors, (19005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:45,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 19005 transitions. [2022-03-01 17:43:45,991 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 19005 transitions. Word has length 47 [2022-03-01 17:43:45,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:45,991 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 19005 transitions. [2022-03-01 17:43:45,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:45,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 19005 transitions. [2022-03-01 17:43:45,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:45,999 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:45,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:45,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-01 17:43:45,999 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:45,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:45,999 INFO L85 PathProgramCache]: Analyzing trace with hash 2110710335, now seen corresponding path program 42 times [2022-03-01 17:43:45,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:46,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191589049] [2022-03-01 17:43:46,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:46,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:46,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:46,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191589049] [2022-03-01 17:43:46,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191589049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:46,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:46,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:46,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784283886] [2022-03-01 17:43:46,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:46,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:46,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:46,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:46,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:46,242 INFO L87 Difference]: Start difference. First operand 5424 states and 19005 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:47,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:47,391 INFO L93 Difference]: Finished difference Result 6179 states and 21553 transitions. [2022-03-01 17:43:47,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 17:43:47,392 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:47,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:47,404 INFO L225 Difference]: With dead ends: 6179 [2022-03-01 17:43:47,404 INFO L226 Difference]: Without dead ends: 6046 [2022-03-01 17:43:47,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=154, Invalid=1406, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:43:47,404 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 340 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:47,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1198 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:43:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6046 states. [2022-03-01 17:43:47,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6046 to 5382. [2022-03-01 17:43:47,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 3.5086415164467573) internal successors, (18880), 5381 states have internal predecessors, (18880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:47,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 18880 transitions. [2022-03-01 17:43:47,521 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 18880 transitions. Word has length 47 [2022-03-01 17:43:47,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:47,521 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 18880 transitions. [2022-03-01 17:43:47,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:47,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 18880 transitions. [2022-03-01 17:43:47,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:47,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:47,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:47,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-01 17:43:47,529 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:47,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:47,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1938513479, now seen corresponding path program 43 times [2022-03-01 17:43:47,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:47,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997428790] [2022-03-01 17:43:47,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:47,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:47,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:47,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:47,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997428790] [2022-03-01 17:43:47,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997428790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:47,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:47,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:47,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720446437] [2022-03-01 17:43:47,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:47,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:47,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:47,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:47,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:47,762 INFO L87 Difference]: Start difference. First operand 5382 states and 18880 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:49,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:49,197 INFO L93 Difference]: Finished difference Result 6474 states and 22562 transitions. [2022-03-01 17:43:49,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 17:43:49,198 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:49,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:49,211 INFO L225 Difference]: With dead ends: 6474 [2022-03-01 17:43:49,211 INFO L226 Difference]: Without dead ends: 6289 [2022-03-01 17:43:49,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=2132, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 17:43:49,212 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 483 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 2981 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 3027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:49,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 1464 Invalid, 3027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2981 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:49,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6289 states. [2022-03-01 17:43:49,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6289 to 5386. [2022-03-01 17:43:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5385 states have (on average 3.5078922934076138) internal successors, (18890), 5385 states have internal predecessors, (18890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 18890 transitions. [2022-03-01 17:43:49,291 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 18890 transitions. Word has length 47 [2022-03-01 17:43:49,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:49,291 INFO L470 AbstractCegarLoop]: Abstraction has 5386 states and 18890 transitions. [2022-03-01 17:43:49,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:49,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 18890 transitions. [2022-03-01 17:43:49,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:49,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:49,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:49,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-01 17:43:49,300 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:49,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:49,300 INFO L85 PathProgramCache]: Analyzing trace with hash -2056005221, now seen corresponding path program 44 times [2022-03-01 17:43:49,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:49,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669385546] [2022-03-01 17:43:49,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:49,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:49,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:49,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:49,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669385546] [2022-03-01 17:43:49,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669385546] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:49,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:49,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:49,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843579832] [2022-03-01 17:43:49,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:49,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:49,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:49,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:49,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:49,553 INFO L87 Difference]: Start difference. First operand 5386 states and 18890 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:51,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:51,109 INFO L93 Difference]: Finished difference Result 6566 states and 22765 transitions. [2022-03-01 17:43:51,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 17:43:51,109 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:51,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:51,124 INFO L225 Difference]: With dead ends: 6566 [2022-03-01 17:43:51,124 INFO L226 Difference]: Without dead ends: 6429 [2022-03-01 17:43:51,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=225, Invalid=2127, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 17:43:51,124 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 497 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 3017 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:51,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 1436 Invalid, 3075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3017 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-01 17:43:51,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6429 states. [2022-03-01 17:43:51,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6429 to 5392. [2022-03-01 17:43:51,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5392 states, 5391 states have (on average 3.5063995548135782) internal successors, (18903), 5391 states have internal predecessors, (18903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:51,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 18903 transitions. [2022-03-01 17:43:51,205 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 18903 transitions. Word has length 47 [2022-03-01 17:43:51,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:51,205 INFO L470 AbstractCegarLoop]: Abstraction has 5392 states and 18903 transitions. [2022-03-01 17:43:51,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:51,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 18903 transitions. [2022-03-01 17:43:51,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:51,212 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:51,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:51,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-01 17:43:51,213 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:51,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:51,213 INFO L85 PathProgramCache]: Analyzing trace with hash -484583785, now seen corresponding path program 45 times [2022-03-01 17:43:51,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:51,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46358148] [2022-03-01 17:43:51,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:51,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:51,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:51,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46358148] [2022-03-01 17:43:51,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46358148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:51,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:51,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:51,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636728181] [2022-03-01 17:43:51,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:51,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:51,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:51,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:51,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:51,446 INFO L87 Difference]: Start difference. First operand 5392 states and 18903 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:53,787 INFO L93 Difference]: Finished difference Result 8647 states and 30313 transitions. [2022-03-01 17:43:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-01 17:43:53,787 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:53,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:53,806 INFO L225 Difference]: With dead ends: 8647 [2022-03-01 17:43:53,806 INFO L226 Difference]: Without dead ends: 8552 [2022-03-01 17:43:53,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=334, Invalid=3572, Unknown=0, NotChecked=0, Total=3906 [2022-03-01 17:43:53,808 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 627 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 4780 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 4860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 4780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:53,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 2407 Invalid, 4860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 4780 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-01 17:43:53,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8552 states. [2022-03-01 17:43:53,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8552 to 5390. [2022-03-01 17:43:53,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5389 states have (on average 3.5078864353312302) internal successors, (18904), 5389 states have internal predecessors, (18904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 18904 transitions. [2022-03-01 17:43:53,910 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 18904 transitions. Word has length 47 [2022-03-01 17:43:53,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:53,910 INFO L470 AbstractCegarLoop]: Abstraction has 5390 states and 18904 transitions. [2022-03-01 17:43:53,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:53,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 18904 transitions. [2022-03-01 17:43:53,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:53,918 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:53,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:53,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-01 17:43:53,919 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:53,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:53,919 INFO L85 PathProgramCache]: Analyzing trace with hash -185692107, now seen corresponding path program 46 times [2022-03-01 17:43:53,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:53,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184747853] [2022-03-01 17:43:53,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:53,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:54,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:54,187 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:54,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184747853] [2022-03-01 17:43:54,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184747853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:54,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:54,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:54,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159055733] [2022-03-01 17:43:54,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:54,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:54,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:54,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:54,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:54,188 INFO L87 Difference]: Start difference. First operand 5390 states and 18904 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:55,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:55,628 INFO L93 Difference]: Finished difference Result 6515 states and 22598 transitions. [2022-03-01 17:43:55,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 17:43:55,628 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:55,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:55,641 INFO L225 Difference]: With dead ends: 6515 [2022-03-01 17:43:55,641 INFO L226 Difference]: Without dead ends: 6418 [2022-03-01 17:43:55,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=209, Invalid=1953, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 17:43:55,642 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 461 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 2994 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 3037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:55,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 1456 Invalid, 3037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2994 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:43:55,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6418 states. [2022-03-01 17:43:55,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6418 to 5398. [2022-03-01 17:43:55,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5398 states, 5397 states have (on average 3.5060218639985177) internal successors, (18922), 5397 states have internal predecessors, (18922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:55,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5398 states to 5398 states and 18922 transitions. [2022-03-01 17:43:55,723 INFO L78 Accepts]: Start accepts. Automaton has 5398 states and 18922 transitions. Word has length 47 [2022-03-01 17:43:55,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:55,724 INFO L470 AbstractCegarLoop]: Abstraction has 5398 states and 18922 transitions. [2022-03-01 17:43:55,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:55,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5398 states and 18922 transitions. [2022-03-01 17:43:55,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:55,732 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:55,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:55,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-01 17:43:55,732 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:55,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:55,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1911112617, now seen corresponding path program 47 times [2022-03-01 17:43:55,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:55,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891354111] [2022-03-01 17:43:55,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:55,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:55,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:55,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891354111] [2022-03-01 17:43:55,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891354111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:55,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:55,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:55,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012586945] [2022-03-01 17:43:55,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:55,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:55,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:55,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:55,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:55,979 INFO L87 Difference]: Start difference. First operand 5398 states and 18922 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:57,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:57,255 INFO L93 Difference]: Finished difference Result 6336 states and 22053 transitions. [2022-03-01 17:43:57,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 17:43:57,256 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:57,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:57,268 INFO L225 Difference]: With dead ends: 6336 [2022-03-01 17:43:57,268 INFO L226 Difference]: Without dead ends: 6237 [2022-03-01 17:43:57,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=180, Invalid=1626, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:43:57,269 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 394 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 2600 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:57,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 1203 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2600 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:43:57,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6237 states. [2022-03-01 17:43:57,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6237 to 5390. [2022-03-01 17:43:57,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5389 states have (on average 3.507515308962702) internal successors, (18902), 5389 states have internal predecessors, (18902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:57,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 18902 transitions. [2022-03-01 17:43:57,382 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 18902 transitions. Word has length 47 [2022-03-01 17:43:57,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:57,382 INFO L470 AbstractCegarLoop]: Abstraction has 5390 states and 18902 transitions. [2022-03-01 17:43:57,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:57,382 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 18902 transitions. [2022-03-01 17:43:57,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:57,389 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:57,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:57,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-01 17:43:57,390 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:57,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:57,390 INFO L85 PathProgramCache]: Analyzing trace with hash -835368053, now seen corresponding path program 48 times [2022-03-01 17:43:57,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:57,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934770692] [2022-03-01 17:43:57,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:57,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:57,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:57,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:57,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:57,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934770692] [2022-03-01 17:43:57,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934770692] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:57,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:57,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:43:57,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535942534] [2022-03-01 17:43:57,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:57,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:43:57,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:57,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:43:57,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:43:57,628 INFO L87 Difference]: Start difference. First operand 5390 states and 18902 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:58,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:43:58,868 INFO L93 Difference]: Finished difference Result 6321 states and 22036 transitions. [2022-03-01 17:43:58,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 17:43:58,869 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:43:58,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:43:58,881 INFO L225 Difference]: With dead ends: 6321 [2022-03-01 17:43:58,881 INFO L226 Difference]: Without dead ends: 6176 [2022-03-01 17:43:58,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=1474, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:43:58,882 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 356 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 2699 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 2728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:43:58,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 1315 Invalid, 2728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2699 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:43:58,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6176 states. [2022-03-01 17:43:58,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6176 to 5402. [2022-03-01 17:43:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 3.505276800592483) internal successors, (18932), 5401 states have internal predecessors, (18932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:58,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 18932 transitions. [2022-03-01 17:43:58,960 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 18932 transitions. Word has length 47 [2022-03-01 17:43:58,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:43:58,960 INFO L470 AbstractCegarLoop]: Abstraction has 5402 states and 18932 transitions. [2022-03-01 17:43:58,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:43:58,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 18932 transitions. [2022-03-01 17:43:58,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:43:58,968 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:43:58,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:43:58,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-01 17:43:58,968 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:43:58,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:43:58,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1516146537, now seen corresponding path program 49 times [2022-03-01 17:43:58,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:43:58,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019545206] [2022-03-01 17:43:58,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:43:58,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:43:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:43:59,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:43:59,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:43:59,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019545206] [2022-03-01 17:43:59,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019545206] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:43:59,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:43:59,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:43:59,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841092389] [2022-03-01 17:43:59,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:43:59,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:43:59,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:43:59,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:43:59,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:43:59,207 INFO L87 Difference]: Start difference. First operand 5402 states and 18932 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:00,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:00,541 INFO L93 Difference]: Finished difference Result 6342 states and 22040 transitions. [2022-03-01 17:44:00,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 17:44:00,541 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:00,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:00,554 INFO L225 Difference]: With dead ends: 6342 [2022-03-01 17:44:00,555 INFO L226 Difference]: Without dead ends: 6245 [2022-03-01 17:44:00,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=1631, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:44:00,555 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 402 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 2948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:00,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 1444 Invalid, 2948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2916 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:44:00,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6245 states. [2022-03-01 17:44:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6245 to 5408. [2022-03-01 17:44:00,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5408 states, 5407 states have (on average 3.5041612724246347) internal successors, (18947), 5407 states have internal predecessors, (18947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:00,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5408 states to 5408 states and 18947 transitions. [2022-03-01 17:44:00,662 INFO L78 Accepts]: Start accepts. Automaton has 5408 states and 18947 transitions. Word has length 47 [2022-03-01 17:44:00,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:00,663 INFO L470 AbstractCegarLoop]: Abstraction has 5408 states and 18947 transitions. [2022-03-01 17:44:00,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:00,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5408 states and 18947 transitions. [2022-03-01 17:44:00,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:00,671 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:00,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:00,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-01 17:44:00,671 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:00,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:00,671 INFO L85 PathProgramCache]: Analyzing trace with hash -209273973, now seen corresponding path program 50 times [2022-03-01 17:44:00,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:00,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618174763] [2022-03-01 17:44:00,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:00,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:00,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:00,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:00,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618174763] [2022-03-01 17:44:00,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618174763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:00,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:00,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:00,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562357775] [2022-03-01 17:44:00,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:00,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:00,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:00,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:00,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:00,945 INFO L87 Difference]: Start difference. First operand 5408 states and 18947 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:02,108 INFO L93 Difference]: Finished difference Result 6163 states and 21495 transitions. [2022-03-01 17:44:02,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 17:44:02,108 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:02,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:02,120 INFO L225 Difference]: With dead ends: 6163 [2022-03-01 17:44:02,120 INFO L226 Difference]: Without dead ends: 6042 [2022-03-01 17:44:02,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=1403, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:44:02,121 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 327 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2577 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 2602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:02,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 1217 Invalid, 2602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2577 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:44:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6042 states. [2022-03-01 17:44:02,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6042 to 5378. [2022-03-01 17:44:02,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 3.5093918541937885) internal successors, (18870), 5377 states have internal predecessors, (18870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:02,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 18870 transitions. [2022-03-01 17:44:02,202 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 18870 transitions. Word has length 47 [2022-03-01 17:44:02,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:02,202 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 18870 transitions. [2022-03-01 17:44:02,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:02,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 18870 transitions. [2022-03-01 17:44:02,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:02,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:02,210 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:02,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-01 17:44:02,210 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:02,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:02,210 INFO L85 PathProgramCache]: Analyzing trace with hash -163058067, now seen corresponding path program 51 times [2022-03-01 17:44:02,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:02,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312119843] [2022-03-01 17:44:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:02,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:02,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:02,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:02,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312119843] [2022-03-01 17:44:02,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312119843] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:02,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:02,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-01 17:44:02,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64709870] [2022-03-01 17:44:02,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:02,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 17:44:02,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:02,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 17:44:02,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-01 17:44:02,450 INFO L87 Difference]: Start difference. First operand 5378 states and 18870 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:03,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:03,551 INFO L93 Difference]: Finished difference Result 6353 states and 22148 transitions. [2022-03-01 17:44:03,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 17:44:03,551 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:03,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:03,564 INFO L225 Difference]: With dead ends: 6353 [2022-03-01 17:44:03,564 INFO L226 Difference]: Without dead ends: 6216 [2022-03-01 17:44:03,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=1258, Unknown=0, NotChecked=0, Total=1406 [2022-03-01 17:44:03,565 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 322 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 2448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:03,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 1261 Invalid, 2448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:44:03,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6216 states. [2022-03-01 17:44:03,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6216 to 5458. [2022-03-01 17:44:03,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 3.507421660252886) internal successors, (19140), 5457 states have internal predecessors, (19140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:03,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 19140 transitions. [2022-03-01 17:44:03,670 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 19140 transitions. Word has length 47 [2022-03-01 17:44:03,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:03,671 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 19140 transitions. [2022-03-01 17:44:03,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:03,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 19140 transitions. [2022-03-01 17:44:03,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:03,681 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:03,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:03,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-01 17:44:03,681 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:03,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:03,681 INFO L85 PathProgramCache]: Analyzing trace with hash -971998675, now seen corresponding path program 52 times [2022-03-01 17:44:03,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:03,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92413064] [2022-03-01 17:44:03,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:03,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:03,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:03,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92413064] [2022-03-01 17:44:03,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92413064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:03,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:03,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:44:03,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239102701] [2022-03-01 17:44:03,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:03,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:44:03,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:03,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:44:03,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:44:03,905 INFO L87 Difference]: Start difference. First operand 5458 states and 19140 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:05,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:05,117 INFO L93 Difference]: Finished difference Result 6337 states and 22092 transitions. [2022-03-01 17:44:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 17:44:05,118 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:05,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:05,130 INFO L225 Difference]: With dead ends: 6337 [2022-03-01 17:44:05,130 INFO L226 Difference]: Without dead ends: 6192 [2022-03-01 17:44:05,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=1476, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:44:05,131 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 375 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 2696 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 2726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:05,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1356 Invalid, 2726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2696 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:44:05,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6192 states. [2022-03-01 17:44:05,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6192 to 5458. [2022-03-01 17:44:05,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 3.503023639362287) internal successors, (19116), 5457 states have internal predecessors, (19116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:05,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 19116 transitions. [2022-03-01 17:44:05,212 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 19116 transitions. Word has length 47 [2022-03-01 17:44:05,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:05,212 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 19116 transitions. [2022-03-01 17:44:05,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:05,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 19116 transitions. [2022-03-01 17:44:05,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:05,220 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:05,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:05,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-01 17:44:05,221 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:05,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:05,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1245654035, now seen corresponding path program 53 times [2022-03-01 17:44:05,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:05,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368953565] [2022-03-01 17:44:05,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:05,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:05,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:05,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:05,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368953565] [2022-03-01 17:44:05,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368953565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:05,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:05,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:44:05,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852800652] [2022-03-01 17:44:05,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:05,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:44:05,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:05,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:44:05,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:44:05,439 INFO L87 Difference]: Start difference. First operand 5458 states and 19116 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:06,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:06,654 INFO L93 Difference]: Finished difference Result 6385 states and 22268 transitions. [2022-03-01 17:44:06,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 17:44:06,654 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:06,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:06,666 INFO L225 Difference]: With dead ends: 6385 [2022-03-01 17:44:06,666 INFO L226 Difference]: Without dead ends: 6136 [2022-03-01 17:44:06,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=1476, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:44:06,667 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 373 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 2613 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:06,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 1331 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2613 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:44:06,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6136 states. [2022-03-01 17:44:06,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6136 to 5394. [2022-03-01 17:44:06,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5394 states, 5393 states have (on average 3.506026330428333) internal successors, (18908), 5393 states have internal predecessors, (18908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:06,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5394 states to 5394 states and 18908 transitions. [2022-03-01 17:44:06,765 INFO L78 Accepts]: Start accepts. Automaton has 5394 states and 18908 transitions. Word has length 47 [2022-03-01 17:44:06,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:06,765 INFO L470 AbstractCegarLoop]: Abstraction has 5394 states and 18908 transitions. [2022-03-01 17:44:06,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:06,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5394 states and 18908 transitions. [2022-03-01 17:44:06,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:06,773 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:06,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:06,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-01 17:44:06,774 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:06,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:06,774 INFO L85 PathProgramCache]: Analyzing trace with hash 489665227, now seen corresponding path program 54 times [2022-03-01 17:44:06,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:06,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130915581] [2022-03-01 17:44:06,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:06,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:06,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:06,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:06,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130915581] [2022-03-01 17:44:06,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130915581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:06,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:06,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:44:06,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309592389] [2022-03-01 17:44:06,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:07,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:44:07,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:07,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:44:07,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:44:07,000 INFO L87 Difference]: Start difference. First operand 5394 states and 18908 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:08,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:08,205 INFO L93 Difference]: Finished difference Result 6273 states and 21852 transitions. [2022-03-01 17:44:08,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 17:44:08,205 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:08,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:08,217 INFO L225 Difference]: With dead ends: 6273 [2022-03-01 17:44:08,217 INFO L226 Difference]: Without dead ends: 6136 [2022-03-01 17:44:08,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=1403, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:44:08,218 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 367 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 2623 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:08,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 1354 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2623 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:44:08,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6136 states. [2022-03-01 17:44:08,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6136 to 5412. [2022-03-01 17:44:08,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 3.50267972648309) internal successors, (18953), 5411 states have internal predecessors, (18953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:08,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 18953 transitions. [2022-03-01 17:44:08,299 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 18953 transitions. Word has length 47 [2022-03-01 17:44:08,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:08,299 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 18953 transitions. [2022-03-01 17:44:08,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:08,299 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 18953 transitions. [2022-03-01 17:44:08,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:08,307 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:08,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:08,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-01 17:44:08,307 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:08,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:08,308 INFO L85 PathProgramCache]: Analyzing trace with hash -319275381, now seen corresponding path program 55 times [2022-03-01 17:44:08,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:08,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481773109] [2022-03-01 17:44:08,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:08,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:08,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:08,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:08,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481773109] [2022-03-01 17:44:08,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481773109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:08,566 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:08,566 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:08,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530229394] [2022-03-01 17:44:08,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:08,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:08,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:08,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:08,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:08,566 INFO L87 Difference]: Start difference. First operand 5412 states and 18953 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:09,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:09,928 INFO L93 Difference]: Finished difference Result 6257 states and 21784 transitions. [2022-03-01 17:44:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 17:44:09,929 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:09,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:09,941 INFO L225 Difference]: With dead ends: 6257 [2022-03-01 17:44:09,941 INFO L226 Difference]: Without dead ends: 6112 [2022-03-01 17:44:09,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=174, Invalid=1632, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:44:09,941 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 424 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 2889 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 2929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:09,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 1452 Invalid, 2929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2889 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:44:09,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6112 states. [2022-03-01 17:44:10,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6112 to 5412. [2022-03-01 17:44:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 3.50157087414526) internal successors, (18947), 5411 states have internal predecessors, (18947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:10,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 18947 transitions. [2022-03-01 17:44:10,028 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 18947 transitions. Word has length 47 [2022-03-01 17:44:10,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:10,028 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 18947 transitions. [2022-03-01 17:44:10,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:10,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 18947 transitions. [2022-03-01 17:44:10,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:10,037 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:10,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:10,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-01 17:44:10,038 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:10,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:10,038 INFO L85 PathProgramCache]: Analyzing trace with hash 580620397, now seen corresponding path program 56 times [2022-03-01 17:44:10,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:10,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33214830] [2022-03-01 17:44:10,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:10,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:10,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:10,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:10,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33214830] [2022-03-01 17:44:10,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33214830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:10,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:10,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:10,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346816076] [2022-03-01 17:44:10,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:10,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:10,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:10,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:10,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:10,288 INFO L87 Difference]: Start difference. First operand 5412 states and 18947 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:12,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:12,819 INFO L93 Difference]: Finished difference Result 9782 states and 34633 transitions. [2022-03-01 17:44:12,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 17:44:12,819 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:12,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:12,840 INFO L225 Difference]: With dead ends: 9782 [2022-03-01 17:44:12,840 INFO L226 Difference]: Without dead ends: 9645 [2022-03-01 17:44:12,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1146 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=418, Invalid=3872, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 17:44:12,841 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 752 mSDsluCounter, 3362 mSDsCounter, 0 mSdLazyCounter, 4585 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 4691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 4585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:12,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 2176 Invalid, 4691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 4585 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-01 17:44:12,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9645 states. [2022-03-01 17:44:12,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9645 to 5502. [2022-03-01 17:44:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5501 states have (on average 3.498636611525177) internal successors, (19246), 5501 states have internal predecessors, (19246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 19246 transitions. [2022-03-01 17:44:12,993 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 19246 transitions. Word has length 47 [2022-03-01 17:44:12,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:12,993 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 19246 transitions. [2022-03-01 17:44:12,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:12,993 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 19246 transitions. [2022-03-01 17:44:13,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:13,003 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:13,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:13,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-01 17:44:13,003 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:13,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:13,003 INFO L85 PathProgramCache]: Analyzing trace with hash -270031511, now seen corresponding path program 57 times [2022-03-01 17:44:13,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:13,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350378155] [2022-03-01 17:44:13,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:13,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:13,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:13,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:13,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350378155] [2022-03-01 17:44:13,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350378155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:13,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:13,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:13,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656369355] [2022-03-01 17:44:13,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:13,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:13,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:13,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:13,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:13,255 INFO L87 Difference]: Start difference. First operand 5502 states and 19246 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:16,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:16,000 INFO L93 Difference]: Finished difference Result 10309 states and 36819 transitions. [2022-03-01 17:44:16,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-01 17:44:16,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:16,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:16,022 INFO L225 Difference]: With dead ends: 10309 [2022-03-01 17:44:16,023 INFO L226 Difference]: Without dead ends: 10202 [2022-03-01 17:44:16,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1392 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=441, Invalid=4529, Unknown=0, NotChecked=0, Total=4970 [2022-03-01 17:44:16,024 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 782 mSDsluCounter, 3694 mSDsCounter, 0 mSdLazyCounter, 4958 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 5059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 4958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:16,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [782 Valid, 2478 Invalid, 5059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 4958 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-01 17:44:16,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10202 states. [2022-03-01 17:44:16,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10202 to 5480. [2022-03-01 17:44:16,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 5479 states have (on average 3.5019164081036687) internal successors, (19187), 5479 states have internal predecessors, (19187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:16,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 19187 transitions. [2022-03-01 17:44:16,133 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 19187 transitions. Word has length 47 [2022-03-01 17:44:16,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:16,133 INFO L470 AbstractCegarLoop]: Abstraction has 5480 states and 19187 transitions. [2022-03-01 17:44:16,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:16,133 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 19187 transitions. [2022-03-01 17:44:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:16,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:16,141 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:16,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-01 17:44:16,141 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:16,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:16,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1410569935, now seen corresponding path program 58 times [2022-03-01 17:44:16,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:16,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583906159] [2022-03-01 17:44:16,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:16,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:16,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:16,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:16,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583906159] [2022-03-01 17:44:16,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583906159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:16,397 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:16,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:16,397 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261902370] [2022-03-01 17:44:16,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:16,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:16,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:16,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:16,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:16,398 INFO L87 Difference]: Start difference. First operand 5480 states and 19187 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:17,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:17,840 INFO L93 Difference]: Finished difference Result 6505 states and 22565 transitions. [2022-03-01 17:44:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 17:44:17,840 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:17,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:17,853 INFO L225 Difference]: With dead ends: 6505 [2022-03-01 17:44:17,854 INFO L226 Difference]: Without dead ends: 6384 [2022-03-01 17:44:17,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=1959, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 17:44:17,854 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 451 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 2987 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:17,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 1462 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2987 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:44:17,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6384 states. [2022-03-01 17:44:17,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6384 to 5486. [2022-03-01 17:44:17,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5486 states, 5485 states have (on average 3.5004557885141296) internal successors, (19200), 5485 states have internal predecessors, (19200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:17,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5486 states to 5486 states and 19200 transitions. [2022-03-01 17:44:17,936 INFO L78 Accepts]: Start accepts. Automaton has 5486 states and 19200 transitions. Word has length 47 [2022-03-01 17:44:17,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:17,936 INFO L470 AbstractCegarLoop]: Abstraction has 5486 states and 19200 transitions. [2022-03-01 17:44:17,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:17,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5486 states and 19200 transitions. [2022-03-01 17:44:17,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:17,944 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:17,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:17,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-01 17:44:17,944 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:17,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:17,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1312975925, now seen corresponding path program 59 times [2022-03-01 17:44:17,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:17,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149369348] [2022-03-01 17:44:17,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:17,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:18,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:18,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:18,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149369348] [2022-03-01 17:44:18,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149369348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:18,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:18,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:18,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865102884] [2022-03-01 17:44:18,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:18,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:18,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:18,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:18,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:18,190 INFO L87 Difference]: Start difference. First operand 5486 states and 19200 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:20,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:20,091 INFO L93 Difference]: Finished difference Result 7233 states and 25257 transitions. [2022-03-01 17:44:20,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-01 17:44:20,091 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:20,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:20,106 INFO L225 Difference]: With dead ends: 7233 [2022-03-01 17:44:20,106 INFO L226 Difference]: Without dead ends: 6989 [2022-03-01 17:44:20,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=256, Invalid=2606, Unknown=0, NotChecked=0, Total=2862 [2022-03-01 17:44:20,107 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 505 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 3938 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1885 SdHoareTripleChecker+Invalid, 3991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 3938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:20,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 1885 Invalid, 3991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 3938 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-01 17:44:20,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6989 states. [2022-03-01 17:44:20,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6989 to 5554. [2022-03-01 17:44:20,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5554 states, 5553 states have (on average 3.4979290473617866) internal successors, (19424), 5553 states have internal predecessors, (19424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:20,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5554 states to 5554 states and 19424 transitions. [2022-03-01 17:44:20,215 INFO L78 Accepts]: Start accepts. Automaton has 5554 states and 19424 transitions. Word has length 47 [2022-03-01 17:44:20,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:20,215 INFO L470 AbstractCegarLoop]: Abstraction has 5554 states and 19424 transitions. [2022-03-01 17:44:20,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:20,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5554 states and 19424 transitions. [2022-03-01 17:44:20,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:20,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:20,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:20,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-01 17:44:20,224 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:20,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:20,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1014084247, now seen corresponding path program 60 times [2022-03-01 17:44:20,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:20,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011768852] [2022-03-01 17:44:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:20,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:20,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:20,464 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011768852] [2022-03-01 17:44:20,464 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011768852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:20,464 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:20,464 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:20,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100462901] [2022-03-01 17:44:20,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:20,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:20,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:20,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:20,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:20,467 INFO L87 Difference]: Start difference. First operand 5554 states and 19424 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:21,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:21,828 INFO L93 Difference]: Finished difference Result 6522 states and 22604 transitions. [2022-03-01 17:44:21,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 17:44:21,828 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:21,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:21,842 INFO L225 Difference]: With dead ends: 6522 [2022-03-01 17:44:21,842 INFO L226 Difference]: Without dead ends: 6425 [2022-03-01 17:44:21,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=1715, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 17:44:21,843 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 379 mSDsluCounter, 2595 mSDsCounter, 0 mSdLazyCounter, 2893 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:21,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 1463 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2893 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:44:21,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6425 states. [2022-03-01 17:44:21,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6425 to 5568. [2022-03-01 17:44:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5568 states, 5567 states have (on average 3.493982396263697) internal successors, (19451), 5567 states have internal predecessors, (19451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 19451 transitions. [2022-03-01 17:44:21,929 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 19451 transitions. Word has length 47 [2022-03-01 17:44:21,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:21,929 INFO L470 AbstractCegarLoop]: Abstraction has 5568 states and 19451 transitions. [2022-03-01 17:44:21,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:21,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 19451 transitions. [2022-03-01 17:44:21,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:21,938 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:21,938 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:21,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-01 17:44:21,938 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:21,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:21,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1555462539, now seen corresponding path program 61 times [2022-03-01 17:44:21,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:21,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636958819] [2022-03-01 17:44:21,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:21,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:22,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:22,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:22,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636958819] [2022-03-01 17:44:22,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636958819] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:22,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:22,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:22,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153597957] [2022-03-01 17:44:22,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:22,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:22,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:22,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:22,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:22,176 INFO L87 Difference]: Start difference. First operand 5568 states and 19451 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:23,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:23,448 INFO L93 Difference]: Finished difference Result 6343 states and 22059 transitions. [2022-03-01 17:44:23,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 17:44:23,449 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:23,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:23,462 INFO L225 Difference]: With dead ends: 6343 [2022-03-01 17:44:23,462 INFO L226 Difference]: Without dead ends: 6238 [2022-03-01 17:44:23,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=162, Invalid=1560, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 17:44:23,462 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 335 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 2827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:23,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 1390 Invalid, 2827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2800 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:44:23,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6238 states. [2022-03-01 17:44:23,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6238 to 5554. [2022-03-01 17:44:23,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5554 states, 5553 states have (on average 3.4968485503331532) internal successors, (19418), 5553 states have internal predecessors, (19418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:23,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5554 states to 5554 states and 19418 transitions. [2022-03-01 17:44:23,544 INFO L78 Accepts]: Start accepts. Automaton has 5554 states and 19418 transitions. Word has length 47 [2022-03-01 17:44:23,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:23,544 INFO L470 AbstractCegarLoop]: Abstraction has 5554 states and 19418 transitions. [2022-03-01 17:44:23,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:23,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5554 states and 19418 transitions. [2022-03-01 17:44:23,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:23,553 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:23,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:23,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-01 17:44:23,554 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:23,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:23,554 INFO L85 PathProgramCache]: Analyzing trace with hash 800866843, now seen corresponding path program 62 times [2022-03-01 17:44:23,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:23,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206730146] [2022-03-01 17:44:23,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:23,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:23,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:23,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:23,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206730146] [2022-03-01 17:44:23,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206730146] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:23,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:23,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:23,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052354643] [2022-03-01 17:44:23,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:23,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:23,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:23,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:23,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:23,786 INFO L87 Difference]: Start difference. First operand 5554 states and 19418 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:25,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:25,172 INFO L93 Difference]: Finished difference Result 6616 states and 22995 transitions. [2022-03-01 17:44:25,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 17:44:25,172 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:25,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:25,185 INFO L225 Difference]: With dead ends: 6616 [2022-03-01 17:44:25,186 INFO L226 Difference]: Without dead ends: 6431 [2022-03-01 17:44:25,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=1870, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 17:44:25,186 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 455 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 2901 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:25,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [455 Valid, 1447 Invalid, 2940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2901 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:44:25,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6431 states. [2022-03-01 17:44:25,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6431 to 5558. [2022-03-01 17:44:25,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5558 states, 5557 states have (on average 3.496131005938456) internal successors, (19428), 5557 states have internal predecessors, (19428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:25,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5558 states to 5558 states and 19428 transitions. [2022-03-01 17:44:25,267 INFO L78 Accepts]: Start accepts. Automaton has 5558 states and 19428 transitions. Word has length 47 [2022-03-01 17:44:25,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:25,267 INFO L470 AbstractCegarLoop]: Abstraction has 5558 states and 19428 transitions. [2022-03-01 17:44:25,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:25,267 INFO L276 IsEmpty]: Start isEmpty. Operand 5558 states and 19428 transitions. [2022-03-01 17:44:25,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:25,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:25,275 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:25,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-01 17:44:25,275 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:25,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:25,276 INFO L85 PathProgramCache]: Analyzing trace with hash 683375101, now seen corresponding path program 63 times [2022-03-01 17:44:25,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:25,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294795033] [2022-03-01 17:44:25,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:25,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:25,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:25,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:25,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294795033] [2022-03-01 17:44:25,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294795033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:25,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:25,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:25,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504449906] [2022-03-01 17:44:25,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:25,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:25,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:25,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:25,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:25,513 INFO L87 Difference]: Start difference. First operand 5558 states and 19428 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:26,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:26,904 INFO L93 Difference]: Finished difference Result 6708 states and 23198 transitions. [2022-03-01 17:44:26,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 17:44:26,904 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:26,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:26,917 INFO L225 Difference]: With dead ends: 6708 [2022-03-01 17:44:26,918 INFO L226 Difference]: Without dead ends: 6571 [2022-03-01 17:44:26,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=204, Invalid=1866, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 17:44:26,918 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 471 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:26,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 1346 Invalid, 2828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:44:26,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6571 states. [2022-03-01 17:44:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6571 to 5564. [2022-03-01 17:44:26,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5563 states have (on average 3.494697105878123) internal successors, (19441), 5563 states have internal predecessors, (19441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:27,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 19441 transitions. [2022-03-01 17:44:27,003 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 19441 transitions. Word has length 47 [2022-03-01 17:44:27,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:27,003 INFO L470 AbstractCegarLoop]: Abstraction has 5564 states and 19441 transitions. [2022-03-01 17:44:27,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:27,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 19441 transitions. [2022-03-01 17:44:27,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:27,011 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:27,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:27,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-01 17:44:27,012 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:27,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:27,012 INFO L85 PathProgramCache]: Analyzing trace with hash -2040170759, now seen corresponding path program 64 times [2022-03-01 17:44:27,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:27,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201457084] [2022-03-01 17:44:27,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:27,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:27,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:27,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201457084] [2022-03-01 17:44:27,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201457084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:27,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:27,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:27,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950643237] [2022-03-01 17:44:27,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:27,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:27,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:27,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:27,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:27,251 INFO L87 Difference]: Start difference. First operand 5564 states and 19441 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:29,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:29,762 INFO L93 Difference]: Finished difference Result 9630 states and 33745 transitions. [2022-03-01 17:44:29,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-01 17:44:29,763 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:29,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:29,783 INFO L225 Difference]: With dead ends: 9630 [2022-03-01 17:44:29,783 INFO L226 Difference]: Without dead ends: 9390 [2022-03-01 17:44:29,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=339, Invalid=3567, Unknown=0, NotChecked=0, Total=3906 [2022-03-01 17:44:29,784 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 667 mSDsluCounter, 4449 mSDsCounter, 0 mSdLazyCounter, 5168 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 2827 SdHoareTripleChecker+Invalid, 5248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 5168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:29,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 2827 Invalid, 5248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 5168 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-01 17:44:29,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9390 states. [2022-03-01 17:44:29,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9390 to 5588. [2022-03-01 17:44:29,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5588 states, 5587 states have (on average 3.491856094505101) internal successors, (19509), 5587 states have internal predecessors, (19509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:29,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5588 states to 5588 states and 19509 transitions. [2022-03-01 17:44:29,909 INFO L78 Accepts]: Start accepts. Automaton has 5588 states and 19509 transitions. Word has length 47 [2022-03-01 17:44:29,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:29,909 INFO L470 AbstractCegarLoop]: Abstraction has 5588 states and 19509 transitions. [2022-03-01 17:44:29,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:29,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5588 states and 19509 transitions. [2022-03-01 17:44:29,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:29,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:29,917 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:29,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-01 17:44:29,918 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:29,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:29,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1741279081, now seen corresponding path program 65 times [2022-03-01 17:44:29,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:29,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294027219] [2022-03-01 17:44:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:29,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:30,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:30,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:30,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294027219] [2022-03-01 17:44:30,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294027219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:30,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:30,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:30,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156707994] [2022-03-01 17:44:30,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:30,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:30,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:30,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:30,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:30,156 INFO L87 Difference]: Start difference. First operand 5588 states and 19509 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:31,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:31,479 INFO L93 Difference]: Finished difference Result 6683 states and 23098 transitions. [2022-03-01 17:44:31,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 17:44:31,480 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:31,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:31,493 INFO L225 Difference]: With dead ends: 6683 [2022-03-01 17:44:31,493 INFO L226 Difference]: Without dead ends: 6586 [2022-03-01 17:44:31,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=186, Invalid=1706, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 17:44:31,494 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 412 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 2830 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:31,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1415 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2830 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:44:31,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6586 states. [2022-03-01 17:44:31,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6586 to 5596. [2022-03-01 17:44:31,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 5595 states have (on average 3.4900804289544234) internal successors, (19527), 5595 states have internal predecessors, (19527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:31,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 19527 transitions. [2022-03-01 17:44:31,579 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 19527 transitions. Word has length 47 [2022-03-01 17:44:31,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:31,579 INFO L470 AbstractCegarLoop]: Abstraction has 5596 states and 19527 transitions. [2022-03-01 17:44:31,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:31,579 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 19527 transitions. [2022-03-01 17:44:31,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:31,587 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:31,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:31,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-01 17:44:31,588 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:31,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:31,588 INFO L85 PathProgramCache]: Analyzing trace with hash 828267705, now seen corresponding path program 66 times [2022-03-01 17:44:31,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:31,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303078131] [2022-03-01 17:44:31,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:31,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:31,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:31,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:31,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303078131] [2022-03-01 17:44:31,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303078131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:31,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:31,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:31,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977782744] [2022-03-01 17:44:31,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:31,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:31,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:31,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:31,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:31,844 INFO L87 Difference]: Start difference. First operand 5596 states and 19527 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:33,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:33,045 INFO L93 Difference]: Finished difference Result 6504 states and 22553 transitions. [2022-03-01 17:44:33,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 17:44:33,046 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:33,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:33,058 INFO L225 Difference]: With dead ends: 6504 [2022-03-01 17:44:33,058 INFO L226 Difference]: Without dead ends: 6405 [2022-03-01 17:44:33,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=1404, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:44:33,062 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 343 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:33,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 1253 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2634 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:44:33,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2022-03-01 17:44:33,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 5588. [2022-03-01 17:44:33,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5588 states, 5587 states have (on average 3.4914981206371936) internal successors, (19507), 5587 states have internal predecessors, (19507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:33,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5588 states to 5588 states and 19507 transitions. [2022-03-01 17:44:33,143 INFO L78 Accepts]: Start accepts. Automaton has 5588 states and 19507 transitions. Word has length 47 [2022-03-01 17:44:33,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:33,143 INFO L470 AbstractCegarLoop]: Abstraction has 5588 states and 19507 transitions. [2022-03-01 17:44:33,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:33,143 INFO L276 IsEmpty]: Start isEmpty. Operand 5588 states and 19507 transitions. [2022-03-01 17:44:33,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:33,151 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:33,151 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:33,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-01 17:44:33,152 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:33,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:33,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1904012269, now seen corresponding path program 67 times [2022-03-01 17:44:33,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:33,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662801734] [2022-03-01 17:44:33,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:33,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:33,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:33,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:33,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662801734] [2022-03-01 17:44:33,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662801734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:33,398 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:33,398 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:44:33,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061818120] [2022-03-01 17:44:33,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:33,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:44:33,399 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:33,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:44:33,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:44:33,399 INFO L87 Difference]: Start difference. First operand 5588 states and 19507 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:34,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:34,493 INFO L93 Difference]: Finished difference Result 6489 states and 22536 transitions. [2022-03-01 17:44:34,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 17:44:34,493 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:34,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:34,506 INFO L225 Difference]: With dead ends: 6489 [2022-03-01 17:44:34,506 INFO L226 Difference]: Without dead ends: 6344 [2022-03-01 17:44:34,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=1329, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 17:44:34,507 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 327 mSDsluCounter, 2069 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:34,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 1196 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2402 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:44:34,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6344 states. [2022-03-01 17:44:34,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6344 to 5600. [2022-03-01 17:44:34,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5600 states, 5599 states have (on average 3.4893731023397034) internal successors, (19537), 5599 states have internal predecessors, (19537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:34,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5600 states to 5600 states and 19537 transitions. [2022-03-01 17:44:34,590 INFO L78 Accepts]: Start accepts. Automaton has 5600 states and 19537 transitions. Word has length 47 [2022-03-01 17:44:34,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:34,590 INFO L470 AbstractCegarLoop]: Abstraction has 5600 states and 19537 transitions. [2022-03-01 17:44:34,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:34,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5600 states and 19537 transitions. [2022-03-01 17:44:34,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:34,598 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:34,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:34,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-01 17:44:34,599 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:34,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:34,599 INFO L85 PathProgramCache]: Analyzing trace with hash -39440437, now seen corresponding path program 68 times [2022-03-01 17:44:34,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:34,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310787278] [2022-03-01 17:44:34,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:34,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:34,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:34,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310787278] [2022-03-01 17:44:34,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310787278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:34,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:34,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:34,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33501529] [2022-03-01 17:44:34,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:34,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:34,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:34,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:34,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:34,839 INFO L87 Difference]: Start difference. First operand 5600 states and 19537 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:36,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:36,063 INFO L93 Difference]: Finished difference Result 6510 states and 22540 transitions. [2022-03-01 17:44:36,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 17:44:36,064 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:36,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:36,076 INFO L225 Difference]: With dead ends: 6510 [2022-03-01 17:44:36,076 INFO L226 Difference]: Without dead ends: 6413 [2022-03-01 17:44:36,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=1479, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:44:36,077 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 362 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:36,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1327 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2612 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:44:36,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6413 states. [2022-03-01 17:44:36,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6413 to 5606. [2022-03-01 17:44:36,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5606 states, 5605 states have (on average 3.488314005352364) internal successors, (19552), 5605 states have internal predecessors, (19552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:36,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 19552 transitions. [2022-03-01 17:44:36,157 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 19552 transitions. Word has length 47 [2022-03-01 17:44:36,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:36,157 INFO L470 AbstractCegarLoop]: Abstraction has 5606 states and 19552 transitions. [2022-03-01 17:44:36,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:36,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 19552 transitions. [2022-03-01 17:44:36,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:36,165 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:36,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:36,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-01 17:44:36,165 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:36,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:36,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1764860947, now seen corresponding path program 69 times [2022-03-01 17:44:36,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:36,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315946929] [2022-03-01 17:44:36,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:36,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:36,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:36,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:36,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315946929] [2022-03-01 17:44:36,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315946929] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:36,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:36,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:36,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567604944] [2022-03-01 17:44:36,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:36,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:36,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:36,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:36,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:36,414 INFO L87 Difference]: Start difference. First operand 5606 states and 19552 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:37,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:37,479 INFO L93 Difference]: Finished difference Result 6331 states and 21995 transitions. [2022-03-01 17:44:37,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 17:44:37,479 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:37,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:37,492 INFO L225 Difference]: With dead ends: 6331 [2022-03-01 17:44:37,492 INFO L226 Difference]: Without dead ends: 6170 [2022-03-01 17:44:37,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=1264, Unknown=0, NotChecked=0, Total=1406 [2022-03-01 17:44:37,492 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 296 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:37,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 1145 Invalid, 2369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2351 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:44:37,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6170 states. [2022-03-01 17:44:37,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6170 to 5536. [2022-03-01 17:44:37,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5536 states, 5535 states have (on average 3.499728997289973) internal successors, (19371), 5535 states have internal predecessors, (19371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:37,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5536 states to 5536 states and 19371 transitions. [2022-03-01 17:44:37,572 INFO L78 Accepts]: Start accepts. Automaton has 5536 states and 19371 transitions. Word has length 47 [2022-03-01 17:44:37,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:37,573 INFO L470 AbstractCegarLoop]: Abstraction has 5536 states and 19371 transitions. [2022-03-01 17:44:37,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:37,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5536 states and 19371 transitions. [2022-03-01 17:44:37,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:37,581 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:37,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:37,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-01 17:44:37,581 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:37,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:37,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1533599137, now seen corresponding path program 70 times [2022-03-01 17:44:37,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:37,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576635156] [2022-03-01 17:44:37,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:37,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:37,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:37,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:37,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576635156] [2022-03-01 17:44:37,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576635156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:37,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:37,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-01 17:44:37,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665847957] [2022-03-01 17:44:37,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:37,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 17:44:37,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:37,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 17:44:37,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-01 17:44:37,801 INFO L87 Difference]: Start difference. First operand 5536 states and 19371 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:38,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:38,961 INFO L93 Difference]: Finished difference Result 6663 states and 23163 transitions. [2022-03-01 17:44:38,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 17:44:38,961 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:38,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:38,975 INFO L225 Difference]: With dead ends: 6663 [2022-03-01 17:44:38,975 INFO L226 Difference]: Without dead ends: 6526 [2022-03-01 17:44:38,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=1396, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:44:38,975 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 381 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 2293 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 2319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:38,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 1147 Invalid, 2319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:44:38,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6526 states. [2022-03-01 17:44:39,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6526 to 5556. [2022-03-01 17:44:39,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5556 states, 5555 states have (on average 3.499009900990099) internal successors, (19437), 5555 states have internal predecessors, (19437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:39,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5556 states to 5556 states and 19437 transitions. [2022-03-01 17:44:39,066 INFO L78 Accepts]: Start accepts. Automaton has 5556 states and 19437 transitions. Word has length 47 [2022-03-01 17:44:39,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:39,066 INFO L470 AbstractCegarLoop]: Abstraction has 5556 states and 19437 transitions. [2022-03-01 17:44:39,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:39,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5556 states and 19437 transitions. [2022-03-01 17:44:39,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:39,074 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:39,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:39,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-01 17:44:39,075 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:39,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:39,075 INFO L85 PathProgramCache]: Analyzing trace with hash -15902915, now seen corresponding path program 71 times [2022-03-01 17:44:39,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:39,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872622470] [2022-03-01 17:44:39,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:39,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:39,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:39,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:39,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872622470] [2022-03-01 17:44:39,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872622470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:39,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:39,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:44:39,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420140137] [2022-03-01 17:44:39,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:39,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:44:39,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:39,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:44:39,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:44:39,304 INFO L87 Difference]: Start difference. First operand 5556 states and 19437 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:40,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:40,551 INFO L93 Difference]: Finished difference Result 6722 states and 23322 transitions. [2022-03-01 17:44:40,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 17:44:40,552 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:40,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:40,565 INFO L225 Difference]: With dead ends: 6722 [2022-03-01 17:44:40,566 INFO L226 Difference]: Without dead ends: 6633 [2022-03-01 17:44:40,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=182, Invalid=1624, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:44:40,566 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 447 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 2538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:40,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 1202 Invalid, 2538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:44:40,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6633 states. [2022-03-01 17:44:40,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6633 to 5652. [2022-03-01 17:44:40,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5652 states, 5651 states have (on average 3.4919483277296055) internal successors, (19733), 5651 states have internal predecessors, (19733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:40,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5652 states to 5652 states and 19733 transitions. [2022-03-01 17:44:40,653 INFO L78 Accepts]: Start accepts. Automaton has 5652 states and 19733 transitions. Word has length 47 [2022-03-01 17:44:40,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:40,653 INFO L470 AbstractCegarLoop]: Abstraction has 5652 states and 19733 transitions. [2022-03-01 17:44:40,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:40,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5652 states and 19733 transitions. [2022-03-01 17:44:40,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:40,662 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:40,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:40,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-01 17:44:40,663 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:40,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:40,663 INFO L85 PathProgramCache]: Analyzing trace with hash 418126431, now seen corresponding path program 72 times [2022-03-01 17:44:40,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:40,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851157052] [2022-03-01 17:44:40,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:40,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:40,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:40,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:40,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851157052] [2022-03-01 17:44:40,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851157052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:40,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:40,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:44:40,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607553169] [2022-03-01 17:44:40,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:40,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:44:40,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:40,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:44:40,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:44:40,897 INFO L87 Difference]: Start difference. First operand 5652 states and 19733 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:42,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:42,199 INFO L93 Difference]: Finished difference Result 6695 states and 23235 transitions. [2022-03-01 17:44:42,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 17:44:42,200 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:42,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:42,213 INFO L225 Difference]: With dead ends: 6695 [2022-03-01 17:44:42,213 INFO L226 Difference]: Without dead ends: 6470 [2022-03-01 17:44:42,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=1633, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:44:42,214 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 392 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 2766 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:42,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 1434 Invalid, 2798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2766 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:44:42,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6470 states. [2022-03-01 17:44:42,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6470 to 5626. [2022-03-01 17:44:42,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5626 states, 5625 states have (on average 3.4922666666666666) internal successors, (19644), 5625 states have internal predecessors, (19644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:42,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5626 states to 5626 states and 19644 transitions. [2022-03-01 17:44:42,296 INFO L78 Accepts]: Start accepts. Automaton has 5626 states and 19644 transitions. Word has length 47 [2022-03-01 17:44:42,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:42,296 INFO L470 AbstractCegarLoop]: Abstraction has 5626 states and 19644 transitions. [2022-03-01 17:44:42,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:42,296 INFO L276 IsEmpty]: Start isEmpty. Operand 5626 states and 19644 transitions. [2022-03-01 17:44:42,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:42,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:42,305 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:42,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-01 17:44:42,305 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:42,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:42,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1979559917, now seen corresponding path program 73 times [2022-03-01 17:44:42,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:42,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450506029] [2022-03-01 17:44:42,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:42,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:42,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:42,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:42,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450506029] [2022-03-01 17:44:42,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450506029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:42,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:42,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:44:42,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814963515] [2022-03-01 17:44:42,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:42,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:44:42,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:42,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:44:42,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:44:42,539 INFO L87 Difference]: Start difference. First operand 5626 states and 19644 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:43,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:43,807 INFO L93 Difference]: Finished difference Result 6714 states and 23296 transitions. [2022-03-01 17:44:43,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 17:44:43,807 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:43,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:43,821 INFO L225 Difference]: With dead ends: 6714 [2022-03-01 17:44:43,821 INFO L226 Difference]: Without dead ends: 6625 [2022-03-01 17:44:43,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=1704, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 17:44:43,822 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 446 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 2675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:43,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 1284 Invalid, 2675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:44:43,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6625 states. [2022-03-01 17:44:43,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6625 to 5650. [2022-03-01 17:44:43,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5650 states, 5649 states have (on average 3.4908833421844574) internal successors, (19720), 5649 states have internal predecessors, (19720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:43,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5650 states to 5650 states and 19720 transitions. [2022-03-01 17:44:43,907 INFO L78 Accepts]: Start accepts. Automaton has 5650 states and 19720 transitions. Word has length 47 [2022-03-01 17:44:43,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:43,907 INFO L470 AbstractCegarLoop]: Abstraction has 5650 states and 19720 transitions. [2022-03-01 17:44:43,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:43,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5650 states and 19720 transitions. [2022-03-01 17:44:43,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:43,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:43,916 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:43,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-01 17:44:43,916 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:43,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:43,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1881378033, now seen corresponding path program 74 times [2022-03-01 17:44:43,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:43,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451309836] [2022-03-01 17:44:43,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:43,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:44,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:44,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:44,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451309836] [2022-03-01 17:44:44,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451309836] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:44,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:44,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:44:44,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268735227] [2022-03-01 17:44:44,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:44,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:44:44,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:44,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:44:44,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:44:44,160 INFO L87 Difference]: Start difference. First operand 5650 states and 19720 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:45,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:45,392 INFO L93 Difference]: Finished difference Result 6722 states and 23316 transitions. [2022-03-01 17:44:45,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 17:44:45,392 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:45,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:45,407 INFO L225 Difference]: With dead ends: 6722 [2022-03-01 17:44:45,407 INFO L226 Difference]: Without dead ends: 6617 [2022-03-01 17:44:45,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=1709, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 17:44:45,407 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 445 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:45,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [445 Valid, 1240 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:44:45,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6617 states. [2022-03-01 17:44:45,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6617 to 5642. [2022-03-01 17:44:45,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5642 states, 5641 states have (on average 3.490870413047332) internal successors, (19692), 5641 states have internal predecessors, (19692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:45,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5642 states to 5642 states and 19692 transitions. [2022-03-01 17:44:45,493 INFO L78 Accepts]: Start accepts. Automaton has 5642 states and 19692 transitions. Word has length 47 [2022-03-01 17:44:45,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:45,493 INFO L470 AbstractCegarLoop]: Abstraction has 5642 states and 19692 transitions. [2022-03-01 17:44:45,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:45,493 INFO L276 IsEmpty]: Start isEmpty. Operand 5642 states and 19692 transitions. [2022-03-01 17:44:45,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:45,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:45,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:45,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-01 17:44:45,502 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:45,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:45,502 INFO L85 PathProgramCache]: Analyzing trace with hash -608444325, now seen corresponding path program 75 times [2022-03-01 17:44:45,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:45,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912109557] [2022-03-01 17:44:45,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:45,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:45,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:45,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:45,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912109557] [2022-03-01 17:44:45,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912109557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:45,727 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:45,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:44:45,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547449744] [2022-03-01 17:44:45,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:45,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:44:45,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:45,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:44:45,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:44:45,727 INFO L87 Difference]: Start difference. First operand 5642 states and 19692 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:46,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:46,961 INFO L93 Difference]: Finished difference Result 6719 states and 23321 transitions. [2022-03-01 17:44:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 17:44:46,962 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:46,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:46,975 INFO L225 Difference]: With dead ends: 6719 [2022-03-01 17:44:46,975 INFO L226 Difference]: Without dead ends: 6494 [2022-03-01 17:44:46,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=1629, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:44:46,975 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 422 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 2600 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:46,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 1273 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2600 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:44:46,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6494 states. [2022-03-01 17:44:47,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6494 to 5562. [2022-03-01 17:44:47,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5562 states, 5561 states have (on average 3.4950548462506745) internal successors, (19436), 5561 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5562 states to 5562 states and 19436 transitions. [2022-03-01 17:44:47,056 INFO L78 Accepts]: Start accepts. Automaton has 5562 states and 19436 transitions. Word has length 47 [2022-03-01 17:44:47,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:47,056 INFO L470 AbstractCegarLoop]: Abstraction has 5562 states and 19436 transitions. [2022-03-01 17:44:47,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:47,056 INFO L276 IsEmpty]: Start isEmpty. Operand 5562 states and 19436 transitions. [2022-03-01 17:44:47,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:47,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:47,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:47,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-01 17:44:47,064 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:47,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:47,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1885476099, now seen corresponding path program 76 times [2022-03-01 17:44:47,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:47,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044480591] [2022-03-01 17:44:47,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:47,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:47,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:47,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044480591] [2022-03-01 17:44:47,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044480591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:47,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:47,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:44:47,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452654080] [2022-03-01 17:44:47,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:47,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:44:47,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:47,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:44:47,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:44:47,291 INFO L87 Difference]: Start difference. First operand 5562 states and 19436 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:49,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:49,520 INFO L93 Difference]: Finished difference Result 8647 states and 30259 transitions. [2022-03-01 17:44:49,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-01 17:44:49,520 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:49,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:49,538 INFO L225 Difference]: With dead ends: 8647 [2022-03-01 17:44:49,538 INFO L226 Difference]: Without dead ends: 8510 [2022-03-01 17:44:49,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 958 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=350, Invalid=3310, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 17:44:49,539 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 559 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 4209 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1987 SdHoareTripleChecker+Invalid, 4286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 4209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:49,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 1987 Invalid, 4286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 4209 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-01 17:44:49,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8510 states. [2022-03-01 17:44:49,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8510 to 5600. [2022-03-01 17:44:49,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5600 states, 5599 states have (on average 3.4911591355599216) internal successors, (19547), 5599 states have internal predecessors, (19547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:49,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5600 states to 5600 states and 19547 transitions. [2022-03-01 17:44:49,634 INFO L78 Accepts]: Start accepts. Automaton has 5600 states and 19547 transitions. Word has length 47 [2022-03-01 17:44:49,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:49,635 INFO L470 AbstractCegarLoop]: Abstraction has 5600 states and 19547 transitions. [2022-03-01 17:44:49,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:49,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5600 states and 19547 transitions. [2022-03-01 17:44:49,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:49,643 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:49,643 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:49,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-01 17:44:49,643 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:49,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:49,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1899007521, now seen corresponding path program 77 times [2022-03-01 17:44:49,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:49,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856912127] [2022-03-01 17:44:49,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:49,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:49,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:49,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:49,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856912127] [2022-03-01 17:44:49,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856912127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:49,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:49,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:49,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751376840] [2022-03-01 17:44:49,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:49,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:49,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:49,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:49,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:49,916 INFO L87 Difference]: Start difference. First operand 5600 states and 19547 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:52,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:52,520 INFO L93 Difference]: Finished difference Result 9979 states and 35113 transitions. [2022-03-01 17:44:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-01 17:44:52,520 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:52,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:52,541 INFO L225 Difference]: With dead ends: 9979 [2022-03-01 17:44:52,541 INFO L226 Difference]: Without dead ends: 9890 [2022-03-01 17:44:52,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1195 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=422, Invalid=4000, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 17:44:52,542 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 731 mSDsluCounter, 3520 mSDsCounter, 0 mSdLazyCounter, 4567 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 4673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 4567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:52,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 2245 Invalid, 4673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 4567 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-01 17:44:52,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9890 states. [2022-03-01 17:44:52,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9890 to 5604. [2022-03-01 17:44:52,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5604 states, 5603 states have (on average 3.4900945921827593) internal successors, (19555), 5603 states have internal predecessors, (19555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:52,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5604 states to 5604 states and 19555 transitions. [2022-03-01 17:44:52,643 INFO L78 Accepts]: Start accepts. Automaton has 5604 states and 19555 transitions. Word has length 47 [2022-03-01 17:44:52,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:52,644 INFO L470 AbstractCegarLoop]: Abstraction has 5604 states and 19555 transitions. [2022-03-01 17:44:52,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:52,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5604 states and 19555 transitions. [2022-03-01 17:44:52,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:52,652 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:52,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:52,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-01 17:44:52,652 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:52,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:52,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1545307867, now seen corresponding path program 78 times [2022-03-01 17:44:52,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:52,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381157096] [2022-03-01 17:44:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:52,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:52,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:52,885 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:52,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381157096] [2022-03-01 17:44:52,885 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381157096] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:52,885 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:52,885 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:52,885 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408505134] [2022-03-01 17:44:52,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:52,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:52,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:52,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:52,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:52,885 INFO L87 Difference]: Start difference. First operand 5604 states and 19555 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:55,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:55,829 INFO L93 Difference]: Finished difference Result 10566 states and 37503 transitions. [2022-03-01 17:44:55,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-01 17:44:55,830 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:55,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:55,852 INFO L225 Difference]: With dead ends: 10566 [2022-03-01 17:44:55,852 INFO L226 Difference]: Without dead ends: 10459 [2022-03-01 17:44:55,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1446 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=445, Invalid=4667, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 17:44:55,853 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 755 mSDsluCounter, 4169 mSDsCounter, 0 mSdLazyCounter, 5272 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 5373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 5272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:55,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 2743 Invalid, 5373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 5272 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:44:55,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10459 states. [2022-03-01 17:44:55,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10459 to 5566. [2022-03-01 17:44:55,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5566 states, 5565 states have (on average 3.4936208445642407) internal successors, (19442), 5565 states have internal predecessors, (19442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:55,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5566 states to 5566 states and 19442 transitions. [2022-03-01 17:44:55,968 INFO L78 Accepts]: Start accepts. Automaton has 5566 states and 19442 transitions. Word has length 47 [2022-03-01 17:44:55,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:55,969 INFO L470 AbstractCegarLoop]: Abstraction has 5566 states and 19442 transitions. [2022-03-01 17:44:55,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:55,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5566 states and 19442 transitions. [2022-03-01 17:44:55,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:55,977 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:55,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:55,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-01 17:44:55,978 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:55,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:55,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1445941727, now seen corresponding path program 79 times [2022-03-01 17:44:55,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:55,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802252757] [2022-03-01 17:44:55,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:55,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:56,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:56,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:56,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802252757] [2022-03-01 17:44:56,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802252757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:56,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:56,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:56,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221662108] [2022-03-01 17:44:56,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:56,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:56,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:56,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:56,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:56,216 INFO L87 Difference]: Start difference. First operand 5566 states and 19442 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:57,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:57,643 INFO L93 Difference]: Finished difference Result 6918 states and 23853 transitions. [2022-03-01 17:44:57,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 17:44:57,644 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:57,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:57,658 INFO L225 Difference]: With dead ends: 6918 [2022-03-01 17:44:57,658 INFO L226 Difference]: Without dead ends: 6829 [2022-03-01 17:44:57,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=2038, Unknown=0, NotChecked=0, Total=2256 [2022-03-01 17:44:57,658 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 478 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 2853 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:57,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 1362 Invalid, 2890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2853 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:44:57,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6829 states. [2022-03-01 17:44:57,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6829 to 5576. [2022-03-01 17:44:57,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5576 states, 5575 states have (on average 3.4921973094170404) internal successors, (19469), 5575 states have internal predecessors, (19469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5576 states to 5576 states and 19469 transitions. [2022-03-01 17:44:57,742 INFO L78 Accepts]: Start accepts. Automaton has 5576 states and 19469 transitions. Word has length 47 [2022-03-01 17:44:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:57,743 INFO L470 AbstractCegarLoop]: Abstraction has 5576 states and 19469 transitions. [2022-03-01 17:44:57,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:57,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5576 states and 19469 transitions. [2022-03-01 17:44:57,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:57,751 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:57,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:57,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-01 17:44:57,751 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:57,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:57,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1122279903, now seen corresponding path program 80 times [2022-03-01 17:44:57,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:57,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496831839] [2022-03-01 17:44:57,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:57,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:57,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:57,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:57,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496831839] [2022-03-01 17:44:57,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496831839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:57,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:57,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:57,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584235263] [2022-03-01 17:44:57,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:57,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:57,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:57,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:57,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:57,984 INFO L87 Difference]: Start difference. First operand 5576 states and 19469 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:59,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:44:59,499 INFO L93 Difference]: Finished difference Result 6835 states and 23610 transitions. [2022-03-01 17:44:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 17:44:59,499 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:44:59,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:44:59,513 INFO L225 Difference]: With dead ends: 6835 [2022-03-01 17:44:59,513 INFO L226 Difference]: Without dead ends: 6714 [2022-03-01 17:44:59,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=227, Invalid=2223, Unknown=0, NotChecked=0, Total=2450 [2022-03-01 17:44:59,514 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 452 mSDsluCounter, 2671 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 3054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:44:59,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 1424 Invalid, 3054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-01 17:44:59,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6714 states. [2022-03-01 17:44:59,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6714 to 5572. [2022-03-01 17:44:59,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 5571 states have (on average 3.492191707054389) internal successors, (19455), 5571 states have internal predecessors, (19455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 19455 transitions. [2022-03-01 17:44:59,606 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 19455 transitions. Word has length 47 [2022-03-01 17:44:59,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:44:59,606 INFO L470 AbstractCegarLoop]: Abstraction has 5572 states and 19455 transitions. [2022-03-01 17:44:59,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:44:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 19455 transitions. [2022-03-01 17:44:59,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:44:59,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:44:59,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:44:59,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-01 17:44:59,614 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:44:59,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:44:59,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1277604133, now seen corresponding path program 81 times [2022-03-01 17:44:59,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:44:59,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725122420] [2022-03-01 17:44:59,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:44:59,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:44:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:44:59,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:44:59,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:44:59,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725122420] [2022-03-01 17:44:59,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725122420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:44:59,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:44:59,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:44:59,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354677089] [2022-03-01 17:44:59,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:44:59,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:44:59,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:44:59,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:44:59,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:44:59,845 INFO L87 Difference]: Start difference. First operand 5572 states and 19455 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:01,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:01,636 INFO L93 Difference]: Finished difference Result 7413 states and 25628 transitions. [2022-03-01 17:45:01,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-01 17:45:01,636 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:01,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:01,653 INFO L225 Difference]: With dead ends: 7413 [2022-03-01 17:45:01,653 INFO L226 Difference]: Without dead ends: 7298 [2022-03-01 17:45:01,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=248, Invalid=2404, Unknown=0, NotChecked=0, Total=2652 [2022-03-01 17:45:01,654 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 482 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 3545 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 3587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:01,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 1776 Invalid, 3587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3545 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-01 17:45:01,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7298 states. [2022-03-01 17:45:01,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7298 to 5684. [2022-03-01 17:45:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5684 states, 5683 states have (on average 3.4867147633292275) internal successors, (19815), 5683 states have internal predecessors, (19815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:01,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5684 states to 5684 states and 19815 transitions. [2022-03-01 17:45:01,787 INFO L78 Accepts]: Start accepts. Automaton has 5684 states and 19815 transitions. Word has length 47 [2022-03-01 17:45:01,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:01,787 INFO L470 AbstractCegarLoop]: Abstraction has 5684 states and 19815 transitions. [2022-03-01 17:45:01,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:01,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5684 states and 19815 transitions. [2022-03-01 17:45:01,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:01,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:01,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:01,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-01 17:45:01,796 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:01,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:01,796 INFO L85 PathProgramCache]: Analyzing trace with hash -978712455, now seen corresponding path program 82 times [2022-03-01 17:45:01,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:01,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705223364] [2022-03-01 17:45:01,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:01,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:02,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:02,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705223364] [2022-03-01 17:45:02,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705223364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:02,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:02,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:02,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945821349] [2022-03-01 17:45:02,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:02,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:02,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:02,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:02,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:02,035 INFO L87 Difference]: Start difference. First operand 5684 states and 19815 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:03,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:03,493 INFO L93 Difference]: Finished difference Result 6907 states and 23824 transitions. [2022-03-01 17:45:03,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 17:45:03,493 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:03,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:03,510 INFO L225 Difference]: With dead ends: 6907 [2022-03-01 17:45:03,510 INFO L226 Difference]: Without dead ends: 6810 [2022-03-01 17:45:03,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=198, Invalid=1964, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 17:45:03,510 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 409 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 3110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:03,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 1506 Invalid, 3110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 3075 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-01 17:45:03,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6810 states. [2022-03-01 17:45:03,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6810 to 5698. [2022-03-01 17:45:03,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5698 states, 5697 states have (on average 3.482885729331227) internal successors, (19842), 5697 states have internal predecessors, (19842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:03,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5698 states to 5698 states and 19842 transitions. [2022-03-01 17:45:03,601 INFO L78 Accepts]: Start accepts. Automaton has 5698 states and 19842 transitions. Word has length 47 [2022-03-01 17:45:03,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:03,601 INFO L470 AbstractCegarLoop]: Abstraction has 5698 states and 19842 transitions. [2022-03-01 17:45:03,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:03,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5698 states and 19842 transitions. [2022-03-01 17:45:03,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:03,610 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:03,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:03,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-01 17:45:03,610 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:03,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:03,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1590834331, now seen corresponding path program 83 times [2022-03-01 17:45:03,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:03,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928227479] [2022-03-01 17:45:03,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:03,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:03,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:03,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:03,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928227479] [2022-03-01 17:45:03,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928227479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:03,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:03,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:03,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462802054] [2022-03-01 17:45:03,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:03,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:03,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:03,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:03,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:03,846 INFO L87 Difference]: Start difference. First operand 5698 states and 19842 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:05,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:05,216 INFO L93 Difference]: Finished difference Result 6883 states and 23734 transitions. [2022-03-01 17:45:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 17:45:05,216 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:05,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:05,230 INFO L225 Difference]: With dead ends: 6883 [2022-03-01 17:45:05,230 INFO L226 Difference]: Without dead ends: 6778 [2022-03-01 17:45:05,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=1715, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 17:45:05,230 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 397 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 2920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:05,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [397 Valid, 1424 Invalid, 2920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:45:05,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6778 states. [2022-03-01 17:45:05,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6778 to 5684. [2022-03-01 17:45:05,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5684 states, 5683 states have (on average 3.4856589829315503) internal successors, (19809), 5683 states have internal predecessors, (19809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:05,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5684 states to 5684 states and 19809 transitions. [2022-03-01 17:45:05,309 INFO L78 Accepts]: Start accepts. Automaton has 5684 states and 19809 transitions. Word has length 47 [2022-03-01 17:45:05,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:05,309 INFO L470 AbstractCegarLoop]: Abstraction has 5684 states and 19809 transitions. [2022-03-01 17:45:05,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:05,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5684 states and 19809 transitions. [2022-03-01 17:45:05,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:05,317 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:05,317 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:05,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-01 17:45:05,317 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:05,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:05,318 INFO L85 PathProgramCache]: Analyzing trace with hash -384565221, now seen corresponding path program 84 times [2022-03-01 17:45:05,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:05,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224747554] [2022-03-01 17:45:05,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:05,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:05,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:05,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:05,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224747554] [2022-03-01 17:45:05,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224747554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:05,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:05,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:05,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425468355] [2022-03-01 17:45:05,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:05,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:05,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:05,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:05,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:05,603 INFO L87 Difference]: Start difference. First operand 5684 states and 19809 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:07,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:07,071 INFO L93 Difference]: Finished difference Result 6810 states and 23594 transitions. [2022-03-01 17:45:07,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 17:45:07,072 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:07,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:07,086 INFO L225 Difference]: With dead ends: 6810 [2022-03-01 17:45:07,086 INFO L226 Difference]: Without dead ends: 6721 [2022-03-01 17:45:07,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=231, Invalid=2121, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 17:45:07,086 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 522 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:07,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 1339 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2842 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:45:07,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2022-03-01 17:45:07,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 5704. [2022-03-01 17:45:07,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 3.485709275819744) internal successors, (19879), 5703 states have internal predecessors, (19879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 19879 transitions. [2022-03-01 17:45:07,172 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 19879 transitions. Word has length 47 [2022-03-01 17:45:07,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:07,172 INFO L470 AbstractCegarLoop]: Abstraction has 5704 states and 19879 transitions. [2022-03-01 17:45:07,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:07,172 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 19879 transitions. [2022-03-01 17:45:07,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:07,180 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:07,180 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:07,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-01 17:45:07,181 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:07,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:07,181 INFO L85 PathProgramCache]: Analyzing trace with hash -708227045, now seen corresponding path program 85 times [2022-03-01 17:45:07,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:07,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820694444] [2022-03-01 17:45:07,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:07,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:07,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:07,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:07,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820694444] [2022-03-01 17:45:07,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820694444] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:07,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:07,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:07,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064017855] [2022-03-01 17:45:07,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:07,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:07,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:07,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:07,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:07,421 INFO L87 Difference]: Start difference. First operand 5704 states and 19879 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:08,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:08,864 INFO L93 Difference]: Finished difference Result 6822 states and 23626 transitions. [2022-03-01 17:45:08,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 17:45:08,864 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:08,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:08,878 INFO L225 Difference]: With dead ends: 6822 [2022-03-01 17:45:08,879 INFO L226 Difference]: Without dead ends: 6693 [2022-03-01 17:45:08,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=224, Invalid=2128, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 17:45:08,879 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 502 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 2865 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:08,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 1359 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2865 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:45:08,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6693 states. [2022-03-01 17:45:08,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6693 to 5706. [2022-03-01 17:45:08,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5706 states, 5705 states have (on average 3.4839614373356707) internal successors, (19876), 5705 states have internal predecessors, (19876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:08,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 19876 transitions. [2022-03-01 17:45:08,966 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 19876 transitions. Word has length 47 [2022-03-01 17:45:08,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:08,966 INFO L470 AbstractCegarLoop]: Abstraction has 5706 states and 19876 transitions. [2022-03-01 17:45:08,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:08,966 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 19876 transitions. [2022-03-01 17:45:08,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:08,975 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:08,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:08,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-01 17:45:08,975 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:08,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:08,975 INFO L85 PathProgramCache]: Analyzing trace with hash -652115591, now seen corresponding path program 86 times [2022-03-01 17:45:08,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:08,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857058580] [2022-03-01 17:45:08,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:08,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:09,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:09,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857058580] [2022-03-01 17:45:09,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857058580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:09,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:09,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:09,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978270489] [2022-03-01 17:45:09,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:09,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:09,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:09,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:09,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:09,213 INFO L87 Difference]: Start difference. First operand 5706 states and 19876 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:10,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:10,666 INFO L93 Difference]: Finished difference Result 6855 states and 23757 transitions. [2022-03-01 17:45:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 17:45:10,666 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:10,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:10,680 INFO L225 Difference]: With dead ends: 6855 [2022-03-01 17:45:10,680 INFO L226 Difference]: Without dead ends: 6694 [2022-03-01 17:45:10,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=221, Invalid=2035, Unknown=0, NotChecked=0, Total=2256 [2022-03-01 17:45:10,681 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 476 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 2947 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 2992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:10,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1420 Invalid, 2992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2947 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:45:10,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6694 states. [2022-03-01 17:45:10,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6694 to 5690. [2022-03-01 17:45:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5690 states, 5689 states have (on average 3.4846194410265423) internal successors, (19824), 5689 states have internal predecessors, (19824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:10,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5690 states to 5690 states and 19824 transitions. [2022-03-01 17:45:10,769 INFO L78 Accepts]: Start accepts. Automaton has 5690 states and 19824 transitions. Word has length 47 [2022-03-01 17:45:10,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:10,769 INFO L470 AbstractCegarLoop]: Abstraction has 5690 states and 19824 transitions. [2022-03-01 17:45:10,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:10,770 INFO L276 IsEmpty]: Start isEmpty. Operand 5690 states and 19824 transitions. [2022-03-01 17:45:10,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:10,778 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:10,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:10,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-01 17:45:10,778 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:10,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:10,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1844482075, now seen corresponding path program 87 times [2022-03-01 17:45:10,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:10,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666892899] [2022-03-01 17:45:10,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:10,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:11,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:11,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:11,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666892899] [2022-03-01 17:45:11,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666892899] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:11,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:11,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:11,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987458734] [2022-03-01 17:45:11,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:11,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:11,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:11,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:11,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:11,015 INFO L87 Difference]: Start difference. First operand 5690 states and 19824 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:13,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:13,195 INFO L93 Difference]: Finished difference Result 8085 states and 28237 transitions. [2022-03-01 17:45:13,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-01 17:45:13,196 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:13,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:13,212 INFO L225 Difference]: With dead ends: 8085 [2022-03-01 17:45:13,212 INFO L226 Difference]: Without dead ends: 7980 [2022-03-01 17:45:13,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=383, Invalid=3907, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 17:45:13,213 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 640 mSDsluCounter, 3529 mSDsCounter, 0 mSdLazyCounter, 4003 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 4075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 4003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:13,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [640 Valid, 2244 Invalid, 4075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 4003 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-01 17:45:13,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7980 states. [2022-03-01 17:45:13,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7980 to 5716. [2022-03-01 17:45:13,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5716 states, 5715 states have (on average 3.483639545056868) internal successors, (19909), 5715 states have internal predecessors, (19909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:13,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5716 states to 5716 states and 19909 transitions. [2022-03-01 17:45:13,306 INFO L78 Accepts]: Start accepts. Automaton has 5716 states and 19909 transitions. Word has length 47 [2022-03-01 17:45:13,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:13,306 INFO L470 AbstractCegarLoop]: Abstraction has 5716 states and 19909 transitions. [2022-03-01 17:45:13,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:13,306 INFO L276 IsEmpty]: Start isEmpty. Operand 5716 states and 19909 transitions. [2022-03-01 17:45:13,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:13,314 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:13,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:13,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-01 17:45:13,314 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:13,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:13,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1069364473, now seen corresponding path program 88 times [2022-03-01 17:45:13,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:13,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298868180] [2022-03-01 17:45:13,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:13,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:13,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:13,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:13,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298868180] [2022-03-01 17:45:13,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298868180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:13,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:13,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:13,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439533362] [2022-03-01 17:45:13,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:13,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:13,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:13,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:13,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:13,548 INFO L87 Difference]: Start difference. First operand 5716 states and 19909 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:15,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:15,454 INFO L93 Difference]: Finished difference Result 7773 states and 27009 transitions. [2022-03-01 17:45:15,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 17:45:15,455 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:15,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:15,470 INFO L225 Difference]: With dead ends: 7773 [2022-03-01 17:45:15,470 INFO L226 Difference]: Without dead ends: 7678 [2022-03-01 17:45:15,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=301, Invalid=3005, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 17:45:15,471 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 563 mSDsluCounter, 3213 mSDsCounter, 0 mSdLazyCounter, 3628 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 3680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:15,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 1929 Invalid, 3680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3628 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-01 17:45:15,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7678 states. [2022-03-01 17:45:15,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7678 to 5708. [2022-03-01 17:45:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5708 states, 5707 states have (on average 3.485018398458034) internal successors, (19889), 5707 states have internal predecessors, (19889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:15,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5708 states to 5708 states and 19889 transitions. [2022-03-01 17:45:15,560 INFO L78 Accepts]: Start accepts. Automaton has 5708 states and 19889 transitions. Word has length 47 [2022-03-01 17:45:15,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:15,560 INFO L470 AbstractCegarLoop]: Abstraction has 5708 states and 19889 transitions. [2022-03-01 17:45:15,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:15,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5708 states and 19889 transitions. [2022-03-01 17:45:15,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:15,569 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:15,569 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:15,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-01 17:45:15,569 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:15,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:15,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1368256151, now seen corresponding path program 89 times [2022-03-01 17:45:15,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:15,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590539996] [2022-03-01 17:45:15,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:15,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:15,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:15,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590539996] [2022-03-01 17:45:15,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590539996] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:15,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:15,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:15,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420972430] [2022-03-01 17:45:15,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:15,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:15,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:15,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:15,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:15,806 INFO L87 Difference]: Start difference. First operand 5708 states and 19889 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:17,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:17,133 INFO L93 Difference]: Finished difference Result 6958 states and 23989 transitions. [2022-03-01 17:45:17,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 17:45:17,134 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:17,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:17,148 INFO L225 Difference]: With dead ends: 6958 [2022-03-01 17:45:17,148 INFO L226 Difference]: Without dead ends: 6861 [2022-03-01 17:45:17,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=1951, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 17:45:17,148 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 478 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 2665 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:17,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 1209 Invalid, 2701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2665 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:17,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6861 states. [2022-03-01 17:45:17,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6861 to 5716. [2022-03-01 17:45:17,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5716 states, 5715 states have (on average 3.4832895888013997) internal successors, (19907), 5715 states have internal predecessors, (19907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:17,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5716 states to 5716 states and 19907 transitions. [2022-03-01 17:45:17,235 INFO L78 Accepts]: Start accepts. Automaton has 5716 states and 19907 transitions. Word has length 47 [2022-03-01 17:45:17,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:17,235 INFO L470 AbstractCegarLoop]: Abstraction has 5716 states and 19907 transitions. [2022-03-01 17:45:17,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:17,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5716 states and 19907 transitions. [2022-03-01 17:45:17,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:17,244 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:17,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:17,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-01 17:45:17,244 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:17,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:17,244 INFO L85 PathProgramCache]: Analyzing trace with hash -357164359, now seen corresponding path program 90 times [2022-03-01 17:45:17,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:17,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58530448] [2022-03-01 17:45:17,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:17,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:17,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:17,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:17,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58530448] [2022-03-01 17:45:17,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58530448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:17,478 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:17,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:17,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212504560] [2022-03-01 17:45:17,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:17,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:17,478 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:17,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:17,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:17,479 INFO L87 Difference]: Start difference. First operand 5716 states and 19907 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:18,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:18,848 INFO L93 Difference]: Finished difference Result 6934 states and 23899 transitions. [2022-03-01 17:45:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 17:45:18,849 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:18,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:18,863 INFO L225 Difference]: With dead ends: 6934 [2022-03-01 17:45:18,864 INFO L226 Difference]: Without dead ends: 6835 [2022-03-01 17:45:18,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=192, Invalid=1788, Unknown=0, NotChecked=0, Total=1980 [2022-03-01 17:45:18,864 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 437 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 2698 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:18,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 1240 Invalid, 2731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2698 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:45:18,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6835 states. [2022-03-01 17:45:18,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6835 to 5708. [2022-03-01 17:45:18,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5708 states, 5707 states have (on average 3.4846679516383388) internal successors, (19887), 5707 states have internal predecessors, (19887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:18,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5708 states to 5708 states and 19887 transitions. [2022-03-01 17:45:18,951 INFO L78 Accepts]: Start accepts. Automaton has 5708 states and 19887 transitions. Word has length 47 [2022-03-01 17:45:18,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:18,951 INFO L470 AbstractCegarLoop]: Abstraction has 5708 states and 19887 transitions. [2022-03-01 17:45:18,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:18,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5708 states and 19887 transitions. [2022-03-01 17:45:18,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:18,959 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:18,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:18,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-01 17:45:18,960 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:18,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:18,960 INFO L85 PathProgramCache]: Analyzing trace with hash 718580205, now seen corresponding path program 91 times [2022-03-01 17:45:18,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:18,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949169158] [2022-03-01 17:45:18,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:18,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:19,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:19,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:19,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949169158] [2022-03-01 17:45:19,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949169158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:19,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:19,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:19,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520681278] [2022-03-01 17:45:19,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:19,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:19,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:19,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:19,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:19,189 INFO L87 Difference]: Start difference. First operand 5708 states and 19887 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:20,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:20,568 INFO L93 Difference]: Finished difference Result 6809 states and 23600 transitions. [2022-03-01 17:45:20,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 17:45:20,568 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:20,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:20,582 INFO L225 Difference]: With dead ends: 6809 [2022-03-01 17:45:20,582 INFO L226 Difference]: Without dead ends: 6664 [2022-03-01 17:45:20,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=201, Invalid=1869, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 17:45:20,583 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 461 mSDsluCounter, 2593 mSDsCounter, 0 mSdLazyCounter, 2963 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 3000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:20,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 1411 Invalid, 3000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2963 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:45:20,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6664 states. [2022-03-01 17:45:20,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6664 to 5720. [2022-03-01 17:45:20,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5720 states, 5719 states have (on average 3.4826018534708867) internal successors, (19917), 5719 states have internal predecessors, (19917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:20,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 19917 transitions. [2022-03-01 17:45:20,671 INFO L78 Accepts]: Start accepts. Automaton has 5720 states and 19917 transitions. Word has length 47 [2022-03-01 17:45:20,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:20,671 INFO L470 AbstractCegarLoop]: Abstraction has 5720 states and 19917 transitions. [2022-03-01 17:45:20,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:20,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5720 states and 19917 transitions. [2022-03-01 17:45:20,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:20,679 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:20,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:20,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-01 17:45:20,679 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:20,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:20,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1224872501, now seen corresponding path program 92 times [2022-03-01 17:45:20,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:20,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529836729] [2022-03-01 17:45:20,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:20,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:20,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:20,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:20,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529836729] [2022-03-01 17:45:20,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529836729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:20,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:20,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:20,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884020233] [2022-03-01 17:45:20,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:20,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:20,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:20,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:20,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:20,951 INFO L87 Difference]: Start difference. First operand 5720 states and 19917 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:22,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:22,224 INFO L93 Difference]: Finished difference Result 6809 states and 23523 transitions. [2022-03-01 17:45:22,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 17:45:22,224 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:22,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:22,238 INFO L225 Difference]: With dead ends: 6809 [2022-03-01 17:45:22,238 INFO L226 Difference]: Without dead ends: 6712 [2022-03-01 17:45:22,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=1706, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 17:45:22,239 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 439 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:22,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 1224 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:22,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6712 states. [2022-03-01 17:45:22,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6712 to 5726. [2022-03-01 17:45:22,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5726 states, 5725 states have (on average 3.481572052401747) internal successors, (19932), 5725 states have internal predecessors, (19932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:22,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5726 states to 5726 states and 19932 transitions. [2022-03-01 17:45:22,324 INFO L78 Accepts]: Start accepts. Automaton has 5726 states and 19932 transitions. Word has length 47 [2022-03-01 17:45:22,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:22,324 INFO L470 AbstractCegarLoop]: Abstraction has 5726 states and 19932 transitions. [2022-03-01 17:45:22,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:22,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5726 states and 19932 transitions. [2022-03-01 17:45:22,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:22,332 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:22,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:22,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-01 17:45:22,332 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:22,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:22,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1344674285, now seen corresponding path program 93 times [2022-03-01 17:45:22,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:22,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393603494] [2022-03-01 17:45:22,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:22,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:22,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:22,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:22,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393603494] [2022-03-01 17:45:22,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393603494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:22,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:22,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:22,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545233140] [2022-03-01 17:45:22,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:22,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:22,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:22,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:22,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:22,602 INFO L87 Difference]: Start difference. First operand 5726 states and 19932 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:23,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:23,883 INFO L93 Difference]: Finished difference Result 6710 states and 23218 transitions. [2022-03-01 17:45:23,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 17:45:23,884 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:23,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:23,897 INFO L225 Difference]: With dead ends: 6710 [2022-03-01 17:45:23,897 INFO L226 Difference]: Without dead ends: 6581 [2022-03-01 17:45:23,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=1629, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:45:23,897 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 386 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:23,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 1306 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2771 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:45:23,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6581 states. [2022-03-01 17:45:23,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6581 to 5688. [2022-03-01 17:45:24,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5688 states, 5687 states have (on average 3.489185862493406) internal successors, (19843), 5687 states have internal predecessors, (19843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:24,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5688 states to 5688 states and 19843 transitions. [2022-03-01 17:45:24,016 INFO L78 Accepts]: Start accepts. Automaton has 5688 states and 19843 transitions. Word has length 47 [2022-03-01 17:45:24,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:24,017 INFO L470 AbstractCegarLoop]: Abstraction has 5688 states and 19843 transitions. [2022-03-01 17:45:24,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:24,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5688 states and 19843 transitions. [2022-03-01 17:45:24,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:24,024 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:24,024 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:24,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-01 17:45:24,024 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:24,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:24,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1118815907, now seen corresponding path program 94 times [2022-03-01 17:45:24,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:24,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520736123] [2022-03-01 17:45:24,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:24,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:24,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:24,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:24,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520736123] [2022-03-01 17:45:24,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520736123] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:24,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:24,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-01 17:45:24,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428468330] [2022-03-01 17:45:24,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:24,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 17:45:24,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:24,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 17:45:24,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-01 17:45:24,239 INFO L87 Difference]: Start difference. First operand 5688 states and 19843 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:25,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:25,338 INFO L93 Difference]: Finished difference Result 6627 states and 22989 transitions. [2022-03-01 17:45:25,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 17:45:25,338 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:25,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:25,351 INFO L225 Difference]: With dead ends: 6627 [2022-03-01 17:45:25,351 INFO L226 Difference]: Without dead ends: 6490 [2022-03-01 17:45:25,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=1187, Unknown=0, NotChecked=0, Total=1332 [2022-03-01 17:45:25,352 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 305 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 2430 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 2448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:25,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1235 Invalid, 2448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2430 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:45:25,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6490 states. [2022-03-01 17:45:25,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6490 to 5704. [2022-03-01 17:45:25,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 3.4878134315272664) internal successors, (19891), 5703 states have internal predecessors, (19891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:25,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 19891 transitions. [2022-03-01 17:45:25,435 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 19891 transitions. Word has length 47 [2022-03-01 17:45:25,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:25,435 INFO L470 AbstractCegarLoop]: Abstraction has 5704 states and 19891 transitions. [2022-03-01 17:45:25,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:25,435 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 19891 transitions. [2022-03-01 17:45:25,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:25,443 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:25,443 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:25,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-01 17:45:25,444 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:25,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:25,444 INFO L85 PathProgramCache]: Analyzing trace with hash 398880315, now seen corresponding path program 95 times [2022-03-01 17:45:25,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:25,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071585590] [2022-03-01 17:45:25,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:25,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:25,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:25,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:25,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071585590] [2022-03-01 17:45:25,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071585590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:25,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:25,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:25,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806315353] [2022-03-01 17:45:25,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:25,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:25,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:25,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:25,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:25,670 INFO L87 Difference]: Start difference. First operand 5704 states and 19891 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:26,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:26,836 INFO L93 Difference]: Finished difference Result 6686 states and 23148 transitions. [2022-03-01 17:45:26,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 17:45:26,836 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:26,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:26,849 INFO L225 Difference]: With dead ends: 6686 [2022-03-01 17:45:26,849 INFO L226 Difference]: Without dead ends: 6597 [2022-03-01 17:45:26,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=1399, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:45:26,850 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 378 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:26,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 1217 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:26,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6597 states. [2022-03-01 17:45:26,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6597 to 5768. [2022-03-01 17:45:26,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5767 states have (on average 3.486561470435235) internal successors, (20107), 5767 states have internal predecessors, (20107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:26,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 20107 transitions. [2022-03-01 17:45:26,955 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 20107 transitions. Word has length 47 [2022-03-01 17:45:26,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:26,955 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 20107 transitions. [2022-03-01 17:45:26,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:26,955 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 20107 transitions. [2022-03-01 17:45:26,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:26,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:26,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:26,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-01 17:45:26,963 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:26,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:26,963 INFO L85 PathProgramCache]: Analyzing trace with hash 832909661, now seen corresponding path program 96 times [2022-03-01 17:45:26,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:26,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088953783] [2022-03-01 17:45:26,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:26,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:27,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:27,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:27,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088953783] [2022-03-01 17:45:27,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088953783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:27,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:27,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:27,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346257846] [2022-03-01 17:45:27,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:27,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:27,184 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:27,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:27,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:27,184 INFO L87 Difference]: Start difference. First operand 5768 states and 20107 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:28,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:28,311 INFO L93 Difference]: Finished difference Result 6579 states and 22821 transitions. [2022-03-01 17:45:28,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 17:45:28,311 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:28,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:28,324 INFO L225 Difference]: With dead ends: 6579 [2022-03-01 17:45:28,325 INFO L226 Difference]: Without dead ends: 6450 [2022-03-01 17:45:28,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=1262, Unknown=0, NotChecked=0, Total=1406 [2022-03-01 17:45:28,325 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 307 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 2602 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 2619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:28,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 1273 Invalid, 2619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2602 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:28,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6450 states. [2022-03-01 17:45:28,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6450 to 5768. [2022-03-01 17:45:28,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5767 states have (on average 3.4823998612796947) internal successors, (20083), 5767 states have internal predecessors, (20083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 20083 transitions. [2022-03-01 17:45:28,408 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 20083 transitions. Word has length 47 [2022-03-01 17:45:28,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:28,409 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 20083 transitions. [2022-03-01 17:45:28,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:28,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 20083 transitions. [2022-03-01 17:45:28,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:28,417 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:28,417 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:28,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-01 17:45:28,417 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:28,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:28,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1900624149, now seen corresponding path program 97 times [2022-03-01 17:45:28,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:28,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542488713] [2022-03-01 17:45:28,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:28,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:28,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:28,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542488713] [2022-03-01 17:45:28,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542488713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:28,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:28,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:28,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586216455] [2022-03-01 17:45:28,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:28,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:28,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:28,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:28,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:28,667 INFO L87 Difference]: Start difference. First operand 5768 states and 20083 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:29,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:29,875 INFO L93 Difference]: Finished difference Result 6638 states and 22988 transitions. [2022-03-01 17:45:29,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 17:45:29,876 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:29,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:29,889 INFO L225 Difference]: With dead ends: 6638 [2022-03-01 17:45:29,889 INFO L226 Difference]: Without dead ends: 6549 [2022-03-01 17:45:29,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=1470, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:45:29,890 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 387 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:29,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 1273 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:29,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6549 states. [2022-03-01 17:45:29,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6549 to 5768. [2022-03-01 17:45:29,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5767 states have (on average 3.4823998612796947) internal successors, (20083), 5767 states have internal predecessors, (20083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:29,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 20083 transitions. [2022-03-01 17:45:29,998 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 20083 transitions. Word has length 47 [2022-03-01 17:45:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:29,998 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 20083 transitions. [2022-03-01 17:45:29,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:29,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 20083 transitions. [2022-03-01 17:45:30,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:30,007 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:30,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:30,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-01 17:45:30,007 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:30,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:30,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1466594803, now seen corresponding path program 98 times [2022-03-01 17:45:30,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:30,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847286439] [2022-03-01 17:45:30,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:30,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:30,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:30,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:30,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847286439] [2022-03-01 17:45:30,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847286439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:30,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:30,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:30,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201242061] [2022-03-01 17:45:30,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:30,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:30,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:30,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:30,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:30,232 INFO L87 Difference]: Start difference. First operand 5768 states and 20083 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:31,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:31,362 INFO L93 Difference]: Finished difference Result 6630 states and 22960 transitions. [2022-03-01 17:45:31,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 17:45:31,362 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:31,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:31,376 INFO L225 Difference]: With dead ends: 6630 [2022-03-01 17:45:31,376 INFO L226 Difference]: Without dead ends: 6525 [2022-03-01 17:45:31,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=1326, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 17:45:31,376 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 367 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 2516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:31,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 1200 Invalid, 2516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:31,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6525 states. [2022-03-01 17:45:31,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6525 to 5784. [2022-03-01 17:45:31,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5783 states have (on average 3.4810651910772954) internal successors, (20131), 5783 states have internal predecessors, (20131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:31,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 20131 transitions. [2022-03-01 17:45:31,463 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 20131 transitions. Word has length 47 [2022-03-01 17:45:31,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:31,463 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 20131 transitions. [2022-03-01 17:45:31,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:31,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 20131 transitions. [2022-03-01 17:45:31,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:31,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:31,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:31,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-01 17:45:31,472 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:31,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:31,472 INFO L85 PathProgramCache]: Analyzing trace with hash -193661095, now seen corresponding path program 99 times [2022-03-01 17:45:31,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:31,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618025358] [2022-03-01 17:45:31,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:31,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:31,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:31,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:31,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618025358] [2022-03-01 17:45:31,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618025358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:31,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:31,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:31,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345106181] [2022-03-01 17:45:31,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:31,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:31,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:31,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:31,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:31,692 INFO L87 Difference]: Start difference. First operand 5784 states and 20131 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:32,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:32,860 INFO L93 Difference]: Finished difference Result 6643 states and 23013 transitions. [2022-03-01 17:45:32,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 17:45:32,860 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:32,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:32,900 INFO L225 Difference]: With dead ends: 6643 [2022-03-01 17:45:32,900 INFO L226 Difference]: Without dead ends: 6390 [2022-03-01 17:45:32,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=1329, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 17:45:32,900 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 337 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 2679 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:32,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 1361 Invalid, 2700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2679 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:32,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6390 states. [2022-03-01 17:45:32,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6390 to 5676. [2022-03-01 17:45:32,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5676 states, 5675 states have (on average 3.490925110132159) internal successors, (19811), 5675 states have internal predecessors, (19811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:32,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5676 states to 5676 states and 19811 transitions. [2022-03-01 17:45:32,976 INFO L78 Accepts]: Start accepts. Automaton has 5676 states and 19811 transitions. Word has length 47 [2022-03-01 17:45:32,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:32,976 INFO L470 AbstractCegarLoop]: Abstraction has 5676 states and 19811 transitions. [2022-03-01 17:45:32,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:32,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5676 states and 19811 transitions. [2022-03-01 17:45:32,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:32,984 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:32,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:32,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-01 17:45:32,984 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:32,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:32,985 INFO L85 PathProgramCache]: Analyzing trace with hash -79948249, now seen corresponding path program 100 times [2022-03-01 17:45:32,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:32,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028136924] [2022-03-01 17:45:32,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:32,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:33,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:33,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:33,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028136924] [2022-03-01 17:45:33,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028136924] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:33,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:33,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-01 17:45:33,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924895140] [2022-03-01 17:45:33,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:33,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 17:45:33,191 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:33,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 17:45:33,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-01 17:45:33,191 INFO L87 Difference]: Start difference. First operand 5676 states and 19811 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:34,252 INFO L93 Difference]: Finished difference Result 6495 states and 22527 transitions. [2022-03-01 17:45:34,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 17:45:34,252 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:34,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:34,265 INFO L225 Difference]: With dead ends: 6495 [2022-03-01 17:45:34,265 INFO L226 Difference]: Without dead ends: 6358 [2022-03-01 17:45:34,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=1191, Unknown=0, NotChecked=0, Total=1332 [2022-03-01 17:45:34,266 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 302 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2387 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:34,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1156 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2387 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:45:34,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6358 states. [2022-03-01 17:45:34,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6358 to 5732. [2022-03-01 17:45:34,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5732 states, 5731 states have (on average 3.486128075379515) internal successors, (19979), 5731 states have internal predecessors, (19979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:34,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5732 states to 5732 states and 19979 transitions. [2022-03-01 17:45:34,345 INFO L78 Accepts]: Start accepts. Automaton has 5732 states and 19979 transitions. Word has length 47 [2022-03-01 17:45:34,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:34,345 INFO L470 AbstractCegarLoop]: Abstraction has 5732 states and 19979 transitions. [2022-03-01 17:45:34,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:34,345 INFO L276 IsEmpty]: Start isEmpty. Operand 5732 states and 19979 transitions. [2022-03-01 17:45:34,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:34,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:34,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:34,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-01 17:45:34,353 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:34,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:34,354 INFO L85 PathProgramCache]: Analyzing trace with hash 637619751, now seen corresponding path program 101 times [2022-03-01 17:45:34,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:34,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117098084] [2022-03-01 17:45:34,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:34,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:34,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:34,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:34,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117098084] [2022-03-01 17:45:34,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117098084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:34,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:34,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:34,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190644702] [2022-03-01 17:45:34,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:34,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:34,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:34,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:34,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:34,572 INFO L87 Difference]: Start difference. First operand 5732 states and 19979 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:35,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:35,706 INFO L93 Difference]: Finished difference Result 6554 states and 22686 transitions. [2022-03-01 17:45:35,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 17:45:35,707 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:35,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:35,745 INFO L225 Difference]: With dead ends: 6554 [2022-03-01 17:45:35,745 INFO L226 Difference]: Without dead ends: 6465 [2022-03-01 17:45:35,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=1403, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:45:35,745 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 375 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 2455 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:35,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 1140 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2455 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:45:35,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6465 states. [2022-03-01 17:45:35,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6465 to 5796. [2022-03-01 17:45:35,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5796 states, 5795 states have (on average 3.4849007765314925) internal successors, (20195), 5795 states have internal predecessors, (20195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:35,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5796 states to 5796 states and 20195 transitions. [2022-03-01 17:45:35,825 INFO L78 Accepts]: Start accepts. Automaton has 5796 states and 20195 transitions. Word has length 47 [2022-03-01 17:45:35,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:35,825 INFO L470 AbstractCegarLoop]: Abstraction has 5796 states and 20195 transitions. [2022-03-01 17:45:35,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5796 states and 20195 transitions. [2022-03-01 17:45:35,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:35,833 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:35,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:35,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-01 17:45:35,833 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:35,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:35,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1046842935, now seen corresponding path program 102 times [2022-03-01 17:45:35,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:35,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648946898] [2022-03-01 17:45:35,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:35,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:36,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:36,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:36,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648946898] [2022-03-01 17:45:36,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648946898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:36,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:36,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:36,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372185071] [2022-03-01 17:45:36,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:36,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:36,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:36,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:36,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:36,060 INFO L87 Difference]: Start difference. First operand 5796 states and 20195 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:37,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:37,258 INFO L93 Difference]: Finished difference Result 6447 states and 22359 transitions. [2022-03-01 17:45:37,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 17:45:37,259 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:37,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:37,271 INFO L225 Difference]: With dead ends: 6447 [2022-03-01 17:45:37,272 INFO L226 Difference]: Without dead ends: 6318 [2022-03-01 17:45:37,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=1266, Unknown=0, NotChecked=0, Total=1406 [2022-03-01 17:45:37,272 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 310 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 2423 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:37,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 1121 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2423 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:37,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6318 states. [2022-03-01 17:45:37,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6318 to 5796. [2022-03-01 17:45:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5796 states, 5795 states have (on average 3.4807592752372734) internal successors, (20171), 5795 states have internal predecessors, (20171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:37,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5796 states to 5796 states and 20171 transitions. [2022-03-01 17:45:37,356 INFO L78 Accepts]: Start accepts. Automaton has 5796 states and 20171 transitions. Word has length 47 [2022-03-01 17:45:37,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:37,356 INFO L470 AbstractCegarLoop]: Abstraction has 5796 states and 20171 transitions. [2022-03-01 17:45:37,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:37,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5796 states and 20171 transitions. [2022-03-01 17:45:37,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:37,365 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:37,365 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:37,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-01 17:45:37,365 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:37,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:37,365 INFO L85 PathProgramCache]: Analyzing trace with hash 997297481, now seen corresponding path program 103 times [2022-03-01 17:45:37,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:37,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066437505] [2022-03-01 17:45:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:37,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:37,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:37,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:37,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066437505] [2022-03-01 17:45:37,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066437505] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:37,583 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:37,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:37,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781507204] [2022-03-01 17:45:37,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:37,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:37,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:37,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:37,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:37,583 INFO L87 Difference]: Start difference. First operand 5796 states and 20171 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:38,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:38,815 INFO L93 Difference]: Finished difference Result 6506 states and 22526 transitions. [2022-03-01 17:45:38,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 17:45:38,815 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:38,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:38,829 INFO L225 Difference]: With dead ends: 6506 [2022-03-01 17:45:38,830 INFO L226 Difference]: Without dead ends: 6417 [2022-03-01 17:45:38,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=162, Invalid=1478, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:45:38,830 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 385 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 2547 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:38,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [385 Valid, 1197 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2547 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:38,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6417 states. [2022-03-01 17:45:38,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6417 to 5796. [2022-03-01 17:45:38,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5796 states, 5795 states have (on average 3.4807592752372734) internal successors, (20171), 5795 states have internal predecessors, (20171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:38,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5796 states to 5796 states and 20171 transitions. [2022-03-01 17:45:38,915 INFO L78 Accepts]: Start accepts. Automaton has 5796 states and 20171 transitions. Word has length 47 [2022-03-01 17:45:38,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:38,916 INFO L470 AbstractCegarLoop]: Abstraction has 5796 states and 20171 transitions. [2022-03-01 17:45:38,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:38,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5796 states and 20171 transitions. [2022-03-01 17:45:38,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:38,924 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:38,925 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:38,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-01 17:45:38,925 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:38,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:38,925 INFO L85 PathProgramCache]: Analyzing trace with hash -687165205, now seen corresponding path program 104 times [2022-03-01 17:45:38,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:38,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711897343] [2022-03-01 17:45:38,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:38,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:39,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:39,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711897343] [2022-03-01 17:45:39,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711897343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:39,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:39,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:39,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230566139] [2022-03-01 17:45:39,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:39,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:39,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:39,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:39,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:39,144 INFO L87 Difference]: Start difference. First operand 5796 states and 20171 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:40,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:40,219 INFO L93 Difference]: Finished difference Result 6498 states and 22498 transitions. [2022-03-01 17:45:40,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 17:45:40,219 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:40,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:40,233 INFO L225 Difference]: With dead ends: 6498 [2022-03-01 17:45:40,233 INFO L226 Difference]: Without dead ends: 6393 [2022-03-01 17:45:40,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=1334, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 17:45:40,234 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 372 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 2320 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:40,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [372 Valid, 1061 Invalid, 2343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:45:40,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6393 states. [2022-03-01 17:45:40,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6393 to 5812. [2022-03-01 17:45:40,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5812 states, 5811 states have (on average 3.4794355532610566) internal successors, (20219), 5811 states have internal predecessors, (20219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:40,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5812 states to 5812 states and 20219 transitions. [2022-03-01 17:45:40,323 INFO L78 Accepts]: Start accepts. Automaton has 5812 states and 20219 transitions. Word has length 47 [2022-03-01 17:45:40,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:40,323 INFO L470 AbstractCegarLoop]: Abstraction has 5812 states and 20219 transitions. [2022-03-01 17:45:40,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:40,323 INFO L276 IsEmpty]: Start isEmpty. Operand 5812 states and 20219 transitions. [2022-03-01 17:45:40,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:40,332 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:40,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:40,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-01 17:45:40,332 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:40,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:40,332 INFO L85 PathProgramCache]: Analyzing trace with hash 641532215, now seen corresponding path program 105 times [2022-03-01 17:45:40,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:40,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770297685] [2022-03-01 17:45:40,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:40,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:40,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:40,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:40,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770297685] [2022-03-01 17:45:40,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770297685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:40,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:40,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:40,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779358201] [2022-03-01 17:45:40,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:40,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:40,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:40,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:40,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:40,552 INFO L87 Difference]: Start difference. First operand 5812 states and 20219 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:41,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:41,639 INFO L93 Difference]: Finished difference Result 6391 states and 22171 transitions. [2022-03-01 17:45:41,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 17:45:41,640 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:41,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:41,652 INFO L225 Difference]: With dead ends: 6391 [2022-03-01 17:45:41,652 INFO L226 Difference]: Without dead ends: 6118 [2022-03-01 17:45:41,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=1196, Unknown=0, NotChecked=0, Total=1332 [2022-03-01 17:45:41,652 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 302 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 2424 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 2442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:41,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 1133 Invalid, 2442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2424 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:45:41,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6118 states. [2022-03-01 17:45:41,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6118 to 5684. [2022-03-01 17:45:41,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5684 states, 5683 states have (on average 3.4888263241245823) internal successors, (19827), 5683 states have internal predecessors, (19827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:41,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5684 states to 5684 states and 19827 transitions. [2022-03-01 17:45:41,730 INFO L78 Accepts]: Start accepts. Automaton has 5684 states and 19827 transitions. Word has length 47 [2022-03-01 17:45:41,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:41,730 INFO L470 AbstractCegarLoop]: Abstraction has 5684 states and 19827 transitions. [2022-03-01 17:45:41,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:41,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5684 states and 19827 transitions. [2022-03-01 17:45:41,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:41,738 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:41,739 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:41,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-01 17:45:41,739 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:41,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:41,739 INFO L85 PathProgramCache]: Analyzing trace with hash -162376707, now seen corresponding path program 106 times [2022-03-01 17:45:41,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:41,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315201179] [2022-03-01 17:45:41,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:41,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:41,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:41,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:41,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315201179] [2022-03-01 17:45:41,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315201179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:41,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:41,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-01 17:45:41,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789233994] [2022-03-01 17:45:41,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:41,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 17:45:41,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:41,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 17:45:41,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-01 17:45:41,948 INFO L87 Difference]: Start difference. First operand 5684 states and 19827 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:43,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:43,045 INFO L93 Difference]: Finished difference Result 6651 states and 23069 transitions. [2022-03-01 17:45:43,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 17:45:43,045 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:43,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:43,059 INFO L225 Difference]: With dead ends: 6651 [2022-03-01 17:45:43,059 INFO L226 Difference]: Without dead ends: 6514 [2022-03-01 17:45:43,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=1325, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 17:45:43,059 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 354 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:43,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 1176 Invalid, 2396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:45:43,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6514 states. [2022-03-01 17:45:43,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6514 to 5704. [2022-03-01 17:45:43,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 3.488164124145187) internal successors, (19893), 5703 states have internal predecessors, (19893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:43,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 19893 transitions. [2022-03-01 17:45:43,146 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 19893 transitions. Word has length 47 [2022-03-01 17:45:43,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:43,146 INFO L470 AbstractCegarLoop]: Abstraction has 5704 states and 19893 transitions. [2022-03-01 17:45:43,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:43,146 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 19893 transitions. [2022-03-01 17:45:43,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:43,154 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:43,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:43,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-01 17:45:43,155 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:43,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:43,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1355319515, now seen corresponding path program 107 times [2022-03-01 17:45:43,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:43,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491244584] [2022-03-01 17:45:43,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:43,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:43,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:43,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:43,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491244584] [2022-03-01 17:45:43,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491244584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:43,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:43,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:43,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395438930] [2022-03-01 17:45:43,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:43,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:43,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:43,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:43,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:43,371 INFO L87 Difference]: Start difference. First operand 5704 states and 19893 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:44,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:44,626 INFO L93 Difference]: Finished difference Result 6710 states and 23228 transitions. [2022-03-01 17:45:44,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 17:45:44,627 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:44,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:44,641 INFO L225 Difference]: With dead ends: 6710 [2022-03-01 17:45:44,641 INFO L226 Difference]: Without dead ends: 6621 [2022-03-01 17:45:44,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=1547, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 17:45:44,641 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 420 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 2584 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 2612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:44,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [420 Valid, 1227 Invalid, 2612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2584 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:44,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6621 states. [2022-03-01 17:45:44,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6621 to 5768. [2022-03-01 17:45:44,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5767 states have (on average 3.4869082711981965) internal successors, (20109), 5767 states have internal predecessors, (20109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:44,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 20109 transitions. [2022-03-01 17:45:44,729 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 20109 transitions. Word has length 47 [2022-03-01 17:45:44,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:44,729 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 20109 transitions. [2022-03-01 17:45:44,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:44,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 20109 transitions. [2022-03-01 17:45:44,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:44,738 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:44,738 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:44,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-01 17:45:44,738 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:44,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:44,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1789348861, now seen corresponding path program 108 times [2022-03-01 17:45:44,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:44,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403953525] [2022-03-01 17:45:44,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:44,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:44,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:44,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:44,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403953525] [2022-03-01 17:45:44,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403953525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:44,958 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:44,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:44,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194076520] [2022-03-01 17:45:44,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:44,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:44,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:44,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:44,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:44,959 INFO L87 Difference]: Start difference. First operand 5768 states and 20109 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:46,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:46,061 INFO L93 Difference]: Finished difference Result 6603 states and 22901 transitions. [2022-03-01 17:45:46,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 17:45:46,061 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:46,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:46,075 INFO L225 Difference]: With dead ends: 6603 [2022-03-01 17:45:46,075 INFO L226 Difference]: Without dead ends: 6474 [2022-03-01 17:45:46,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=1402, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 17:45:46,075 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 363 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 2416 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 2437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:46,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 1141 Invalid, 2437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2416 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:45:46,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2022-03-01 17:45:46,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 5768. [2022-03-01 17:45:46,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5767 states have (on average 3.4827466620426564) internal successors, (20085), 5767 states have internal predecessors, (20085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:46,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 20085 transitions. [2022-03-01 17:45:46,160 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 20085 transitions. Word has length 47 [2022-03-01 17:45:46,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:46,160 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 20085 transitions. [2022-03-01 17:45:46,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:46,160 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 20085 transitions. [2022-03-01 17:45:46,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:46,168 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:46,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:46,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-01 17:45:46,169 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:46,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:46,169 INFO L85 PathProgramCache]: Analyzing trace with hash -944184949, now seen corresponding path program 109 times [2022-03-01 17:45:46,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:46,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518565380] [2022-03-01 17:45:46,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:46,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:46,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:46,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:46,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518565380] [2022-03-01 17:45:46,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518565380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:46,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:46,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:46,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500429541] [2022-03-01 17:45:46,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:46,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:46,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:46,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:46,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:46,392 INFO L87 Difference]: Start difference. First operand 5768 states and 20085 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:47,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:47,679 INFO L93 Difference]: Finished difference Result 6758 states and 23404 transitions. [2022-03-01 17:45:47,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 17:45:47,679 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:47,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:47,693 INFO L225 Difference]: With dead ends: 6758 [2022-03-01 17:45:47,693 INFO L226 Difference]: Without dead ends: 6669 [2022-03-01 17:45:47,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=189, Invalid=1703, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 17:45:47,693 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 449 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 2595 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 2627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:47,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [449 Valid, 1245 Invalid, 2627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2595 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:47,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6669 states. [2022-03-01 17:45:47,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6669 to 5768. [2022-03-01 17:45:47,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5767 states have (on average 3.4827466620426564) internal successors, (20085), 5767 states have internal predecessors, (20085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:47,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 20085 transitions. [2022-03-01 17:45:47,777 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 20085 transitions. Word has length 47 [2022-03-01 17:45:47,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:47,777 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 20085 transitions. [2022-03-01 17:45:47,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:47,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 20085 transitions. [2022-03-01 17:45:47,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:47,785 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:47,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:47,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-01 17:45:47,785 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:47,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:47,785 INFO L85 PathProgramCache]: Analyzing trace with hash -510155603, now seen corresponding path program 110 times [2022-03-01 17:45:47,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:47,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369321050] [2022-03-01 17:45:47,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:47,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:48,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:48,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:48,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369321050] [2022-03-01 17:45:48,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369321050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:48,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:48,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:48,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257270873] [2022-03-01 17:45:48,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:48,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:48,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:48,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:48,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:48,008 INFO L87 Difference]: Start difference. First operand 5768 states and 20085 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:49,175 INFO L93 Difference]: Finished difference Result 6750 states and 23376 transitions. [2022-03-01 17:45:49,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 17:45:49,176 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:49,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:49,190 INFO L225 Difference]: With dead ends: 6750 [2022-03-01 17:45:49,190 INFO L226 Difference]: Without dead ends: 6645 [2022-03-01 17:45:49,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=1547, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 17:45:49,191 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 429 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 2528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:49,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 1171 Invalid, 2528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:49,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6645 states. [2022-03-01 17:45:49,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6645 to 5784. [2022-03-01 17:45:49,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5783 states have (on average 3.481411032336158) internal successors, (20133), 5783 states have internal predecessors, (20133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:49,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 20133 transitions. [2022-03-01 17:45:49,285 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 20133 transitions. Word has length 47 [2022-03-01 17:45:49,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:49,286 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 20133 transitions. [2022-03-01 17:45:49,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:49,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 20133 transitions. [2022-03-01 17:45:49,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:49,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:49,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:49,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-01 17:45:49,295 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:49,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:49,295 INFO L85 PathProgramCache]: Analyzing trace with hash 762778105, now seen corresponding path program 111 times [2022-03-01 17:45:49,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:49,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806302104] [2022-03-01 17:45:49,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:49,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:49,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:49,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806302104] [2022-03-01 17:45:49,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806302104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:49,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:49,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:49,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429852444] [2022-03-01 17:45:49,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:49,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:49,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:49,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:49,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:49,522 INFO L87 Difference]: Start difference. First operand 5784 states and 20133 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:50,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:50,792 INFO L93 Difference]: Finished difference Result 6659 states and 23097 transitions. [2022-03-01 17:45:50,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 17:45:50,792 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:50,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:50,806 INFO L225 Difference]: With dead ends: 6659 [2022-03-01 17:45:50,806 INFO L226 Difference]: Without dead ends: 6434 [2022-03-01 17:45:50,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=1629, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:45:50,807 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 432 mSDsluCounter, 2202 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 2610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:50,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 1245 Invalid, 2610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:50,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6434 states. [2022-03-01 17:45:50,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6434 to 5704. [2022-03-01 17:45:50,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 3.4853585832018235) internal successors, (19877), 5703 states have internal predecessors, (19877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 19877 transitions. [2022-03-01 17:45:50,896 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 19877 transitions. Word has length 47 [2022-03-01 17:45:50,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:50,897 INFO L470 AbstractCegarLoop]: Abstraction has 5704 states and 19877 transitions. [2022-03-01 17:45:50,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:50,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 19877 transitions. [2022-03-01 17:45:50,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:50,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:50,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:50,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-01 17:45:50,906 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:50,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:50,906 INFO L85 PathProgramCache]: Analyzing trace with hash -680438787, now seen corresponding path program 112 times [2022-03-01 17:45:50,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:50,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225152609] [2022-03-01 17:45:50,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:50,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:51,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:51,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:51,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225152609] [2022-03-01 17:45:51,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225152609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:51,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:51,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:51,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953701203] [2022-03-01 17:45:51,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:51,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:51,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:51,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:51,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:51,150 INFO L87 Difference]: Start difference. First operand 5704 states and 19877 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:52,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:52,381 INFO L93 Difference]: Finished difference Result 6699 states and 23157 transitions. [2022-03-01 17:45:52,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 17:45:52,381 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:52,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:52,395 INFO L225 Difference]: With dead ends: 6699 [2022-03-01 17:45:52,395 INFO L226 Difference]: Without dead ends: 6562 [2022-03-01 17:45:52,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:45:52,395 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 376 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 2624 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 2650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:52,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 1293 Invalid, 2650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2624 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:45:52,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6562 states. [2022-03-01 17:45:52,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6562 to 5710. [2022-03-01 17:45:52,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5710 states, 5709 states have (on average 3.4853739709231037) internal successors, (19898), 5709 states have internal predecessors, (19898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:52,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 19898 transitions. [2022-03-01 17:45:52,477 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 19898 transitions. Word has length 47 [2022-03-01 17:45:52,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:52,477 INFO L470 AbstractCegarLoop]: Abstraction has 5710 states and 19898 transitions. [2022-03-01 17:45:52,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:52,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 19898 transitions. [2022-03-01 17:45:52,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:52,485 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:52,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:52,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-01 17:45:52,485 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:52,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:52,485 INFO L85 PathProgramCache]: Analyzing trace with hash 837257435, now seen corresponding path program 113 times [2022-03-01 17:45:52,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:52,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481720197] [2022-03-01 17:45:52,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:52,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:52,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:52,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:52,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481720197] [2022-03-01 17:45:52,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481720197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:52,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:52,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:52,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971604633] [2022-03-01 17:45:52,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:52,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:52,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:52,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:52,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:52,738 INFO L87 Difference]: Start difference. First operand 5710 states and 19898 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:54,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:54,094 INFO L93 Difference]: Finished difference Result 6849 states and 23579 transitions. [2022-03-01 17:45:54,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 17:45:54,094 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:54,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:54,108 INFO L225 Difference]: With dead ends: 6849 [2022-03-01 17:45:54,108 INFO L226 Difference]: Without dead ends: 6760 [2022-03-01 17:45:54,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=196, Invalid=1784, Unknown=0, NotChecked=0, Total=1980 [2022-03-01 17:45:54,109 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 437 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 2708 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:54,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 1304 Invalid, 2741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2708 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:45:54,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6760 states. [2022-03-01 17:45:54,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6760 to 5710. [2022-03-01 17:45:54,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5710 states, 5709 states have (on average 3.4853739709231037) internal successors, (19898), 5709 states have internal predecessors, (19898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:54,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 19898 transitions. [2022-03-01 17:45:54,204 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 19898 transitions. Word has length 47 [2022-03-01 17:45:54,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:54,204 INFO L470 AbstractCegarLoop]: Abstraction has 5710 states and 19898 transitions. [2022-03-01 17:45:54,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:54,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 19898 transitions. [2022-03-01 17:45:54,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:54,212 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:54,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:54,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-01 17:45:54,213 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:54,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:54,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1271286781, now seen corresponding path program 114 times [2022-03-01 17:45:54,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:54,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336240411] [2022-03-01 17:45:54,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:54,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:54,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:54,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336240411] [2022-03-01 17:45:54,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336240411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:54,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:54,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:54,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71523960] [2022-03-01 17:45:54,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:54,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:54,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:54,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:54,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:54,462 INFO L87 Difference]: Start difference. First operand 5710 states and 19898 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:55,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:55,749 INFO L93 Difference]: Finished difference Result 6742 states and 23252 transitions. [2022-03-01 17:45:55,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 17:45:55,749 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:55,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:55,763 INFO L225 Difference]: With dead ends: 6742 [2022-03-01 17:45:55,763 INFO L226 Difference]: Without dead ends: 6613 [2022-03-01 17:45:55,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=176, Invalid=1630, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:45:55,764 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 388 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 2814 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 2840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:55,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [388 Valid, 1374 Invalid, 2840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2814 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:45:55,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2022-03-01 17:45:55,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 5710. [2022-03-01 17:45:55,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5710 states, 5709 states have (on average 3.484322998773866) internal successors, (19892), 5709 states have internal predecessors, (19892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:55,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 19892 transitions. [2022-03-01 17:45:55,850 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 19892 transitions. Word has length 47 [2022-03-01 17:45:55,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:55,850 INFO L470 AbstractCegarLoop]: Abstraction has 5710 states and 19892 transitions. [2022-03-01 17:45:55,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:55,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 19892 transitions. [2022-03-01 17:45:55,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:55,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:55,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:55,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-01 17:45:55,858 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:55,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:55,859 INFO L85 PathProgramCache]: Analyzing trace with hash -514253669, now seen corresponding path program 115 times [2022-03-01 17:45:55,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:55,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588469804] [2022-03-01 17:45:55,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:55,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:56,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:56,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:56,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588469804] [2022-03-01 17:45:56,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588469804] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:56,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:56,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:45:56,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579288257] [2022-03-01 17:45:56,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:56,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:45:56,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:56,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:45:56,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:45:56,132 INFO L87 Difference]: Start difference. First operand 5710 states and 19892 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:58,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:45:58,390 INFO L93 Difference]: Finished difference Result 8507 states and 29627 transitions. [2022-03-01 17:45:58,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 17:45:58,390 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:45:58,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:45:58,409 INFO L225 Difference]: With dead ends: 8507 [2022-03-01 17:45:58,409 INFO L226 Difference]: Without dead ends: 8370 [2022-03-01 17:45:58,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 831 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=324, Invalid=2982, Unknown=0, NotChecked=0, Total=3306 [2022-03-01 17:45:58,410 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 536 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 4468 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 4537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:45:58,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [536 Valid, 2006 Invalid, 4537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 4468 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:45:58,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8370 states. [2022-03-01 17:45:58,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8370 to 5756. [2022-03-01 17:45:58,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 5755 states have (on average 3.4799304952215464) internal successors, (20027), 5755 states have internal predecessors, (20027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:58,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 20027 transitions. [2022-03-01 17:45:58,522 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 20027 transitions. Word has length 47 [2022-03-01 17:45:58,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:45:58,522 INFO L470 AbstractCegarLoop]: Abstraction has 5756 states and 20027 transitions. [2022-03-01 17:45:58,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:45:58,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 20027 transitions. [2022-03-01 17:45:58,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:45:58,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:45:58,532 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:45:58,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-01 17:45:58,532 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:45:58,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:45:58,532 INFO L85 PathProgramCache]: Analyzing trace with hash -527785091, now seen corresponding path program 116 times [2022-03-01 17:45:58,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:45:58,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351946431] [2022-03-01 17:45:58,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:45:58,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:45:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:45:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:45:58,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:45:58,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351946431] [2022-03-01 17:45:58,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351946431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:45:58,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:45:58,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:45:58,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714620559] [2022-03-01 17:45:58,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:45:58,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:45:58,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:45:58,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:45:58,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:45:58,776 INFO L87 Difference]: Start difference. First operand 5756 states and 20027 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:01,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:01,366 INFO L93 Difference]: Finished difference Result 9839 states and 34481 transitions. [2022-03-01 17:46:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-03-01 17:46:01,367 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:01,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:01,388 INFO L225 Difference]: With dead ends: 9839 [2022-03-01 17:46:01,389 INFO L226 Difference]: Without dead ends: 9750 [2022-03-01 17:46:01,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1053 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=396, Invalid=3636, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 17:46:01,389 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 702 mSDsluCounter, 3674 mSDsCounter, 0 mSdLazyCounter, 4832 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 4930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:01,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [702 Valid, 2265 Invalid, 4930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4832 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-01 17:46:01,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9750 states. [2022-03-01 17:46:01,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9750 to 5760. [2022-03-01 17:46:01,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 5759 states have (on average 3.4789025872547317) internal successors, (20035), 5759 states have internal predecessors, (20035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:01,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 20035 transitions. [2022-03-01 17:46:01,505 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 20035 transitions. Word has length 47 [2022-03-01 17:46:01,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:01,505 INFO L470 AbstractCegarLoop]: Abstraction has 5760 states and 20035 transitions. [2022-03-01 17:46:01,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:01,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 20035 transitions. [2022-03-01 17:46:01,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:01,514 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:01,514 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:01,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-01 17:46:01,514 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:01,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:01,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1378436999, now seen corresponding path program 117 times [2022-03-01 17:46:01,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:01,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313565411] [2022-03-01 17:46:01,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:01,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:01,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:01,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:01,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313565411] [2022-03-01 17:46:01,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313565411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:01,768 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:01,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:01,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621978450] [2022-03-01 17:46:01,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:01,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:01,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:01,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:01,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:01,769 INFO L87 Difference]: Start difference. First operand 5760 states and 20035 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:04,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:04,511 INFO L93 Difference]: Finished difference Result 10426 states and 36871 transitions. [2022-03-01 17:46:04,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-01 17:46:04,512 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:04,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:04,533 INFO L225 Difference]: With dead ends: 10426 [2022-03-01 17:46:04,533 INFO L226 Difference]: Without dead ends: 10319 [2022-03-01 17:46:04,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=419, Invalid=4273, Unknown=0, NotChecked=0, Total=4692 [2022-03-01 17:46:04,533 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 740 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 5007 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 5100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 5007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:04,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [740 Valid, 2494 Invalid, 5100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 5007 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-01 17:46:04,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10319 states. [2022-03-01 17:46:04,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10319 to 5718. [2022-03-01 17:46:04,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5718 states, 5717 states have (on average 3.48259576701067) internal successors, (19910), 5717 states have internal predecessors, (19910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:04,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5718 states to 5718 states and 19910 transitions. [2022-03-01 17:46:04,642 INFO L78 Accepts]: Start accepts. Automaton has 5718 states and 19910 transitions. Word has length 47 [2022-03-01 17:46:04,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:04,642 INFO L470 AbstractCegarLoop]: Abstraction has 5718 states and 19910 transitions. [2022-03-01 17:46:04,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:04,642 INFO L276 IsEmpty]: Start isEmpty. Operand 5718 states and 19910 transitions. [2022-03-01 17:46:04,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:04,651 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:04,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:04,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-01 17:46:04,651 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:04,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:04,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1477803139, now seen corresponding path program 118 times [2022-03-01 17:46:04,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:04,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649116742] [2022-03-01 17:46:04,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:04,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:04,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:04,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:04,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649116742] [2022-03-01 17:46:04,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649116742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:04,885 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:04,885 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:04,885 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331041130] [2022-03-01 17:46:04,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:04,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:04,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:04,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:04,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:04,885 INFO L87 Difference]: Start difference. First operand 5718 states and 19910 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:06,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:06,374 INFO L93 Difference]: Finished difference Result 6910 states and 23771 transitions. [2022-03-01 17:46:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 17:46:06,374 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:06,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:06,388 INFO L225 Difference]: With dead ends: 6910 [2022-03-01 17:46:06,388 INFO L226 Difference]: Without dead ends: 6821 [2022-03-01 17:46:06,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=1951, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 17:46:06,389 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 457 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 2935 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 2969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:06,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 1383 Invalid, 2969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2935 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-01 17:46:06,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6821 states. [2022-03-01 17:46:06,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6821 to 5720. [2022-03-01 17:46:06,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5720 states, 5719 states have (on average 3.4826018534708867) internal successors, (19917), 5719 states have internal predecessors, (19917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:06,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 19917 transitions. [2022-03-01 17:46:06,478 INFO L78 Accepts]: Start accepts. Automaton has 5720 states and 19917 transitions. Word has length 47 [2022-03-01 17:46:06,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:06,478 INFO L470 AbstractCegarLoop]: Abstraction has 5720 states and 19917 transitions. [2022-03-01 17:46:06,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:06,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5720 states and 19917 transitions. [2022-03-01 17:46:06,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:06,487 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:06,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:06,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-01 17:46:06,487 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:06,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:06,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1801464963, now seen corresponding path program 119 times [2022-03-01 17:46:06,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:06,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126292069] [2022-03-01 17:46:06,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:06,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:06,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:06,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:06,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126292069] [2022-03-01 17:46:06,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126292069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:06,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:06,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:06,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756735233] [2022-03-01 17:46:06,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:06,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:06,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:06,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:06,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:06,720 INFO L87 Difference]: Start difference. First operand 5720 states and 19917 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:08,118 INFO L93 Difference]: Finished difference Result 6902 states and 23743 transitions. [2022-03-01 17:46:08,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 17:46:08,118 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:08,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:08,132 INFO L225 Difference]: With dead ends: 6902 [2022-03-01 17:46:08,132 INFO L226 Difference]: Without dead ends: 6797 [2022-03-01 17:46:08,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=1790, Unknown=0, NotChecked=0, Total=1980 [2022-03-01 17:46:08,133 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 438 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 2909 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 2937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:08,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 1382 Invalid, 2937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2909 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:46:08,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6797 states. [2022-03-01 17:46:08,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6797 to 5720. [2022-03-01 17:46:08,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5720 states, 5719 states have (on average 3.482252141982864) internal successors, (19915), 5719 states have internal predecessors, (19915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:08,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 19915 transitions. [2022-03-01 17:46:08,228 INFO L78 Accepts]: Start accepts. Automaton has 5720 states and 19915 transitions. Word has length 47 [2022-03-01 17:46:08,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:08,228 INFO L470 AbstractCegarLoop]: Abstraction has 5720 states and 19915 transitions. [2022-03-01 17:46:08,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:08,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5720 states and 19915 transitions. [2022-03-01 17:46:08,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:08,237 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:08,237 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:08,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-01 17:46:08,237 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:08,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:08,237 INFO L85 PathProgramCache]: Analyzing trace with hash 868735899, now seen corresponding path program 120 times [2022-03-01 17:46:08,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:08,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987760563] [2022-03-01 17:46:08,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:08,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:08,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:08,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:08,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987760563] [2022-03-01 17:46:08,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987760563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:08,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:08,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:08,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213035301] [2022-03-01 17:46:08,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:08,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:08,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:08,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:08,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:08,475 INFO L87 Difference]: Start difference. First operand 5720 states and 19915 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:10,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:10,669 INFO L93 Difference]: Finished difference Result 8513 states and 29532 transitions. [2022-03-01 17:46:10,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-01 17:46:10,669 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:10,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:10,717 INFO L225 Difference]: With dead ends: 8513 [2022-03-01 17:46:10,717 INFO L226 Difference]: Without dead ends: 8424 [2022-03-01 17:46:10,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=315, Invalid=3107, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 17:46:10,718 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 539 mSDsluCounter, 3906 mSDsCounter, 0 mSdLazyCounter, 4479 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 4531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 4479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:10,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 2390 Invalid, 4531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 4479 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:46:10,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8424 states. [2022-03-01 17:46:10,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8424 to 5824. [2022-03-01 17:46:10,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5824 states, 5823 states have (on average 3.477760604499399) internal successors, (20251), 5823 states have internal predecessors, (20251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:10,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5824 states to 5824 states and 20251 transitions. [2022-03-01 17:46:10,810 INFO L78 Accepts]: Start accepts. Automaton has 5824 states and 20251 transitions. Word has length 47 [2022-03-01 17:46:10,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:10,810 INFO L470 AbstractCegarLoop]: Abstraction has 5824 states and 20251 transitions. [2022-03-01 17:46:10,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:10,810 INFO L276 IsEmpty]: Start isEmpty. Operand 5824 states and 20251 transitions. [2022-03-01 17:46:10,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:10,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:10,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:10,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-01 17:46:10,822 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:10,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:10,822 INFO L85 PathProgramCache]: Analyzing trace with hash 93618297, now seen corresponding path program 121 times [2022-03-01 17:46:10,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:10,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819955868] [2022-03-01 17:46:10,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:10,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:11,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:11,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:11,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819955868] [2022-03-01 17:46:11,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819955868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:11,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:11,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:11,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993669712] [2022-03-01 17:46:11,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:11,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:11,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:11,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:11,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:11,057 INFO L87 Difference]: Start difference. First operand 5824 states and 20251 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:12,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:12,772 INFO L93 Difference]: Finished difference Result 7385 states and 25458 transitions. [2022-03-01 17:46:12,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 17:46:12,772 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:12,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:12,788 INFO L225 Difference]: With dead ends: 7385 [2022-03-01 17:46:12,788 INFO L226 Difference]: Without dead ends: 7290 [2022-03-01 17:46:12,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=231, Invalid=2219, Unknown=0, NotChecked=0, Total=2450 [2022-03-01 17:46:12,788 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 454 mSDsluCounter, 3144 mSDsCounter, 0 mSdLazyCounter, 3589 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 3627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:12,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 1740 Invalid, 3627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3589 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-01 17:46:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7290 states. [2022-03-01 17:46:12,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7290 to 5804. [2022-03-01 17:46:12,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5804 states, 5803 states have (on average 3.4821643977253145) internal successors, (20207), 5803 states have internal predecessors, (20207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:12,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5804 states to 5804 states and 20207 transitions. [2022-03-01 17:46:12,883 INFO L78 Accepts]: Start accepts. Automaton has 5804 states and 20207 transitions. Word has length 47 [2022-03-01 17:46:12,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:12,884 INFO L470 AbstractCegarLoop]: Abstraction has 5804 states and 20207 transitions. [2022-03-01 17:46:12,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:12,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5804 states and 20207 transitions. [2022-03-01 17:46:12,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:12,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:12,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:12,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-01 17:46:12,893 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:12,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:12,893 INFO L85 PathProgramCache]: Analyzing trace with hash 392509975, now seen corresponding path program 122 times [2022-03-01 17:46:12,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:12,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937162308] [2022-03-01 17:46:12,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:12,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:13,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:13,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937162308] [2022-03-01 17:46:13,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937162308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:13,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:13,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:13,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896010235] [2022-03-01 17:46:13,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:13,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:13,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:13,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:13,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:13,140 INFO L87 Difference]: Start difference. First operand 5804 states and 20207 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:14,453 INFO L93 Difference]: Finished difference Result 6867 states and 23666 transitions. [2022-03-01 17:46:14,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 17:46:14,453 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:14,467 INFO L225 Difference]: With dead ends: 6867 [2022-03-01 17:46:14,467 INFO L226 Difference]: Without dead ends: 6770 [2022-03-01 17:46:14,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=1636, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:46:14,468 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 390 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 2843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:14,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1343 Invalid, 2843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:46:14,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6770 states. [2022-03-01 17:46:14,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6770 to 5818. [2022-03-01 17:46:14,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5818 states, 5817 states have (on average 3.4784253051401066) internal successors, (20234), 5817 states have internal predecessors, (20234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:14,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 20234 transitions. [2022-03-01 17:46:14,570 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 20234 transitions. Word has length 47 [2022-03-01 17:46:14,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:14,570 INFO L470 AbstractCegarLoop]: Abstraction has 5818 states and 20234 transitions. [2022-03-01 17:46:14,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:14,570 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 20234 transitions. [2022-03-01 17:46:14,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:14,579 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:14,579 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:14,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-01 17:46:14,579 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:14,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:14,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1332910535, now seen corresponding path program 123 times [2022-03-01 17:46:14,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:14,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054922781] [2022-03-01 17:46:14,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:14,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:14,814 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:14,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054922781] [2022-03-01 17:46:14,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054922781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:14,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:14,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:14,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103168467] [2022-03-01 17:46:14,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:14,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:14,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:14,814 INFO L87 Difference]: Start difference. First operand 5818 states and 20234 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:16,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:16,120 INFO L93 Difference]: Finished difference Result 6843 states and 23576 transitions. [2022-03-01 17:46:16,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 17:46:16,120 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:16,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:16,134 INFO L225 Difference]: With dead ends: 6843 [2022-03-01 17:46:16,134 INFO L226 Difference]: Without dead ends: 6738 [2022-03-01 17:46:16,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=1636, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:46:16,134 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 383 mSDsluCounter, 2537 mSDsCounter, 0 mSdLazyCounter, 2831 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 2856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:16,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 1371 Invalid, 2856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2831 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:46:16,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6738 states. [2022-03-01 17:46:16,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6738 to 5804. [2022-03-01 17:46:16,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5804 states, 5803 states have (on average 3.481130449767362) internal successors, (20201), 5803 states have internal predecessors, (20201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:16,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5804 states to 5804 states and 20201 transitions. [2022-03-01 17:46:16,226 INFO L78 Accepts]: Start accepts. Automaton has 5804 states and 20201 transitions. Word has length 47 [2022-03-01 17:46:16,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:16,226 INFO L470 AbstractCegarLoop]: Abstraction has 5804 states and 20201 transitions. [2022-03-01 17:46:16,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:16,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5804 states and 20201 transitions. [2022-03-01 17:46:16,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:16,235 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:16,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:16,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-01 17:46:16,235 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:16,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:16,235 INFO L85 PathProgramCache]: Analyzing trace with hash 986657209, now seen corresponding path program 124 times [2022-03-01 17:46:16,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:16,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514534628] [2022-03-01 17:46:16,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:16,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:16,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:16,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514534628] [2022-03-01 17:46:16,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514534628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:16,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:16,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:16,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877470855] [2022-03-01 17:46:16,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:16,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:16,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:16,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:16,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:16,467 INFO L87 Difference]: Start difference. First operand 5804 states and 20201 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:17,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:17,855 INFO L93 Difference]: Finished difference Result 6770 states and 23436 transitions. [2022-03-01 17:46:17,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 17:46:17,855 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:17,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:17,869 INFO L225 Difference]: With dead ends: 6770 [2022-03-01 17:46:17,869 INFO L226 Difference]: Without dead ends: 6681 [2022-03-01 17:46:17,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=212, Invalid=1950, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 17:46:17,869 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 502 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:17,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 1288 Invalid, 2795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2757 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:46:17,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6681 states. [2022-03-01 17:46:17,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 5808. [2022-03-01 17:46:17,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5808 states, 5807 states have (on average 3.481143447563286) internal successors, (20215), 5807 states have internal predecessors, (20215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:17,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 20215 transitions. [2022-03-01 17:46:17,953 INFO L78 Accepts]: Start accepts. Automaton has 5808 states and 20215 transitions. Word has length 47 [2022-03-01 17:46:17,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:17,953 INFO L470 AbstractCegarLoop]: Abstraction has 5808 states and 20215 transitions. [2022-03-01 17:46:17,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:17,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5808 states and 20215 transitions. [2022-03-01 17:46:17,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:17,961 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:17,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:17,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-01 17:46:17,961 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:17,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:17,961 INFO L85 PathProgramCache]: Analyzing trace with hash 662995385, now seen corresponding path program 125 times [2022-03-01 17:46:17,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:17,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621699713] [2022-03-01 17:46:17,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:17,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:18,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:18,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:18,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621699713] [2022-03-01 17:46:18,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621699713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:18,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:18,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:18,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838282994] [2022-03-01 17:46:18,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:18,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:18,191 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:18,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:18,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:18,192 INFO L87 Difference]: Start difference. First operand 5808 states and 20215 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:19,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:19,476 INFO L93 Difference]: Finished difference Result 6762 states and 23408 transitions. [2022-03-01 17:46:19,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 17:46:19,477 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:19,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:19,491 INFO L225 Difference]: With dead ends: 6762 [2022-03-01 17:46:19,491 INFO L226 Difference]: Without dead ends: 6657 [2022-03-01 17:46:19,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=1780, Unknown=0, NotChecked=0, Total=1980 [2022-03-01 17:46:19,491 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 485 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 2652 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 2686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:19,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 1206 Invalid, 2686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2652 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:46:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6657 states. [2022-03-01 17:46:19,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6657 to 5824. [2022-03-01 17:46:19,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5824 states, 5823 states have (on average 3.47982139790486) internal successors, (20263), 5823 states have internal predecessors, (20263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:19,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5824 states to 5824 states and 20263 transitions. [2022-03-01 17:46:19,621 INFO L78 Accepts]: Start accepts. Automaton has 5824 states and 20263 transitions. Word has length 47 [2022-03-01 17:46:19,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:19,621 INFO L470 AbstractCegarLoop]: Abstraction has 5824 states and 20263 transitions. [2022-03-01 17:46:19,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:19,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5824 states and 20263 transitions. [2022-03-01 17:46:19,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:19,630 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:19,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:19,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-01 17:46:19,630 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:19,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:19,631 INFO L85 PathProgramCache]: Analyzing trace with hash 719106839, now seen corresponding path program 126 times [2022-03-01 17:46:19,631 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:19,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057908358] [2022-03-01 17:46:19,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:19,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:19,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:19,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:19,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057908358] [2022-03-01 17:46:19,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057908358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:19,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:19,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:19,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608157157] [2022-03-01 17:46:19,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:19,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:19,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:19,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:19,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:19,867 INFO L87 Difference]: Start difference. First operand 5824 states and 20263 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:21,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:21,220 INFO L93 Difference]: Finished difference Result 6731 states and 23345 transitions. [2022-03-01 17:46:21,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 17:46:21,221 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:21,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:21,235 INFO L225 Difference]: With dead ends: 6731 [2022-03-01 17:46:21,235 INFO L226 Difference]: Without dead ends: 6570 [2022-03-01 17:46:21,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=222, Invalid=2034, Unknown=0, NotChecked=0, Total=2256 [2022-03-01 17:46:21,236 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 472 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 2701 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:21,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [472 Valid, 1231 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2701 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:46:21,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6570 states. [2022-03-01 17:46:21,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6570 to 5808. [2022-03-01 17:46:21,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5808 states, 5807 states have (on average 3.480454623729981) internal successors, (20211), 5807 states have internal predecessors, (20211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:21,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 20211 transitions. [2022-03-01 17:46:21,323 INFO L78 Accepts]: Start accepts. Automaton has 5808 states and 20211 transitions. Word has length 47 [2022-03-01 17:46:21,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:21,323 INFO L470 AbstractCegarLoop]: Abstraction has 5808 states and 20211 transitions. [2022-03-01 17:46:21,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:21,323 INFO L276 IsEmpty]: Start isEmpty. Operand 5808 states and 20211 transitions. [2022-03-01 17:46:21,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:21,332 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:21,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:21,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-01 17:46:21,332 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:21,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:21,332 INFO L85 PathProgramCache]: Analyzing trace with hash 869165467, now seen corresponding path program 127 times [2022-03-01 17:46:21,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:21,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532467140] [2022-03-01 17:46:21,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:21,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:21,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:21,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:21,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532467140] [2022-03-01 17:46:21,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532467140] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:21,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:21,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:21,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705387459] [2022-03-01 17:46:21,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:21,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:21,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:21,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:21,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:21,581 INFO L87 Difference]: Start difference. First operand 5808 states and 20211 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:22,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:22,941 INFO L93 Difference]: Finished difference Result 6910 states and 23799 transitions. [2022-03-01 17:46:22,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-01 17:46:22,941 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:22,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:22,982 INFO L225 Difference]: With dead ends: 6910 [2022-03-01 17:46:22,982 INFO L226 Difference]: Without dead ends: 6821 [2022-03-01 17:46:22,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=202, Invalid=1868, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 17:46:22,982 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 487 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 2845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:22,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 1293 Invalid, 2845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:46:22,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6821 states. [2022-03-01 17:46:23,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6821 to 5810. [2022-03-01 17:46:23,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5809 states have (on average 3.480461353072818) internal successors, (20218), 5809 states have internal predecessors, (20218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:23,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 20218 transitions. [2022-03-01 17:46:23,061 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 20218 transitions. Word has length 47 [2022-03-01 17:46:23,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:23,062 INFO L470 AbstractCegarLoop]: Abstraction has 5810 states and 20218 transitions. [2022-03-01 17:46:23,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:23,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 20218 transitions. [2022-03-01 17:46:23,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:23,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:23,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:23,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-01 17:46:23,070 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:23,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:23,071 INFO L85 PathProgramCache]: Analyzing trace with hash 545503643, now seen corresponding path program 128 times [2022-03-01 17:46:23,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:23,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576614242] [2022-03-01 17:46:23,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:23,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:23,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:23,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:23,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576614242] [2022-03-01 17:46:23,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576614242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:23,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:23,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:23,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882442393] [2022-03-01 17:46:23,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:23,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:23,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:23,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:23,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:23,315 INFO L87 Difference]: Start difference. First operand 5810 states and 20218 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:24,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:24,568 INFO L93 Difference]: Finished difference Result 6902 states and 23771 transitions. [2022-03-01 17:46:24,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 17:46:24,568 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:24,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:24,582 INFO L225 Difference]: With dead ends: 6902 [2022-03-01 17:46:24,582 INFO L226 Difference]: Without dead ends: 6797 [2022-03-01 17:46:24,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=1785, Unknown=0, NotChecked=0, Total=1980 [2022-03-01 17:46:24,583 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 476 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 2599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:24,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1165 Invalid, 2599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:46:24,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6797 states. [2022-03-01 17:46:24,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6797 to 5810. [2022-03-01 17:46:24,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5809 states have (on average 3.4801170597348943) internal successors, (20216), 5809 states have internal predecessors, (20216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:24,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 20216 transitions. [2022-03-01 17:46:24,671 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 20216 transitions. Word has length 47 [2022-03-01 17:46:24,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:24,671 INFO L470 AbstractCegarLoop]: Abstraction has 5810 states and 20216 transitions. [2022-03-01 17:46:24,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:24,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 20216 transitions. [2022-03-01 17:46:24,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:24,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:24,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:24,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-01 17:46:24,680 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:24,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:24,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1079262791, now seen corresponding path program 129 times [2022-03-01 17:46:24,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:24,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682572716] [2022-03-01 17:46:24,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:24,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:24,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:24,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:24,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682572716] [2022-03-01 17:46:24,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682572716] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:24,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:24,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:24,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319673993] [2022-03-01 17:46:24,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:24,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:24,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:24,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:24,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:24,909 INFO L87 Difference]: Start difference. First operand 5810 states and 20216 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:26,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:26,965 INFO L93 Difference]: Finished difference Result 7949 states and 27657 transitions. [2022-03-01 17:46:26,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 17:46:26,965 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:26,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:26,981 INFO L225 Difference]: With dead ends: 7949 [2022-03-01 17:46:26,981 INFO L226 Difference]: Without dead ends: 7844 [2022-03-01 17:46:26,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=310, Invalid=3112, Unknown=0, NotChecked=0, Total=3422 [2022-03-01 17:46:26,982 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 586 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 3954 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 4012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:26,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [586 Valid, 2141 Invalid, 4012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3954 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-01 17:46:26,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7844 states. [2022-03-01 17:46:27,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7844 to 5756. [2022-03-01 17:46:27,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 5755 states have (on average 3.4802780191138143) internal successors, (20029), 5755 states have internal predecessors, (20029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:27,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 20029 transitions. [2022-03-01 17:46:27,078 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 20029 transitions. Word has length 47 [2022-03-01 17:46:27,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:27,078 INFO L470 AbstractCegarLoop]: Abstraction has 5756 states and 20029 transitions. [2022-03-01 17:46:27,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:27,078 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 20029 transitions. [2022-03-01 17:46:27,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:27,087 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:27,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:27,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-01 17:46:27,087 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:27,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:27,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1854380393, now seen corresponding path program 130 times [2022-03-01 17:46:27,087 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:27,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094025633] [2022-03-01 17:46:27,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:27,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:27,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:27,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:27,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094025633] [2022-03-01 17:46:27,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094025633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:27,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:27,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:27,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683431766] [2022-03-01 17:46:27,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:27,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:27,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:27,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:27,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:27,324 INFO L87 Difference]: Start difference. First operand 5756 states and 20029 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:29,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:29,065 INFO L93 Difference]: Finished difference Result 7705 states and 26697 transitions. [2022-03-01 17:46:29,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-01 17:46:29,066 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:29,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:29,081 INFO L225 Difference]: With dead ends: 7705 [2022-03-01 17:46:29,081 INFO L226 Difference]: Without dead ends: 7610 [2022-03-01 17:46:29,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=2498, Unknown=0, NotChecked=0, Total=2756 [2022-03-01 17:46:29,082 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 529 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 3544 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 3586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:29,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 1850 Invalid, 3586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3544 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-01 17:46:29,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2022-03-01 17:46:29,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 5724. [2022-03-01 17:46:29,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5724 states, 5723 states have (on average 3.482264546566486) internal successors, (19929), 5723 states have internal predecessors, (19929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:29,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5724 states to 5724 states and 19929 transitions. [2022-03-01 17:46:29,202 INFO L78 Accepts]: Start accepts. Automaton has 5724 states and 19929 transitions. Word has length 47 [2022-03-01 17:46:29,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:29,202 INFO L470 AbstractCegarLoop]: Abstraction has 5724 states and 19929 transitions. [2022-03-01 17:46:29,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:29,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5724 states and 19929 transitions. [2022-03-01 17:46:29,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:29,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:29,210 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:29,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-01 17:46:29,211 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:29,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:29,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1555488715, now seen corresponding path program 131 times [2022-03-01 17:46:29,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:29,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195716197] [2022-03-01 17:46:29,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:29,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:29,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:29,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:29,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195716197] [2022-03-01 17:46:29,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195716197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:29,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:29,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:29,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872424040] [2022-03-01 17:46:29,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:29,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:29,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:29,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:29,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:29,440 INFO L87 Difference]: Start difference. First operand 5724 states and 19929 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:30,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:30,714 INFO L93 Difference]: Finished difference Result 6814 states and 23479 transitions. [2022-03-01 17:46:30,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 17:46:30,714 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:30,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:30,729 INFO L225 Difference]: With dead ends: 6814 [2022-03-01 17:46:30,729 INFO L226 Difference]: Without dead ends: 6717 [2022-03-01 17:46:30,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=183, Invalid=1709, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 17:46:30,729 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 452 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 2713 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 2741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:30,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 1220 Invalid, 2741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2713 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:46:30,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6717 states. [2022-03-01 17:46:30,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6717 to 5732. [2022-03-01 17:46:30,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5732 states, 5731 states have (on average 3.480544407607747) internal successors, (19947), 5731 states have internal predecessors, (19947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:30,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5732 states to 5732 states and 19947 transitions. [2022-03-01 17:46:30,819 INFO L78 Accepts]: Start accepts. Automaton has 5732 states and 19947 transitions. Word has length 47 [2022-03-01 17:46:30,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:30,819 INFO L470 AbstractCegarLoop]: Abstraction has 5732 states and 19947 transitions. [2022-03-01 17:46:30,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:30,820 INFO L276 IsEmpty]: Start isEmpty. Operand 5732 states and 19947 transitions. [2022-03-01 17:46:30,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:30,828 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:30,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:30,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-01 17:46:30,829 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:30,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:30,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1014058071, now seen corresponding path program 132 times [2022-03-01 17:46:30,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:30,829 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094775224] [2022-03-01 17:46:30,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:30,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:31,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:31,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:31,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094775224] [2022-03-01 17:46:31,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094775224] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:31,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:31,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:31,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497320625] [2022-03-01 17:46:31,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:31,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:31,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:31,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:31,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:31,065 INFO L87 Difference]: Start difference. First operand 5732 states and 19947 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:32,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:32,337 INFO L93 Difference]: Finished difference Result 6790 states and 23389 transitions. [2022-03-01 17:46:32,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 17:46:32,337 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:32,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:32,387 INFO L225 Difference]: With dead ends: 6790 [2022-03-01 17:46:32,388 INFO L226 Difference]: Without dead ends: 6691 [2022-03-01 17:46:32,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=1633, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 17:46:32,388 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 412 mSDsluCounter, 2356 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:32,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1253 Invalid, 2776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2749 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 17:46:32,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2022-03-01 17:46:32,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 5724. [2022-03-01 17:46:32,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5724 states, 5723 states have (on average 3.481915079503757) internal successors, (19927), 5723 states have internal predecessors, (19927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:32,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5724 states to 5724 states and 19927 transitions. [2022-03-01 17:46:32,468 INFO L78 Accepts]: Start accepts. Automaton has 5724 states and 19927 transitions. Word has length 47 [2022-03-01 17:46:32,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:32,468 INFO L470 AbstractCegarLoop]: Abstraction has 5724 states and 19927 transitions. [2022-03-01 17:46:32,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:32,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5724 states and 19927 transitions. [2022-03-01 17:46:32,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:32,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:32,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:32,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-01 17:46:32,477 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:32,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:32,478 INFO L85 PathProgramCache]: Analyzing trace with hash 2089802635, now seen corresponding path program 133 times [2022-03-01 17:46:32,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:32,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882483907] [2022-03-01 17:46:32,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:32,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:32,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:32,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882483907] [2022-03-01 17:46:32,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882483907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:32,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:32,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:32,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001083570] [2022-03-01 17:46:32,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:32,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:32,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:32,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:32,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:32,723 INFO L87 Difference]: Start difference. First operand 5724 states and 19927 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:33,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:33,961 INFO L93 Difference]: Finished difference Result 6545 states and 22710 transitions. [2022-03-01 17:46:33,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 17:46:33,961 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:33,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:33,974 INFO L225 Difference]: With dead ends: 6545 [2022-03-01 17:46:33,974 INFO L226 Difference]: Without dead ends: 6400 [2022-03-01 17:46:33,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=185, Invalid=1707, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 17:46:33,975 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 410 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 2646 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 2674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:33,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 1213 Invalid, 2674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2646 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:46:33,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2022-03-01 17:46:34,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 5736. [2022-03-01 17:46:34,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5735 states have (on average 3.479860505666957) internal successors, (19957), 5735 states have internal predecessors, (19957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:34,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 19957 transitions. [2022-03-01 17:46:34,058 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 19957 transitions. Word has length 47 [2022-03-01 17:46:34,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:34,058 INFO L470 AbstractCegarLoop]: Abstraction has 5736 states and 19957 transitions. [2022-03-01 17:46:34,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:34,058 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 19957 transitions. [2022-03-01 17:46:34,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:34,066 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:34,066 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:34,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-01 17:46:34,067 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:34,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:34,067 INFO L85 PathProgramCache]: Analyzing trace with hash 146349929, now seen corresponding path program 134 times [2022-03-01 17:46:34,067 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:34,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119254724] [2022-03-01 17:46:34,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:34,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:34,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:34,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:34,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119254724] [2022-03-01 17:46:34,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119254724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:34,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:34,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:34,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932787399] [2022-03-01 17:46:34,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:34,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:34,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:34,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:34,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:34,298 INFO L87 Difference]: Start difference. First operand 5736 states and 19957 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:35,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:35,536 INFO L93 Difference]: Finished difference Result 6665 states and 23013 transitions. [2022-03-01 17:46:35,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 17:46:35,536 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:35,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:35,550 INFO L225 Difference]: With dead ends: 6665 [2022-03-01 17:46:35,550 INFO L226 Difference]: Without dead ends: 6568 [2022-03-01 17:46:35,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=1555, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 17:46:35,550 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 407 mSDsluCounter, 2328 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 2706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:35,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1235 Invalid, 2706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:46:35,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6568 states. [2022-03-01 17:46:35,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6568 to 5742. [2022-03-01 17:46:35,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5742 states, 5741 states have (on average 3.4788364396446614) internal successors, (19972), 5741 states have internal predecessors, (19972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:35,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5742 states to 5742 states and 19972 transitions. [2022-03-01 17:46:35,636 INFO L78 Accepts]: Start accepts. Automaton has 5742 states and 19972 transitions. Word has length 47 [2022-03-01 17:46:35,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:35,636 INFO L470 AbstractCegarLoop]: Abstraction has 5742 states and 19972 transitions. [2022-03-01 17:46:35,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:35,636 INFO L276 IsEmpty]: Start isEmpty. Operand 5742 states and 19972 transitions. [2022-03-01 17:46:35,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:35,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:35,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:35,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-01 17:46:35,645 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:35,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1579070581, now seen corresponding path program 135 times [2022-03-01 17:46:35,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:35,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036690875] [2022-03-01 17:46:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:35,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:35,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:35,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:35,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036690875] [2022-03-01 17:46:35,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036690875] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:35,882 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:35,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:46:35,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724543080] [2022-03-01 17:46:35,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:35,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:46:35,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:35,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:46:35,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:46:35,882 INFO L87 Difference]: Start difference. First operand 5742 states and 19972 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:37,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:37,105 INFO L93 Difference]: Finished difference Result 6566 states and 22708 transitions. [2022-03-01 17:46:37,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 17:46:37,105 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:37,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:37,119 INFO L225 Difference]: With dead ends: 6566 [2022-03-01 17:46:37,119 INFO L226 Difference]: Without dead ends: 6437 [2022-03-01 17:46:37,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=1482, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:46:37,119 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 361 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 2680 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 2704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:37,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 1251 Invalid, 2704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2680 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:46:37,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6437 states. [2022-03-01 17:46:37,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6437 to 5704. [2022-03-01 17:46:37,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 3.4864106610555847) internal successors, (19883), 5703 states have internal predecessors, (19883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:37,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 19883 transitions. [2022-03-01 17:46:37,206 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 19883 transitions. Word has length 47 [2022-03-01 17:46:37,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:37,206 INFO L470 AbstractCegarLoop]: Abstraction has 5704 states and 19883 transitions. [2022-03-01 17:46:37,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 19883 transitions. [2022-03-01 17:46:37,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:37,215 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:37,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:37,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-01 17:46:37,215 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:37,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:37,215 INFO L85 PathProgramCache]: Analyzing trace with hash 252406523, now seen corresponding path program 136 times [2022-03-01 17:46:37,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:37,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243874516] [2022-03-01 17:46:37,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:37,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:37,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:37,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243874516] [2022-03-01 17:46:37,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243874516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:37,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:37,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-01 17:46:37,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040200200] [2022-03-01 17:46:37,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:37,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 17:46:37,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:37,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 17:46:37,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-01 17:46:37,424 INFO L87 Difference]: Start difference. First operand 5704 states and 19883 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:38,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:38,480 INFO L93 Difference]: Finished difference Result 6483 states and 22479 transitions. [2022-03-01 17:46:38,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 17:46:38,480 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:38,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:38,493 INFO L225 Difference]: With dead ends: 6483 [2022-03-01 17:46:38,493 INFO L226 Difference]: Without dead ends: 6346 [2022-03-01 17:46:38,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=1255, Unknown=0, NotChecked=0, Total=1406 [2022-03-01 17:46:38,493 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 335 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 2185 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:38,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 1062 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2185 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:46:38,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6346 states. [2022-03-01 17:46:38,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6346 to 5720. [2022-03-01 17:46:38,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5720 states, 5719 states have (on average 3.485049833887043) internal successors, (19931), 5719 states have internal predecessors, (19931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:38,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 19931 transitions. [2022-03-01 17:46:38,570 INFO L78 Accepts]: Start accepts. Automaton has 5720 states and 19931 transitions. Word has length 47 [2022-03-01 17:46:38,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:38,570 INFO L470 AbstractCegarLoop]: Abstraction has 5720 states and 19931 transitions. [2022-03-01 17:46:38,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:38,570 INFO L276 IsEmpty]: Start isEmpty. Operand 5720 states and 19931 transitions. [2022-03-01 17:46:38,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:38,578 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:38,578 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:38,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-01 17:46:38,578 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:38,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:38,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1770102745, now seen corresponding path program 137 times [2022-03-01 17:46:38,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:38,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172624126] [2022-03-01 17:46:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:38,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:38,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:38,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:38,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172624126] [2022-03-01 17:46:38,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172624126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:38,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:38,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:46:38,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092051763] [2022-03-01 17:46:38,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:38,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:46:38,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:38,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:46:38,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:46:38,800 INFO L87 Difference]: Start difference. First operand 5720 states and 19931 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:39,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:39,968 INFO L93 Difference]: Finished difference Result 6542 states and 22638 transitions. [2022-03-01 17:46:39,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 17:46:39,968 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:39,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:39,982 INFO L225 Difference]: With dead ends: 6542 [2022-03-01 17:46:39,982 INFO L226 Difference]: Without dead ends: 6453 [2022-03-01 17:46:39,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=1473, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:46:39,982 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 401 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:39,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 1112 Invalid, 2410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:46:39,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6453 states. [2022-03-01 17:46:40,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6453 to 5784. [2022-03-01 17:46:40,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5783 states have (on average 3.483831921148193) internal successors, (20147), 5783 states have internal predecessors, (20147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:40,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 20147 transitions. [2022-03-01 17:46:40,068 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 20147 transitions. Word has length 47 [2022-03-01 17:46:40,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:40,068 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 20147 transitions. [2022-03-01 17:46:40,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:40,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 20147 transitions. [2022-03-01 17:46:40,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:40,076 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:40,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:40,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-01 17:46:40,077 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:40,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:40,077 INFO L85 PathProgramCache]: Analyzing trace with hash -2090835205, now seen corresponding path program 138 times [2022-03-01 17:46:40,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:40,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033101342] [2022-03-01 17:46:40,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:40,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:40,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:40,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033101342] [2022-03-01 17:46:40,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033101342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:40,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:40,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:46:40,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690966853] [2022-03-01 17:46:40,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:40,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:46:40,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:40,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:46:40,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:46:40,297 INFO L87 Difference]: Start difference. First operand 5784 states and 20147 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:41,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:41,398 INFO L93 Difference]: Finished difference Result 6435 states and 22311 transitions. [2022-03-01 17:46:41,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 17:46:41,398 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:41,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:41,413 INFO L225 Difference]: With dead ends: 6435 [2022-03-01 17:46:41,413 INFO L226 Difference]: Without dead ends: 6306 [2022-03-01 17:46:41,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=150, Invalid=1332, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 17:46:41,414 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 337 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 2370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:41,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 1094 Invalid, 2370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2350 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:46:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6306 states. [2022-03-01 17:46:41,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6306 to 5784. [2022-03-01 17:46:41,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5783 states have (on average 3.4796818260418467) internal successors, (20123), 5783 states have internal predecessors, (20123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:41,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 20123 transitions. [2022-03-01 17:46:41,497 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 20123 transitions. Word has length 47 [2022-03-01 17:46:41,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:41,497 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 20123 transitions. [2022-03-01 17:46:41,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:41,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 20123 transitions. [2022-03-01 17:46:41,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:41,505 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:41,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:41,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-01 17:46:41,506 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:41,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:41,506 INFO L85 PathProgramCache]: Analyzing trace with hash -529401719, now seen corresponding path program 139 times [2022-03-01 17:46:41,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:41,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767458780] [2022-03-01 17:46:41,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:41,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:41,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:41,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767458780] [2022-03-01 17:46:41,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767458780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:41,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:41,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:46:41,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003026662] [2022-03-01 17:46:41,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:41,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:46:41,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:41,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:46:41,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:46:41,722 INFO L87 Difference]: Start difference. First operand 5784 states and 20123 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:42,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:42,913 INFO L93 Difference]: Finished difference Result 6494 states and 22478 transitions. [2022-03-01 17:46:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 17:46:42,913 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:42,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:42,926 INFO L225 Difference]: With dead ends: 6494 [2022-03-01 17:46:42,926 INFO L226 Difference]: Without dead ends: 6405 [2022-03-01 17:46:42,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=1472, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 17:46:42,927 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 410 mSDsluCounter, 2107 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 2497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:42,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 1163 Invalid, 2497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:46:42,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2022-03-01 17:46:42,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 5784. [2022-03-01 17:46:43,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5783 states have (on average 3.4796818260418467) internal successors, (20123), 5783 states have internal predecessors, (20123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:43,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 20123 transitions. [2022-03-01 17:46:43,017 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 20123 transitions. Word has length 47 [2022-03-01 17:46:43,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:43,017 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 20123 transitions. [2022-03-01 17:46:43,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 20123 transitions. [2022-03-01 17:46:43,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:43,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:43,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:43,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-01 17:46:43,027 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:43,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:43,027 INFO L85 PathProgramCache]: Analyzing trace with hash -95372373, now seen corresponding path program 140 times [2022-03-01 17:46:43,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:43,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406483676] [2022-03-01 17:46:43,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:43,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:43,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:43,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406483676] [2022-03-01 17:46:43,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406483676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:43,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:43,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:46:43,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365700728] [2022-03-01 17:46:43,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:43,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:46:43,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:43,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:46:43,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:46:43,249 INFO L87 Difference]: Start difference. First operand 5784 states and 20123 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:44,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:44,375 INFO L93 Difference]: Finished difference Result 6486 states and 22450 transitions. [2022-03-01 17:46:44,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 17:46:44,375 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:44,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:44,388 INFO L225 Difference]: With dead ends: 6486 [2022-03-01 17:46:44,388 INFO L226 Difference]: Without dead ends: 6381 [2022-03-01 17:46:44,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=154, Invalid=1328, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 17:46:44,389 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 390 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:44,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 1089 Invalid, 2392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 17:46:44,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6381 states. [2022-03-01 17:46:44,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6381 to 5800. [2022-03-01 17:46:44,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5800 states, 5799 states have (on average 3.4783583376444214) internal successors, (20171), 5799 states have internal predecessors, (20171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:44,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5800 states to 5800 states and 20171 transitions. [2022-03-01 17:46:44,474 INFO L78 Accepts]: Start accepts. Automaton has 5800 states and 20171 transitions. Word has length 47 [2022-03-01 17:46:44,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:44,475 INFO L470 AbstractCegarLoop]: Abstraction has 5800 states and 20171 transitions. [2022-03-01 17:46:44,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:44,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5800 states and 20171 transitions. [2022-03-01 17:46:44,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:44,483 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:44,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:44,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-01 17:46:44,483 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:44,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:44,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1177561335, now seen corresponding path program 141 times [2022-03-01 17:46:44,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:44,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794684782] [2022-03-01 17:46:44,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:44,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:44,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:44,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:44,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794684782] [2022-03-01 17:46:44,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794684782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:44,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:44,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:46:44,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093909523] [2022-03-01 17:46:44,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:44,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:46:44,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:44,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:46:44,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:46:44,708 INFO L87 Difference]: Start difference. First operand 5800 states and 20171 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:45,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:45,829 INFO L93 Difference]: Finished difference Result 6379 states and 22123 transitions. [2022-03-01 17:46:45,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-01 17:46:45,829 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:45,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:45,841 INFO L225 Difference]: With dead ends: 6379 [2022-03-01 17:46:45,842 INFO L226 Difference]: Without dead ends: 6110 [2022-03-01 17:46:45,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=1190, Unknown=0, NotChecked=0, Total=1332 [2022-03-01 17:46:45,842 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 329 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 2361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:45,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 1095 Invalid, 2361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 17:46:45,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6110 states. [2022-03-01 17:46:45,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6110 to 5676. [2022-03-01 17:46:45,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5676 states, 5675 states have (on average 3.490925110132159) internal successors, (19811), 5675 states have internal predecessors, (19811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:45,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5676 states to 5676 states and 19811 transitions. [2022-03-01 17:46:45,923 INFO L78 Accepts]: Start accepts. Automaton has 5676 states and 19811 transitions. Word has length 47 [2022-03-01 17:46:45,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:45,923 INFO L470 AbstractCegarLoop]: Abstraction has 5676 states and 19811 transitions. [2022-03-01 17:46:45,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:45,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5676 states and 19811 transitions. [2022-03-01 17:46:45,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:45,933 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:45,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:45,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-01 17:46:45,933 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:45,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:45,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1450016701, now seen corresponding path program 142 times [2022-03-01 17:46:45,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:45,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164474085] [2022-03-01 17:46:45,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:45,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:46,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:46,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:46,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164474085] [2022-03-01 17:46:46,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164474085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:46,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:46,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:46:46,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332260565] [2022-03-01 17:46:46,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:46,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:46:46,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:46,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:46:46,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:46:46,163 INFO L87 Difference]: Start difference. First operand 5676 states and 19811 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:48,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:48,913 INFO L93 Difference]: Finished difference Result 9641 states and 33896 transitions. [2022-03-01 17:46:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-01 17:46:48,914 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:48,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:48,934 INFO L225 Difference]: With dead ends: 9641 [2022-03-01 17:46:48,934 INFO L226 Difference]: Without dead ends: 9414 [2022-03-01 17:46:48,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1415 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=474, Invalid=4496, Unknown=0, NotChecked=0, Total=4970 [2022-03-01 17:46:48,934 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 722 mSDsluCounter, 3995 mSDsCounter, 0 mSdLazyCounter, 4981 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 5063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 4981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:48,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [722 Valid, 2689 Invalid, 5063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 4981 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-01 17:46:48,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9414 states. [2022-03-01 17:46:49,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9414 to 5851. [2022-03-01 17:46:49,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5851 states, 5850 states have (on average 3.4905982905982906) internal successors, (20420), 5850 states have internal predecessors, (20420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:49,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5851 states to 5851 states and 20420 transitions. [2022-03-01 17:46:49,042 INFO L78 Accepts]: Start accepts. Automaton has 5851 states and 20420 transitions. Word has length 47 [2022-03-01 17:46:49,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:49,042 INFO L470 AbstractCegarLoop]: Abstraction has 5851 states and 20420 transitions. [2022-03-01 17:46:49,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:49,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5851 states and 20420 transitions. [2022-03-01 17:46:49,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:49,050 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:49,050 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:49,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-01 17:46:49,050 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:49,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:49,051 INFO L85 PathProgramCache]: Analyzing trace with hash 99268097, now seen corresponding path program 143 times [2022-03-01 17:46:49,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:49,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753183619] [2022-03-01 17:46:49,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:49,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:49,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:49,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:49,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753183619] [2022-03-01 17:46:49,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753183619] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:49,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:49,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:46:49,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764134892] [2022-03-01 17:46:49,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:49,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:46:49,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:49,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:46:49,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:46:49,265 INFO L87 Difference]: Start difference. First operand 5851 states and 20420 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:52,848 INFO L93 Difference]: Finished difference Result 11528 states and 40542 transitions. [2022-03-01 17:46:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-01 17:46:52,848 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:52,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:52,873 INFO L225 Difference]: With dead ends: 11528 [2022-03-01 17:46:52,873 INFO L226 Difference]: Without dead ends: 11339 [2022-03-01 17:46:52,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2835 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=764, Invalid=7792, Unknown=0, NotChecked=0, Total=8556 [2022-03-01 17:46:52,874 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 939 mSDsluCounter, 4078 mSDsCounter, 0 mSdLazyCounter, 5244 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 5431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 5244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:52,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [939 Valid, 2664 Invalid, 5431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 5244 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:46:52,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11339 states. [2022-03-01 17:46:52,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11339 to 6216. [2022-03-01 17:46:52,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6216 states, 6215 states have (on average 3.4989541432019307) internal successors, (21746), 6215 states have internal predecessors, (21746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:53,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6216 states to 6216 states and 21746 transitions. [2022-03-01 17:46:53,004 INFO L78 Accepts]: Start accepts. Automaton has 6216 states and 21746 transitions. Word has length 47 [2022-03-01 17:46:53,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:53,004 INFO L470 AbstractCegarLoop]: Abstraction has 6216 states and 21746 transitions. [2022-03-01 17:46:53,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:53,005 INFO L276 IsEmpty]: Start isEmpty. Operand 6216 states and 21746 transitions. [2022-03-01 17:46:53,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:53,014 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:53,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:53,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-01 17:46:53,015 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:53,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:53,015 INFO L85 PathProgramCache]: Analyzing trace with hash -751383811, now seen corresponding path program 144 times [2022-03-01 17:46:53,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:53,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268773603] [2022-03-01 17:46:53,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:53,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:53,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:53,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:53,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268773603] [2022-03-01 17:46:53,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268773603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:53,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:53,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:46:53,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070152452] [2022-03-01 17:46:53,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:53,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:46:53,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:53,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:46:53,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:46:53,240 INFO L87 Difference]: Start difference. First operand 6216 states and 21746 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:57,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:46:57,357 INFO L93 Difference]: Finished difference Result 13233 states and 46883 transitions. [2022-03-01 17:46:57,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-03-01 17:46:57,357 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:46:57,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:46:57,387 INFO L225 Difference]: With dead ends: 13233 [2022-03-01 17:46:57,387 INFO L226 Difference]: Without dead ends: 13030 [2022-03-01 17:46:57,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4235 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1007, Invalid=10983, Unknown=0, NotChecked=0, Total=11990 [2022-03-01 17:46:57,388 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 921 mSDsluCounter, 4554 mSDsCounter, 0 mSdLazyCounter, 5826 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 5977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 5826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:46:57,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [921 Valid, 3151 Invalid, 5977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 5826 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-01 17:46:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13030 states. [2022-03-01 17:46:57,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13030 to 6600. [2022-03-01 17:46:57,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6600 states, 6599 states have (on average 3.507804212759509) internal successors, (23148), 6599 states have internal predecessors, (23148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:57,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6600 states to 6600 states and 23148 transitions. [2022-03-01 17:46:57,527 INFO L78 Accepts]: Start accepts. Automaton has 6600 states and 23148 transitions. Word has length 47 [2022-03-01 17:46:57,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:46:57,527 INFO L470 AbstractCegarLoop]: Abstraction has 6600 states and 23148 transitions. [2022-03-01 17:46:57,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:46:57,527 INFO L276 IsEmpty]: Start isEmpty. Operand 6600 states and 23148 transitions. [2022-03-01 17:46:57,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:46:57,537 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:46:57,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:46:57,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-01 17:46:57,537 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:46:57,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:46:57,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1424423741, now seen corresponding path program 145 times [2022-03-01 17:46:57,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:46:57,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003304587] [2022-03-01 17:46:57,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:46:57,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:46:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:46:57,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:46:57,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:46:57,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003304587] [2022-03-01 17:46:57,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003304587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:46:57,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:46:57,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-01 17:46:57,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351172689] [2022-03-01 17:46:57,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:46:57,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 17:46:57,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:46:57,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 17:46:57,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-01 17:46:57,746 INFO L87 Difference]: Start difference. First operand 6600 states and 23148 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:00,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:00,671 INFO L93 Difference]: Finished difference Result 11080 states and 38723 transitions. [2022-03-01 17:47:00,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-03-01 17:47:00,672 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:00,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:00,694 INFO L225 Difference]: With dead ends: 11080 [2022-03-01 17:47:00,694 INFO L226 Difference]: Without dead ends: 10843 [2022-03-01 17:47:00,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2084 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=605, Invalid=5875, Unknown=0, NotChecked=0, Total=6480 [2022-03-01 17:47:00,695 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 797 mSDsluCounter, 3364 mSDsCounter, 0 mSdLazyCounter, 4517 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 4642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 4517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:00,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [797 Valid, 2239 Invalid, 4642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 4517 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-01 17:47:00,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10843 states. [2022-03-01 17:47:00,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10843 to 7034. [2022-03-01 17:47:00,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7034 states, 7033 states have (on average 3.5108772927626903) internal successors, (24692), 7033 states have internal predecessors, (24692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:00,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7034 states to 7034 states and 24692 transitions. [2022-03-01 17:47:00,830 INFO L78 Accepts]: Start accepts. Automaton has 7034 states and 24692 transitions. Word has length 47 [2022-03-01 17:47:00,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:00,830 INFO L470 AbstractCegarLoop]: Abstraction has 7034 states and 24692 transitions. [2022-03-01 17:47:00,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:00,830 INFO L276 IsEmpty]: Start isEmpty. Operand 7034 states and 24692 transitions. [2022-03-01 17:47:00,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:00,841 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:00,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:00,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-01 17:47:00,842 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:00,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:00,842 INFO L85 PathProgramCache]: Analyzing trace with hash -554450721, now seen corresponding path program 146 times [2022-03-01 17:47:00,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:00,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392062608] [2022-03-01 17:47:00,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:00,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:01,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:01,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:01,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392062608] [2022-03-01 17:47:01,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392062608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:01,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:01,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:47:01,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38482542] [2022-03-01 17:47:01,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:01,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:47:01,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:01,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:47:01,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:47:01,063 INFO L87 Difference]: Start difference. First operand 7034 states and 24692 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:04,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:04,665 INFO L93 Difference]: Finished difference Result 12694 states and 44788 transitions. [2022-03-01 17:47:04,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-01 17:47:04,665 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:04,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:04,693 INFO L225 Difference]: With dead ends: 12694 [2022-03-01 17:47:04,693 INFO L226 Difference]: Without dead ends: 12457 [2022-03-01 17:47:04,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3072 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=790, Invalid=8330, Unknown=0, NotChecked=0, Total=9120 [2022-03-01 17:47:04,694 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 947 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 5067 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 5274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 5067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:04,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 2558 Invalid, 5274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 5067 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:47:04,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12457 states. [2022-03-01 17:47:04,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12457 to 6946. [2022-03-01 17:47:04,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6946 states, 6945 states have (on average 3.5128869690424764) internal successors, (24397), 6945 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) [2022-03-01 17:47:04,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6946 states to 6946 states and 24397 transitions. [2022-03-01 17:47:04,841 INFO L78 Accepts]: Start accepts. Automaton has 6946 states and 24397 transitions. Word has length 47 [2022-03-01 17:47:04,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:04,841 INFO L470 AbstractCegarLoop]: Abstraction has 6946 states and 24397 transitions. [2022-03-01 17:47:04,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:04,842 INFO L276 IsEmpty]: Start isEmpty. Operand 6946 states and 24397 transitions. [2022-03-01 17:47:04,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:04,854 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:04,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:04,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-01 17:47:04,855 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:04,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:04,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1405102629, now seen corresponding path program 147 times [2022-03-01 17:47:04,855 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:04,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559670343] [2022-03-01 17:47:04,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:04,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:05,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:05,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559670343] [2022-03-01 17:47:05,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559670343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:05,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:05,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:47:05,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436521600] [2022-03-01 17:47:05,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:05,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:47:05,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:05,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:47:05,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:47:05,073 INFO L87 Difference]: Start difference. First operand 6946 states and 24397 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:08,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:08,701 INFO L93 Difference]: Finished difference Result 12797 states and 45311 transitions. [2022-03-01 17:47:08,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-03-01 17:47:08,701 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:08,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:08,729 INFO L225 Difference]: With dead ends: 12797 [2022-03-01 17:47:08,729 INFO L226 Difference]: Without dead ends: 12486 [2022-03-01 17:47:08,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2845 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=749, Invalid=7807, Unknown=0, NotChecked=0, Total=8556 [2022-03-01 17:47:08,730 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 863 mSDsluCounter, 4116 mSDsCounter, 0 mSdLazyCounter, 5530 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 5723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 5530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:08,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [863 Valid, 2803 Invalid, 5723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 5530 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-01 17:47:08,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12486 states. [2022-03-01 17:47:08,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12486 to 6928. [2022-03-01 17:47:08,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 6927 states have (on average 3.5184062364660025) internal successors, (24372), 6927 states have internal predecessors, (24372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:08,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 24372 transitions. [2022-03-01 17:47:08,867 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 24372 transitions. Word has length 47 [2022-03-01 17:47:08,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:08,867 INFO L470 AbstractCegarLoop]: Abstraction has 6928 states and 24372 transitions. [2022-03-01 17:47:08,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:08,867 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 24372 transitions. [2022-03-01 17:47:08,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:08,877 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:08,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:08,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-01 17:47:08,877 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:08,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:08,878 INFO L85 PathProgramCache]: Analyzing trace with hash 881846205, now seen corresponding path program 148 times [2022-03-01 17:47:08,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:08,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250016626] [2022-03-01 17:47:08,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:08,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:09,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:09,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:09,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250016626] [2022-03-01 17:47:09,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250016626] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:09,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:09,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:47:09,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252560847] [2022-03-01 17:47:09,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:09,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:47:09,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:09,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:47:09,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:47:09,120 INFO L87 Difference]: Start difference. First operand 6928 states and 24372 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:12,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:12,227 INFO L93 Difference]: Finished difference Result 11278 states and 39722 transitions. [2022-03-01 17:47:12,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-01 17:47:12,227 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:12,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:12,250 INFO L225 Difference]: With dead ends: 11278 [2022-03-01 17:47:12,251 INFO L226 Difference]: Without dead ends: 11151 [2022-03-01 17:47:12,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1873 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=561, Invalid=5759, Unknown=0, NotChecked=0, Total=6320 [2022-03-01 17:47:12,252 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 816 mSDsluCounter, 4575 mSDsCounter, 0 mSdLazyCounter, 5478 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 5578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 5478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:12,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [816 Valid, 3076 Invalid, 5578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 5478 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:47:12,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11151 states. [2022-03-01 17:47:12,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11151 to 6942. [2022-03-01 17:47:12,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6942 states, 6941 states have (on average 3.5167843250252124) internal successors, (24410), 6941 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) [2022-03-01 17:47:12,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6942 states to 6942 states and 24410 transitions. [2022-03-01 17:47:12,385 INFO L78 Accepts]: Start accepts. Automaton has 6942 states and 24410 transitions. Word has length 47 [2022-03-01 17:47:12,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:12,385 INFO L470 AbstractCegarLoop]: Abstraction has 6942 states and 24410 transitions. [2022-03-01 17:47:12,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:12,385 INFO L276 IsEmpty]: Start isEmpty. Operand 6942 states and 24410 transitions. [2022-03-01 17:47:12,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:12,396 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:12,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:12,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-01 17:47:12,396 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:12,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:12,396 INFO L85 PathProgramCache]: Analyzing trace with hash -468902399, now seen corresponding path program 149 times [2022-03-01 17:47:12,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:12,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820992585] [2022-03-01 17:47:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:12,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:12,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:12,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:12,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820992585] [2022-03-01 17:47:12,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820992585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:12,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:12,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:47:12,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314401387] [2022-03-01 17:47:12,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:12,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:47:12,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:12,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:47:12,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:47:12,630 INFO L87 Difference]: Start difference. First operand 6942 states and 24410 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:16,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:16,633 INFO L93 Difference]: Finished difference Result 13025 states and 45918 transitions. [2022-03-01 17:47:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-01 17:47:16,633 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:16,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:16,662 INFO L225 Difference]: With dead ends: 13025 [2022-03-01 17:47:16,662 INFO L226 Difference]: Without dead ends: 12836 [2022-03-01 17:47:16,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3465 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=885, Invalid=9417, Unknown=0, NotChecked=0, Total=10302 [2022-03-01 17:47:16,664 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 1035 mSDsluCounter, 4828 mSDsCounter, 0 mSdLazyCounter, 5949 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 6171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 5949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:16,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1035 Valid, 3144 Invalid, 6171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 5949 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-01 17:47:16,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12836 states. [2022-03-01 17:47:16,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12836 to 6956. [2022-03-01 17:47:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6956 states, 6955 states have (on average 3.5168943206326384) internal successors, (24460), 6955 states have internal predecessors, (24460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:16,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6956 states to 6956 states and 24460 transitions. [2022-03-01 17:47:16,853 INFO L78 Accepts]: Start accepts. Automaton has 6956 states and 24460 transitions. Word has length 47 [2022-03-01 17:47:16,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:16,853 INFO L470 AbstractCegarLoop]: Abstraction has 6956 states and 24460 transitions. [2022-03-01 17:47:16,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:16,853 INFO L276 IsEmpty]: Start isEmpty. Operand 6956 states and 24460 transitions. [2022-03-01 17:47:16,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:16,864 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:16,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:16,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-01 17:47:16,864 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:16,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:16,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1319554307, now seen corresponding path program 150 times [2022-03-01 17:47:16,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:16,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192738130] [2022-03-01 17:47:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:16,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:17,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:17,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:17,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192738130] [2022-03-01 17:47:17,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192738130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:17,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:17,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:47:17,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531653823] [2022-03-01 17:47:17,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:17,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:47:17,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:17,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:47:17,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:47:17,099 INFO L87 Difference]: Start difference. First operand 6956 states and 24460 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:21,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:21,688 INFO L93 Difference]: Finished difference Result 14539 states and 51585 transitions. [2022-03-01 17:47:21,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-03-01 17:47:21,688 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:21,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:21,722 INFO L225 Difference]: With dead ends: 14539 [2022-03-01 17:47:21,722 INFO L226 Difference]: Without dead ends: 14336 [2022-03-01 17:47:21,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5197 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1147, Invalid=13373, Unknown=0, NotChecked=0, Total=14520 [2022-03-01 17:47:21,723 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 1043 mSDsluCounter, 5432 mSDsCounter, 0 mSdLazyCounter, 6657 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 3705 SdHoareTripleChecker+Invalid, 6847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 6657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:21,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1043 Valid, 3705 Invalid, 6847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 6657 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-01 17:47:21,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14336 states. [2022-03-01 17:47:21,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14336 to 6972. [2022-03-01 17:47:21,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6972 states, 6971 states have (on average 3.518863864581839) internal successors, (24530), 6971 states have internal predecessors, (24530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6972 states to 6972 states and 24530 transitions. [2022-03-01 17:47:21,875 INFO L78 Accepts]: Start accepts. Automaton has 6972 states and 24530 transitions. Word has length 47 [2022-03-01 17:47:21,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:21,875 INFO L470 AbstractCegarLoop]: Abstraction has 6972 states and 24530 transitions. [2022-03-01 17:47:21,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:21,876 INFO L276 IsEmpty]: Start isEmpty. Operand 6972 states and 24530 transitions. [2022-03-01 17:47:21,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:21,886 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:21,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:21,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-01 17:47:21,887 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:21,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:21,887 INFO L85 PathProgramCache]: Analyzing trace with hash -730368805, now seen corresponding path program 151 times [2022-03-01 17:47:21,887 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:21,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632279552] [2022-03-01 17:47:21,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:21,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:22,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:22,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:22,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632279552] [2022-03-01 17:47:22,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632279552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:22,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:22,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:47:22,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460184320] [2022-03-01 17:47:22,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:22,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:47:22,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:22,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:47:22,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:47:22,139 INFO L87 Difference]: Start difference. First operand 6972 states and 24530 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:24,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:24,772 INFO L93 Difference]: Finished difference Result 10668 states and 37559 transitions. [2022-03-01 17:47:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-01 17:47:24,772 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:24,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:24,795 INFO L225 Difference]: With dead ends: 10668 [2022-03-01 17:47:24,795 INFO L226 Difference]: Without dead ends: 10541 [2022-03-01 17:47:24,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1385 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=454, Invalid=4516, Unknown=0, NotChecked=0, Total=4970 [2022-03-01 17:47:24,795 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 719 mSDsluCounter, 3923 mSDsCounter, 0 mSdLazyCounter, 4710 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 4800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 4710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:24,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 2731 Invalid, 4800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 4710 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-01 17:47:24,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10541 states. [2022-03-01 17:47:24,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10541 to 6994. [2022-03-01 17:47:24,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6994 states, 6993 states have (on average 3.5155155155155153) internal successors, (24584), 6993 states have internal predecessors, (24584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:24,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6994 states to 6994 states and 24584 transitions. [2022-03-01 17:47:24,922 INFO L78 Accepts]: Start accepts. Automaton has 6994 states and 24584 transitions. Word has length 47 [2022-03-01 17:47:24,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:24,922 INFO L470 AbstractCegarLoop]: Abstraction has 6994 states and 24584 transitions. [2022-03-01 17:47:24,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:24,922 INFO L276 IsEmpty]: Start isEmpty. Operand 6994 states and 24584 transitions. [2022-03-01 17:47:24,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:24,933 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:24,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:24,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-01 17:47:24,933 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:24,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:24,934 INFO L85 PathProgramCache]: Analyzing trace with hash -2101566211, now seen corresponding path program 152 times [2022-03-01 17:47:24,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:24,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581217570] [2022-03-01 17:47:24,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:24,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:25,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:25,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:25,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581217570] [2022-03-01 17:47:25,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581217570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:25,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:25,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:47:25,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575235032] [2022-03-01 17:47:25,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:25,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:47:25,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:25,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:47:25,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:47:25,160 INFO L87 Difference]: Start difference. First operand 6994 states and 24584 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:27,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:27,486 INFO L93 Difference]: Finished difference Result 10464 states and 36775 transitions. [2022-03-01 17:47:27,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 17:47:27,486 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:27,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:27,507 INFO L225 Difference]: With dead ends: 10464 [2022-03-01 17:47:27,508 INFO L226 Difference]: Without dead ends: 10364 [2022-03-01 17:47:27,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1140 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=400, Invalid=3760, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 17:47:27,508 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 646 mSDsluCounter, 3691 mSDsCounter, 0 mSdLazyCounter, 4308 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 4388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 4308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:27,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [646 Valid, 2513 Invalid, 4388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 4308 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:47:27,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10364 states. [2022-03-01 17:47:27,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10364 to 7003. [2022-03-01 17:47:27,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7003 states, 7002 states have (on average 3.51413881748072) internal successors, (24606), 7002 states have internal predecessors, (24606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:27,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 24606 transitions. [2022-03-01 17:47:27,662 INFO L78 Accepts]: Start accepts. Automaton has 7003 states and 24606 transitions. Word has length 47 [2022-03-01 17:47:27,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:27,662 INFO L470 AbstractCegarLoop]: Abstraction has 7003 states and 24606 transitions. [2022-03-01 17:47:27,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:27,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7003 states and 24606 transitions. [2022-03-01 17:47:27,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:27,673 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:27,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:27,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-01 17:47:27,673 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:27,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:27,673 INFO L85 PathProgramCache]: Analyzing trace with hash 758333595, now seen corresponding path program 153 times [2022-03-01 17:47:27,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:27,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632775074] [2022-03-01 17:47:27,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:27,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:27,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:27,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:27,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632775074] [2022-03-01 17:47:27,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632775074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:27,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:27,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:47:27,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322652064] [2022-03-01 17:47:27,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:27,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:47:27,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:27,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:47:27,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:47:27,901 INFO L87 Difference]: Start difference. First operand 7003 states and 24606 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:31,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:31,475 INFO L93 Difference]: Finished difference Result 11977 states and 42156 transitions. [2022-03-01 17:47:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-01 17:47:31,475 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:31,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:31,500 INFO L225 Difference]: With dead ends: 11977 [2022-03-01 17:47:31,500 INFO L226 Difference]: Without dead ends: 11823 [2022-03-01 17:47:31,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2795 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=780, Invalid=7962, Unknown=0, NotChecked=0, Total=8742 [2022-03-01 17:47:31,500 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 893 mSDsluCounter, 4803 mSDsCounter, 0 mSdLazyCounter, 5616 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 5775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 5616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:31,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [893 Valid, 3453 Invalid, 5775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 5616 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-01 17:47:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11823 states. [2022-03-01 17:47:31,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11823 to 7194. [2022-03-01 17:47:31,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7194 states, 7193 states have (on average 3.510774363964966) internal successors, (25253), 7193 states have internal predecessors, (25253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:31,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7194 states to 7194 states and 25253 transitions. [2022-03-01 17:47:31,628 INFO L78 Accepts]: Start accepts. Automaton has 7194 states and 25253 transitions. Word has length 47 [2022-03-01 17:47:31,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:31,628 INFO L470 AbstractCegarLoop]: Abstraction has 7194 states and 25253 transitions. [2022-03-01 17:47:31,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:31,629 INFO L276 IsEmpty]: Start isEmpty. Operand 7194 states and 25253 transitions. [2022-03-01 17:47:31,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:31,639 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:31,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:31,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-01 17:47:31,639 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:31,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:31,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1316199937, now seen corresponding path program 154 times [2022-03-01 17:47:31,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:31,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969261809] [2022-03-01 17:47:31,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:31,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:31,878 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:31,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969261809] [2022-03-01 17:47:31,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969261809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:31,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:31,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:47:31,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481540633] [2022-03-01 17:47:31,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:31,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:47:31,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:31,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:47:31,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:47:31,879 INFO L87 Difference]: Start difference. First operand 7194 states and 25253 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:35,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:35,693 INFO L93 Difference]: Finished difference Result 13905 states and 48872 transitions. [2022-03-01 17:47:35,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-03-01 17:47:35,694 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:35,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:35,723 INFO L225 Difference]: With dead ends: 13905 [2022-03-01 17:47:35,724 INFO L226 Difference]: Without dead ends: 13767 [2022-03-01 17:47:35,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3468 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=827, Invalid=9475, Unknown=0, NotChecked=0, Total=10302 [2022-03-01 17:47:35,724 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 1016 mSDsluCounter, 5324 mSDsCounter, 0 mSdLazyCounter, 5963 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 6178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 5963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:35,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 3748 Invalid, 6178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 5963 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-01 17:47:35,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13767 states. [2022-03-01 17:47:35,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13767 to 7314. [2022-03-01 17:47:35,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7314 states, 7313 states have (on average 3.5134691645015725) internal successors, (25694), 7313 states have internal predecessors, (25694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:35,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7314 states to 7314 states and 25694 transitions. [2022-03-01 17:47:35,883 INFO L78 Accepts]: Start accepts. Automaton has 7314 states and 25694 transitions. Word has length 47 [2022-03-01 17:47:35,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:35,884 INFO L470 AbstractCegarLoop]: Abstraction has 7314 states and 25694 transitions. [2022-03-01 17:47:35,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:35,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7314 states and 25694 transitions. [2022-03-01 17:47:35,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:35,897 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:35,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:35,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-01 17:47:35,897 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:35,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:35,897 INFO L85 PathProgramCache]: Analyzing trace with hash 152500989, now seen corresponding path program 155 times [2022-03-01 17:47:35,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:35,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107422517] [2022-03-01 17:47:35,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:35,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:36,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:36,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107422517] [2022-03-01 17:47:36,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107422517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:36,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:36,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:47:36,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396888680] [2022-03-01 17:47:36,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:36,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:47:36,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:36,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:47:36,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:47:36,135 INFO L87 Difference]: Start difference. First operand 7314 states and 25694 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:40,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:40,545 INFO L93 Difference]: Finished difference Result 14970 states and 52737 transitions. [2022-03-01 17:47:40,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-03-01 17:47:40,545 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:40,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:40,577 INFO L225 Difference]: With dead ends: 14970 [2022-03-01 17:47:40,578 INFO L226 Difference]: Without dead ends: 14857 [2022-03-01 17:47:40,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4818 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1072, Invalid=12500, Unknown=0, NotChecked=0, Total=13572 [2022-03-01 17:47:40,579 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 1015 mSDsluCounter, 5343 mSDsCounter, 0 mSdLazyCounter, 6371 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 3783 SdHoareTripleChecker+Invalid, 6597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 6371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:40,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 3783 Invalid, 6597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 6371 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-01 17:47:40,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14857 states. [2022-03-01 17:47:40,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14857 to 7329. [2022-03-01 17:47:40,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7329 states, 7328 states have (on average 3.513100436681223) internal successors, (25744), 7328 states have internal predecessors, (25744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:40,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7329 states to 7329 states and 25744 transitions. [2022-03-01 17:47:40,747 INFO L78 Accepts]: Start accepts. Automaton has 7329 states and 25744 transitions. Word has length 47 [2022-03-01 17:47:40,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:40,747 INFO L470 AbstractCegarLoop]: Abstraction has 7329 states and 25744 transitions. [2022-03-01 17:47:40,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:40,747 INFO L276 IsEmpty]: Start isEmpty. Operand 7329 states and 25744 transitions. [2022-03-01 17:47:40,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:40,759 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:40,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:40,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-01 17:47:40,759 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:40,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:40,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1300529253, now seen corresponding path program 156 times [2022-03-01 17:47:40,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:40,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684279009] [2022-03-01 17:47:40,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:40,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:40,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:40,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:40,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684279009] [2022-03-01 17:47:40,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684279009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:40,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:40,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:47:40,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972929351] [2022-03-01 17:47:40,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:40,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:47:40,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:40,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:47:40,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:47:40,989 INFO L87 Difference]: Start difference. First operand 7329 states and 25744 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:43,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:43,435 INFO L93 Difference]: Finished difference Result 11739 states and 41164 transitions. [2022-03-01 17:47:43,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-01 17:47:43,435 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:43,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:43,460 INFO L225 Difference]: With dead ends: 11739 [2022-03-01 17:47:43,460 INFO L226 Difference]: Without dead ends: 11639 [2022-03-01 17:47:43,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1441 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=471, Invalid=4499, Unknown=0, NotChecked=0, Total=4970 [2022-03-01 17:47:43,461 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 704 mSDsluCounter, 3681 mSDsCounter, 0 mSdLazyCounter, 4223 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 4313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 4223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:43,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 2513 Invalid, 4313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 4223 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:47:43,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11639 states. [2022-03-01 17:47:43,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11639 to 7338. [2022-03-01 17:47:43,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7338 states, 7337 states have (on average 3.511789559765572) internal successors, (25766), 7337 states have internal predecessors, (25766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7338 states to 7338 states and 25766 transitions. [2022-03-01 17:47:43,600 INFO L78 Accepts]: Start accepts. Automaton has 7338 states and 25766 transitions. Word has length 47 [2022-03-01 17:47:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:43,600 INFO L470 AbstractCegarLoop]: Abstraction has 7338 states and 25766 transitions. [2022-03-01 17:47:43,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:43,600 INFO L276 IsEmpty]: Start isEmpty. Operand 7338 states and 25766 transitions. [2022-03-01 17:47:43,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:43,611 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:43,611 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:43,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-01 17:47:43,611 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:43,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:43,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1366591811, now seen corresponding path program 157 times [2022-03-01 17:47:43,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:43,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584935331] [2022-03-01 17:47:43,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:43,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:43,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:43,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:43,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584935331] [2022-03-01 17:47:43,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584935331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:43,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:43,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:47:43,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260128299] [2022-03-01 17:47:43,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:43,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:47:43,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:43,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:47:43,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:47:43,848 INFO L87 Difference]: Start difference. First operand 7338 states and 25766 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:47,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:47,652 INFO L93 Difference]: Finished difference Result 13320 states and 46717 transitions. [2022-03-01 17:47:47,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-01 17:47:47,652 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:47,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:47,681 INFO L225 Difference]: With dead ends: 13320 [2022-03-01 17:47:47,682 INFO L226 Difference]: Without dead ends: 13178 [2022-03-01 17:47:47,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3515 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=887, Invalid=9619, Unknown=0, NotChecked=0, Total=10506 [2022-03-01 17:47:47,683 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 1030 mSDsluCounter, 5116 mSDsCounter, 0 mSdLazyCounter, 5846 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 3686 SdHoareTripleChecker+Invalid, 6032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 5846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:47,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 3686 Invalid, 6032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 5846 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-01 17:47:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13178 states. [2022-03-01 17:47:47,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13178 to 7329. [2022-03-01 17:47:47,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7329 states, 7328 states have (on average 3.5141921397379914) internal successors, (25752), 7328 states have internal predecessors, (25752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7329 states to 7329 states and 25752 transitions. [2022-03-01 17:47:47,835 INFO L78 Accepts]: Start accepts. Automaton has 7329 states and 25752 transitions. Word has length 47 [2022-03-01 17:47:47,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:47,835 INFO L470 AbstractCegarLoop]: Abstraction has 7329 states and 25752 transitions. [2022-03-01 17:47:47,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:47,835 INFO L276 IsEmpty]: Start isEmpty. Operand 7329 states and 25752 transitions. [2022-03-01 17:47:47,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:47,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:47,847 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:47,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-01 17:47:47,847 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:47,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:47,847 INFO L85 PathProgramCache]: Analyzing trace with hash 896094299, now seen corresponding path program 158 times [2022-03-01 17:47:47,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:47,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407058535] [2022-03-01 17:47:47,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:47,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:48,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:48,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:48,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407058535] [2022-03-01 17:47:48,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407058535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:48,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:48,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:47:48,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340710919] [2022-03-01 17:47:48,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:48,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:47:48,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:48,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:47:48,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:47:48,081 INFO L87 Difference]: Start difference. First operand 7329 states and 25752 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:50,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:50,890 INFO L93 Difference]: Finished difference Result 11833 states and 41364 transitions. [2022-03-01 17:47:50,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-03-01 17:47:50,891 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:50,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:50,916 INFO L225 Difference]: With dead ends: 11833 [2022-03-01 17:47:50,916 INFO L226 Difference]: Without dead ends: 11696 [2022-03-01 17:47:50,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1776 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=522, Invalid=5330, Unknown=0, NotChecked=0, Total=5852 [2022-03-01 17:47:50,917 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 811 mSDsluCounter, 3834 mSDsCounter, 0 mSdLazyCounter, 4730 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 4846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 4730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:50,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 2776 Invalid, 4846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 4730 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-01 17:47:50,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11696 states. [2022-03-01 17:47:51,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11696 to 7365. [2022-03-01 17:47:51,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 3.509234111895709) internal successors, (25842), 7364 states have internal predecessors, (25842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:51,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 25842 transitions. [2022-03-01 17:47:51,069 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 25842 transitions. Word has length 47 [2022-03-01 17:47:51,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:51,069 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 25842 transitions. [2022-03-01 17:47:51,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:51,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 25842 transitions. [2022-03-01 17:47:51,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:51,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:51,081 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:51,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-01 17:47:51,081 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:51,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:51,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1764279269, now seen corresponding path program 159 times [2022-03-01 17:47:51,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:51,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288834298] [2022-03-01 17:47:51,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:51,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:51,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:51,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:51,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288834298] [2022-03-01 17:47:51,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288834298] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:51,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:51,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:47:51,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958203431] [2022-03-01 17:47:51,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:51,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:47:51,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:51,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:47:51,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:47:51,320 INFO L87 Difference]: Start difference. First operand 7365 states and 25842 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:54,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:54,743 INFO L93 Difference]: Finished difference Result 12448 states and 43499 transitions. [2022-03-01 17:47:54,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-01 17:47:54,744 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:54,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:54,771 INFO L225 Difference]: With dead ends: 12448 [2022-03-01 17:47:54,772 INFO L226 Difference]: Without dead ends: 12308 [2022-03-01 17:47:54,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2991 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=738, Invalid=8382, Unknown=0, NotChecked=0, Total=9120 [2022-03-01 17:47:54,773 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 975 mSDsluCounter, 4540 mSDsCounter, 0 mSdLazyCounter, 5400 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 3285 SdHoareTripleChecker+Invalid, 5607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 5400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:54,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [975 Valid, 3285 Invalid, 5607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 5400 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-01 17:47:54,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12308 states. [2022-03-01 17:47:54,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12308 to 7347. [2022-03-01 17:47:54,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 3.510890280424721) internal successors, (25791), 7346 states have internal predecessors, (25791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 25791 transitions. [2022-03-01 17:47:54,917 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 25791 transitions. Word has length 47 [2022-03-01 17:47:54,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:54,917 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 25791 transitions. [2022-03-01 17:47:54,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:54,917 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 25791 transitions. [2022-03-01 17:47:54,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:54,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:54,929 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:54,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-01 17:47:54,929 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:54,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:54,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2097663485, now seen corresponding path program 160 times [2022-03-01 17:47:54,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:54,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272541559] [2022-03-01 17:47:54,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:54,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:55,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:55,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:55,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272541559] [2022-03-01 17:47:55,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272541559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:55,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:55,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:47:55,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690924542] [2022-03-01 17:47:55,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:55,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:47:55,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:55,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:47:55,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:47:55,173 INFO L87 Difference]: Start difference. First operand 7347 states and 25791 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:59,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:47:59,212 INFO L93 Difference]: Finished difference Result 13400 states and 47109 transitions. [2022-03-01 17:47:59,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-01 17:47:59,212 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:47:59,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:47:59,243 INFO L225 Difference]: With dead ends: 13400 [2022-03-01 17:47:59,244 INFO L226 Difference]: Without dead ends: 13263 [2022-03-01 17:47:59,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3564 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=862, Invalid=9644, Unknown=0, NotChecked=0, Total=10506 [2022-03-01 17:47:59,245 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 1045 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 5883 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 6130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 5883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:47:59,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1045 Valid, 2992 Invalid, 6130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 5883 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-01 17:47:59,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13263 states. [2022-03-01 17:47:59,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13263 to 7496. [2022-03-01 17:47:59,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 7495 states have (on average 3.5179452968645766) internal successors, (26367), 7495 states have internal predecessors, (26367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:59,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 26367 transitions. [2022-03-01 17:47:59,430 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 26367 transitions. Word has length 47 [2022-03-01 17:47:59,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:47:59,430 INFO L470 AbstractCegarLoop]: Abstraction has 7496 states and 26367 transitions. [2022-03-01 17:47:59,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:47:59,430 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 26367 transitions. [2022-03-01 17:47:59,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:47:59,443 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:47:59,443 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:47:59,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-01 17:47:59,443 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:47:59,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:47:59,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1247011577, now seen corresponding path program 161 times [2022-03-01 17:47:59,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:47:59,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646737989] [2022-03-01 17:47:59,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:47:59,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:47:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:47:59,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:47:59,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:47:59,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646737989] [2022-03-01 17:47:59,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646737989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:47:59,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:47:59,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:47:59,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335575648] [2022-03-01 17:47:59,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:47:59,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:47:59,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:47:59,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:47:59,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:47:59,691 INFO L87 Difference]: Start difference. First operand 7496 states and 26367 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:03,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:03,648 INFO L93 Difference]: Finished difference Result 13625 states and 47957 transitions. [2022-03-01 17:48:03,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-01 17:48:03,648 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:03,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:03,680 INFO L225 Difference]: With dead ends: 13625 [2022-03-01 17:48:03,681 INFO L226 Difference]: Without dead ends: 13365 [2022-03-01 17:48:03,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3313 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=816, Invalid=9084, Unknown=0, NotChecked=0, Total=9900 [2022-03-01 17:48:03,681 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 971 mSDsluCounter, 4518 mSDsCounter, 0 mSdLazyCounter, 5918 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 6145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 5918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:03,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [971 Valid, 3089 Invalid, 6145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 5918 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-01 17:48:03,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13365 states. [2022-03-01 17:48:03,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13365 to 7367. [2022-03-01 17:48:03,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7367 states, 7366 states have (on average 3.5116752647298397) internal successors, (25867), 7366 states have internal predecessors, (25867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:03,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7367 states to 7367 states and 25867 transitions. [2022-03-01 17:48:03,830 INFO L78 Accepts]: Start accepts. Automaton has 7367 states and 25867 transitions. Word has length 47 [2022-03-01 17:48:03,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:03,830 INFO L470 AbstractCegarLoop]: Abstraction has 7367 states and 25867 transitions. [2022-03-01 17:48:03,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:03,831 INFO L276 IsEmpty]: Start isEmpty. Operand 7367 states and 25867 transitions. [2022-03-01 17:48:03,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:03,842 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:03,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:03,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-01 17:48:03,842 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:03,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:03,842 INFO L85 PathProgramCache]: Analyzing trace with hash 157641055, now seen corresponding path program 162 times [2022-03-01 17:48:03,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:03,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739303339] [2022-03-01 17:48:03,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:03,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:04,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:04,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739303339] [2022-03-01 17:48:04,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739303339] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:04,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:04,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:48:04,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938747258] [2022-03-01 17:48:04,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:04,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:48:04,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:04,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:48:04,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:48:04,073 INFO L87 Difference]: Start difference. First operand 7367 states and 25867 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:08,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:08,100 INFO L93 Difference]: Finished difference Result 14353 states and 50433 transitions. [2022-03-01 17:48:08,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-01 17:48:08,100 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:08,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:08,132 INFO L225 Difference]: With dead ends: 14353 [2022-03-01 17:48:08,132 INFO L226 Difference]: Without dead ends: 14231 [2022-03-01 17:48:08,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3800 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=871, Invalid=10259, Unknown=0, NotChecked=0, Total=11130 [2022-03-01 17:48:08,133 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1016 mSDsluCounter, 5456 mSDsCounter, 0 mSdLazyCounter, 6303 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 4003 SdHoareTripleChecker+Invalid, 6524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 6303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:08,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1016 Valid, 4003 Invalid, 6524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 6303 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-01 17:48:08,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14231 states. [2022-03-01 17:48:08,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14231 to 7367. [2022-03-01 17:48:08,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7367 states, 7366 states have (on average 3.5116752647298397) internal successors, (25867), 7366 states have internal predecessors, (25867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:08,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7367 states to 7367 states and 25867 transitions. [2022-03-01 17:48:08,288 INFO L78 Accepts]: Start accepts. Automaton has 7367 states and 25867 transitions. Word has length 47 [2022-03-01 17:48:08,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:08,288 INFO L470 AbstractCegarLoop]: Abstraction has 7367 states and 25867 transitions. [2022-03-01 17:48:08,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:08,288 INFO L276 IsEmpty]: Start isEmpty. Operand 7367 states and 25867 transitions. [2022-03-01 17:48:08,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:08,300 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:08,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:08,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-01 17:48:08,300 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:08,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:08,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1006057893, now seen corresponding path program 163 times [2022-03-01 17:48:08,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:08,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202708994] [2022-03-01 17:48:08,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:08,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:08,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:08,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:08,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202708994] [2022-03-01 17:48:08,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202708994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:08,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:08,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:48:08,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232158606] [2022-03-01 17:48:08,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:08,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:48:08,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:08,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:48:08,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:48:08,552 INFO L87 Difference]: Start difference. First operand 7367 states and 25867 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:12,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:12,905 INFO L93 Difference]: Finished difference Result 14566 states and 51171 transitions. [2022-03-01 17:48:12,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-03-01 17:48:12,905 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:12,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:12,938 INFO L225 Difference]: With dead ends: 14566 [2022-03-01 17:48:12,938 INFO L226 Difference]: Without dead ends: 14451 [2022-03-01 17:48:12,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4334 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=987, Invalid=11445, Unknown=0, NotChecked=0, Total=12432 [2022-03-01 17:48:12,939 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 986 mSDsluCounter, 5356 mSDsCounter, 0 mSdLazyCounter, 6597 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 3853 SdHoareTripleChecker+Invalid, 6810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 6597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:12,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [986 Valid, 3853 Invalid, 6810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 6597 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-01 17:48:12,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14451 states. [2022-03-01 17:48:13,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14451 to 7409. [2022-03-01 17:48:13,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7409 states, 7408 states have (on average 3.511744060475162) internal successors, (26015), 7408 states have internal predecessors, (26015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:13,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7409 states to 7409 states and 26015 transitions. [2022-03-01 17:48:13,113 INFO L78 Accepts]: Start accepts. Automaton has 7409 states and 26015 transitions. Word has length 47 [2022-03-01 17:48:13,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:13,113 INFO L470 AbstractCegarLoop]: Abstraction has 7409 states and 26015 transitions. [2022-03-01 17:48:13,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:13,113 INFO L276 IsEmpty]: Start isEmpty. Operand 7409 states and 26015 transitions. [2022-03-01 17:48:13,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:13,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:13,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:13,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-01 17:48:13,125 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:13,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:13,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1835879161, now seen corresponding path program 164 times [2022-03-01 17:48:13,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:13,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975013201] [2022-03-01 17:48:13,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:13,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:13,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:13,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975013201] [2022-03-01 17:48:13,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975013201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:13,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:13,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:48:13,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631635855] [2022-03-01 17:48:13,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:13,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:48:13,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:13,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:48:13,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:48:13,355 INFO L87 Difference]: Start difference. First operand 7409 states and 26015 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:15,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:15,673 INFO L93 Difference]: Finished difference Result 11320 states and 39731 transitions. [2022-03-01 17:48:15,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-01 17:48:15,673 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:15,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:15,697 INFO L225 Difference]: With dead ends: 11320 [2022-03-01 17:48:15,698 INFO L226 Difference]: Without dead ends: 11220 [2022-03-01 17:48:15,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=438, Invalid=4118, Unknown=0, NotChecked=0, Total=4556 [2022-03-01 17:48:15,698 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 674 mSDsluCounter, 3332 mSDsCounter, 0 mSdLazyCounter, 4009 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 2362 SdHoareTripleChecker+Invalid, 4096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:15,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [674 Valid, 2362 Invalid, 4096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4009 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-01 17:48:15,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11220 states. [2022-03-01 17:48:15,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11220 to 7418. [2022-03-01 17:48:15,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7418 states, 7417 states have (on average 3.5104489685856817) internal successors, (26037), 7417 states have internal predecessors, (26037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:15,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7418 states to 7418 states and 26037 transitions. [2022-03-01 17:48:15,843 INFO L78 Accepts]: Start accepts. Automaton has 7418 states and 26037 transitions. Word has length 47 [2022-03-01 17:48:15,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:15,843 INFO L470 AbstractCegarLoop]: Abstraction has 7418 states and 26037 transitions. [2022-03-01 17:48:15,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:15,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7418 states and 26037 transitions. [2022-03-01 17:48:15,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:15,855 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:15,855 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:15,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-01 17:48:15,856 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:15,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:15,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1769816603, now seen corresponding path program 165 times [2022-03-01 17:48:15,856 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:15,856 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581813361] [2022-03-01 17:48:15,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:15,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:16,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:16,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:16,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581813361] [2022-03-01 17:48:16,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581813361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:16,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:16,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:48:16,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734617059] [2022-03-01 17:48:16,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:16,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:48:16,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:16,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:48:16,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:48:16,092 INFO L87 Difference]: Start difference. First operand 7418 states and 26037 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:19,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:19,686 INFO L93 Difference]: Finished difference Result 12752 states and 44502 transitions. [2022-03-01 17:48:19,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-01 17:48:19,686 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:19,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:19,713 INFO L225 Difference]: With dead ends: 12752 [2022-03-01 17:48:19,713 INFO L226 Difference]: Without dead ends: 12367 [2022-03-01 17:48:19,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2942 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=772, Invalid=8348, Unknown=0, NotChecked=0, Total=9120 [2022-03-01 17:48:19,714 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 952 mSDsluCounter, 4935 mSDsCounter, 0 mSdLazyCounter, 5702 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 5862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 5702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:19,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [952 Valid, 3688 Invalid, 5862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 5702 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-01 17:48:19,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12367 states. [2022-03-01 17:48:19,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12367 to 7533. [2022-03-01 17:48:19,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7533 states, 7532 states have (on average 3.5123473181094) internal successors, (26455), 7532 states have internal predecessors, (26455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:19,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7533 states to 7533 states and 26455 transitions. [2022-03-01 17:48:19,863 INFO L78 Accepts]: Start accepts. Automaton has 7533 states and 26455 transitions. Word has length 47 [2022-03-01 17:48:19,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:19,863 INFO L470 AbstractCegarLoop]: Abstraction has 7533 states and 26455 transitions. [2022-03-01 17:48:19,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:19,863 INFO L276 IsEmpty]: Start isEmpty. Operand 7533 states and 26455 transitions. [2022-03-01 17:48:19,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:19,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:19,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:19,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-01 17:48:19,875 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:19,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:19,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1690028645, now seen corresponding path program 166 times [2022-03-01 17:48:19,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:19,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900133785] [2022-03-01 17:48:19,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:19,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:20,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:20,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900133785] [2022-03-01 17:48:20,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900133785] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:20,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:20,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:48:20,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249871441] [2022-03-01 17:48:20,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:20,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:48:20,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:20,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:48:20,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:48:20,092 INFO L87 Difference]: Start difference. First operand 7533 states and 26455 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:23,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:23,265 INFO L93 Difference]: Finished difference Result 12440 states and 43725 transitions. [2022-03-01 17:48:23,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-01 17:48:23,266 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:23,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:23,292 INFO L225 Difference]: With dead ends: 12440 [2022-03-01 17:48:23,293 INFO L226 Difference]: Without dead ends: 12207 [2022-03-01 17:48:23,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2174 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=617, Invalid=6355, Unknown=0, NotChecked=0, Total=6972 [2022-03-01 17:48:23,294 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 799 mSDsluCounter, 4350 mSDsCounter, 0 mSdLazyCounter, 5272 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 5373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 5272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:23,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [799 Valid, 3066 Invalid, 5373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 5272 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:48:23,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12207 states. [2022-03-01 17:48:23,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12207 to 7643. [2022-03-01 17:48:23,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7643 states, 7642 states have (on average 3.51086103114368) internal successors, (26830), 7642 states have internal predecessors, (26830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:23,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7643 states to 7643 states and 26830 transitions. [2022-03-01 17:48:23,438 INFO L78 Accepts]: Start accepts. Automaton has 7643 states and 26830 transitions. Word has length 47 [2022-03-01 17:48:23,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:23,438 INFO L470 AbstractCegarLoop]: Abstraction has 7643 states and 26830 transitions. [2022-03-01 17:48:23,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:23,439 INFO L276 IsEmpty]: Start isEmpty. Operand 7643 states and 26830 transitions. [2022-03-01 17:48:23,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:23,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:23,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:23,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-01 17:48:23,451 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:23,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1254190047, now seen corresponding path program 167 times [2022-03-01 17:48:23,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:23,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133110819] [2022-03-01 17:48:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:23,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:23,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:23,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:23,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133110819] [2022-03-01 17:48:23,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133110819] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:23,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:23,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:48:23,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631661793] [2022-03-01 17:48:23,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:23,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:48:23,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:23,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:48:23,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:48:23,673 INFO L87 Difference]: Start difference. First operand 7643 states and 26830 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:27,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:27,672 INFO L93 Difference]: Finished difference Result 13721 states and 48302 transitions. [2022-03-01 17:48:27,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-01 17:48:27,673 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:27,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:27,702 INFO L225 Difference]: With dead ends: 13721 [2022-03-01 17:48:27,703 INFO L226 Difference]: Without dead ends: 13526 [2022-03-01 17:48:27,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3788 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=942, Invalid=9978, Unknown=0, NotChecked=0, Total=10920 [2022-03-01 17:48:27,704 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 930 mSDsluCounter, 4431 mSDsCounter, 0 mSdLazyCounter, 5773 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 5942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 5773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:27,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 3079 Invalid, 5942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 5773 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-01 17:48:27,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13526 states. [2022-03-01 17:48:27,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13526 to 7823. [2022-03-01 17:48:27,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7823 states, 7822 states have (on average 3.5175147021222193) internal successors, (27514), 7822 states have internal predecessors, (27514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7823 states to 7823 states and 27514 transitions. [2022-03-01 17:48:27,900 INFO L78 Accepts]: Start accepts. Automaton has 7823 states and 27514 transitions. Word has length 47 [2022-03-01 17:48:27,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:27,900 INFO L470 AbstractCegarLoop]: Abstraction has 7823 states and 27514 transitions. [2022-03-01 17:48:27,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 7823 states and 27514 transitions. [2022-03-01 17:48:27,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:27,913 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:27,913 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:27,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-01 17:48:27,913 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:27,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:27,913 INFO L85 PathProgramCache]: Analyzing trace with hash 403538139, now seen corresponding path program 168 times [2022-03-01 17:48:27,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:27,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298276765] [2022-03-01 17:48:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:27,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:28,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:28,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:28,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298276765] [2022-03-01 17:48:28,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298276765] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:28,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:28,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:48:28,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557105674] [2022-03-01 17:48:28,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:28,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:48:28,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:28,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:48:28,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:48:28,136 INFO L87 Difference]: Start difference. First operand 7823 states and 27514 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:32,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:32,961 INFO L93 Difference]: Finished difference Result 15923 states and 56409 transitions. [2022-03-01 17:48:32,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-01 17:48:32,961 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:32,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:32,999 INFO L225 Difference]: With dead ends: 15923 [2022-03-01 17:48:32,999 INFO L226 Difference]: Without dead ends: 15714 [2022-03-01 17:48:33,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6137 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1257, Invalid=15255, Unknown=0, NotChecked=0, Total=16512 [2022-03-01 17:48:33,000 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 1014 mSDsluCounter, 5165 mSDsCounter, 0 mSdLazyCounter, 6635 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 3700 SdHoareTripleChecker+Invalid, 6802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 6635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:33,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 3700 Invalid, 6802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 6635 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-01 17:48:33,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15714 states. [2022-03-01 17:48:33,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15714 to 7927. [2022-03-01 17:48:33,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7927 states, 7926 states have (on average 3.5170325510976532) internal successors, (27876), 7926 states have internal predecessors, (27876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:33,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7927 states to 7927 states and 27876 transitions. [2022-03-01 17:48:33,171 INFO L78 Accepts]: Start accepts. Automaton has 7927 states and 27876 transitions. Word has length 47 [2022-03-01 17:48:33,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:33,171 INFO L470 AbstractCegarLoop]: Abstraction has 7927 states and 27876 transitions. [2022-03-01 17:48:33,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:33,171 INFO L276 IsEmpty]: Start isEmpty. Operand 7927 states and 27876 transitions. [2022-03-01 17:48:33,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:33,184 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:33,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:33,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-01 17:48:33,184 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:33,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:33,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1715621605, now seen corresponding path program 169 times [2022-03-01 17:48:33,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:33,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789246091] [2022-03-01 17:48:33,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:33,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:33,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:33,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:33,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789246091] [2022-03-01 17:48:33,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789246091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:33,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:33,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-03-01 17:48:33,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219203946] [2022-03-01 17:48:33,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:33,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-01 17:48:33,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:33,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-01 17:48:33,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2022-03-01 17:48:33,401 INFO L87 Difference]: Start difference. First operand 7927 states and 27876 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:36,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:36,430 INFO L93 Difference]: Finished difference Result 11868 states and 41423 transitions. [2022-03-01 17:48:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-01 17:48:36,430 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:36,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:36,456 INFO L225 Difference]: With dead ends: 11868 [2022-03-01 17:48:36,456 INFO L226 Difference]: Without dead ends: 11625 [2022-03-01 17:48:36,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2223 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=626, Invalid=6180, Unknown=0, NotChecked=0, Total=6806 [2022-03-01 17:48:36,457 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 736 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 4831 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 4938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:36,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [736 Valid, 2425 Invalid, 4938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 4831 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-01 17:48:36,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11625 states. [2022-03-01 17:48:36,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11625 to 8215. [2022-03-01 17:48:36,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8215 states, 8214 states have (on average 3.5175310445580714) internal successors, (28893), 8214 states have internal predecessors, (28893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:36,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8215 states to 8215 states and 28893 transitions. [2022-03-01 17:48:36,601 INFO L78 Accepts]: Start accepts. Automaton has 8215 states and 28893 transitions. Word has length 47 [2022-03-01 17:48:36,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:36,602 INFO L470 AbstractCegarLoop]: Abstraction has 8215 states and 28893 transitions. [2022-03-01 17:48:36,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:36,602 INFO L276 IsEmpty]: Start isEmpty. Operand 8215 states and 28893 transitions. [2022-03-01 17:48:36,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:36,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:36,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:36,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-01 17:48:36,614 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:36,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:36,615 INFO L85 PathProgramCache]: Analyzing trace with hash 600471229, now seen corresponding path program 170 times [2022-03-01 17:48:36,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:36,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529879789] [2022-03-01 17:48:36,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:36,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:36,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:36,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:36,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529879789] [2022-03-01 17:48:36,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529879789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:36,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:36,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:48:36,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269844493] [2022-03-01 17:48:36,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:36,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:48:36,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:36,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:48:36,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:48:36,832 INFO L87 Difference]: Start difference. First operand 8215 states and 28893 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:41,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:41,024 INFO L93 Difference]: Finished difference Result 14645 states and 51587 transitions. [2022-03-01 17:48:41,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-03-01 17:48:41,025 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:41,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:41,058 INFO L225 Difference]: With dead ends: 14645 [2022-03-01 17:48:41,058 INFO L226 Difference]: Without dead ends: 14402 [2022-03-01 17:48:41,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4239 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=985, Invalid=11005, Unknown=0, NotChecked=0, Total=11990 [2022-03-01 17:48:41,059 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 954 mSDsluCounter, 4463 mSDsCounter, 0 mSdLazyCounter, 5958 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 6157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 5958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:41,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 3165 Invalid, 6157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 5958 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-01 17:48:41,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14402 states. [2022-03-01 17:48:41,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14402 to 8211. [2022-03-01 17:48:41,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8211 states, 8210 states have (on average 3.5266747868453105) internal successors, (28954), 8210 states have internal predecessors, (28954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:41,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8211 states to 8211 states and 28954 transitions. [2022-03-01 17:48:41,232 INFO L78 Accepts]: Start accepts. Automaton has 8211 states and 28954 transitions. Word has length 47 [2022-03-01 17:48:41,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:41,232 INFO L470 AbstractCegarLoop]: Abstraction has 8211 states and 28954 transitions. [2022-03-01 17:48:41,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:41,232 INFO L276 IsEmpty]: Start isEmpty. Operand 8211 states and 28954 transitions. [2022-03-01 17:48:41,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:41,245 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:41,245 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:41,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-01 17:48:41,245 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:41,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:41,246 INFO L85 PathProgramCache]: Analyzing trace with hash -250180679, now seen corresponding path program 171 times [2022-03-01 17:48:41,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:41,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902334484] [2022-03-01 17:48:41,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:41,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:41,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:41,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902334484] [2022-03-01 17:48:41,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902334484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:41,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:41,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:48:41,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537005323] [2022-03-01 17:48:41,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:41,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:48:41,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:41,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:48:41,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:48:41,471 INFO L87 Difference]: Start difference. First operand 8211 states and 28954 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:46,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:46,118 INFO L93 Difference]: Finished difference Result 15299 states and 54095 transitions. [2022-03-01 17:48:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-03-01 17:48:46,119 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:46,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:46,154 INFO L225 Difference]: With dead ends: 15299 [2022-03-01 17:48:46,154 INFO L226 Difference]: Without dead ends: 14982 [2022-03-01 17:48:46,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5291 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1124, Invalid=13396, Unknown=0, NotChecked=0, Total=14520 [2022-03-01 17:48:46,156 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 976 mSDsluCounter, 4822 mSDsCounter, 0 mSdLazyCounter, 6356 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 6560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 6356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:46,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 3518 Invalid, 6560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 6356 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-01 17:48:46,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14982 states. [2022-03-01 17:48:46,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14982 to 7895. [2022-03-01 17:48:46,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7895 states, 7894 states have (on average 3.5249556625285026) internal successors, (27826), 7894 states have internal predecessors, (27826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:46,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7895 states to 7895 states and 27826 transitions. [2022-03-01 17:48:46,360 INFO L78 Accepts]: Start accepts. Automaton has 7895 states and 27826 transitions. Word has length 47 [2022-03-01 17:48:46,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:46,360 INFO L470 AbstractCegarLoop]: Abstraction has 7895 states and 27826 transitions. [2022-03-01 17:48:46,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 7895 states and 27826 transitions. [2022-03-01 17:48:46,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:46,373 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:46,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:46,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-01 17:48:46,373 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:46,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:46,374 INFO L85 PathProgramCache]: Analyzing trace with hash 172664765, now seen corresponding path program 172 times [2022-03-01 17:48:46,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:46,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071253471] [2022-03-01 17:48:46,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:46,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:46,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:46,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:46,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071253471] [2022-03-01 17:48:46,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071253471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:46,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:46,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:48:46,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683451839] [2022-03-01 17:48:46,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:46,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:48:46,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:46,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:48:46,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:48:46,614 INFO L87 Difference]: Start difference. First operand 7895 states and 27826 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:50,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:50,277 INFO L93 Difference]: Finished difference Result 13242 states and 46560 transitions. [2022-03-01 17:48:50,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-01 17:48:50,278 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:50,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:50,308 INFO L225 Difference]: With dead ends: 13242 [2022-03-01 17:48:50,308 INFO L226 Difference]: Without dead ends: 13115 [2022-03-01 17:48:50,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2722 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=709, Invalid=7847, Unknown=0, NotChecked=0, Total=8556 [2022-03-01 17:48:50,308 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 877 mSDsluCounter, 5185 mSDsCounter, 0 mSdLazyCounter, 6142 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 3537 SdHoareTripleChecker+Invalid, 6261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 6142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:50,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [877 Valid, 3537 Invalid, 6261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 6142 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-01 17:48:50,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13115 states. [2022-03-01 17:48:50,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13115 to 7909. [2022-03-01 17:48:50,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7909 states, 7908 states have (on average 3.5235204855842186) internal successors, (27864), 7908 states have internal predecessors, (27864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7909 states to 7909 states and 27864 transitions. [2022-03-01 17:48:50,459 INFO L78 Accepts]: Start accepts. Automaton has 7909 states and 27864 transitions. Word has length 47 [2022-03-01 17:48:50,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:50,460 INFO L470 AbstractCegarLoop]: Abstraction has 7909 states and 27864 transitions. [2022-03-01 17:48:50,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:50,460 INFO L276 IsEmpty]: Start isEmpty. Operand 7909 states and 27864 transitions. [2022-03-01 17:48:50,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:50,472 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:50,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:50,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-01 17:48:50,473 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:50,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:50,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1178083839, now seen corresponding path program 173 times [2022-03-01 17:48:50,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:50,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400609622] [2022-03-01 17:48:50,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:50,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:50,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:50,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400609622] [2022-03-01 17:48:50,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400609622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:50,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:50,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:48:50,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549066604] [2022-03-01 17:48:50,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:50,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:48:50,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:50,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:48:50,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:48:50,714 INFO L87 Difference]: Start difference. First operand 7909 states and 27864 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:55,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:48:55,092 INFO L93 Difference]: Finished difference Result 14419 states and 50788 transitions. [2022-03-01 17:48:55,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-03-01 17:48:55,092 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:48:55,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:48:55,124 INFO L225 Difference]: With dead ends: 14419 [2022-03-01 17:48:55,124 INFO L226 Difference]: Without dead ends: 14330 [2022-03-01 17:48:55,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4324 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1025, Invalid=11407, Unknown=0, NotChecked=0, Total=12432 [2022-03-01 17:48:55,126 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 1003 mSDsluCounter, 4908 mSDsCounter, 0 mSdLazyCounter, 6185 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 3378 SdHoareTripleChecker+Invalid, 6379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 6185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:48:55,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 3378 Invalid, 6379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 6185 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-01 17:48:55,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14330 states. [2022-03-01 17:48:55,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14330 to 7917. [2022-03-01 17:48:55,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7917 states, 7916 states have (on average 3.5237493683678625) internal successors, (27894), 7916 states have internal predecessors, (27894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:55,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7917 states to 7917 states and 27894 transitions. [2022-03-01 17:48:55,288 INFO L78 Accepts]: Start accepts. Automaton has 7917 states and 27894 transitions. Word has length 47 [2022-03-01 17:48:55,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:48:55,288 INFO L470 AbstractCegarLoop]: Abstraction has 7917 states and 27894 transitions. [2022-03-01 17:48:55,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:48:55,289 INFO L276 IsEmpty]: Start isEmpty. Operand 7917 states and 27894 transitions. [2022-03-01 17:48:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:48:55,302 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:48:55,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:48:55,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-01 17:48:55,302 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:48:55,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:48:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2028735747, now seen corresponding path program 174 times [2022-03-01 17:48:55,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:48:55,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962284320] [2022-03-01 17:48:55,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:48:55,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:48:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:48:55,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:48:55,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:48:55,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962284320] [2022-03-01 17:48:55,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962284320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:48:55,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:48:55,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:48:55,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532769149] [2022-03-01 17:48:55,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:48:55,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:48:55,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:48:55,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:48:55,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:48:55,537 INFO L87 Difference]: Start difference. First operand 7917 states and 27894 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:01,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:01,066 INFO L93 Difference]: Finished difference Result 16386 states and 58025 transitions. [2022-03-01 17:49:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-03-01 17:49:01,066 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:01,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:01,106 INFO L225 Difference]: With dead ends: 16386 [2022-03-01 17:49:01,106 INFO L226 Difference]: Without dead ends: 16283 [2022-03-01 17:49:01,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7527 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1451, Invalid=18571, Unknown=0, NotChecked=0, Total=20022 [2022-03-01 17:49:01,109 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 1119 mSDsluCounter, 6013 mSDsCounter, 0 mSdLazyCounter, 7544 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 4200 SdHoareTripleChecker+Invalid, 7752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 7544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:01,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 4200 Invalid, 7752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 7544 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-01 17:49:01,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16283 states. [2022-03-01 17:49:01,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16283 to 7923. [2022-03-01 17:49:01,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7923 states, 7922 states have (on average 3.52511991921232) internal successors, (27926), 7922 states have internal predecessors, (27926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7923 states to 7923 states and 27926 transitions. [2022-03-01 17:49:01,340 INFO L78 Accepts]: Start accepts. Automaton has 7923 states and 27926 transitions. Word has length 47 [2022-03-01 17:49:01,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:01,340 INFO L470 AbstractCegarLoop]: Abstraction has 7923 states and 27926 transitions. [2022-03-01 17:49:01,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:01,340 INFO L276 IsEmpty]: Start isEmpty. Operand 7923 states and 27926 transitions. [2022-03-01 17:49:01,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:01,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:01,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:01,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-01 17:49:01,353 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:01,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:01,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1714588123, now seen corresponding path program 175 times [2022-03-01 17:49:01,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:01,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483150332] [2022-03-01 17:49:01,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:01,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:01,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:01,581 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:01,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483150332] [2022-03-01 17:49:01,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483150332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:01,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:01,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:49:01,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470182450] [2022-03-01 17:49:01,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:01,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:49:01,582 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:01,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:49:01,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:49:01,582 INFO L87 Difference]: Start difference. First operand 7923 states and 27926 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:04,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:04,713 INFO L93 Difference]: Finished difference Result 12451 states and 43758 transitions. [2022-03-01 17:49:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-01 17:49:04,713 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:04,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:04,742 INFO L225 Difference]: With dead ends: 12451 [2022-03-01 17:49:04,742 INFO L226 Difference]: Without dead ends: 12324 [2022-03-01 17:49:04,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1927 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=565, Invalid=5915, Unknown=0, NotChecked=0, Total=6480 [2022-03-01 17:49:04,743 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 762 mSDsluCounter, 4662 mSDsCounter, 0 mSdLazyCounter, 5440 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 5537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 5440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:04,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [762 Valid, 3270 Invalid, 5537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 5440 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-01 17:49:04,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12324 states. [2022-03-01 17:49:04,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12324 to 7939. [2022-03-01 17:49:04,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7939 states, 7938 states have (on average 3.5230536659108087) internal successors, (27966), 7938 states have internal predecessors, (27966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7939 states to 7939 states and 27966 transitions. [2022-03-01 17:49:04,888 INFO L78 Accepts]: Start accepts. Automaton has 7939 states and 27966 transitions. Word has length 47 [2022-03-01 17:49:04,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:04,888 INFO L470 AbstractCegarLoop]: Abstraction has 7939 states and 27966 transitions. [2022-03-01 17:49:04,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:04,889 INFO L276 IsEmpty]: Start isEmpty. Operand 7939 states and 27966 transitions. [2022-03-01 17:49:04,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:04,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:04,901 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:04,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-01 17:49:04,901 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:04,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:04,901 INFO L85 PathProgramCache]: Analyzing trace with hash -753007913, now seen corresponding path program 176 times [2022-03-01 17:49:04,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:04,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087100146] [2022-03-01 17:49:04,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:04,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:05,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:05,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087100146] [2022-03-01 17:49:05,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087100146] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:05,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:05,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:49:05,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105493109] [2022-03-01 17:49:05,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:05,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:49:05,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:05,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:49:05,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:49:05,126 INFO L87 Difference]: Start difference. First operand 7939 states and 27966 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:07,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:07,121 INFO L93 Difference]: Finished difference Result 10213 states and 35694 transitions. [2022-03-01 17:49:07,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 17:49:07,122 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:07,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:07,144 INFO L225 Difference]: With dead ends: 10213 [2022-03-01 17:49:07,144 INFO L226 Difference]: Without dead ends: 10116 [2022-03-01 17:49:07,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=331, Invalid=3209, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 17:49:07,145 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 553 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 3721 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 3776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:07,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [553 Valid, 1966 Invalid, 3776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3721 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-01 17:49:07,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10116 states. [2022-03-01 17:49:07,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10116 to 7945. [2022-03-01 17:49:07,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7945 states, 7944 states have (on average 3.522280966767372) internal successors, (27981), 7944 states have internal predecessors, (27981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:07,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7945 states to 7945 states and 27981 transitions. [2022-03-01 17:49:07,318 INFO L78 Accepts]: Start accepts. Automaton has 7945 states and 27981 transitions. Word has length 47 [2022-03-01 17:49:07,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:07,318 INFO L470 AbstractCegarLoop]: Abstraction has 7945 states and 27981 transitions. [2022-03-01 17:49:07,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:07,318 INFO L276 IsEmpty]: Start isEmpty. Operand 7945 states and 27981 transitions. [2022-03-01 17:49:07,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:07,331 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:07,331 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:07,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-01 17:49:07,331 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:07,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:07,331 INFO L85 PathProgramCache]: Analyzing trace with hash -750334087, now seen corresponding path program 177 times [2022-03-01 17:49:07,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:07,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981810177] [2022-03-01 17:49:07,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:07,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:07,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:07,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981810177] [2022-03-01 17:49:07,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981810177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:07,566 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:07,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:49:07,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029030213] [2022-03-01 17:49:07,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:07,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:49:07,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:07,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:49:07,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:49:07,567 INFO L87 Difference]: Start difference. First operand 7945 states and 27981 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:10,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:10,916 INFO L93 Difference]: Finished difference Result 11804 states and 41393 transitions. [2022-03-01 17:49:10,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-01 17:49:10,917 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:10,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:10,942 INFO L225 Difference]: With dead ends: 11804 [2022-03-01 17:49:10,942 INFO L226 Difference]: Without dead ends: 11695 [2022-03-01 17:49:10,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2735 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=808, Invalid=7748, Unknown=0, NotChecked=0, Total=8556 [2022-03-01 17:49:10,944 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 854 mSDsluCounter, 4284 mSDsCounter, 0 mSdLazyCounter, 4931 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 5079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 4931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:10,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [854 Valid, 2890 Invalid, 5079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 4931 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-01 17:49:11,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11695 states. [2022-03-01 17:49:11,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11695 to 7927. [2022-03-01 17:49:11,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7927 states, 7926 states have (on average 3.52409790562705) internal successors, (27932), 7926 states have internal predecessors, (27932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:11,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7927 states to 7927 states and 27932 transitions. [2022-03-01 17:49:11,123 INFO L78 Accepts]: Start accepts. Automaton has 7927 states and 27932 transitions. Word has length 47 [2022-03-01 17:49:11,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:11,123 INFO L470 AbstractCegarLoop]: Abstraction has 7927 states and 27932 transitions. [2022-03-01 17:49:11,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:11,123 INFO L276 IsEmpty]: Start isEmpty. Operand 7927 states and 27932 transitions. [2022-03-01 17:49:11,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:11,136 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:11,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:11,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-01 17:49:11,136 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:11,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:11,137 INFO L85 PathProgramCache]: Analyzing trace with hash -2058805759, now seen corresponding path program 178 times [2022-03-01 17:49:11,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:11,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145131474] [2022-03-01 17:49:11,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:11,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:11,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:11,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145131474] [2022-03-01 17:49:11,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145131474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:11,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:11,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:49:11,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977880147] [2022-03-01 17:49:11,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:11,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:49:11,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:11,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:49:11,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:49:11,373 INFO L87 Difference]: Start difference. First operand 7927 states and 27932 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:14,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:14,051 INFO L93 Difference]: Finished difference Result 10895 states and 37971 transitions. [2022-03-01 17:49:14,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-01 17:49:14,051 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:14,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:14,074 INFO L225 Difference]: With dead ends: 10895 [2022-03-01 17:49:14,075 INFO L226 Difference]: Without dead ends: 10774 [2022-03-01 17:49:14,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1602 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=487, Invalid=5063, Unknown=0, NotChecked=0, Total=5550 [2022-03-01 17:49:14,076 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 747 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 4674 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 4771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 4674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:14,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [747 Valid, 2577 Invalid, 4771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 4674 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-01 17:49:14,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10774 states. [2022-03-01 17:49:14,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10774 to 7945. [2022-03-01 17:49:14,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7945 states, 7944 states have (on average 3.5237915407854983) internal successors, (27993), 7944 states have internal predecessors, (27993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:14,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7945 states to 7945 states and 27993 transitions. [2022-03-01 17:49:14,252 INFO L78 Accepts]: Start accepts. Automaton has 7945 states and 27993 transitions. Word has length 47 [2022-03-01 17:49:14,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:14,252 INFO L470 AbstractCegarLoop]: Abstraction has 7945 states and 27993 transitions. [2022-03-01 17:49:14,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:14,252 INFO L276 IsEmpty]: Start isEmpty. Operand 7945 states and 27993 transitions. [2022-03-01 17:49:14,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:14,265 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:14,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:14,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-01 17:49:14,265 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:14,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:14,266 INFO L85 PathProgramCache]: Analyzing trace with hash -487384323, now seen corresponding path program 179 times [2022-03-01 17:49:14,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:14,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519888181] [2022-03-01 17:49:14,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:14,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:14,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:14,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:14,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519888181] [2022-03-01 17:49:14,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519888181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:14,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:14,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:49:14,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440805662] [2022-03-01 17:49:14,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:14,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:49:14,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:14,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:49:14,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:49:14,504 INFO L87 Difference]: Start difference. First operand 7945 states and 27993 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:19,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:19,235 INFO L93 Difference]: Finished difference Result 14844 states and 52008 transitions. [2022-03-01 17:49:19,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-03-01 17:49:19,235 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:19,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:19,268 INFO L225 Difference]: With dead ends: 14844 [2022-03-01 17:49:19,269 INFO L226 Difference]: Without dead ends: 14749 [2022-03-01 17:49:19,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5883 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1227, Invalid=15029, Unknown=0, NotChecked=0, Total=16256 [2022-03-01 17:49:19,270 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 999 mSDsluCounter, 5265 mSDsCounter, 0 mSdLazyCounter, 6581 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 3974 SdHoareTripleChecker+Invalid, 6773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 6581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:19,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 3974 Invalid, 6773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 6581 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-01 17:49:19,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14749 states. [2022-03-01 17:49:19,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14749 to 7949. [2022-03-01 17:49:19,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7949 states, 7948 states have (on average 3.523779567186714) internal successors, (28007), 7948 states have internal predecessors, (28007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:19,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7949 states to 7949 states and 28007 transitions. [2022-03-01 17:49:19,436 INFO L78 Accepts]: Start accepts. Automaton has 7949 states and 28007 transitions. Word has length 47 [2022-03-01 17:49:19,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:19,436 INFO L470 AbstractCegarLoop]: Abstraction has 7949 states and 28007 transitions. [2022-03-01 17:49:19,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:19,436 INFO L276 IsEmpty]: Start isEmpty. Operand 7949 states and 28007 transitions. [2022-03-01 17:49:19,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:19,449 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:19,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:19,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-01 17:49:19,449 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:19,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:19,449 INFO L85 PathProgramCache]: Analyzing trace with hash -188492645, now seen corresponding path program 180 times [2022-03-01 17:49:19,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:19,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488140033] [2022-03-01 17:49:19,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:19,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:19,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:19,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:19,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488140033] [2022-03-01 17:49:19,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488140033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:19,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:19,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:49:19,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67740391] [2022-03-01 17:49:19,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:19,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:49:19,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:19,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:49:19,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:49:19,673 INFO L87 Difference]: Start difference. First operand 7949 states and 28007 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:21,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:21,765 INFO L93 Difference]: Finished difference Result 10225 states and 35738 transitions. [2022-03-01 17:49:21,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 17:49:21,765 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:21,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:21,787 INFO L225 Difference]: With dead ends: 10225 [2022-03-01 17:49:21,787 INFO L226 Difference]: Without dead ends: 10128 [2022-03-01 17:49:21,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=340, Invalid=3200, Unknown=0, NotChecked=0, Total=3540 [2022-03-01 17:49:21,788 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 563 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 3638 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 3696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:21,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 1901 Invalid, 3696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3638 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-01 17:49:21,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10128 states. [2022-03-01 17:49:21,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10128 to 7957. [2022-03-01 17:49:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7957 states, 7956 states have (on average 3.5224987430869783) internal successors, (28025), 7956 states have internal predecessors, (28025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:21,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7957 states to 7957 states and 28025 transitions. [2022-03-01 17:49:21,927 INFO L78 Accepts]: Start accepts. Automaton has 7957 states and 28025 transitions. Word has length 47 [2022-03-01 17:49:21,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:21,927 INFO L470 AbstractCegarLoop]: Abstraction has 7957 states and 28025 transitions. [2022-03-01 17:49:21,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:21,927 INFO L276 IsEmpty]: Start isEmpty. Operand 7957 states and 28025 transitions. [2022-03-01 17:49:21,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:21,940 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:21,940 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:21,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-01 17:49:21,940 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:21,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:21,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1913913155, now seen corresponding path program 181 times [2022-03-01 17:49:21,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:21,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411719963] [2022-03-01 17:49:21,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:21,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:22,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:22,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:22,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411719963] [2022-03-01 17:49:22,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411719963] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:22,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:22,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:49:22,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735452902] [2022-03-01 17:49:22,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:22,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:49:22,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:22,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:49:22,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:49:22,183 INFO L87 Difference]: Start difference. First operand 7957 states and 28025 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:27,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:27,410 INFO L93 Difference]: Finished difference Result 15322 states and 53658 transitions. [2022-03-01 17:49:27,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-01 17:49:27,410 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:27,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:27,443 INFO L225 Difference]: With dead ends: 15322 [2022-03-01 17:49:27,443 INFO L226 Difference]: Without dead ends: 15092 [2022-03-01 17:49:27,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6884 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1516, Invalid=17116, Unknown=0, NotChecked=0, Total=18632 [2022-03-01 17:49:27,445 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 1225 mSDsluCounter, 6018 mSDsCounter, 0 mSdLazyCounter, 6715 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 3942 SdHoareTripleChecker+Invalid, 7010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 6715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:27,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1225 Valid, 3942 Invalid, 7010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 6715 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-01 17:49:27,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15092 states. [2022-03-01 17:49:27,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15092 to 8232. [2022-03-01 17:49:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8232 states, 8231 states have (on average 3.5352934029887013) internal successors, (29099), 8231 states have internal predecessors, (29099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8232 states to 8232 states and 29099 transitions. [2022-03-01 17:49:27,687 INFO L78 Accepts]: Start accepts. Automaton has 8232 states and 29099 transitions. Word has length 47 [2022-03-01 17:49:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:27,687 INFO L470 AbstractCegarLoop]: Abstraction has 8232 states and 29099 transitions. [2022-03-01 17:49:27,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:27,687 INFO L276 IsEmpty]: Start isEmpty. Operand 8232 states and 29099 transitions. [2022-03-01 17:49:27,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:27,701 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:27,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:27,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-01 17:49:27,701 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:27,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:27,702 INFO L85 PathProgramCache]: Analyzing trace with hash 156697947, now seen corresponding path program 182 times [2022-03-01 17:49:27,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:27,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161614709] [2022-03-01 17:49:27,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:27,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:27,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:27,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161614709] [2022-03-01 17:49:27,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161614709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:27,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:27,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:49:27,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127204951] [2022-03-01 17:49:27,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:27,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:49:27,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:27,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:49:27,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:49:27,938 INFO L87 Difference]: Start difference. First operand 8232 states and 29099 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:30,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:30,168 INFO L93 Difference]: Finished difference Result 10831 states and 38019 transitions. [2022-03-01 17:49:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-01 17:49:30,168 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:30,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:30,190 INFO L225 Difference]: With dead ends: 10831 [2022-03-01 17:49:30,191 INFO L226 Difference]: Without dead ends: 10694 [2022-03-01 17:49:30,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1242 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=411, Invalid=4011, Unknown=0, NotChecked=0, Total=4422 [2022-03-01 17:49:30,192 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 629 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 3748 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:30,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 2189 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 3748 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-01 17:49:30,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10694 states. [2022-03-01 17:49:30,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10694 to 8250. [2022-03-01 17:49:30,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8250 states, 8249 states have (on average 3.5330343071887502) internal successors, (29144), 8249 states have internal predecessors, (29144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:30,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8250 states to 8250 states and 29144 transitions. [2022-03-01 17:49:30,337 INFO L78 Accepts]: Start accepts. Automaton has 8250 states and 29144 transitions. Word has length 47 [2022-03-01 17:49:30,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:30,337 INFO L470 AbstractCegarLoop]: Abstraction has 8250 states and 29144 transitions. [2022-03-01 17:49:30,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:30,337 INFO L276 IsEmpty]: Start isEmpty. Operand 8250 states and 29144 transitions. [2022-03-01 17:49:30,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:30,350 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:30,350 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:30,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-01 17:49:30,350 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:30,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:30,351 INFO L85 PathProgramCache]: Analyzing trace with hash -652242661, now seen corresponding path program 183 times [2022-03-01 17:49:30,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:30,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901421970] [2022-03-01 17:49:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:30,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:30,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:30,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901421970] [2022-03-01 17:49:30,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901421970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:30,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:30,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:49:30,645 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635492085] [2022-03-01 17:49:30,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:30,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:49:30,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:30,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:49:30,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:49:30,645 INFO L87 Difference]: Start difference. First operand 8250 states and 29144 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:33,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:33,110 INFO L93 Difference]: Finished difference Result 10815 states and 37951 transitions. [2022-03-01 17:49:33,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-01 17:49:33,110 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:33,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:33,135 INFO L225 Difference]: With dead ends: 10815 [2022-03-01 17:49:33,135 INFO L226 Difference]: Without dead ends: 10670 [2022-03-01 17:49:33,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1345 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=427, Invalid=4403, Unknown=0, NotChecked=0, Total=4830 [2022-03-01 17:49:33,136 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 694 mSDsluCounter, 3544 mSDsCounter, 0 mSdLazyCounter, 4325 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 2449 SdHoareTripleChecker+Invalid, 4417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 4325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:33,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [694 Valid, 2449 Invalid, 4417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 4325 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:49:33,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-03-01 17:49:33,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 8250. [2022-03-01 17:49:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8250 states, 8249 states have (on average 3.532306946296521) internal successors, (29138), 8249 states have internal predecessors, (29138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:33,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8250 states to 8250 states and 29138 transitions. [2022-03-01 17:49:33,306 INFO L78 Accepts]: Start accepts. Automaton has 8250 states and 29138 transitions. Word has length 47 [2022-03-01 17:49:33,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:33,306 INFO L470 AbstractCegarLoop]: Abstraction has 8250 states and 29138 transitions. [2022-03-01 17:49:33,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:33,306 INFO L276 IsEmpty]: Start isEmpty. Operand 8250 states and 29138 transitions. [2022-03-01 17:49:33,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:33,321 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:33,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:33,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-01 17:49:33,321 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:33,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:33,321 INFO L85 PathProgramCache]: Analyzing trace with hash 247653117, now seen corresponding path program 184 times [2022-03-01 17:49:33,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:33,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372400454] [2022-03-01 17:49:33,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:33,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:33,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:33,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372400454] [2022-03-01 17:49:33,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372400454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:33,593 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:33,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:49:33,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796794090] [2022-03-01 17:49:33,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:33,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:49:33,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:33,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:49:33,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:49:33,594 INFO L87 Difference]: Start difference. First operand 8250 states and 29138 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:38,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:38,756 INFO L93 Difference]: Finished difference Result 15896 states and 56270 transitions. [2022-03-01 17:49:38,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-03-01 17:49:38,756 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:38,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:38,792 INFO L225 Difference]: With dead ends: 15896 [2022-03-01 17:49:38,792 INFO L226 Difference]: Without dead ends: 15759 [2022-03-01 17:49:38,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6381 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1245, Invalid=16047, Unknown=0, NotChecked=0, Total=17292 [2022-03-01 17:49:38,793 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1134 mSDsluCounter, 5275 mSDsCounter, 0 mSdLazyCounter, 6922 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 7177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 6922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:38,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 3884 Invalid, 7177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 6922 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-01 17:49:38,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15759 states. [2022-03-01 17:49:38,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15759 to 8399. [2022-03-01 17:49:38,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8399 states, 8398 states have (on average 3.5382233865206003) internal successors, (29714), 8398 states have internal predecessors, (29714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8399 states to 8399 states and 29714 transitions. [2022-03-01 17:49:38,975 INFO L78 Accepts]: Start accepts. Automaton has 8399 states and 29714 transitions. Word has length 47 [2022-03-01 17:49:38,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:38,975 INFO L470 AbstractCegarLoop]: Abstraction has 8399 states and 29714 transitions. [2022-03-01 17:49:38,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:38,975 INFO L276 IsEmpty]: Start isEmpty. Operand 8399 states and 29714 transitions. [2022-03-01 17:49:38,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:38,989 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:38,989 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:38,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-01 17:49:38,989 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:38,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:38,989 INFO L85 PathProgramCache]: Analyzing trace with hash -602998791, now seen corresponding path program 185 times [2022-03-01 17:49:38,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:38,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025582959] [2022-03-01 17:49:38,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:38,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:39,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:39,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:39,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025582959] [2022-03-01 17:49:39,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025582959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:39,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:39,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:49:39,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32655222] [2022-03-01 17:49:39,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:39,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:49:39,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:39,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:49:39,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:49:39,225 INFO L87 Difference]: Start difference. First operand 8399 states and 29714 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:44,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:44,923 INFO L93 Difference]: Finished difference Result 16821 states and 59650 transitions. [2022-03-01 17:49:44,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-03-01 17:49:44,924 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:44,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:45,010 INFO L225 Difference]: With dead ends: 16821 [2022-03-01 17:49:45,011 INFO L226 Difference]: Without dead ends: 16561 [2022-03-01 17:49:45,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7651 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1423, Invalid=18883, Unknown=0, NotChecked=0, Total=20306 [2022-03-01 17:49:45,011 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1149 mSDsluCounter, 5798 mSDsCounter, 0 mSdLazyCounter, 7603 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 4267 SdHoareTripleChecker+Invalid, 7857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 7603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:45,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1149 Valid, 4267 Invalid, 7857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 7603 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-01 17:49:45,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16561 states. [2022-03-01 17:49:45,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16561 to 8241. [2022-03-01 17:49:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8241 states, 8240 states have (on average 3.533252427184466) internal successors, (29114), 8240 states have internal predecessors, (29114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:45,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8241 states to 8241 states and 29114 transitions. [2022-03-01 17:49:45,199 INFO L78 Accepts]: Start accepts. Automaton has 8241 states and 29114 transitions. Word has length 47 [2022-03-01 17:49:45,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:45,199 INFO L470 AbstractCegarLoop]: Abstraction has 8241 states and 29114 transitions. [2022-03-01 17:49:45,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:45,199 INFO L276 IsEmpty]: Start isEmpty. Operand 8241 states and 29114 transitions. [2022-03-01 17:49:45,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:45,212 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:45,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:45,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-01 17:49:45,212 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:45,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:45,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1077602655, now seen corresponding path program 186 times [2022-03-01 17:49:45,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:45,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309221926] [2022-03-01 17:49:45,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:45,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:45,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:45,443 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:45,443 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309221926] [2022-03-01 17:49:45,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309221926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:45,443 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:45,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:49:45,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459637932] [2022-03-01 17:49:45,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:45,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:49:45,443 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:45,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:49:45,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:49:45,444 INFO L87 Difference]: Start difference. First operand 8241 states and 29114 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:48,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:48,035 INFO L93 Difference]: Finished difference Result 11022 states and 38552 transitions. [2022-03-01 17:49:48,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-01 17:49:48,036 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:48,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:48,059 INFO L225 Difference]: With dead ends: 11022 [2022-03-01 17:49:48,059 INFO L226 Difference]: Without dead ends: 10901 [2022-03-01 17:49:48,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1607 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=477, Invalid=5073, Unknown=0, NotChecked=0, Total=5550 [2022-03-01 17:49:48,060 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 735 mSDsluCounter, 3625 mSDsCounter, 0 mSdLazyCounter, 4406 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 4508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 4406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:48,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [735 Valid, 2485 Invalid, 4508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 4406 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:49:48,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10901 states. [2022-03-01 17:49:48,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10901 to 8241. [2022-03-01 17:49:48,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8241 states, 8240 states have (on average 3.533252427184466) internal successors, (29114), 8240 states have internal predecessors, (29114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:48,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8241 states to 8241 states and 29114 transitions. [2022-03-01 17:49:48,198 INFO L78 Accepts]: Start accepts. Automaton has 8241 states and 29114 transitions. Word has length 47 [2022-03-01 17:49:48,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:48,198 INFO L470 AbstractCegarLoop]: Abstraction has 8241 states and 29114 transitions. [2022-03-01 17:49:48,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:48,198 INFO L276 IsEmpty]: Start isEmpty. Operand 8241 states and 29114 transitions. [2022-03-01 17:49:48,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:48,212 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:48,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:48,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-01 17:49:48,212 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:48,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:48,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1645943205, now seen corresponding path program 187 times [2022-03-01 17:49:48,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:48,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776437338] [2022-03-01 17:49:48,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:48,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:48,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:48,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:48,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776437338] [2022-03-01 17:49:48,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776437338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:48,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:48,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:49:48,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724548882] [2022-03-01 17:49:48,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:48,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:49:48,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:48,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:49:48,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:49:48,444 INFO L87 Difference]: Start difference. First operand 8241 states and 29114 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:53,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:53,400 INFO L93 Difference]: Finished difference Result 15203 states and 53548 transitions. [2022-03-01 17:49:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-03-01 17:49:53,401 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:53,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:53,435 INFO L225 Difference]: With dead ends: 15203 [2022-03-01 17:49:53,435 INFO L226 Difference]: Without dead ends: 14959 [2022-03-01 17:49:53,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6543 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1297, Invalid=16525, Unknown=0, NotChecked=0, Total=17822 [2022-03-01 17:49:53,437 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1019 mSDsluCounter, 5502 mSDsCounter, 0 mSdLazyCounter, 6782 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 4284 SdHoareTripleChecker+Invalid, 6992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 6782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:53,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1019 Valid, 4284 Invalid, 6992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 6782 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-01 17:49:53,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14959 states. [2022-03-01 17:49:53,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14959 to 8223. [2022-03-01 17:49:53,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8223 states, 8222 states have (on average 3.534784723911457) internal successors, (29063), 8222 states have internal predecessors, (29063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:53,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8223 states to 8223 states and 29063 transitions. [2022-03-01 17:49:53,620 INFO L78 Accepts]: Start accepts. Automaton has 8223 states and 29063 transitions. Word has length 47 [2022-03-01 17:49:53,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:53,620 INFO L470 AbstractCegarLoop]: Abstraction has 8223 states and 29063 transitions. [2022-03-01 17:49:53,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:53,620 INFO L276 IsEmpty]: Start isEmpty. Operand 8223 states and 29063 transitions. [2022-03-01 17:49:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:53,658 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:53,658 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:53,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-01 17:49:53,658 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:53,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:53,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1347051527, now seen corresponding path program 188 times [2022-03-01 17:49:53,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:53,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201310049] [2022-03-01 17:49:53,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:53,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:53,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:53,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:53,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201310049] [2022-03-01 17:49:53,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201310049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:53,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:53,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:49:53,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299556207] [2022-03-01 17:49:53,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:53,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:49:53,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:53,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:49:53,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:49:53,892 INFO L87 Difference]: Start difference. First operand 8223 states and 29063 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:55,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:49:55,829 INFO L93 Difference]: Finished difference Result 10368 states and 36385 transitions. [2022-03-01 17:49:55,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-01 17:49:55,829 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:49:55,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:49:55,851 INFO L225 Difference]: With dead ends: 10368 [2022-03-01 17:49:55,851 INFO L226 Difference]: Without dead ends: 10271 [2022-03-01 17:49:55,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 959 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=340, Invalid=3320, Unknown=0, NotChecked=0, Total=3660 [2022-03-01 17:49:55,852 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 521 mSDsluCounter, 2867 mSDsCounter, 0 mSdLazyCounter, 3441 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 3499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:49:55,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 1879 Invalid, 3499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3441 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-01 17:49:55,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10271 states. [2022-03-01 17:49:55,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10271 to 8237. [2022-03-01 17:49:55,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8237 states, 8236 states have (on average 3.5320543953375423) internal successors, (29090), 8236 states have internal predecessors, (29090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:56,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8237 states to 8237 states and 29090 transitions. [2022-03-01 17:49:56,000 INFO L78 Accepts]: Start accepts. Automaton has 8237 states and 29090 transitions. Word has length 47 [2022-03-01 17:49:56,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:49:56,000 INFO L470 AbstractCegarLoop]: Abstraction has 8237 states and 29090 transitions. [2022-03-01 17:49:56,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:49:56,000 INFO L276 IsEmpty]: Start isEmpty. Operand 8237 states and 29090 transitions. [2022-03-01 17:49:56,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:49:56,014 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:49:56,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:49:56,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-01 17:49:56,014 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:49:56,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:49:56,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1222495259, now seen corresponding path program 189 times [2022-03-01 17:49:56,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:49:56,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855191283] [2022-03-01 17:49:56,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:49:56,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:49:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:49:56,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:49:56,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:49:56,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855191283] [2022-03-01 17:49:56,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855191283] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:49:56,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:49:56,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:49:56,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287420428] [2022-03-01 17:49:56,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:49:56,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:49:56,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:49:56,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:49:56,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:49:56,253 INFO L87 Difference]: Start difference. First operand 8237 states and 29090 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:01,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:01,182 INFO L93 Difference]: Finished difference Result 15369 states and 53940 transitions. [2022-03-01 17:50:01,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-03-01 17:50:01,182 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:01,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:01,217 INFO L225 Difference]: With dead ends: 15369 [2022-03-01 17:50:01,217 INFO L226 Difference]: Without dead ends: 14901 [2022-03-01 17:50:01,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5662 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1290, Invalid=14460, Unknown=0, NotChecked=0, Total=15750 [2022-03-01 17:50:01,218 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 1177 mSDsluCounter, 6052 mSDsCounter, 0 mSdLazyCounter, 6899 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 4170 SdHoareTripleChecker+Invalid, 7176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 6899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:01,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 4170 Invalid, 7176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 6899 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-01 17:50:01,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14901 states. [2022-03-01 17:50:01,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14901 to 8363. [2022-03-01 17:50:01,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8363 states, 8362 states have (on average 3.5418560153073426) internal successors, (29617), 8362 states have internal predecessors, (29617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:01,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8363 states to 8363 states and 29617 transitions. [2022-03-01 17:50:01,394 INFO L78 Accepts]: Start accepts. Automaton has 8363 states and 29617 transitions. Word has length 47 [2022-03-01 17:50:01,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:01,394 INFO L470 AbstractCegarLoop]: Abstraction has 8363 states and 29617 transitions. [2022-03-01 17:50:01,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:01,394 INFO L276 IsEmpty]: Start isEmpty. Operand 8363 states and 29617 transitions. [2022-03-01 17:50:01,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:01,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:01,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:01,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-01 17:50:01,409 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:01,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:01,409 INFO L85 PathProgramCache]: Analyzing trace with hash 135347419, now seen corresponding path program 190 times [2022-03-01 17:50:01,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:01,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734052598] [2022-03-01 17:50:01,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:01,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:01,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:01,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734052598] [2022-03-01 17:50:01,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734052598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:01,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:01,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:01,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499015395] [2022-03-01 17:50:01,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:01,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:01,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:01,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:01,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:01,649 INFO L87 Difference]: Start difference. First operand 8363 states and 29617 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:04,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:04,695 INFO L93 Difference]: Finished difference Result 12940 states and 45590 transitions. [2022-03-01 17:50:04,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-01 17:50:04,696 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:04,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:04,729 INFO L225 Difference]: With dead ends: 12940 [2022-03-01 17:50:04,729 INFO L226 Difference]: Without dead ends: 12813 [2022-03-01 17:50:04,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1829 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=542, Invalid=5620, Unknown=0, NotChecked=0, Total=6162 [2022-03-01 17:50:04,730 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 739 mSDsluCounter, 4449 mSDsCounter, 0 mSdLazyCounter, 5270 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 5382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 5270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:04,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 2962 Invalid, 5382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 5270 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:50:04,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12813 states. [2022-03-01 17:50:04,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12813 to 8395. [2022-03-01 17:50:04,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8395 states, 8394 states have (on average 3.5395520609959497) internal successors, (29711), 8394 states have internal predecessors, (29711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:04,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8395 states to 8395 states and 29711 transitions. [2022-03-01 17:50:04,902 INFO L78 Accepts]: Start accepts. Automaton has 8395 states and 29711 transitions. Word has length 47 [2022-03-01 17:50:04,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:04,903 INFO L470 AbstractCegarLoop]: Abstraction has 8395 states and 29711 transitions. [2022-03-01 17:50:04,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:04,903 INFO L276 IsEmpty]: Start isEmpty. Operand 8395 states and 29711 transitions. [2022-03-01 17:50:04,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:04,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:04,917 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:04,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-01 17:50:04,917 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:04,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:04,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1235849987, now seen corresponding path program 191 times [2022-03-01 17:50:04,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:04,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279113097] [2022-03-01 17:50:04,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:04,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:05,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:05,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279113097] [2022-03-01 17:50:05,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279113097] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:05,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:05,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:05,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067100633] [2022-03-01 17:50:05,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:05,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:05,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:05,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:05,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:05,157 INFO L87 Difference]: Start difference. First operand 8395 states and 29711 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:08,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:08,070 INFO L93 Difference]: Finished difference Result 12641 states and 44540 transitions. [2022-03-01 17:50:08,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-01 17:50:08,071 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:08,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:08,100 INFO L225 Difference]: With dead ends: 12641 [2022-03-01 17:50:08,100 INFO L226 Difference]: Without dead ends: 12541 [2022-03-01 17:50:08,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1552 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=494, Invalid=4908, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 17:50:08,100 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 783 mSDsluCounter, 4087 mSDsCounter, 0 mSdLazyCounter, 4638 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 2801 SdHoareTripleChecker+Invalid, 4747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 4638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:08,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [783 Valid, 2801 Invalid, 4747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 4638 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-01 17:50:08,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12541 states. [2022-03-01 17:50:08,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12541 to 8422. [2022-03-01 17:50:08,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8422 states, 8421 states have (on average 3.536040850255314) internal successors, (29777), 8421 states have internal predecessors, (29777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:08,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8422 states to 8422 states and 29777 transitions. [2022-03-01 17:50:08,258 INFO L78 Accepts]: Start accepts. Automaton has 8422 states and 29777 transitions. Word has length 47 [2022-03-01 17:50:08,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:08,258 INFO L470 AbstractCegarLoop]: Abstraction has 8422 states and 29777 transitions. [2022-03-01 17:50:08,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:08,258 INFO L276 IsEmpty]: Start isEmpty. Operand 8422 states and 29777 transitions. [2022-03-01 17:50:08,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:08,272 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:08,272 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:08,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-01 17:50:08,273 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:08,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:08,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1624049819, now seen corresponding path program 192 times [2022-03-01 17:50:08,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:08,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140594854] [2022-03-01 17:50:08,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:08,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:08,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:08,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140594854] [2022-03-01 17:50:08,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140594854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:08,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:08,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:08,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123422052] [2022-03-01 17:50:08,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:08,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:08,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:08,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:08,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:08,505 INFO L87 Difference]: Start difference. First operand 8422 states and 29777 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:12,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:12,346 INFO L93 Difference]: Finished difference Result 14137 states and 49621 transitions. [2022-03-01 17:50:12,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-01 17:50:12,347 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:12,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:12,378 INFO L225 Difference]: With dead ends: 14137 [2022-03-01 17:50:12,378 INFO L226 Difference]: Without dead ends: 14019 [2022-03-01 17:50:12,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3527 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=879, Invalid=9627, Unknown=0, NotChecked=0, Total=10506 [2022-03-01 17:50:12,380 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 965 mSDsluCounter, 4971 mSDsCounter, 0 mSdLazyCounter, 5759 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 5939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 5759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:12,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 3569 Invalid, 5939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 5759 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-01 17:50:12,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14019 states. [2022-03-01 17:50:12,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14019 to 8395. [2022-03-01 17:50:12,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8395 states, 8394 states have (on average 3.5390755301405767) internal successors, (29707), 8394 states have internal predecessors, (29707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:12,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8395 states to 8395 states and 29707 transitions. [2022-03-01 17:50:12,614 INFO L78 Accepts]: Start accepts. Automaton has 8395 states and 29707 transitions. Word has length 47 [2022-03-01 17:50:12,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:12,614 INFO L470 AbstractCegarLoop]: Abstraction has 8395 states and 29707 transitions. [2022-03-01 17:50:12,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:12,614 INFO L276 IsEmpty]: Start isEmpty. Operand 8395 states and 29707 transitions. [2022-03-01 17:50:12,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:12,628 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:12,628 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:12,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-01 17:50:12,628 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:12,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:12,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2113051135, now seen corresponding path program 193 times [2022-03-01 17:50:12,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:12,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229105915] [2022-03-01 17:50:12,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:12,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:12,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:12,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:12,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229105915] [2022-03-01 17:50:12,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229105915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:12,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:12,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:12,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931782570] [2022-03-01 17:50:12,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:12,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:12,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:12,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:12,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:12,861 INFO L87 Difference]: Start difference. First operand 8395 states and 29707 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:16,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:16,887 INFO L93 Difference]: Finished difference Result 15417 states and 54397 transitions. [2022-03-01 17:50:16,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-03-01 17:50:16,887 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:16,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:16,922 INFO L225 Difference]: With dead ends: 15417 [2022-03-01 17:50:16,922 INFO L226 Difference]: Without dead ends: 15312 [2022-03-01 17:50:16,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3712 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=843, Invalid=10077, Unknown=0, NotChecked=0, Total=10920 [2022-03-01 17:50:16,923 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 1018 mSDsluCounter, 5314 mSDsCounter, 0 mSdLazyCounter, 6004 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 6229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 6004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:16,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1018 Valid, 3785 Invalid, 6229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 6004 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-01 17:50:16,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15312 states. [2022-03-01 17:50:17,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15312 to 8409. [2022-03-01 17:50:17,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8409 states, 8408 states have (on average 3.538415794481446) internal successors, (29751), 8408 states have internal predecessors, (29751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:17,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8409 states to 8409 states and 29751 transitions. [2022-03-01 17:50:17,101 INFO L78 Accepts]: Start accepts. Automaton has 8409 states and 29751 transitions. Word has length 47 [2022-03-01 17:50:17,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:17,101 INFO L470 AbstractCegarLoop]: Abstraction has 8409 states and 29751 transitions. [2022-03-01 17:50:17,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:17,101 INFO L276 IsEmpty]: Start isEmpty. Operand 8409 states and 29751 transitions. [2022-03-01 17:50:17,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:17,115 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:17,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:17,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-01 17:50:17,115 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:17,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:17,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1659983361, now seen corresponding path program 194 times [2022-03-01 17:50:17,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:17,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326116701] [2022-03-01 17:50:17,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:17,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:17,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:17,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:17,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326116701] [2022-03-01 17:50:17,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326116701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:17,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:17,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:17,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327480306] [2022-03-01 17:50:17,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:17,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:17,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:17,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:17,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:17,355 INFO L87 Difference]: Start difference. First operand 8409 states and 29751 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:20,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:20,179 INFO L93 Difference]: Finished difference Result 12990 states and 45708 transitions. [2022-03-01 17:50:20,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-01 17:50:20,179 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:20,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:20,208 INFO L225 Difference]: With dead ends: 12990 [2022-03-01 17:50:20,208 INFO L226 Difference]: Without dead ends: 12884 [2022-03-01 17:50:20,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1589 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=540, Invalid=5010, Unknown=0, NotChecked=0, Total=5550 [2022-03-01 17:50:20,209 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 766 mSDsluCounter, 4209 mSDsCounter, 0 mSdLazyCounter, 4719 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 4830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 4719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:20,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 2855 Invalid, 4830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 4719 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-01 17:50:20,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12884 states. [2022-03-01 17:50:20,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12884 to 8409. [2022-03-01 17:50:20,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8409 states, 8408 states have (on average 3.538415794481446) internal successors, (29751), 8408 states have internal predecessors, (29751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:20,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8409 states to 8409 states and 29751 transitions. [2022-03-01 17:50:20,385 INFO L78 Accepts]: Start accepts. Automaton has 8409 states and 29751 transitions. Word has length 47 [2022-03-01 17:50:20,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:20,385 INFO L470 AbstractCegarLoop]: Abstraction has 8409 states and 29751 transitions. [2022-03-01 17:50:20,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:20,385 INFO L276 IsEmpty]: Start isEmpty. Operand 8409 states and 29751 transitions. [2022-03-01 17:50:20,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:20,399 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:20,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:20,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-01 17:50:20,399 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:20,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:20,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1018217213, now seen corresponding path program 195 times [2022-03-01 17:50:20,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:20,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937149335] [2022-03-01 17:50:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:20,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:20,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:20,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:20,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937149335] [2022-03-01 17:50:20,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937149335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:20,635 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:20,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:20,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090750585] [2022-03-01 17:50:20,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:20,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:20,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:20,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:20,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:20,635 INFO L87 Difference]: Start difference. First operand 8409 states and 29751 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:25,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:25,981 INFO L93 Difference]: Finished difference Result 17836 states and 63151 transitions. [2022-03-01 17:50:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-03-01 17:50:25,982 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:25,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:26,023 INFO L225 Difference]: With dead ends: 17836 [2022-03-01 17:50:26,024 INFO L226 Difference]: Without dead ends: 17523 [2022-03-01 17:50:26,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6362 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1266, Invalid=16026, Unknown=0, NotChecked=0, Total=17292 [2022-03-01 17:50:26,025 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1012 mSDsluCounter, 6323 mSDsCounter, 0 mSdLazyCounter, 7506 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 4474 SdHoareTripleChecker+Invalid, 7744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 7506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:26,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1012 Valid, 4474 Invalid, 7744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 7506 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-01 17:50:26,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17523 states. [2022-03-01 17:50:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17523 to 8449. [2022-03-01 17:50:26,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8449 states, 8448 states have (on average 3.539535984848485) internal successors, (29902), 8448 states have internal predecessors, (29902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:26,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8449 states to 8449 states and 29902 transitions. [2022-03-01 17:50:26,229 INFO L78 Accepts]: Start accepts. Automaton has 8449 states and 29902 transitions. Word has length 47 [2022-03-01 17:50:26,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:26,229 INFO L470 AbstractCegarLoop]: Abstraction has 8449 states and 29902 transitions. [2022-03-01 17:50:26,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:26,229 INFO L276 IsEmpty]: Start isEmpty. Operand 8449 states and 29902 transitions. [2022-03-01 17:50:26,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:26,243 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:26,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:26,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-01 17:50:26,243 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:26,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:26,243 INFO L85 PathProgramCache]: Analyzing trace with hash -434813029, now seen corresponding path program 196 times [2022-03-01 17:50:26,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:26,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111896295] [2022-03-01 17:50:26,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:26,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:26,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:26,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:26,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111896295] [2022-03-01 17:50:26,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111896295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:26,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:26,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:26,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366292768] [2022-03-01 17:50:26,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:26,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:26,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:26,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:26,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:26,535 INFO L87 Difference]: Start difference. First operand 8449 states and 29902 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:29,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:29,613 INFO L93 Difference]: Finished difference Result 13381 states and 47204 transitions. [2022-03-01 17:50:29,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-01 17:50:29,613 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:29,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:29,644 INFO L225 Difference]: With dead ends: 13381 [2022-03-01 17:50:29,645 INFO L226 Difference]: Without dead ends: 13281 [2022-03-01 17:50:29,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1887 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=577, Invalid=5743, Unknown=0, NotChecked=0, Total=6320 [2022-03-01 17:50:29,645 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 804 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 5039 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 3055 SdHoareTripleChecker+Invalid, 5157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 5039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:29,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 3055 Invalid, 5157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 5039 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:50:29,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13281 states. [2022-03-01 17:50:29,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13281 to 8458. [2022-03-01 17:50:29,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8458 states, 8457 states have (on average 3.5383705805841315) internal successors, (29924), 8457 states have internal predecessors, (29924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:29,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8458 states to 8458 states and 29924 transitions. [2022-03-01 17:50:29,808 INFO L78 Accepts]: Start accepts. Automaton has 8458 states and 29924 transitions. Word has length 47 [2022-03-01 17:50:29,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:29,809 INFO L470 AbstractCegarLoop]: Abstraction has 8458 states and 29924 transitions. [2022-03-01 17:50:29,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:29,809 INFO L276 IsEmpty]: Start isEmpty. Operand 8458 states and 29924 transitions. [2022-03-01 17:50:29,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:29,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:29,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:29,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-01 17:50:29,822 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:29,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:29,823 INFO L85 PathProgramCache]: Analyzing trace with hash -500875587, now seen corresponding path program 197 times [2022-03-01 17:50:29,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:29,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81320887] [2022-03-01 17:50:29,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:29,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:30,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:30,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:30,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81320887] [2022-03-01 17:50:30,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81320887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:30,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:30,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:30,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073990657] [2022-03-01 17:50:30,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:30,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:30,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:30,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:30,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:30,058 INFO L87 Difference]: Start difference. First operand 8458 states and 29924 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:34,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:34,352 INFO L93 Difference]: Finished difference Result 14984 states and 52632 transitions. [2022-03-01 17:50:34,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-03-01 17:50:34,353 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:34,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:34,387 INFO L225 Difference]: With dead ends: 14984 [2022-03-01 17:50:34,387 INFO L226 Difference]: Without dead ends: 14878 [2022-03-01 17:50:34,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4122 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=960, Invalid=11030, Unknown=0, NotChecked=0, Total=11990 [2022-03-01 17:50:34,388 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 1013 mSDsluCounter, 5515 mSDsCounter, 0 mSdLazyCounter, 6241 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 3948 SdHoareTripleChecker+Invalid, 6445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 6241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:34,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1013 Valid, 3948 Invalid, 6445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 6241 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-01 17:50:34,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14878 states. [2022-03-01 17:50:34,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14878 to 8443. [2022-03-01 17:50:34,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8443 states, 8442 states have (on average 3.5405117270788913) internal successors, (29889), 8442 states have internal predecessors, (29889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8443 states to 8443 states and 29889 transitions. [2022-03-01 17:50:34,567 INFO L78 Accepts]: Start accepts. Automaton has 8443 states and 29889 transitions. Word has length 47 [2022-03-01 17:50:34,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:34,567 INFO L470 AbstractCegarLoop]: Abstraction has 8443 states and 29889 transitions. [2022-03-01 17:50:34,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:34,567 INFO L276 IsEmpty]: Start isEmpty. Operand 8443 states and 29889 transitions. [2022-03-01 17:50:34,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:34,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:34,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:34,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-01 17:50:34,581 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:34,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:34,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1163588059, now seen corresponding path program 198 times [2022-03-01 17:50:34,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:34,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830038418] [2022-03-01 17:50:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:34,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:34,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:34,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:34,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830038418] [2022-03-01 17:50:34,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830038418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:34,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:34,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:34,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577397454] [2022-03-01 17:50:34,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:34,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:34,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:34,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:34,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:34,812 INFO L87 Difference]: Start difference. First operand 8443 states and 29889 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:37,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:37,789 INFO L93 Difference]: Finished difference Result 12146 states and 42729 transitions. [2022-03-01 17:50:37,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-01 17:50:37,789 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:37,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:37,816 INFO L225 Difference]: With dead ends: 12146 [2022-03-01 17:50:37,816 INFO L226 Difference]: Without dead ends: 12019 [2022-03-01 17:50:37,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1484 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=474, Invalid=4782, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 17:50:37,817 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 666 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 5227 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 5308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 5227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:37,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [666 Valid, 2765 Invalid, 5308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 5227 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:50:37,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12019 states. [2022-03-01 17:50:38,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12019 to 8465. [2022-03-01 17:50:38,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8465 states, 8464 states have (on average 3.5388705103969755) internal successors, (29953), 8464 states have internal predecessors, (29953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:38,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8465 states to 8465 states and 29953 transitions. [2022-03-01 17:50:38,078 INFO L78 Accepts]: Start accepts. Automaton has 8465 states and 29953 transitions. Word has length 47 [2022-03-01 17:50:38,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:38,078 INFO L470 AbstractCegarLoop]: Abstraction has 8465 states and 29953 transitions. [2022-03-01 17:50:38,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:38,079 INFO L276 IsEmpty]: Start isEmpty. Operand 8465 states and 29953 transitions. [2022-03-01 17:50:38,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:38,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:38,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:38,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-01 17:50:38,092 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:38,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:38,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1304007977, now seen corresponding path program 199 times [2022-03-01 17:50:38,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:38,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034534335] [2022-03-01 17:50:38,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:38,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:38,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:38,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:38,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034534335] [2022-03-01 17:50:38,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034534335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:38,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:38,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:38,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473911740] [2022-03-01 17:50:38,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:38,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:38,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:38,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:38,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:38,327 INFO L87 Difference]: Start difference. First operand 8465 states and 29953 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:40,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:40,744 INFO L93 Difference]: Finished difference Result 11529 states and 40297 transitions. [2022-03-01 17:50:40,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 17:50:40,744 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:40,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:40,769 INFO L225 Difference]: With dead ends: 11529 [2022-03-01 17:50:40,769 INFO L226 Difference]: Without dead ends: 11432 [2022-03-01 17:50:40,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1227 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=418, Invalid=4138, Unknown=0, NotChecked=0, Total=4556 [2022-03-01 17:50:40,770 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 644 mSDsluCounter, 3609 mSDsCounter, 0 mSdLazyCounter, 4206 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 4275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:40,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 2320 Invalid, 4275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 4206 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:50:40,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11432 states. [2022-03-01 17:50:40,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11432 to 8483. [2022-03-01 17:50:40,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8483 states, 8482 states have (on average 3.536665880688517) internal successors, (29998), 8482 states have internal predecessors, (29998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:40,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8483 states to 8483 states and 29998 transitions. [2022-03-01 17:50:40,933 INFO L78 Accepts]: Start accepts. Automaton has 8483 states and 29998 transitions. Word has length 47 [2022-03-01 17:50:40,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:40,934 INFO L470 AbstractCegarLoop]: Abstraction has 8483 states and 29998 transitions. [2022-03-01 17:50:40,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:40,934 INFO L276 IsEmpty]: Start isEmpty. Operand 8483 states and 29998 transitions. [2022-03-01 17:50:40,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:40,948 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:40,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:40,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-01 17:50:40,948 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:40,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:40,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1301334151, now seen corresponding path program 200 times [2022-03-01 17:50:40,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:40,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986318897] [2022-03-01 17:50:40,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:40,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:41,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:41,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:41,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986318897] [2022-03-01 17:50:41,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986318897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:41,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:41,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:41,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061957893] [2022-03-01 17:50:41,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:41,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:41,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:41,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:41,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:41,230 INFO L87 Difference]: Start difference. First operand 8483 states and 29998 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:44,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:44,624 INFO L93 Difference]: Finished difference Result 12913 states and 45328 transitions. [2022-03-01 17:50:44,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-01 17:50:44,624 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:44,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:44,654 INFO L225 Difference]: With dead ends: 12913 [2022-03-01 17:50:44,654 INFO L226 Difference]: Without dead ends: 12804 [2022-03-01 17:50:44,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2973 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=802, Invalid=8318, Unknown=0, NotChecked=0, Total=9120 [2022-03-01 17:50:44,655 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 918 mSDsluCounter, 4332 mSDsCounter, 0 mSdLazyCounter, 5017 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 5179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 5017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:44,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 2952 Invalid, 5179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 5017 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:50:44,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12804 states. [2022-03-01 17:50:44,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12804 to 8465. [2022-03-01 17:50:44,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8465 states, 8464 states have (on average 3.5383979206049148) internal successors, (29949), 8464 states have internal predecessors, (29949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:44,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8465 states to 8465 states and 29949 transitions. [2022-03-01 17:50:44,875 INFO L78 Accepts]: Start accepts. Automaton has 8465 states and 29949 transitions. Word has length 47 [2022-03-01 17:50:44,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:44,875 INFO L470 AbstractCegarLoop]: Abstraction has 8465 states and 29949 transitions. [2022-03-01 17:50:44,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:44,875 INFO L276 IsEmpty]: Start isEmpty. Operand 8465 states and 29949 transitions. [2022-03-01 17:50:44,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:44,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:44,889 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:44,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-01 17:50:44,889 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:44,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:44,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1685161473, now seen corresponding path program 201 times [2022-03-01 17:50:44,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:44,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97104068] [2022-03-01 17:50:44,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:44,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:45,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:45,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97104068] [2022-03-01 17:50:45,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97104068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:45,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:45,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:45,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870981170] [2022-03-01 17:50:45,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:45,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:45,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:45,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:45,126 INFO L87 Difference]: Start difference. First operand 8465 states and 29949 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:47,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:47,938 INFO L93 Difference]: Finished difference Result 11858 states and 41518 transitions. [2022-03-01 17:50:47,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-01 17:50:47,938 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:47,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:47,964 INFO L225 Difference]: With dead ends: 11858 [2022-03-01 17:50:47,964 INFO L226 Difference]: Without dead ends: 11737 [2022-03-01 17:50:47,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1939 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=575, Invalid=5905, Unknown=0, NotChecked=0, Total=6480 [2022-03-01 17:50:47,965 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 765 mSDsluCounter, 3938 mSDsCounter, 0 mSdLazyCounter, 4720 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 4827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:47,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [765 Valid, 2660 Invalid, 4827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 4720 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-01 17:50:47,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11737 states. [2022-03-01 17:50:48,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11737 to 8465. [2022-03-01 17:50:48,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8465 states, 8464 states have (on average 3.5383979206049148) internal successors, (29949), 8464 states have internal predecessors, (29949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:48,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8465 states to 8465 states and 29949 transitions. [2022-03-01 17:50:48,179 INFO L78 Accepts]: Start accepts. Automaton has 8465 states and 29949 transitions. Word has length 47 [2022-03-01 17:50:48,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:48,179 INFO L470 AbstractCegarLoop]: Abstraction has 8465 states and 29949 transitions. [2022-03-01 17:50:48,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:48,179 INFO L276 IsEmpty]: Start isEmpty. Operand 8465 states and 29949 transitions. [2022-03-01 17:50:48,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:48,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:48,193 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:48,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-01 17:50:48,193 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:48,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:48,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1038384387, now seen corresponding path program 202 times [2022-03-01 17:50:48,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:48,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493943528] [2022-03-01 17:50:48,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:48,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:48,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:48,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:48,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493943528] [2022-03-01 17:50:48,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493943528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:48,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:48,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:48,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365212888] [2022-03-01 17:50:48,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:48,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:48,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:48,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:48,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:48,425 INFO L87 Difference]: Start difference. First operand 8465 states and 29949 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:53,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:53,699 INFO L93 Difference]: Finished difference Result 16389 states and 57802 transitions. [2022-03-01 17:50:53,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-01 17:50:53,699 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:53,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:53,737 INFO L225 Difference]: With dead ends: 16389 [2022-03-01 17:50:53,737 INFO L226 Difference]: Without dead ends: 16064 [2022-03-01 17:50:53,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6699 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1229, Invalid=16861, Unknown=0, NotChecked=0, Total=18090 [2022-03-01 17:50:53,738 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 971 mSDsluCounter, 6220 mSDsCounter, 0 mSdLazyCounter, 7463 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 4401 SdHoareTripleChecker+Invalid, 7669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 7463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:53,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [971 Valid, 4401 Invalid, 7669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 7463 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-01 17:50:53,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16064 states. [2022-03-01 17:50:53,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16064 to 8454. [2022-03-01 17:50:53,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8454 states, 8453 states have (on average 3.5374423281675145) internal successors, (29902), 8453 states have internal predecessors, (29902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8454 states to 8454 states and 29902 transitions. [2022-03-01 17:50:53,930 INFO L78 Accepts]: Start accepts. Automaton has 8454 states and 29902 transitions. Word has length 47 [2022-03-01 17:50:53,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:53,930 INFO L470 AbstractCegarLoop]: Abstraction has 8454 states and 29902 transitions. [2022-03-01 17:50:53,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:53,931 INFO L276 IsEmpty]: Start isEmpty. Operand 8454 states and 29902 transitions. [2022-03-01 17:50:53,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:53,944 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:53,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:53,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-01 17:50:53,944 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:53,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:53,944 INFO L85 PathProgramCache]: Analyzing trace with hash -739492709, now seen corresponding path program 203 times [2022-03-01 17:50:53,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:53,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883668165] [2022-03-01 17:50:53,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:53,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:54,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:54,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883668165] [2022-03-01 17:50:54,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883668165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:54,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:54,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:54,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371621328] [2022-03-01 17:50:54,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:54,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:54,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:54,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:54,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:54,177 INFO L87 Difference]: Start difference. First operand 8454 states and 29902 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:56,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:50:56,608 INFO L93 Difference]: Finished difference Result 11514 states and 40231 transitions. [2022-03-01 17:50:56,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-01 17:50:56,609 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:50:56,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:50:56,633 INFO L225 Difference]: With dead ends: 11514 [2022-03-01 17:50:56,634 INFO L226 Difference]: Without dead ends: 11417 [2022-03-01 17:50:56,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=437, Invalid=4255, Unknown=0, NotChecked=0, Total=4692 [2022-03-01 17:50:56,634 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 660 mSDsluCounter, 3553 mSDsCounter, 0 mSdLazyCounter, 4176 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 2298 SdHoareTripleChecker+Invalid, 4248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 4176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:50:56,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 2298 Invalid, 4248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 4176 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-01 17:50:56,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11417 states. [2022-03-01 17:50:56,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11417 to 8462. [2022-03-01 17:50:56,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8462 states, 8461 states have (on average 3.536225032502068) internal successors, (29920), 8461 states have internal predecessors, (29920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:56,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8462 states to 8462 states and 29920 transitions. [2022-03-01 17:50:56,791 INFO L78 Accepts]: Start accepts. Automaton has 8462 states and 29920 transitions. Word has length 47 [2022-03-01 17:50:56,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:50:56,791 INFO L470 AbstractCegarLoop]: Abstraction has 8462 states and 29920 transitions. [2022-03-01 17:50:56,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:50:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 8462 states and 29920 transitions. [2022-03-01 17:50:56,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:50:56,805 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:50:56,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:50:56,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-01 17:50:56,805 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:50:56,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:50:56,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1830054077, now seen corresponding path program 204 times [2022-03-01 17:50:56,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:50:56,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198123308] [2022-03-01 17:50:56,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:50:56,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:50:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:50:57,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:50:57,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:50:57,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198123308] [2022-03-01 17:50:57,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198123308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:50:57,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:50:57,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:50:57,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104291261] [2022-03-01 17:50:57,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:50:57,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:50:57,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:50:57,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:50:57,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:50:57,033 INFO L87 Difference]: Start difference. First operand 8462 states and 29920 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:02,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:02,297 INFO L93 Difference]: Finished difference Result 15670 states and 54941 transitions. [2022-03-01 17:51:02,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-03-01 17:51:02,298 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:02,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:02,333 INFO L225 Difference]: With dead ends: 15670 [2022-03-01 17:51:02,334 INFO L226 Difference]: Without dead ends: 15446 [2022-03-01 17:51:02,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6875 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1434, Invalid=17198, Unknown=0, NotChecked=0, Total=18632 [2022-03-01 17:51:02,336 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 1166 mSDsluCounter, 6181 mSDsCounter, 0 mSdLazyCounter, 7008 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 7313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 7008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:02,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1166 Valid, 4126 Invalid, 7313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 7008 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-01 17:51:02,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15446 states. [2022-03-01 17:51:02,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15446 to 8467. [2022-03-01 17:51:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8467 states, 8466 states have (on average 3.538743208126624) internal successors, (29959), 8466 states have internal predecessors, (29959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:02,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8467 states to 8467 states and 29959 transitions. [2022-03-01 17:51:02,560 INFO L78 Accepts]: Start accepts. Automaton has 8467 states and 29959 transitions. Word has length 47 [2022-03-01 17:51:02,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:02,561 INFO L470 AbstractCegarLoop]: Abstraction has 8467 states and 29959 transitions. [2022-03-01 17:51:02,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:02,561 INFO L276 IsEmpty]: Start isEmpty. Operand 8467 states and 29959 transitions. [2022-03-01 17:51:02,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:02,574 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:02,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:02,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-01 17:51:02,575 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:02,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:02,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1211220069, now seen corresponding path program 205 times [2022-03-01 17:51:02,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:02,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54978759] [2022-03-01 17:51:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:02,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:02,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:02,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:02,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54978759] [2022-03-01 17:51:02,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54978759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:02,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:02,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:51:02,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398060388] [2022-03-01 17:51:02,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:02,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:51:02,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:02,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:51:02,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:51:02,807 INFO L87 Difference]: Start difference. First operand 8467 states and 29959 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:05,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:05,703 INFO L93 Difference]: Finished difference Result 12382 states and 43733 transitions. [2022-03-01 17:51:05,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-01 17:51:05,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:05,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:05,793 INFO L225 Difference]: With dead ends: 12382 [2022-03-01 17:51:05,793 INFO L226 Difference]: Without dead ends: 12282 [2022-03-01 17:51:05,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1496 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=472, Invalid=4784, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 17:51:05,793 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 723 mSDsluCounter, 4513 mSDsCounter, 0 mSdLazyCounter, 5196 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 5301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 5196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:05,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [723 Valid, 3137 Invalid, 5301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 5196 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:51:05,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12282 states. [2022-03-01 17:51:05,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12282 to 8476. [2022-03-01 17:51:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8476 states, 8475 states have (on average 3.537581120943953) internal successors, (29981), 8475 states have internal predecessors, (29981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 29981 transitions. [2022-03-01 17:51:05,957 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 29981 transitions. Word has length 47 [2022-03-01 17:51:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:05,958 INFO L470 AbstractCegarLoop]: Abstraction has 8476 states and 29981 transitions. [2022-03-01 17:51:05,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:05,958 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 29981 transitions. [2022-03-01 17:51:05,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:05,972 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:05,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:05,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-01 17:51:05,972 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:05,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:05,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1648679737, now seen corresponding path program 206 times [2022-03-01 17:51:05,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:05,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215733562] [2022-03-01 17:51:05,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:05,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:06,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:06,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215733562] [2022-03-01 17:51:06,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215733562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:06,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:06,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:51:06,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447796253] [2022-03-01 17:51:06,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:06,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:51:06,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:06,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:51:06,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:51:06,220 INFO L87 Difference]: Start difference. First operand 8476 states and 29981 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:09,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:09,358 INFO L93 Difference]: Finished difference Result 12162 states and 42429 transitions. [2022-03-01 17:51:09,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-01 17:51:09,359 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:09,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:09,385 INFO L225 Difference]: With dead ends: 12162 [2022-03-01 17:51:09,386 INFO L226 Difference]: Without dead ends: 12044 [2022-03-01 17:51:09,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1756 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=562, Invalid=5444, Unknown=0, NotChecked=0, Total=6006 [2022-03-01 17:51:09,386 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 763 mSDsluCounter, 4404 mSDsCounter, 0 mSdLazyCounter, 5165 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 5276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 5165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:09,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 3089 Invalid, 5276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 5165 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-01 17:51:09,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12044 states. [2022-03-01 17:51:09,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12044 to 8476. [2022-03-01 17:51:09,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8476 states, 8475 states have (on average 3.5368731563421827) internal successors, (29975), 8475 states have internal predecessors, (29975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:09,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 29975 transitions. [2022-03-01 17:51:09,546 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 29975 transitions. Word has length 47 [2022-03-01 17:51:09,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:09,547 INFO L470 AbstractCegarLoop]: Abstraction has 8476 states and 29975 transitions. [2022-03-01 17:51:09,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:09,547 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 29975 transitions. [2022-03-01 17:51:09,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:09,561 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:09,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:09,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-01 17:51:09,562 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:09,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:09,562 INFO L85 PathProgramCache]: Analyzing trace with hash -159438731, now seen corresponding path program 207 times [2022-03-01 17:51:09,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:09,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349053522] [2022-03-01 17:51:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:09,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:09,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:09,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349053522] [2022-03-01 17:51:09,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349053522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:09,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:09,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:51:09,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371894704] [2022-03-01 17:51:09,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:09,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:51:09,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:09,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:51:09,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:51:09,797 INFO L87 Difference]: Start difference. First operand 8476 states and 29975 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:12,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:12,341 INFO L93 Difference]: Finished difference Result 11549 states and 40496 transitions. [2022-03-01 17:51:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-01 17:51:12,342 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:12,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:12,368 INFO L225 Difference]: With dead ends: 11549 [2022-03-01 17:51:12,368 INFO L226 Difference]: Without dead ends: 11452 [2022-03-01 17:51:12,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=412, Invalid=4144, Unknown=0, NotChecked=0, Total=4556 [2022-03-01 17:51:12,369 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 633 mSDsluCounter, 3867 mSDsCounter, 0 mSdLazyCounter, 4456 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 4527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 4456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:12,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [633 Valid, 2558 Invalid, 4527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 4456 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-01 17:51:12,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11452 states. [2022-03-01 17:51:12,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11452 to 8482. [2022-03-01 17:51:12,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8482 states, 8481 states have (on average 3.5361396061785166) internal successors, (29990), 8481 states have internal predecessors, (29990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:12,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8482 states to 8482 states and 29990 transitions. [2022-03-01 17:51:12,554 INFO L78 Accepts]: Start accepts. Automaton has 8482 states and 29990 transitions. Word has length 47 [2022-03-01 17:51:12,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:12,554 INFO L470 AbstractCegarLoop]: Abstraction has 8482 states and 29990 transitions. [2022-03-01 17:51:12,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:12,554 INFO L276 IsEmpty]: Start isEmpty. Operand 8482 states and 29990 transitions. [2022-03-01 17:51:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:12,568 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:12,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:12,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-01 17:51:12,569 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:12,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:12,569 INFO L85 PathProgramCache]: Analyzing trace with hash -156764905, now seen corresponding path program 208 times [2022-03-01 17:51:12,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:12,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821020207] [2022-03-01 17:51:12,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:12,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:12,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:12,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821020207] [2022-03-01 17:51:12,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821020207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:12,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:12,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:51:12,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229273179] [2022-03-01 17:51:12,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:12,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:51:12,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:12,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:51:12,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:51:12,806 INFO L87 Difference]: Start difference. First operand 8482 states and 29990 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:15,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:15,933 INFO L93 Difference]: Finished difference Result 12691 states and 44663 transitions. [2022-03-01 17:51:15,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-01 17:51:15,933 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:15,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:15,962 INFO L225 Difference]: With dead ends: 12691 [2022-03-01 17:51:15,962 INFO L226 Difference]: Without dead ends: 12582 [2022-03-01 17:51:15,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2059 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=624, Invalid=6182, Unknown=0, NotChecked=0, Total=6806 [2022-03-01 17:51:15,963 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 838 mSDsluCounter, 4394 mSDsCounter, 0 mSdLazyCounter, 5097 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 5230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 5097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:15,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [838 Valid, 3073 Invalid, 5230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 5097 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:51:15,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12582 states. [2022-03-01 17:51:16,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12582 to 8464. [2022-03-01 17:51:16,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8464 states, 8463 states have (on average 3.5376344086021505) internal successors, (29939), 8463 states have internal predecessors, (29939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 29939 transitions. [2022-03-01 17:51:16,128 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 29939 transitions. Word has length 47 [2022-03-01 17:51:16,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:16,128 INFO L470 AbstractCegarLoop]: Abstraction has 8464 states and 29939 transitions. [2022-03-01 17:51:16,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:16,128 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 29939 transitions. [2022-03-01 17:51:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:16,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:16,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:16,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-01 17:51:16,142 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:16,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:16,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1413928267, now seen corresponding path program 209 times [2022-03-01 17:51:16,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:16,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41520588] [2022-03-01 17:51:16,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:16,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:16,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:16,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:16,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41520588] [2022-03-01 17:51:16,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41520588] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:16,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:16,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:51:16,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039978041] [2022-03-01 17:51:16,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:16,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:51:16,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:16,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:51:16,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:51:16,366 INFO L87 Difference]: Start difference. First operand 8464 states and 29939 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:19,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:19,992 INFO L93 Difference]: Finished difference Result 13706 states and 48281 transitions. [2022-03-01 17:51:19,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-03-01 17:51:19,992 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:19,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:20,024 INFO L225 Difference]: With dead ends: 13706 [2022-03-01 17:51:20,024 INFO L226 Difference]: Without dead ends: 13606 [2022-03-01 17:51:20,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2804 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=787, Invalid=7769, Unknown=0, NotChecked=0, Total=8556 [2022-03-01 17:51:20,025 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 806 mSDsluCounter, 4471 mSDsCounter, 0 mSdLazyCounter, 5235 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 5375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 5235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:20,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [806 Valid, 3279 Invalid, 5375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 5235 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:51:20,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13606 states. [2022-03-01 17:51:20,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13606 to 8464. [2022-03-01 17:51:20,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8464 states, 8463 states have (on average 3.5376344086021505) internal successors, (29939), 8463 states have internal predecessors, (29939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:20,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 29939 transitions. [2022-03-01 17:51:20,187 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 29939 transitions. Word has length 47 [2022-03-01 17:51:20,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:20,187 INFO L470 AbstractCegarLoop]: Abstraction has 8464 states and 29939 transitions. [2022-03-01 17:51:20,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:20,187 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 29939 transitions. [2022-03-01 17:51:20,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:20,201 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:20,201 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:20,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-01 17:51:20,201 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:20,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:20,201 INFO L85 PathProgramCache]: Analyzing trace with hash 961200919, now seen corresponding path program 210 times [2022-03-01 17:51:20,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:20,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520301633] [2022-03-01 17:51:20,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:20,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:20,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:20,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:20,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520301633] [2022-03-01 17:51:20,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520301633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:20,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:20,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:51:20,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979463754] [2022-03-01 17:51:20,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:20,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:51:20,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:20,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:51:20,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:51:20,445 INFO L87 Difference]: Start difference. First operand 8464 states and 29939 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:24,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:24,241 INFO L93 Difference]: Finished difference Result 13713 states and 48385 transitions. [2022-03-01 17:51:24,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-01 17:51:24,242 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:24,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:24,273 INFO L225 Difference]: With dead ends: 13713 [2022-03-01 17:51:24,273 INFO L226 Difference]: Without dead ends: 13607 [2022-03-01 17:51:24,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3398 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=914, Invalid=9186, Unknown=0, NotChecked=0, Total=10100 [2022-03-01 17:51:24,274 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 796 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 5307 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 5435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 5307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:24,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [796 Valid, 3405 Invalid, 5435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 5307 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-01 17:51:24,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13607 states. [2022-03-01 17:51:24,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13607 to 8464. [2022-03-01 17:51:24,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8464 states, 8463 states have (on average 3.5376344086021505) internal successors, (29939), 8463 states have internal predecessors, (29939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:24,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 29939 transitions. [2022-03-01 17:51:24,447 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 29939 transitions. Word has length 47 [2022-03-01 17:51:24,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:24,447 INFO L470 AbstractCegarLoop]: Abstraction has 8464 states and 29939 transitions. [2022-03-01 17:51:24,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:24,447 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 29939 transitions. [2022-03-01 17:51:24,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:24,462 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:24,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:24,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-01 17:51:24,462 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:24,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:24,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1155618519, now seen corresponding path program 211 times [2022-03-01 17:51:24,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:24,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161066131] [2022-03-01 17:51:24,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:24,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:24,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:24,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:24,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161066131] [2022-03-01 17:51:24,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161066131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:24,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:24,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:51:24,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552636778] [2022-03-01 17:51:24,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:24,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:51:24,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:24,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:51:24,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:51:24,694 INFO L87 Difference]: Start difference. First operand 8464 states and 29939 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:28,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:28,799 INFO L93 Difference]: Finished difference Result 14165 states and 50052 transitions. [2022-03-01 17:51:28,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-03-01 17:51:28,799 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:28,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:28,831 INFO L225 Difference]: With dead ends: 14165 [2022-03-01 17:51:28,831 INFO L226 Difference]: Without dead ends: 14065 [2022-03-01 17:51:28,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3266 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=863, Invalid=9037, Unknown=0, NotChecked=0, Total=9900 [2022-03-01 17:51:28,832 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 937 mSDsluCounter, 5351 mSDsCounter, 0 mSdLazyCounter, 6217 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 3895 SdHoareTripleChecker+Invalid, 6386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 6217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:28,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 3895 Invalid, 6386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 6217 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-01 17:51:28,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14065 states. [2022-03-01 17:51:28,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14065 to 8470. [2022-03-01 17:51:28,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8470 states, 8469 states have (on average 3.5376077458968003) internal successors, (29960), 8469 states have internal predecessors, (29960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:29,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 29960 transitions. [2022-03-01 17:51:29,004 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 29960 transitions. Word has length 47 [2022-03-01 17:51:29,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:29,004 INFO L470 AbstractCegarLoop]: Abstraction has 8470 states and 29960 transitions. [2022-03-01 17:51:29,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:29,004 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 29960 transitions. [2022-03-01 17:51:29,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:29,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:29,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:29,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-01 17:51:29,018 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:29,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:29,019 INFO L85 PathProgramCache]: Analyzing trace with hash 612735575, now seen corresponding path program 212 times [2022-03-01 17:51:29,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:29,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447667514] [2022-03-01 17:51:29,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:29,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:29,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:29,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:29,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447667514] [2022-03-01 17:51:29,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447667514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:29,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:29,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:51:29,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869762844] [2022-03-01 17:51:29,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:29,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:51:29,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:29,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:51:29,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:51:29,267 INFO L87 Difference]: Start difference. First operand 8470 states and 29960 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:32,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:32,630 INFO L93 Difference]: Finished difference Result 13188 states and 46503 transitions. [2022-03-01 17:51:32,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-01 17:51:32,630 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:32,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:32,659 INFO L225 Difference]: With dead ends: 13188 [2022-03-01 17:51:32,659 INFO L226 Difference]: Without dead ends: 13088 [2022-03-01 17:51:32,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2375 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=693, Invalid=6963, Unknown=0, NotChecked=0, Total=7656 [2022-03-01 17:51:32,660 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 833 mSDsluCounter, 4774 mSDsCounter, 0 mSdLazyCounter, 5536 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 5668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 5536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:32,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [833 Valid, 3434 Invalid, 5668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 5536 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-01 17:51:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13088 states. [2022-03-01 17:51:32,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13088 to 8470. [2022-03-01 17:51:32,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8470 states, 8469 states have (on average 3.53725351281143) internal successors, (29957), 8469 states have internal predecessors, (29957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:32,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 29957 transitions. [2022-03-01 17:51:32,819 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 29957 transitions. Word has length 47 [2022-03-01 17:51:32,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:32,820 INFO L470 AbstractCegarLoop]: Abstraction has 8470 states and 29957 transitions. [2022-03-01 17:51:32,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:32,820 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 29957 transitions. [2022-03-01 17:51:32,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:32,833 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:32,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:32,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-01 17:51:32,834 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:32,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:32,834 INFO L85 PathProgramCache]: Analyzing trace with hash 895138361, now seen corresponding path program 213 times [2022-03-01 17:51:32,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:32,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179192877] [2022-03-01 17:51:32,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:32,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:33,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:33,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179192877] [2022-03-01 17:51:33,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179192877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:33,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:33,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:51:33,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184892563] [2022-03-01 17:51:33,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:33,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:51:33,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:33,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:51:33,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:51:33,066 INFO L87 Difference]: Start difference. First operand 8470 states and 29957 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:37,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:37,232 INFO L93 Difference]: Finished difference Result 13839 states and 48810 transitions. [2022-03-01 17:51:37,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-03-01 17:51:37,232 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:37,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:37,268 INFO L225 Difference]: With dead ends: 13839 [2022-03-01 17:51:37,269 INFO L226 Difference]: Without dead ends: 13742 [2022-03-01 17:51:37,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3834 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=985, Invalid=10357, Unknown=0, NotChecked=0, Total=11342 [2022-03-01 17:51:37,270 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 889 mSDsluCounter, 5347 mSDsCounter, 0 mSdLazyCounter, 6159 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 3920 SdHoareTripleChecker+Invalid, 6302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 6159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:37,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [889 Valid, 3920 Invalid, 6302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 6159 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-01 17:51:37,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13742 states. [2022-03-01 17:51:37,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13742 to 8476. [2022-03-01 17:51:37,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8476 states, 8475 states have (on average 3.536519174041298) internal successors, (29972), 8475 states have internal predecessors, (29972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:37,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 29972 transitions. [2022-03-01 17:51:37,450 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 29972 transitions. Word has length 47 [2022-03-01 17:51:37,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:37,451 INFO L470 AbstractCegarLoop]: Abstraction has 8476 states and 29972 transitions. [2022-03-01 17:51:37,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:37,451 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 29972 transitions. [2022-03-01 17:51:37,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:37,465 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:37,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:37,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-01 17:51:37,465 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:37,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:37,465 INFO L85 PathProgramCache]: Analyzing trace with hash 978026967, now seen corresponding path program 214 times [2022-03-01 17:51:37,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:37,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080447380] [2022-03-01 17:51:37,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:37,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:37,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:37,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:37,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080447380] [2022-03-01 17:51:37,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080447380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:37,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:37,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:51:37,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425558409] [2022-03-01 17:51:37,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:37,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:51:37,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:37,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:51:37,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:51:37,710 INFO L87 Difference]: Start difference. First operand 8476 states and 29972 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:41,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:41,272 INFO L93 Difference]: Finished difference Result 13196 states and 46675 transitions. [2022-03-01 17:51:41,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-01 17:51:41,273 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:41,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:41,303 INFO L225 Difference]: With dead ends: 13196 [2022-03-01 17:51:41,303 INFO L226 Difference]: Without dead ends: 13090 [2022-03-01 17:51:41,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2638 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=778, Invalid=7594, Unknown=0, NotChecked=0, Total=8372 [2022-03-01 17:51:41,303 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 811 mSDsluCounter, 4740 mSDsCounter, 0 mSdLazyCounter, 5654 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 5785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 5654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:41,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 3578 Invalid, 5785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 5654 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-01 17:51:41,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13090 states. [2022-03-01 17:51:41,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13090 to 8461. [2022-03-01 17:51:41,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8461 states, 8460 states have (on average 3.5386524822695034) internal successors, (29937), 8460 states have internal predecessors, (29937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:41,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8461 states to 8461 states and 29937 transitions. [2022-03-01 17:51:41,470 INFO L78 Accepts]: Start accepts. Automaton has 8461 states and 29937 transitions. Word has length 47 [2022-03-01 17:51:41,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:41,470 INFO L470 AbstractCegarLoop]: Abstraction has 8461 states and 29937 transitions. [2022-03-01 17:51:41,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:41,470 INFO L276 IsEmpty]: Start isEmpty. Operand 8461 states and 29937 transitions. [2022-03-01 17:51:41,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:41,484 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:41,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:41,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-01 17:51:41,484 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:41,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:41,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1916708353, now seen corresponding path program 215 times [2022-03-01 17:51:41,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:41,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109148066] [2022-03-01 17:51:41,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:41,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:41,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:41,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:41,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109148066] [2022-03-01 17:51:41,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109148066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:41,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:41,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:51:41,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47429548] [2022-03-01 17:51:41,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:41,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:51:41,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:41,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:51:41,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:51:41,718 INFO L87 Difference]: Start difference. First operand 8461 states and 29937 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:47,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:47,346 INFO L93 Difference]: Finished difference Result 18918 states and 66580 transitions. [2022-03-01 17:51:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2022-03-01 17:51:47,346 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:47,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:47,389 INFO L225 Difference]: With dead ends: 18918 [2022-03-01 17:51:47,389 INFO L226 Difference]: Without dead ends: 18520 [2022-03-01 17:51:47,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8267 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1605, Invalid=20151, Unknown=0, NotChecked=0, Total=21756 [2022-03-01 17:51:47,391 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1364 mSDsluCounter, 6850 mSDsCounter, 0 mSdLazyCounter, 7704 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 4758 SdHoareTripleChecker+Invalid, 8094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 7704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:47,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1364 Valid, 4758 Invalid, 8094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 7704 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-01 17:51:47,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18520 states. [2022-03-01 17:51:47,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18520 to 8861. [2022-03-01 17:51:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8861 states, 8860 states have (on average 3.550338600451467) internal successors, (31456), 8860 states have internal predecessors, (31456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:47,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8861 states to 8861 states and 31456 transitions. [2022-03-01 17:51:47,608 INFO L78 Accepts]: Start accepts. Automaton has 8861 states and 31456 transitions. Word has length 47 [2022-03-01 17:51:47,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:47,608 INFO L470 AbstractCegarLoop]: Abstraction has 8861 states and 31456 transitions. [2022-03-01 17:51:47,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:47,609 INFO L276 IsEmpty]: Start isEmpty. Operand 8861 states and 31456 transitions. [2022-03-01 17:51:47,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:47,623 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:47,623 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:47,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-01 17:51:47,623 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:47,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:47,623 INFO L85 PathProgramCache]: Analyzing trace with hash -195913121, now seen corresponding path program 216 times [2022-03-01 17:51:47,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:47,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678458445] [2022-03-01 17:51:47,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:47,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:47,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:47,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678458445] [2022-03-01 17:51:47,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678458445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:47,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:47,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:51:47,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631263096] [2022-03-01 17:51:47,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:47,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:51:47,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:47,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:51:47,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:51:47,856 INFO L87 Difference]: Start difference. First operand 8861 states and 31456 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:54,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:51:54,154 INFO L93 Difference]: Finished difference Result 19219 states and 67529 transitions. [2022-03-01 17:51:54,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-03-01 17:51:54,154 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:51:54,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:51:54,202 INFO L225 Difference]: With dead ends: 19219 [2022-03-01 17:51:54,202 INFO L226 Difference]: Without dead ends: 18578 [2022-03-01 17:51:54,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10252 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1892, Invalid=24514, Unknown=0, NotChecked=0, Total=26406 [2022-03-01 17:51:54,203 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1512 mSDsluCounter, 6967 mSDsCounter, 0 mSdLazyCounter, 7873 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 4969 SdHoareTripleChecker+Invalid, 8284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 7873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:51:54,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1512 Valid, 4969 Invalid, 8284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 7873 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-01 17:51:54,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18578 states. [2022-03-01 17:51:54,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18578 to 9098. [2022-03-01 17:51:54,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9098 states, 9097 states have (on average 3.553369242607453) internal successors, (32325), 9097 states have internal predecessors, (32325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:54,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9098 states to 9098 states and 32325 transitions. [2022-03-01 17:51:54,414 INFO L78 Accepts]: Start accepts. Automaton has 9098 states and 32325 transitions. Word has length 47 [2022-03-01 17:51:54,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:51:54,414 INFO L470 AbstractCegarLoop]: Abstraction has 9098 states and 32325 transitions. [2022-03-01 17:51:54,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:51:54,414 INFO L276 IsEmpty]: Start isEmpty. Operand 9098 states and 32325 transitions. [2022-03-01 17:51:54,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:51:54,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:51:54,428 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:51:54,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-01 17:51:54,428 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:51:54,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:51:54,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2082893471, now seen corresponding path program 217 times [2022-03-01 17:51:54,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:51:54,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439012373] [2022-03-01 17:51:54,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:51:54,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:51:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:51:54,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:51:54,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:51:54,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439012373] [2022-03-01 17:51:54,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439012373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:51:54,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:51:54,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:51:54,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968216457] [2022-03-01 17:51:54,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:51:54,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:51:54,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:51:54,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:51:54,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:51:54,659 INFO L87 Difference]: Start difference. First operand 9098 states and 32325 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:00,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:00,714 INFO L93 Difference]: Finished difference Result 21701 states and 76586 transitions. [2022-03-01 17:52:00,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-03-01 17:52:00,714 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:52:00,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:00,764 INFO L225 Difference]: With dead ends: 21701 [2022-03-01 17:52:00,764 INFO L226 Difference]: Without dead ends: 21223 [2022-03-01 17:52:00,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9037 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1648, Invalid=21914, Unknown=0, NotChecked=0, Total=23562 [2022-03-01 17:52:00,766 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1483 mSDsluCounter, 6934 mSDsCounter, 0 mSdLazyCounter, 7885 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 4765 SdHoareTripleChecker+Invalid, 8380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 7885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:00,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 4765 Invalid, 8380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 7885 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-01 17:52:00,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21223 states. [2022-03-01 17:52:00,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21223 to 9359. [2022-03-01 17:52:00,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9359 states, 9358 states have (on average 3.5555674289378074) internal successors, (33273), 9358 states have internal predecessors, (33273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:01,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9359 states to 9359 states and 33273 transitions. [2022-03-01 17:52:01,017 INFO L78 Accepts]: Start accepts. Automaton has 9359 states and 33273 transitions. Word has length 47 [2022-03-01 17:52:01,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:01,017 INFO L470 AbstractCegarLoop]: Abstraction has 9359 states and 33273 transitions. [2022-03-01 17:52:01,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand 9359 states and 33273 transitions. [2022-03-01 17:52:01,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:52:01,033 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:01,033 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:01,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-01 17:52:01,033 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:52:01,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:01,034 INFO L85 PathProgramCache]: Analyzing trace with hash -959811685, now seen corresponding path program 218 times [2022-03-01 17:52:01,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:01,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727938142] [2022-03-01 17:52:01,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:01,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:01,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:01,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:01,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727938142] [2022-03-01 17:52:01,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727938142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:01,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:01,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:52:01,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350937858] [2022-03-01 17:52:01,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:01,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:52:01,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:01,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:52:01,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:52:01,266 INFO L87 Difference]: Start difference. First operand 9359 states and 33273 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:05,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:05,965 INFO L93 Difference]: Finished difference Result 19224 states and 68517 transitions. [2022-03-01 17:52:05,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-01 17:52:05,965 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:52:05,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:06,019 INFO L225 Difference]: With dead ends: 19224 [2022-03-01 17:52:06,019 INFO L226 Difference]: Without dead ends: 19124 [2022-03-01 17:52:06,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4973 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1059, Invalid=12983, Unknown=0, NotChecked=0, Total=14042 [2022-03-01 17:52:06,021 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1209 mSDsluCounter, 6041 mSDsCounter, 0 mSdLazyCounter, 6927 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 4364 SdHoareTripleChecker+Invalid, 7186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 6927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:06,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1209 Valid, 4364 Invalid, 7186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 6927 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-01 17:52:06,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19124 states. [2022-03-01 17:52:06,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19124 to 9553. [2022-03-01 17:52:06,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9553 states, 9552 states have (on average 3.5583123953098825) internal successors, (33989), 9552 states have internal predecessors, (33989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:06,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9553 states to 9553 states and 33989 transitions. [2022-03-01 17:52:06,348 INFO L78 Accepts]: Start accepts. Automaton has 9553 states and 33989 transitions. Word has length 47 [2022-03-01 17:52:06,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:06,348 INFO L470 AbstractCegarLoop]: Abstraction has 9553 states and 33989 transitions. [2022-03-01 17:52:06,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:06,349 INFO L276 IsEmpty]: Start isEmpty. Operand 9553 states and 33989 transitions. [2022-03-01 17:52:06,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:52:06,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:06,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:06,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-01 17:52:06,366 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:52:06,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:06,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1025874243, now seen corresponding path program 219 times [2022-03-01 17:52:06,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:06,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265844219] [2022-03-01 17:52:06,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:06,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:06,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:06,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:06,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265844219] [2022-03-01 17:52:06,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265844219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:06,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:06,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:52:06,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920811148] [2022-03-01 17:52:06,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:06,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:52:06,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:06,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:52:06,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:52:06,606 INFO L87 Difference]: Start difference. First operand 9553 states and 33989 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:13,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:13,151 INFO L93 Difference]: Finished difference Result 22955 states and 81467 transitions. [2022-03-01 17:52:13,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-03-01 17:52:13,152 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:52:13,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:13,204 INFO L225 Difference]: With dead ends: 22955 [2022-03-01 17:52:13,205 INFO L226 Difference]: Without dead ends: 22705 [2022-03-01 17:52:13,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9440 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1670, Invalid=22822, Unknown=0, NotChecked=0, Total=24492 [2022-03-01 17:52:13,206 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1417 mSDsluCounter, 7780 mSDsCounter, 0 mSdLazyCounter, 9202 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 5485 SdHoareTripleChecker+Invalid, 9560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 9202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:13,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1417 Valid, 5485 Invalid, 9560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 9202 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-01 17:52:13,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22705 states. [2022-03-01 17:52:13,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22705 to 9570. [2022-03-01 17:52:13,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9570 states, 9569 states have (on average 3.558992580206918) internal successors, (34056), 9569 states have internal predecessors, (34056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:13,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9570 states to 9570 states and 34056 transitions. [2022-03-01 17:52:13,458 INFO L78 Accepts]: Start accepts. Automaton has 9570 states and 34056 transitions. Word has length 47 [2022-03-01 17:52:13,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:13,458 INFO L470 AbstractCegarLoop]: Abstraction has 9570 states and 34056 transitions. [2022-03-01 17:52:13,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:13,458 INFO L276 IsEmpty]: Start isEmpty. Operand 9570 states and 34056 transitions. [2022-03-01 17:52:13,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:52:13,474 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:13,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:13,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-01 17:52:13,475 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:52:13,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:13,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1170556931, now seen corresponding path program 220 times [2022-03-01 17:52:13,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:13,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355189709] [2022-03-01 17:52:13,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:13,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:13,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:13,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355189709] [2022-03-01 17:52:13,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355189709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:13,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:13,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:52:13,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571741918] [2022-03-01 17:52:13,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:13,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:52:13,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:13,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:52:13,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:52:13,712 INFO L87 Difference]: Start difference. First operand 9570 states and 34056 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:20,612 INFO L93 Difference]: Finished difference Result 20403 states and 72081 transitions. [2022-03-01 17:52:20,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-01 17:52:20,612 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:52:20,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:20,662 INFO L225 Difference]: With dead ends: 20403 [2022-03-01 17:52:20,662 INFO L226 Difference]: Without dead ends: 20020 [2022-03-01 17:52:20,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11540 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1955, Invalid=27457, Unknown=0, NotChecked=0, Total=29412 [2022-03-01 17:52:20,663 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 1412 mSDsluCounter, 7772 mSDsCounter, 0 mSdLazyCounter, 8843 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 5254 SdHoareTripleChecker+Invalid, 9263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 8843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:20,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1412 Valid, 5254 Invalid, 9263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 8843 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-01 17:52:20,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20020 states. [2022-03-01 17:52:20,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20020 to 9545. [2022-03-01 17:52:20,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9545 states, 9544 states have (on average 3.5585708298407375) internal successors, (33963), 9544 states have internal predecessors, (33963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:20,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9545 states to 9545 states and 33963 transitions. [2022-03-01 17:52:20,901 INFO L78 Accepts]: Start accepts. Automaton has 9545 states and 33963 transitions. Word has length 47 [2022-03-01 17:52:20,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:20,901 INFO L470 AbstractCegarLoop]: Abstraction has 9545 states and 33963 transitions. [2022-03-01 17:52:20,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:20,901 INFO L276 IsEmpty]: Start isEmpty. Operand 9545 states and 33963 transitions. [2022-03-01 17:52:20,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:52:20,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:20,917 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:20,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-01 17:52:20,918 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:52:20,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:20,918 INFO L85 PathProgramCache]: Analyzing trace with hash 861406363, now seen corresponding path program 221 times [2022-03-01 17:52:20,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:20,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913755201] [2022-03-01 17:52:20,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:20,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:21,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:21,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913755201] [2022-03-01 17:52:21,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913755201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:21,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:21,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:52:21,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540546900] [2022-03-01 17:52:21,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:21,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:52:21,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:21,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:52:21,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:52:21,162 INFO L87 Difference]: Start difference. First operand 9545 states and 33963 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:25,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:25,996 INFO L93 Difference]: Finished difference Result 19152 states and 68026 transitions. [2022-03-01 17:52:25,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-03-01 17:52:25,996 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:52:25,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:26,042 INFO L225 Difference]: With dead ends: 19152 [2022-03-01 17:52:26,042 INFO L226 Difference]: Without dead ends: 19055 [2022-03-01 17:52:26,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5562 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1117, Invalid=14383, Unknown=0, NotChecked=0, Total=15500 [2022-03-01 17:52:26,044 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1035 mSDsluCounter, 6315 mSDsCounter, 0 mSdLazyCounter, 7273 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 4476 SdHoareTripleChecker+Invalid, 7457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 7273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:26,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1035 Valid, 4476 Invalid, 7457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 7273 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-01 17:52:26,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19055 states. [2022-03-01 17:52:26,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19055 to 9571. [2022-03-01 17:52:26,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9571 states, 9570 states have (on average 3.5573667711598747) internal successors, (34044), 9570 states have internal predecessors, (34044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:26,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9571 states to 9571 states and 34044 transitions. [2022-03-01 17:52:26,281 INFO L78 Accepts]: Start accepts. Automaton has 9571 states and 34044 transitions. Word has length 47 [2022-03-01 17:52:26,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:26,281 INFO L470 AbstractCegarLoop]: Abstraction has 9571 states and 34044 transitions. [2022-03-01 17:52:26,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:26,282 INFO L276 IsEmpty]: Start isEmpty. Operand 9571 states and 34044 transitions. [2022-03-01 17:52:26,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:52:26,297 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:26,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:26,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-01 17:52:26,297 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:52:26,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:26,297 INFO L85 PathProgramCache]: Analyzing trace with hash -864014147, now seen corresponding path program 222 times [2022-03-01 17:52:26,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:26,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450771265] [2022-03-01 17:52:26,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:26,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:26,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:26,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:26,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450771265] [2022-03-01 17:52:26,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450771265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:26,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:26,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:52:26,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889875290] [2022-03-01 17:52:26,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:26,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:52:26,529 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:26,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:52:26,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:52:26,530 INFO L87 Difference]: Start difference. First operand 9571 states and 34044 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:33,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:33,282 INFO L93 Difference]: Finished difference Result 22580 states and 80326 transitions. [2022-03-01 17:52:33,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-03-01 17:52:33,282 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:52:33,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:33,335 INFO L225 Difference]: With dead ends: 22580 [2022-03-01 17:52:33,335 INFO L226 Difference]: Without dead ends: 22397 [2022-03-01 17:52:33,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11065 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1920, Invalid=26472, Unknown=0, NotChecked=0, Total=28392 [2022-03-01 17:52:33,336 INFO L933 BasicCegarLoop]: 456 mSDtfsCounter, 1264 mSDsluCounter, 7761 mSDsCounter, 0 mSdLazyCounter, 9062 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 5425 SdHoareTripleChecker+Invalid, 9418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 9062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:33,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 5425 Invalid, 9418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 9062 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-01 17:52:33,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22397 states. [2022-03-01 17:52:33,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22397 to 9738. [2022-03-01 17:52:33,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9738 states, 9737 states have (on average 3.561055766663243) internal successors, (34674), 9737 states have internal predecessors, (34674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:33,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9738 states to 9738 states and 34674 transitions. [2022-03-01 17:52:33,575 INFO L78 Accepts]: Start accepts. Automaton has 9738 states and 34674 transitions. Word has length 47 [2022-03-01 17:52:33,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:33,575 INFO L470 AbstractCegarLoop]: Abstraction has 9738 states and 34674 transitions. [2022-03-01 17:52:33,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:33,575 INFO L276 IsEmpty]: Start isEmpty. Operand 9738 states and 34674 transitions. [2022-03-01 17:52:33,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:52:33,591 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:33,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:33,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-01 17:52:33,591 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:52:33,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:33,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1872368903, now seen corresponding path program 223 times [2022-03-01 17:52:33,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:33,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244666486] [2022-03-01 17:52:33,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:33,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:33,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:33,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:33,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244666486] [2022-03-01 17:52:33,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244666486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:33,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:33,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:52:33,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658452782] [2022-03-01 17:52:33,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:33,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:52:33,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:33,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:52:33,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:52:33,816 INFO L87 Difference]: Start difference. First operand 9738 states and 34674 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:37,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:37,186 INFO L93 Difference]: Finished difference Result 15750 states and 56134 transitions. [2022-03-01 17:52:37,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-03-01 17:52:37,186 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:52:37,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:37,223 INFO L225 Difference]: With dead ends: 15750 [2022-03-01 17:52:37,223 INFO L226 Difference]: Without dead ends: 15549 [2022-03-01 17:52:37,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2934 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=746, Invalid=7996, Unknown=0, NotChecked=0, Total=8742 [2022-03-01 17:52:37,224 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 827 mSDsluCounter, 4327 mSDsCounter, 0 mSdLazyCounter, 5260 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 3142 SdHoareTripleChecker+Invalid, 5389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 5260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:37,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [827 Valid, 3142 Invalid, 5389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 5260 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-01 17:52:37,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15549 states. [2022-03-01 17:52:37,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15549 to 10126. [2022-03-01 17:52:37,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10126 states, 10125 states have (on average 3.5689876543209875) internal successors, (36136), 10125 states have internal predecessors, (36136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:37,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10126 states to 10126 states and 36136 transitions. [2022-03-01 17:52:37,428 INFO L78 Accepts]: Start accepts. Automaton has 10126 states and 36136 transitions. Word has length 47 [2022-03-01 17:52:37,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:37,428 INFO L470 AbstractCegarLoop]: Abstraction has 10126 states and 36136 transitions. [2022-03-01 17:52:37,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:37,428 INFO L276 IsEmpty]: Start isEmpty. Operand 10126 states and 36136 transitions. [2022-03-01 17:52:37,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:52:37,445 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:37,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:37,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-01 17:52:37,445 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:52:37,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:37,446 INFO L85 PathProgramCache]: Analyzing trace with hash -237775175, now seen corresponding path program 224 times [2022-03-01 17:52:37,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:37,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823096770] [2022-03-01 17:52:37,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:37,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:37,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:37,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823096770] [2022-03-01 17:52:37,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823096770] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:37,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:37,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:52:37,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198420472] [2022-03-01 17:52:37,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:37,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:52:37,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:37,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:52:37,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:52:37,676 INFO L87 Difference]: Start difference. First operand 10126 states and 36136 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:41,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:41,912 INFO L93 Difference]: Finished difference Result 17140 states and 60885 transitions. [2022-03-01 17:52:41,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-03-01 17:52:41,913 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:52:41,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:41,951 INFO L225 Difference]: With dead ends: 17140 [2022-03-01 17:52:41,951 INFO L226 Difference]: Without dead ends: 16867 [2022-03-01 17:52:41,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4636 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=963, Invalid=12147, Unknown=0, NotChecked=0, Total=13110 [2022-03-01 17:52:41,953 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 980 mSDsluCounter, 5586 mSDsCounter, 0 mSdLazyCounter, 6420 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 6611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 6420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:41,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 4096 Invalid, 6611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 6420 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-01 17:52:41,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16867 states. [2022-03-01 17:52:42,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16867 to 10162. [2022-03-01 17:52:42,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10162 states, 10161 states have (on average 3.571400452711347) internal successors, (36289), 10161 states have internal predecessors, (36289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:42,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10162 states to 10162 states and 36289 transitions. [2022-03-01 17:52:42,170 INFO L78 Accepts]: Start accepts. Automaton has 10162 states and 36289 transitions. Word has length 47 [2022-03-01 17:52:42,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:42,170 INFO L470 AbstractCegarLoop]: Abstraction has 10162 states and 36289 transitions. [2022-03-01 17:52:42,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:42,170 INFO L276 IsEmpty]: Start isEmpty. Operand 10162 states and 36289 transitions. [2022-03-01 17:52:42,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:52:42,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:42,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:42,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-01 17:52:42,187 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:52:42,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:42,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1355842139, now seen corresponding path program 225 times [2022-03-01 17:52:42,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:42,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682773767] [2022-03-01 17:52:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:42,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:42,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:42,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:42,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682773767] [2022-03-01 17:52:42,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682773767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:42,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:42,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:52:42,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877554896] [2022-03-01 17:52:42,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:42,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:52:42,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:42,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:52:42,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:52:42,406 INFO L87 Difference]: Start difference. First operand 10162 states and 36289 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:45,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:45,724 INFO L93 Difference]: Finished difference Result 15565 states and 55467 transitions. [2022-03-01 17:52:45,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-01 17:52:45,725 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:52:45,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:45,760 INFO L225 Difference]: With dead ends: 15565 [2022-03-01 17:52:45,760 INFO L226 Difference]: Without dead ends: 15364 [2022-03-01 17:52:45,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3166 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=780, Invalid=8532, Unknown=0, NotChecked=0, Total=9312 [2022-03-01 17:52:45,761 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 864 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 5041 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2962 SdHoareTripleChecker+Invalid, 5178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 5041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:45,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [864 Valid, 2962 Invalid, 5178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 5041 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-01 17:52:45,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15364 states. [2022-03-01 17:52:45,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15364 to 10162. [2022-03-01 17:52:45,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10162 states, 10161 states have (on average 3.571400452711347) internal successors, (36289), 10161 states have internal predecessors, (36289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:45,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10162 states to 10162 states and 36289 transitions. [2022-03-01 17:52:45,961 INFO L78 Accepts]: Start accepts. Automaton has 10162 states and 36289 transitions. Word has length 47 [2022-03-01 17:52:45,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:45,962 INFO L470 AbstractCegarLoop]: Abstraction has 10162 states and 36289 transitions. [2022-03-01 17:52:45,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:45,962 INFO L276 IsEmpty]: Start isEmpty. Operand 10162 states and 36289 transitions. [2022-03-01 17:52:45,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:52:45,978 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:45,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:45,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-01 17:52:45,978 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:52:45,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:45,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1570695495, now seen corresponding path program 226 times [2022-03-01 17:52:45,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:45,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166535095] [2022-03-01 17:52:45,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:45,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:46,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:46,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166535095] [2022-03-01 17:52:46,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166535095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:46,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:46,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:52:46,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574191675] [2022-03-01 17:52:46,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:46,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:52:46,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:46,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:52:46,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:52:46,207 INFO L87 Difference]: Start difference. First operand 10162 states and 36289 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:52,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:52,149 INFO L93 Difference]: Finished difference Result 19321 states and 68760 transitions. [2022-03-01 17:52:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-03-01 17:52:52,149 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:52:52,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:52,194 INFO L225 Difference]: With dead ends: 19321 [2022-03-01 17:52:52,194 INFO L226 Difference]: Without dead ends: 18685 [2022-03-01 17:52:52,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8416 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1546, Invalid=20506, Unknown=0, NotChecked=0, Total=22052 [2022-03-01 17:52:52,196 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 1221 mSDsluCounter, 7576 mSDsCounter, 0 mSdLazyCounter, 8776 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 5475 SdHoareTripleChecker+Invalid, 9045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 8776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:52,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1221 Valid, 5475 Invalid, 9045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 8776 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-01 17:52:52,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18685 states. [2022-03-01 17:52:52,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18685 to 10501. [2022-03-01 17:52:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10501 states, 10500 states have (on average 3.570952380952381) internal successors, (37495), 10500 states have internal predecessors, (37495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:52,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10501 states to 10501 states and 37495 transitions. [2022-03-01 17:52:52,481 INFO L78 Accepts]: Start accepts. Automaton has 10501 states and 37495 transitions. Word has length 47 [2022-03-01 17:52:52,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:52,481 INFO L470 AbstractCegarLoop]: Abstraction has 10501 states and 37495 transitions. [2022-03-01 17:52:52,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:52,481 INFO L276 IsEmpty]: Start isEmpty. Operand 10501 states and 37495 transitions. [2022-03-01 17:52:52,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:52:52,498 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:52,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:52,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-01 17:52:52,499 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:52:52,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:52,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1015597541, now seen corresponding path program 227 times [2022-03-01 17:52:52,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:52,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069345659] [2022-03-01 17:52:52,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:52,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:52,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:52,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:52,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069345659] [2022-03-01 17:52:52,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069345659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:52,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:52,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-03-01 17:52:52,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634094735] [2022-03-01 17:52:52,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:52,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 17:52:52,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:52,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 17:52:52,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2022-03-01 17:52:52,723 INFO L87 Difference]: Start difference. First operand 10501 states and 37495 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:57,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:52:57,046 INFO L93 Difference]: Finished difference Result 17680 states and 63164 transitions. [2022-03-01 17:52:57,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-03-01 17:52:57,046 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:52:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:52:57,091 INFO L225 Difference]: With dead ends: 17680 [2022-03-01 17:52:57,091 INFO L226 Difference]: Without dead ends: 17406 [2022-03-01 17:52:57,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4314 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=990, Invalid=11220, Unknown=0, NotChecked=0, Total=12210 [2022-03-01 17:52:57,092 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 960 mSDsluCounter, 5378 mSDsCounter, 0 mSdLazyCounter, 6644 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 3754 SdHoareTripleChecker+Invalid, 6848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 6644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:52:57,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 3754 Invalid, 6848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 6644 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-01 17:52:57,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17406 states. [2022-03-01 17:52:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17406 to 10660. [2022-03-01 17:52:57,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10659 states have (on average 3.5705037996059668) internal successors, (38058), 10659 states have internal predecessors, (38058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:57,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 38058 transitions. [2022-03-01 17:52:57,306 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 38058 transitions. Word has length 47 [2022-03-01 17:52:57,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:52:57,306 INFO L470 AbstractCegarLoop]: Abstraction has 10660 states and 38058 transitions. [2022-03-01 17:52:57,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:52:57,306 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 38058 transitions. [2022-03-01 17:52:57,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:52:57,324 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:52:57,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:52:57,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-01 17:52:57,324 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:52:57,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:52:57,325 INFO L85 PathProgramCache]: Analyzing trace with hash 618996187, now seen corresponding path program 228 times [2022-03-01 17:52:57,325 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:52:57,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286214073] [2022-03-01 17:52:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:52:57,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:52:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:52:57,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:52:57,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:52:57,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286214073] [2022-03-01 17:52:57,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286214073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:52:57,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:52:57,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:52:57,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099210794] [2022-03-01 17:52:57,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:52:57,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:52:57,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:52:57,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:52:57,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:52:57,560 INFO L87 Difference]: Start difference. First operand 10660 states and 38058 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:02,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:53:02,880 INFO L93 Difference]: Finished difference Result 18986 states and 67756 transitions. [2022-03-01 17:53:02,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-01 17:53:02,881 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:53:02,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:53:02,925 INFO L225 Difference]: With dead ends: 18986 [2022-03-01 17:53:02,925 INFO L226 Difference]: Without dead ends: 18819 [2022-03-01 17:53:02,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6496 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1214, Invalid=16342, Unknown=0, NotChecked=0, Total=17556 [2022-03-01 17:53:02,927 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1133 mSDsluCounter, 6865 mSDsCounter, 0 mSdLazyCounter, 8237 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 4956 SdHoareTripleChecker+Invalid, 8517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 8237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:53:02,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 4956 Invalid, 8517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 8237 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-01 17:53:02,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18819 states. [2022-03-01 17:53:03,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18819 to 10806. [2022-03-01 17:53:03,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10806 states, 10805 states have (on average 3.5742711707542805) internal successors, (38620), 10805 states have internal predecessors, (38620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:03,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10806 states to 10806 states and 38620 transitions. [2022-03-01 17:53:03,169 INFO L78 Accepts]: Start accepts. Automaton has 10806 states and 38620 transitions. Word has length 47 [2022-03-01 17:53:03,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:53:03,169 INFO L470 AbstractCegarLoop]: Abstraction has 10806 states and 38620 transitions. [2022-03-01 17:53:03,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:03,169 INFO L276 IsEmpty]: Start isEmpty. Operand 10806 states and 38620 transitions. [2022-03-01 17:53:03,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:53:03,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:53:03,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:53:03,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-01 17:53:03,187 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:53:03,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:53:03,187 INFO L85 PathProgramCache]: Analyzing trace with hash -2074403843, now seen corresponding path program 229 times [2022-03-01 17:53:03,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:53:03,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067034364] [2022-03-01 17:53:03,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:53:03,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:53:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:53:03,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:53:03,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:53:03,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067034364] [2022-03-01 17:53:03,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067034364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:53:03,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:53:03,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:53:03,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968431506] [2022-03-01 17:53:03,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:53:03,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:53:03,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:53:03,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:53:03,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:53:03,417 INFO L87 Difference]: Start difference. First operand 10806 states and 38620 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:09,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:53:09,521 INFO L93 Difference]: Finished difference Result 21071 states and 75038 transitions. [2022-03-01 17:53:09,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-01 17:53:09,521 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:53:09,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:53:09,569 INFO L225 Difference]: With dead ends: 21071 [2022-03-01 17:53:09,569 INFO L226 Difference]: Without dead ends: 20812 [2022-03-01 17:53:09,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9197 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1649, Invalid=22221, Unknown=0, NotChecked=0, Total=23870 [2022-03-01 17:53:09,570 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1324 mSDsluCounter, 6410 mSDsCounter, 0 mSdLazyCounter, 7638 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 4623 SdHoareTripleChecker+Invalid, 8075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 7638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-01 17:53:09,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1324 Valid, 4623 Invalid, 8075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 7638 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-01 17:53:09,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20812 states. [2022-03-01 17:53:09,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20812 to 10804. [2022-03-01 17:53:09,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10804 states, 10803 states have (on average 3.5761362584467276) internal successors, (38633), 10803 states have internal predecessors, (38633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:09,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10804 states to 10804 states and 38633 transitions. [2022-03-01 17:53:09,816 INFO L78 Accepts]: Start accepts. Automaton has 10804 states and 38633 transitions. Word has length 47 [2022-03-01 17:53:09,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:53:09,816 INFO L470 AbstractCegarLoop]: Abstraction has 10804 states and 38633 transitions. [2022-03-01 17:53:09,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:09,816 INFO L276 IsEmpty]: Start isEmpty. Operand 10804 states and 38633 transitions. [2022-03-01 17:53:09,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:53:09,834 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:53:09,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:53:09,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-01 17:53:09,834 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:53:09,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:53:09,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1056864505, now seen corresponding path program 230 times [2022-03-01 17:53:09,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:53:09,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708646931] [2022-03-01 17:53:09,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:53:09,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:53:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:53:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:53:10,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:53:10,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708646931] [2022-03-01 17:53:10,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708646931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:53:10,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:53:10,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:53:10,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96013392] [2022-03-01 17:53:10,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:53:10,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:53:10,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:53:10,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:53:10,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:53:10,071 INFO L87 Difference]: Start difference. First operand 10804 states and 38633 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:16,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:53:16,747 INFO L93 Difference]: Finished difference Result 23989 states and 85930 transitions. [2022-03-01 17:53:16,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2022-03-01 17:53:16,747 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:53:16,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:53:16,803 INFO L225 Difference]: With dead ends: 23989 [2022-03-01 17:53:16,804 INFO L226 Difference]: Without dead ends: 23360 [2022-03-01 17:53:16,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10181 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1804, Invalid=24278, Unknown=0, NotChecked=0, Total=26082 [2022-03-01 17:53:16,806 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1293 mSDsluCounter, 7380 mSDsCounter, 0 mSdLazyCounter, 8793 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 5006 SdHoareTripleChecker+Invalid, 9193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 8793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:53:16,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1293 Valid, 5006 Invalid, 9193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 8793 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-01 17:53:16,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23360 states. [2022-03-01 17:53:17,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23360 to 11248. [2022-03-01 17:53:17,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11248 states, 11247 states have (on average 3.5828220858895707) internal successors, (40296), 11247 states have internal predecessors, (40296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:17,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11248 states to 11248 states and 40296 transitions. [2022-03-01 17:53:17,136 INFO L78 Accepts]: Start accepts. Automaton has 11248 states and 40296 transitions. Word has length 47 [2022-03-01 17:53:17,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:53:17,137 INFO L470 AbstractCegarLoop]: Abstraction has 11248 states and 40296 transitions. [2022-03-01 17:53:17,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:17,137 INFO L276 IsEmpty]: Start isEmpty. Operand 11248 states and 40296 transitions. [2022-03-01 17:53:17,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:53:17,156 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:53:17,156 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:53:17,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-01 17:53:17,156 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:53:17,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:53:17,156 INFO L85 PathProgramCache]: Analyzing trace with hash -396165737, now seen corresponding path program 231 times [2022-03-01 17:53:17,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:53:17,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231924322] [2022-03-01 17:53:17,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:53:17,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:53:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:53:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:53:17,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:53:17,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231924322] [2022-03-01 17:53:17,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231924322] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:53:17,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:53:17,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:53:17,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108197976] [2022-03-01 17:53:17,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:53:17,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:53:17,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:53:17,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:53:17,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:53:17,389 INFO L87 Difference]: Start difference. First operand 11248 states and 40296 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:22,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:53:22,296 INFO L93 Difference]: Finished difference Result 19686 states and 70270 transitions. [2022-03-01 17:53:22,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-03-01 17:53:22,297 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:53:22,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:53:22,342 INFO L225 Difference]: With dead ends: 19686 [2022-03-01 17:53:22,342 INFO L226 Difference]: Without dead ends: 19212 [2022-03-01 17:53:22,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4707 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1119, Invalid=12453, Unknown=0, NotChecked=0, Total=13572 [2022-03-01 17:53:22,343 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 1160 mSDsluCounter, 5975 mSDsCounter, 0 mSdLazyCounter, 7034 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 4134 SdHoareTripleChecker+Invalid, 7322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 7034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:53:22,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 4134 Invalid, 7322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 7034 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-01 17:53:22,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19212 states. [2022-03-01 17:53:22,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19212 to 11340. [2022-03-01 17:53:22,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11340 states, 11339 states have (on average 3.582502866213952) internal successors, (40622), 11339 states have internal predecessors, (40622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:22,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11340 states to 11340 states and 40622 transitions. [2022-03-01 17:53:22,581 INFO L78 Accepts]: Start accepts. Automaton has 11340 states and 40622 transitions. Word has length 47 [2022-03-01 17:53:22,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:53:22,581 INFO L470 AbstractCegarLoop]: Abstraction has 11340 states and 40622 transitions. [2022-03-01 17:53:22,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:22,581 INFO L276 IsEmpty]: Start isEmpty. Operand 11340 states and 40622 transitions. [2022-03-01 17:53:22,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:53:22,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:53:22,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:53:22,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-01 17:53:22,600 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:53:22,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:53:22,600 INFO L85 PathProgramCache]: Analyzing trace with hash -462228295, now seen corresponding path program 232 times [2022-03-01 17:53:22,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:53:22,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938864458] [2022-03-01 17:53:22,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:53:22,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:53:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:53:22,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:53:22,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:53:22,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938864458] [2022-03-01 17:53:22,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938864458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:53:22,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:53:22,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:53:22,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136921840] [2022-03-01 17:53:22,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:53:22,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:53:22,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:53:22,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:53:22,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:53:22,831 INFO L87 Difference]: Start difference. First operand 11340 states and 40622 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:28,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:53:28,055 INFO L93 Difference]: Finished difference Result 20048 states and 71629 transitions. [2022-03-01 17:53:28,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-03-01 17:53:28,055 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:53:28,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:53:28,158 INFO L225 Difference]: With dead ends: 20048 [2022-03-01 17:53:28,158 INFO L226 Difference]: Without dead ends: 19715 [2022-03-01 17:53:28,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5753 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1191, Invalid=14811, Unknown=0, NotChecked=0, Total=16002 [2022-03-01 17:53:28,159 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1207 mSDsluCounter, 6414 mSDsCounter, 0 mSdLazyCounter, 7709 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 4679 SdHoareTripleChecker+Invalid, 8038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 7709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-01 17:53:28,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 4679 Invalid, 8038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 7709 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-01 17:53:28,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19715 states. [2022-03-01 17:53:28,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19715 to 11547. [2022-03-01 17:53:28,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11547 states, 11546 states have (on average 3.577775853109302) internal successors, (41309), 11546 states have internal predecessors, (41309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:28,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11547 states to 11547 states and 41309 transitions. [2022-03-01 17:53:28,379 INFO L78 Accepts]: Start accepts. Automaton has 11547 states and 41309 transitions. Word has length 47 [2022-03-01 17:53:28,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:53:28,379 INFO L470 AbstractCegarLoop]: Abstraction has 11547 states and 41309 transitions. [2022-03-01 17:53:28,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:28,379 INFO L276 IsEmpty]: Start isEmpty. Operand 11547 states and 41309 transitions. [2022-03-01 17:53:28,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:53:28,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:53:28,398 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:53:28,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-01 17:53:28,398 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:53:28,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:53:28,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1719882533, now seen corresponding path program 233 times [2022-03-01 17:53:28,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:53:28,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333694959] [2022-03-01 17:53:28,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:53:28,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:53:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:53:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:53:28,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:53:28,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333694959] [2022-03-01 17:53:28,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333694959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:53:28,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:53:28,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:53:28,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868205784] [2022-03-01 17:53:28,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:53:28,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:53:28,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:53:28,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:53:28,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:53:28,640 INFO L87 Difference]: Start difference. First operand 11547 states and 41309 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:35,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:53:35,224 INFO L93 Difference]: Finished difference Result 21886 states and 78200 transitions. [2022-03-01 17:53:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2022-03-01 17:53:35,224 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:53:35,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:53:35,275 INFO L225 Difference]: With dead ends: 21886 [2022-03-01 17:53:35,275 INFO L226 Difference]: Without dead ends: 21403 [2022-03-01 17:53:35,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10019 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1741, Invalid=24019, Unknown=0, NotChecked=0, Total=25760 [2022-03-01 17:53:35,276 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 1296 mSDsluCounter, 7710 mSDsCounter, 0 mSdLazyCounter, 9139 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 5559 SdHoareTripleChecker+Invalid, 9483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 9139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:53:35,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1296 Valid, 5559 Invalid, 9483 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [344 Valid, 9139 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-01 17:53:35,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21403 states. [2022-03-01 17:53:35,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21403 to 11708. [2022-03-01 17:53:35,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11708 states, 11707 states have (on average 3.57948236098061) internal successors, (41905), 11707 states have internal predecessors, (41905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:35,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11708 states to 11708 states and 41905 transitions. [2022-03-01 17:53:35,534 INFO L78 Accepts]: Start accepts. Automaton has 11708 states and 41905 transitions. Word has length 47 [2022-03-01 17:53:35,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:53:35,534 INFO L470 AbstractCegarLoop]: Abstraction has 11708 states and 41905 transitions. [2022-03-01 17:53:35,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:35,534 INFO L276 IsEmpty]: Start isEmpty. Operand 11708 states and 41905 transitions. [2022-03-01 17:53:35,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:53:35,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:53:35,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:53:35,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-01 17:53:35,554 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:53:35,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:53:35,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1451219203, now seen corresponding path program 234 times [2022-03-01 17:53:35,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:53:35,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237383443] [2022-03-01 17:53:35,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:53:35,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:53:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:53:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:53:35,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:53:35,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237383443] [2022-03-01 17:53:35,789 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237383443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:53:35,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:53:35,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:53:35,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677010136] [2022-03-01 17:53:35,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:53:35,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:53:35,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:53:35,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:53:35,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:53:35,789 INFO L87 Difference]: Start difference. First operand 11708 states and 41905 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:43,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:53:43,359 INFO L93 Difference]: Finished difference Result 24655 states and 88051 transitions. [2022-03-01 17:53:43,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2022-03-01 17:53:43,359 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:53:43,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:53:43,416 INFO L225 Difference]: With dead ends: 24655 [2022-03-01 17:53:43,416 INFO L226 Difference]: Without dead ends: 24445 [2022-03-01 17:53:43,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14334 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=2151, Invalid=33381, Unknown=0, NotChecked=0, Total=35532 [2022-03-01 17:53:43,418 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 1439 mSDsluCounter, 8196 mSDsCounter, 0 mSdLazyCounter, 9416 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 5681 SdHoareTripleChecker+Invalid, 9901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 9416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-01 17:53:43,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1439 Valid, 5681 Invalid, 9901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 9416 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-01 17:53:43,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24445 states. [2022-03-01 17:53:43,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24445 to 11631. [2022-03-01 17:53:43,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11631 states, 11630 states have (on average 3.5825451418744625) internal successors, (41665), 11630 states have internal predecessors, (41665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:43,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11631 states to 11631 states and 41665 transitions. [2022-03-01 17:53:43,761 INFO L78 Accepts]: Start accepts. Automaton has 11631 states and 41665 transitions. Word has length 47 [2022-03-01 17:53:43,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:53:43,761 INFO L470 AbstractCegarLoop]: Abstraction has 11631 states and 41665 transitions. [2022-03-01 17:53:43,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:43,761 INFO L276 IsEmpty]: Start isEmpty. Operand 11631 states and 41665 transitions. [2022-03-01 17:53:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:53:43,779 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:53:43,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:53:43,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-01 17:53:43,780 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:53:43,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:53:43,780 INFO L85 PathProgramCache]: Analyzing trace with hash 120202233, now seen corresponding path program 235 times [2022-03-01 17:53:43,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:53:43,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436972790] [2022-03-01 17:53:43,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:53:43,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:53:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:53:44,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:53:44,011 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:53:44,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436972790] [2022-03-01 17:53:44,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436972790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:53:44,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:53:44,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:53:44,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289987391] [2022-03-01 17:53:44,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:53:44,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:53:44,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:53:44,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:53:44,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:53:44,012 INFO L87 Difference]: Start difference. First operand 11631 states and 41665 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:51,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:53:51,341 INFO L93 Difference]: Finished difference Result 25521 states and 91530 transitions. [2022-03-01 17:53:51,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2022-03-01 17:53:51,341 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:53:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:53:51,405 INFO L225 Difference]: With dead ends: 25521 [2022-03-01 17:53:51,405 INFO L226 Difference]: Without dead ends: 24833 [2022-03-01 17:53:51,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12097 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1913, Invalid=28537, Unknown=0, NotChecked=0, Total=30450 [2022-03-01 17:53:51,408 INFO L933 BasicCegarLoop]: 496 mSDtfsCounter, 1225 mSDsluCounter, 8635 mSDsCounter, 0 mSdLazyCounter, 10192 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 6116 SdHoareTripleChecker+Invalid, 10557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 10192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:53:51,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1225 Valid, 6116 Invalid, 10557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 10192 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-01 17:53:51,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24833 states. [2022-03-01 17:53:51,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24833 to 12061. [2022-03-01 17:53:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12061 states, 12060 states have (on average 3.5893864013266996) internal successors, (43288), 12060 states have internal predecessors, (43288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:51,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12061 states to 12061 states and 43288 transitions. [2022-03-01 17:53:51,768 INFO L78 Accepts]: Start accepts. Automaton has 12061 states and 43288 transitions. Word has length 47 [2022-03-01 17:53:51,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:53:51,768 INFO L470 AbstractCegarLoop]: Abstraction has 12061 states and 43288 transitions. [2022-03-01 17:53:51,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:51,769 INFO L276 IsEmpty]: Start isEmpty. Operand 12061 states and 43288 transitions. [2022-03-01 17:53:51,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:53:51,788 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:53:51,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:53:51,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-01 17:53:51,789 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:53:51,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:53:51,789 INFO L85 PathProgramCache]: Analyzing trace with hash 419093911, now seen corresponding path program 236 times [2022-03-01 17:53:51,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:53:51,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14238382] [2022-03-01 17:53:51,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:53:51,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:53:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:53:52,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:53:52,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:53:52,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14238382] [2022-03-01 17:53:52,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14238382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:53:52,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:53:52,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:53:52,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801347892] [2022-03-01 17:53:52,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:53:52,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:53:52,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:53:52,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:53:52,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:53:52,026 INFO L87 Difference]: Start difference. First operand 12061 states and 43288 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:58,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:53:58,863 INFO L93 Difference]: Finished difference Result 25860 states and 92602 transitions. [2022-03-01 17:53:58,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2022-03-01 17:53:58,863 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:53:58,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:53:58,926 INFO L225 Difference]: With dead ends: 25860 [2022-03-01 17:53:58,926 INFO L226 Difference]: Without dead ends: 25280 [2022-03-01 17:53:58,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11270 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1932, Invalid=26798, Unknown=0, NotChecked=0, Total=28730 [2022-03-01 17:53:58,928 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1266 mSDsluCounter, 7431 mSDsCounter, 0 mSdLazyCounter, 8456 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 5224 SdHoareTripleChecker+Invalid, 8836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 8456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-01 17:53:58,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 5224 Invalid, 8836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 8456 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-01 17:53:58,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25280 states. [2022-03-01 17:53:59,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25280 to 12784. [2022-03-01 17:53:59,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12784 states, 12783 states have (on average 3.6001721035750607) internal successors, (46021), 12783 states have internal predecessors, (46021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:59,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12784 states to 12784 states and 46021 transitions. [2022-03-01 17:53:59,301 INFO L78 Accepts]: Start accepts. Automaton has 12784 states and 46021 transitions. Word has length 47 [2022-03-01 17:53:59,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:53:59,301 INFO L470 AbstractCegarLoop]: Abstraction has 12784 states and 46021 transitions. [2022-03-01 17:53:59,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:53:59,301 INFO L276 IsEmpty]: Start isEmpty. Operand 12784 states and 46021 transitions. [2022-03-01 17:53:59,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:53:59,324 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:53:59,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:53:59,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-01 17:53:59,324 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:53:59,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:53:59,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1306326599, now seen corresponding path program 237 times [2022-03-01 17:53:59,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:53:59,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159886092] [2022-03-01 17:53:59,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:53:59,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:53:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:53:59,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:53:59,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:53:59,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159886092] [2022-03-01 17:53:59,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159886092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:53:59,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:53:59,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:53:59,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325147123] [2022-03-01 17:53:59,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:53:59,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:53:59,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:53:59,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:53:59,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:53:59,559 INFO L87 Difference]: Start difference. First operand 12784 states and 46021 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:54:06,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:54:06,060 INFO L93 Difference]: Finished difference Result 25321 states and 90899 transitions. [2022-03-01 17:54:06,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-03-01 17:54:06,060 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:54:06,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:54:06,130 INFO L225 Difference]: With dead ends: 25321 [2022-03-01 17:54:06,130 INFO L226 Difference]: Without dead ends: 24655 [2022-03-01 17:54:06,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9290 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1610, Invalid=22570, Unknown=0, NotChecked=0, Total=24180 [2022-03-01 17:54:06,132 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1160 mSDsluCounter, 7767 mSDsCounter, 0 mSdLazyCounter, 9090 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 5564 SdHoareTripleChecker+Invalid, 9481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 9090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:54:06,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 5564 Invalid, 9481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [391 Valid, 9090 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-01 17:54:06,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24655 states. [2022-03-01 17:54:06,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24655 to 12777. [2022-03-01 17:54:06,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12777 states, 12776 states have (on average 3.59815278647464) internal successors, (45970), 12776 states have internal predecessors, (45970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:54:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12777 states to 12777 states and 45970 transitions. [2022-03-01 17:54:06,548 INFO L78 Accepts]: Start accepts. Automaton has 12777 states and 45970 transitions. Word has length 47 [2022-03-01 17:54:06,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:54:06,548 INFO L470 AbstractCegarLoop]: Abstraction has 12777 states and 45970 transitions. [2022-03-01 17:54:06,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:54:06,548 INFO L276 IsEmpty]: Start isEmpty. Operand 12777 states and 45970 transitions. [2022-03-01 17:54:06,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:54:06,570 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:54:06,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:54:06,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-01 17:54:06,570 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:54:06,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:54:06,571 INFO L85 PathProgramCache]: Analyzing trace with hash 938152415, now seen corresponding path program 238 times [2022-03-01 17:54:06,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:54:06,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136933037] [2022-03-01 17:54:06,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:54:06,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:54:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:54:06,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:54:06,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:54:06,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136933037] [2022-03-01 17:54:06,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136933037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:54:06,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:54:06,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:54:06,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214962896] [2022-03-01 17:54:06,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:54:06,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:54:06,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:54:06,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:54:06,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:54:06,801 INFO L87 Difference]: Start difference. First operand 12777 states and 45970 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:54:13,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:54:13,498 INFO L93 Difference]: Finished difference Result 26145 states and 93369 transitions. [2022-03-01 17:54:13,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2022-03-01 17:54:13,498 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-03-01 17:54:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:54:13,564 INFO L225 Difference]: With dead ends: 26145 [2022-03-01 17:54:13,565 INFO L226 Difference]: Without dead ends: 25741 [2022-03-01 17:54:13,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11310 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1955, Invalid=26775, Unknown=0, NotChecked=0, Total=28730 [2022-03-01 17:54:13,567 INFO L933 BasicCegarLoop]: 481 mSDtfsCounter, 1371 mSDsluCounter, 8014 mSDsCounter, 0 mSdLazyCounter, 9013 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 5758 SdHoareTripleChecker+Invalid, 9424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 9013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:54:13,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1371 Valid, 5758 Invalid, 9424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 9013 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-01 17:54:13,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25741 states. [2022-03-01 17:54:13,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25741 to 13143. [2022-03-01 17:54:13,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13143 states, 13142 states have (on average 3.604474204839446) internal successors, (47370), 13142 states have internal predecessors, (47370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:54:13,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13143 states to 13143 states and 47370 transitions. [2022-03-01 17:54:13,927 INFO L78 Accepts]: Start accepts. Automaton has 13143 states and 47370 transitions. Word has length 47 [2022-03-01 17:54:13,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:54:13,927 INFO L470 AbstractCegarLoop]: Abstraction has 13143 states and 47370 transitions. [2022-03-01 17:54:13,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:54:13,928 INFO L276 IsEmpty]: Start isEmpty. Operand 13143 states and 47370 transitions. [2022-03-01 17:54:13,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-03-01 17:54:13,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:54:13,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:54:13,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-01 17:54:13,951 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err0INUSE_VIOLATION, thread1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 7 more)] === [2022-03-01 17:54:13,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:54:13,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1104337533, now seen corresponding path program 239 times [2022-03-01 17:54:13,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:54:13,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317636503] [2022-03-01 17:54:13,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:54:13,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:54:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:54:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:54:14,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:54:14,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317636503] [2022-03-01 17:54:14,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317636503] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:54:14,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:54:14,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-03-01 17:54:14,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129251942] [2022-03-01 17:54:14,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:54:14,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 17:54:14,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:54:14,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 17:54:14,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-03-01 17:54:14,182 INFO L87 Difference]: Start difference. First operand 13143 states and 47370 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 17 states have internal predecessors, (47), 0 states have call successors, (0), 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... [2022-03-01 17:54:15,096 WARN L244 SmtUtils]: Removed 4 from assertion stack [2022-03-01 17:54:15,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 17:54:15,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=1292, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 17:54:15,096 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 114 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 17:54:15,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 417 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 17:54:15,097 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (10 of 11 remaining) [2022-03-01 17:54:15,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-01 17:54:15,097 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (13143states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 25 for 22ms.. [2022-03-01 17:54:15,098 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0INUSE_VIOLATION (9 of 11 remaining) [2022-03-01 17:54:15,099 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1INUSE_VIOLATION (8 of 11 remaining) [2022-03-01 17:54:15,099 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (7 of 11 remaining) [2022-03-01 17:54:15,099 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8INUSE_VIOLATION (6 of 11 remaining) [2022-03-01 17:54:15,099 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err7INUSE_VIOLATION (5 of 11 remaining) [2022-03-01 17:54:15,099 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err9INUSE_VIOLATION (4 of 11 remaining) [2022-03-01 17:54:15,099 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork2Err3INUSE_VIOLATION (3 of 11 remaining) [2022-03-01 17:54:15,099 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork2Err4INUSE_VIOLATION (2 of 11 remaining) [2022-03-01 17:54:15,099 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Thread1of1ForFork4Err5INUSE_VIOLATION (1 of 11 remaining) [2022-03-01 17:54:15,099 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Thread1of1ForFork4Err6INUSE_VIOLATION (0 of 11 remaining) [2022-03-01 17:54:15,101 INFO L732 BasicCegarLoop]: Path program histogram: [239] [2022-03-01 17:54:15,102 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 17:54:15,102 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 17:54:15,104 INFO L202 PluginConnector]: Adding new model barrier.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 05:54:15 BasicIcfg [2022-03-01 17:54:15,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 17:54:15,104 INFO L158 Benchmark]: Toolchain (without parser) took 712370.61ms. Allocated memory was 183.5MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 143.5MB in the beginning and 512.5MB in the end (delta: -369.1MB). Peak memory consumption was 750.8MB. Max. memory is 8.0GB. [2022-03-01 17:54:15,104 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 17:54:15,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.22ms. Allocated memory is still 183.5MB. Free memory was 143.3MB in the beginning and 141.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 17:54:15,104 INFO L158 Benchmark]: Boogie Preprocessor took 13.75ms. Allocated memory is still 183.5MB. Free memory was 141.8MB in the beginning and 140.9MB in the end (delta: 852.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 17:54:15,104 INFO L158 Benchmark]: RCFGBuilder took 228.54ms. Allocated memory is still 183.5MB. Free memory was 140.8MB in the beginning and 131.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-01 17:54:15,104 INFO L158 Benchmark]: TraceAbstraction took 712103.81ms. Allocated memory was 183.5MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 130.8MB in the beginning and 512.5MB in the end (delta: -381.8MB). Peak memory consumption was 738.2MB. Max. memory is 8.0GB. [2022-03-01 17:54:15,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.22ms. Allocated memory is still 183.5MB. Free memory was 143.3MB in the beginning and 141.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.75ms. Allocated memory is still 183.5MB. Free memory was 141.8MB in the beginning and 140.9MB in the end (delta: 852.6kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 228.54ms. Allocated memory is still 183.5MB. Free memory was 140.8MB in the beginning and 131.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 712103.81ms. Allocated memory was 183.5MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 130.8MB in the beginning and 512.5MB in the end (delta: -381.8MB). Peak memory consumption was 738.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (13143states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 25 for 22ms.. - TimeoutResultAtElement [Line: 48]: 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 (13143states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 25 for 22ms.. - TimeoutResultAtElement [Line: 48]: 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 (13143states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 25 for 22ms.. - TimeoutResultAtElement [Line: 90]: 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 (13143states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 25 for 22ms.. - TimeoutResultAtElement [Line: 90]: 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 (13143states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 25 for 22ms.. - TimeoutResultAtElement [Line: 80]: 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 (13143states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 25 for 22ms.. - TimeoutResultAtElement [Line: 80]: 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 (13143states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 25 for 22ms.. - TimeoutResultAtElement [Line: 48]: 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 (13143states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 25 for 22ms.. - TimeoutResultAtElement [Line: 48]: 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 (13143states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 25 for 22ms.. - TimeoutResultAtElement [Line: 80]: 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 (13143states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 25 for 22ms.. - TimeoutResultAtElement [Line: 80]: 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 (13143states) and FLOYD_HOARE automaton (currently 28 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 25 for 22ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 112 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 712.0s, OverallIterations: 239, TraceHistogramMax: 1, PathProgramHistogramMax: 239, EmptinessCheckTime: 2.7s, AutomataDifference: 618.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 156382 SdHoareTripleChecker+Valid, 333.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156382 mSDsluCounter, 557126 SdHoareTripleChecker+Invalid, 277.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 860582 mSDsCounter, 24684 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1020283 IncrementalHoareTripleChecker+Invalid, 1044967 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24684 mSolverCounterUnsat, 50670 mSDtfsCounter, 1020283 mSolverCounterSat, 2.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17251 GetRequests, 274 SyntacticMatches, 525 SemanticMatches, 16451 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493786 ImplicationChecksByTransitivity, 286.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13143occurred in iteration=238, InterpolantAutomatonStates: 15405, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 32.3s AutomataMinimizationTime, 238 MinimizatonAttempts, 798658 StatesRemovedByMinimization, 236 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 56.5s InterpolantComputationTime, 11233 NumberOfCodeBlocks, 11233 NumberOfCodeBlocksAsserted, 239 NumberOfCheckSat, 10994 ConstructedInterpolants, 0 QuantifiedInterpolants, 142523 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 239 InterpolantComputations, 239 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