/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:35:38,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:35:38,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:35:38,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 17:35:38,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:35:38,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:35:38,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:35:38,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:35:38,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:35:38,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:35:38,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:35:38,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:35:38,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:35:38,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:35:38,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:35:38,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:35:38,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:35:38,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:35:38,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:35:38,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:35:38,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 17:35:38,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:35:38,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:35:38,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:35:38,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:35:38,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:35:38,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:35:38,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:35:38,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:35:38,886 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:35:38,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:35:38,888 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:35:38,889 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:35:38,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:35:38,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:35:38,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:35:38,890 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:35:38,890 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:35:38,890 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:35:38,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:35:38,890 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:35:38,891 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:35:38,891 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:35:38,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:35:38,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:35:38,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:35:38,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:35:38,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:35:38,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:35:38,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:35:38,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:35:38,893 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:35:39,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:35:39,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:35:39,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:35:39,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:35:39,428 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:35:39,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:35:39,532 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/723c2de49/b0ab6c9fb6b34f779f216469d6bf98d1/FLAGa656b36d1 [2022-10-15 17:35:40,384 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:35:40,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:35:40,399 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/723c2de49/b0ab6c9fb6b34f779f216469d6bf98d1/FLAGa656b36d1 [2022-10-15 17:35:40,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/723c2de49/b0ab6c9fb6b34f779f216469d6bf98d1 [2022-10-15 17:35:40,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:35:40,706 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:35:40,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:35:40,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:35:40,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:35:40,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:35:40" (1/1) ... [2022-10-15 17:35:40,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2975c08e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:40, skipping insertion in model container [2022-10-15 17:35:40,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:35:40" (1/1) ... [2022-10-15 17:35:40,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:35:40,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:35:41,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[5375,5388] [2022-10-15 17:35:41,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:35:41,208 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:35:41,258 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[5375,5388] [2022-10-15 17:35:41,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:35:41,310 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:35:41,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41 WrapperNode [2022-10-15 17:35:41,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:35:41,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:35:41,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:35:41,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:35:41,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41" (1/1) ... [2022-10-15 17:35:41,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41" (1/1) ... [2022-10-15 17:35:41,407 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 422 [2022-10-15 17:35:41,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:35:41,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:35:41,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:35:41,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:35:41,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41" (1/1) ... [2022-10-15 17:35:41,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41" (1/1) ... [2022-10-15 17:35:41,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41" (1/1) ... [2022-10-15 17:35:41,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41" (1/1) ... [2022-10-15 17:35:41,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41" (1/1) ... [2022-10-15 17:35:41,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41" (1/1) ... [2022-10-15 17:35:41,490 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41" (1/1) ... [2022-10-15 17:35:41,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41" (1/1) ... [2022-10-15 17:35:41,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:35:41,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:35:41,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:35:41,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:35:41,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41" (1/1) ... [2022-10-15 17:35:41,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:35:41,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:35:41,572 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) [2022-10-15 17:35:41,579 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 [2022-10-15 17:35:41,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:35:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:35:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:35:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:35:41,976 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:35:41,983 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:35:42,790 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:35:42,815 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:35:42,816 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:35:42,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:35:42 BoogieIcfgContainer [2022-10-15 17:35:42,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:35:42,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:35:42,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:35:42,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:35:42,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:35:40" (1/3) ... [2022-10-15 17:35:42,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616a6083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:35:42, skipping insertion in model container [2022-10-15 17:35:42,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:35:41" (2/3) ... [2022-10-15 17:35:42,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616a6083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:35:42, skipping insertion in model container [2022-10-15 17:35:42,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:35:42" (3/3) ... [2022-10-15 17:35:42,836 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:35:42,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:35:42,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:35:42,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:35:42,945 INFO L357 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@76b419c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:35:42,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:35:42,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 110 states have (on average 1.690909090909091) internal successors, (186), 112 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:42,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 17:35:42,969 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:35:42,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 17:35:42,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:35:42,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:35:42,985 INFO L85 PathProgramCache]: Analyzing trace with hash 939397, now seen corresponding path program 1 times [2022-10-15 17:35:42,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:35:42,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430821455] [2022-10-15 17:35:43,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:35:43,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:35:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:35:43,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:35:43,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:35:43,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430821455] [2022-10-15 17:35:43,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430821455] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:35:43,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:35:43,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:35:43,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066530506] [2022-10-15 17:35:43,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:35:43,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:35:43,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:35:43,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:35:43,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:35:43,418 INFO L87 Difference]: Start difference. First operand has 113 states, 110 states have (on average 1.690909090909091) internal successors, (186), 112 states have internal predecessors, (186), 0 states have call successors, (0), 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, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:43,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:35:43,478 INFO L93 Difference]: Finished difference Result 112 states and 184 transitions. [2022-10-15 17:35:43,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:35:43,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-15 17:35:43,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:35:43,496 INFO L225 Difference]: With dead ends: 112 [2022-10-15 17:35:43,497 INFO L226 Difference]: Without dead ends: 109 [2022-10-15 17:35:43,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:35:43,506 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 181 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:35:43,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 183 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:35:43,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-10-15 17:35:43,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2022-10-15 17:35:43,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.4537037037037037) internal successors, (157), 108 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2022-10-15 17:35:43,562 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 4 [2022-10-15 17:35:43,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:35:43,563 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2022-10-15 17:35:43,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:43,564 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2022-10-15 17:35:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-15 17:35:43,566 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:35:43,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:35:43,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:35:43,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:35:43,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:35:43,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2117585175, now seen corresponding path program 1 times [2022-10-15 17:35:43,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:35:43,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283794199] [2022-10-15 17:35:43,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:35:43,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:35:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:35:43,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:35:43,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:35:43,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283794199] [2022-10-15 17:35:43,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283794199] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:35:43,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:35:43,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:35:43,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052853501] [2022-10-15 17:35:43,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:35:43,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:35:43,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:35:43,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:35:43,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:35:43,798 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:43,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:35:43,843 INFO L93 Difference]: Finished difference Result 175 states and 260 transitions. [2022-10-15 17:35:43,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:35:43,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-10-15 17:35:43,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:35:43,848 INFO L225 Difference]: With dead ends: 175 [2022-10-15 17:35:43,849 INFO L226 Difference]: Without dead ends: 175 [2022-10-15 17:35:43,849 INFO L412 NwaCegarLoop]: 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 [2022-10-15 17:35:43,851 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 113 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:35:43,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 344 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:35:43,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-10-15 17:35:43,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2022-10-15 17:35:43,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 1.505813953488372) internal successors, (259), 172 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:43,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 259 transitions. [2022-10-15 17:35:43,877 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 259 transitions. Word has length 49 [2022-10-15 17:35:43,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:35:43,878 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 259 transitions. [2022-10-15 17:35:43,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:43,879 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 259 transitions. [2022-10-15 17:35:43,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-15 17:35:43,881 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:35:43,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:35:43,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:35:43,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:35:43,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:35:43,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1419109229, now seen corresponding path program 1 times [2022-10-15 17:35:43,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:35:43,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732584611] [2022-10-15 17:35:43,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:35:43,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:35:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:35:44,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:35:44,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:35:44,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732584611] [2022-10-15 17:35:44,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732584611] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:35:44,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:35:44,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:35:44,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977906848] [2022-10-15 17:35:44,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:35:44,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:35:44,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:35:44,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:35:44,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:35:44,136 INFO L87 Difference]: Start difference. First operand 173 states and 259 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:44,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:35:44,201 INFO L93 Difference]: Finished difference Result 287 states and 437 transitions. [2022-10-15 17:35:44,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:35:44,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-15 17:35:44,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:35:44,212 INFO L225 Difference]: With dead ends: 287 [2022-10-15 17:35:44,212 INFO L226 Difference]: Without dead ends: 287 [2022-10-15 17:35:44,214 INFO L412 NwaCegarLoop]: 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 [2022-10-15 17:35:44,218 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 108 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:35:44,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 329 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:35:44,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-10-15 17:35:44,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 285. [2022-10-15 17:35:44,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.5352112676056338) internal successors, (436), 284 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:44,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 436 transitions. [2022-10-15 17:35:44,281 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 436 transitions. Word has length 50 [2022-10-15 17:35:44,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:35:44,282 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 436 transitions. [2022-10-15 17:35:44,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 436 transitions. [2022-10-15 17:35:44,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-15 17:35:44,287 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:35:44,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:35:44,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:35:44,288 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:35:44,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:35:44,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1570665396, now seen corresponding path program 1 times [2022-10-15 17:35:44,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:35:44,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076996075] [2022-10-15 17:35:44,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:35:44,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:35:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:35:44,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:35:44,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:35:44,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076996075] [2022-10-15 17:35:44,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076996075] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:35:44,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:35:44,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:35:44,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495479610] [2022-10-15 17:35:44,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:35:44,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:35:44,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:35:44,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:35:44,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:35:44,440 INFO L87 Difference]: Start difference. First operand 285 states and 436 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:44,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:35:44,466 INFO L93 Difference]: Finished difference Result 479 states and 737 transitions. [2022-10-15 17:35:44,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:35:44,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-15 17:35:44,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:35:44,472 INFO L225 Difference]: With dead ends: 479 [2022-10-15 17:35:44,472 INFO L226 Difference]: Without dead ends: 479 [2022-10-15 17:35:44,473 INFO L412 NwaCegarLoop]: 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 [2022-10-15 17:35:44,475 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 103 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:35:44,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 314 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:35:44,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-10-15 17:35:44,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 477. [2022-10-15 17:35:44,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 476 states have (on average 1.546218487394958) internal successors, (736), 476 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:44,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 736 transitions. [2022-10-15 17:35:44,508 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 736 transitions. Word has length 51 [2022-10-15 17:35:44,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:35:44,509 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 736 transitions. [2022-10-15 17:35:44,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:44,511 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 736 transitions. [2022-10-15 17:35:44,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-15 17:35:44,516 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:35:44,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:35:44,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:35:44,517 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:35:44,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:35:44,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1205622842, now seen corresponding path program 1 times [2022-10-15 17:35:44,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:35:44,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329020575] [2022-10-15 17:35:44,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:35:44,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:35:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:35:44,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:35:44,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:35:44,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329020575] [2022-10-15 17:35:44,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329020575] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:35:44,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:35:44,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:35:44,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129406466] [2022-10-15 17:35:44,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:35:44,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:35:44,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:35:44,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:35:44,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:35:44,863 INFO L87 Difference]: Start difference. First operand 477 states and 736 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:45,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:35:45,076 INFO L93 Difference]: Finished difference Result 2277 states and 3556 transitions. [2022-10-15 17:35:45,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:35:45,077 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-10-15 17:35:45,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:35:45,096 INFO L225 Difference]: With dead ends: 2277 [2022-10-15 17:35:45,096 INFO L226 Difference]: Without dead ends: 2277 [2022-10-15 17:35:45,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:35:45,104 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 1016 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:35:45,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 1218 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:35:45,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2277 states. [2022-10-15 17:35:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2277 to 925. [2022-10-15 17:35:45,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 924 states have (on average 1.5454545454545454) internal successors, (1428), 924 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:45,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1428 transitions. [2022-10-15 17:35:45,166 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1428 transitions. Word has length 52 [2022-10-15 17:35:45,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:35:45,166 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1428 transitions. [2022-10-15 17:35:45,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:45,167 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1428 transitions. [2022-10-15 17:35:45,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-15 17:35:45,176 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:35:45,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:35:45,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:35:45,177 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:35:45,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:35:45,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1299853839, now seen corresponding path program 1 times [2022-10-15 17:35:45,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:35:45,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915225467] [2022-10-15 17:35:45,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:35:45,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:35:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:35:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:35:45,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:35:45,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915225467] [2022-10-15 17:35:45,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915225467] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:35:45,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:35:45,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:35:45,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183911779] [2022-10-15 17:35:45,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:35:45,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:35:45,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:35:45,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:35:45,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:35:45,534 INFO L87 Difference]: Start difference. First operand 925 states and 1428 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:45,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:35:45,678 INFO L93 Difference]: Finished difference Result 3131 states and 4815 transitions. [2022-10-15 17:35:45,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:35:45,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-15 17:35:45,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:35:45,699 INFO L225 Difference]: With dead ends: 3131 [2022-10-15 17:35:45,699 INFO L226 Difference]: Without dead ends: 3131 [2022-10-15 17:35:45,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:35:45,701 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 515 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:35:45,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 815 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:35:45,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2022-10-15 17:35:45,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 3125. [2022-10-15 17:35:45,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3124 states have (on average 1.5403329065300897) internal successors, (4812), 3124 states have internal predecessors, (4812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:45,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 4812 transitions. [2022-10-15 17:35:45,787 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 4812 transitions. Word has length 53 [2022-10-15 17:35:45,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:35:45,787 INFO L495 AbstractCegarLoop]: Abstraction has 3125 states and 4812 transitions. [2022-10-15 17:35:45,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:45,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 4812 transitions. [2022-10-15 17:35:45,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-15 17:35:45,789 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:35:45,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:35:45,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:35:45,790 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:35:45,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:35:45,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1774851107, now seen corresponding path program 1 times [2022-10-15 17:35:45,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:35:45,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586670205] [2022-10-15 17:35:45,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:35:45,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:35:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:35:45,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:35:45,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:35:45,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586670205] [2022-10-15 17:35:45,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586670205] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:35:45,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:35:45,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:35:45,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19423277] [2022-10-15 17:35:45,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:35:45,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:35:45,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:35:45,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:35:45,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:35:45,891 INFO L87 Difference]: Start difference. First operand 3125 states and 4812 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:45,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:35:45,939 INFO L93 Difference]: Finished difference Result 5151 states and 7805 transitions. [2022-10-15 17:35:45,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:35:45,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-15 17:35:45,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:35:45,969 INFO L225 Difference]: With dead ends: 5151 [2022-10-15 17:35:45,969 INFO L226 Difference]: Without dead ends: 5151 [2022-10-15 17:35:45,969 INFO L412 NwaCegarLoop]: 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 [2022-10-15 17:35:45,971 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 115 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:35:45,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 369 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:35:45,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5151 states. [2022-10-15 17:35:46,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5151 to 5149. [2022-10-15 17:35:46,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 1.5159285159285159) internal successors, (7804), 5148 states have internal predecessors, (7804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:46,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 7804 transitions. [2022-10-15 17:35:46,153 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 7804 transitions. Word has length 54 [2022-10-15 17:35:46,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:35:46,154 INFO L495 AbstractCegarLoop]: Abstraction has 5149 states and 7804 transitions. [2022-10-15 17:35:46,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:46,154 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 7804 transitions. [2022-10-15 17:35:46,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-15 17:35:46,155 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:35:46,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:35:46,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:35:46,156 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:35:46,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:35:46,157 INFO L85 PathProgramCache]: Analyzing trace with hash -850826877, now seen corresponding path program 1 times [2022-10-15 17:35:46,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:35:46,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836653025] [2022-10-15 17:35:46,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:35:46,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:35:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:35:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:35:46,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:35:46,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836653025] [2022-10-15 17:35:46,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836653025] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:35:46,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:35:46,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:35:46,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348279196] [2022-10-15 17:35:46,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:35:46,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:35:46,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:35:46,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:35:46,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:35:46,589 INFO L87 Difference]: Start difference. First operand 5149 states and 7804 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:46,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:35:46,693 INFO L93 Difference]: Finished difference Result 10525 states and 15708 transitions. [2022-10-15 17:35:46,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:35:46,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-10-15 17:35:46,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:35:46,751 INFO L225 Difference]: With dead ends: 10525 [2022-10-15 17:35:46,751 INFO L226 Difference]: Without dead ends: 10525 [2022-10-15 17:35:46,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:35:46,753 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 248 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:35:46,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 771 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:35:46,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10525 states. [2022-10-15 17:35:46,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10525 to 5405. [2022-10-15 17:35:46,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5405 states, 5404 states have (on average 1.4914877868245744) internal successors, (8060), 5404 states have internal predecessors, (8060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:46,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5405 states to 5405 states and 8060 transitions. [2022-10-15 17:35:46,993 INFO L78 Accepts]: Start accepts. Automaton has 5405 states and 8060 transitions. Word has length 55 [2022-10-15 17:35:46,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:35:46,994 INFO L495 AbstractCegarLoop]: Abstraction has 5405 states and 8060 transitions. [2022-10-15 17:35:46,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:46,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5405 states and 8060 transitions. [2022-10-15 17:35:46,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-15 17:35:46,995 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:35:46,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:35:46,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:35:46,996 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:35:46,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:35:46,997 INFO L85 PathProgramCache]: Analyzing trace with hash -595256360, now seen corresponding path program 1 times [2022-10-15 17:35:46,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:35:46,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631972060] [2022-10-15 17:35:46,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:35:46,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:35:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:35:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:35:47,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:35:47,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631972060] [2022-10-15 17:35:47,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631972060] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:35:47,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:35:47,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:35:47,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159449985] [2022-10-15 17:35:47,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:35:47,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:35:47,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:35:47,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:35:47,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:35:47,098 INFO L87 Difference]: Start difference. First operand 5405 states and 8060 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:47,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:35:47,166 INFO L93 Difference]: Finished difference Result 7881 states and 11643 transitions. [2022-10-15 17:35:47,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:35:47,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-15 17:35:47,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:35:47,217 INFO L225 Difference]: With dead ends: 7881 [2022-10-15 17:35:47,217 INFO L226 Difference]: Without dead ends: 7881 [2022-10-15 17:35:47,217 INFO L412 NwaCegarLoop]: 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 [2022-10-15 17:35:47,220 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 92 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:35:47,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 281 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:35:47,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7881 states. [2022-10-15 17:35:47,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7881 to 7823. [2022-10-15 17:35:47,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7823 states, 7822 states have (on average 1.4812068524673996) internal successors, (11586), 7822 states have internal predecessors, (11586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:47,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7823 states to 7823 states and 11586 transitions. [2022-10-15 17:35:47,525 INFO L78 Accepts]: Start accepts. Automaton has 7823 states and 11586 transitions. Word has length 56 [2022-10-15 17:35:47,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:35:47,526 INFO L495 AbstractCegarLoop]: Abstraction has 7823 states and 11586 transitions. [2022-10-15 17:35:47,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:35:47,526 INFO L276 IsEmpty]: Start isEmpty. Operand 7823 states and 11586 transitions. [2022-10-15 17:35:47,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:35:47,533 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:35:47,534 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:35:47,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:35:47,534 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:35:47,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:35:47,536 INFO L85 PathProgramCache]: Analyzing trace with hash -264442661, now seen corresponding path program 1 times [2022-10-15 17:35:47,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:35:47,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883049386] [2022-10-15 17:35:47,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:35:47,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:35:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:35:48,312 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:35:48,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:35:48,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883049386] [2022-10-15 17:35:48,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883049386] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:35:48,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53745344] [2022-10-15 17:35:48,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:35:48,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:35:48,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:35:48,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:35:48,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:35:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:35:48,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:35:48,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:35:48,936 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:35:48,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:35:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:35:49,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53745344] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:35:49,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:35:49,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 14 [2022-10-15 17:35:49,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879361641] [2022-10-15 17:35:49,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:35:49,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 17:35:49,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:35:49,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 17:35:49,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-10-15 17:35:49,217 INFO L87 Difference]: Start difference. First operand 7823 states and 11586 transitions. Second operand has 14 states, 14 states have (on average 16.071428571428573) internal successors, (225), 14 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:01,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:36:01,057 INFO L93 Difference]: Finished difference Result 156421 states and 222431 transitions. [2022-10-15 17:36:01,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-10-15 17:36:01,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.071428571428573) internal successors, (225), 14 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-10-15 17:36:01,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:36:01,734 INFO L225 Difference]: With dead ends: 156421 [2022-10-15 17:36:01,734 INFO L226 Difference]: Without dead ends: 156421 [2022-10-15 17:36:01,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8046 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=3160, Invalid=15200, Unknown=0, NotChecked=0, Total=18360 [2022-10-15 17:36:01,743 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 11525 mSDsluCounter, 3358 mSDsCounter, 0 mSdLazyCounter, 3608 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11525 SdHoareTripleChecker+Valid, 4004 SdHoareTripleChecker+Invalid, 3815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 3608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:36:01,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11525 Valid, 4004 Invalid, 3815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [207 Valid, 3608 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-10-15 17:36:01,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156421 states. [2022-10-15 17:36:04,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156421 to 53371. [2022-10-15 17:36:05,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53371 states, 53370 states have (on average 1.4388233089750797) internal successors, (76790), 53370 states have internal predecessors, (76790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:05,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53371 states to 53371 states and 76790 transitions. [2022-10-15 17:36:05,459 INFO L78 Accepts]: Start accepts. Automaton has 53371 states and 76790 transitions. Word has length 79 [2022-10-15 17:36:05,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:36:05,460 INFO L495 AbstractCegarLoop]: Abstraction has 53371 states and 76790 transitions. [2022-10-15 17:36:05,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.071428571428573) internal successors, (225), 14 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:05,462 INFO L276 IsEmpty]: Start isEmpty. Operand 53371 states and 76790 transitions. [2022-10-15 17:36:05,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:36:05,482 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:36:05,482 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:36:05,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 17:36:05,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-15 17:36:05,694 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:36:05,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:36:05,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2142394861, now seen corresponding path program 1 times [2022-10-15 17:36:05,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:36:05,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573035047] [2022-10-15 17:36:05,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:36:05,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:36:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:36:05,834 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:36:05,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:36:05,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573035047] [2022-10-15 17:36:05,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573035047] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:36:05,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:36:05,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:36:05,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104793008] [2022-10-15 17:36:05,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:36:05,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:36:05,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:36:05,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:36:05,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:36:05,839 INFO L87 Difference]: Start difference. First operand 53371 states and 76790 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:06,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:36:06,367 INFO L93 Difference]: Finished difference Result 82174 states and 117249 transitions. [2022-10-15 17:36:06,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:36:06,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-10-15 17:36:06,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:36:06,551 INFO L225 Difference]: With dead ends: 82174 [2022-10-15 17:36:06,552 INFO L226 Difference]: Without dead ends: 82174 [2022-10-15 17:36:06,552 INFO L412 NwaCegarLoop]: 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 [2022-10-15 17:36:06,555 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 93 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:36:06,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 383 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:36:06,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82174 states. [2022-10-15 17:36:08,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82174 to 82172. [2022-10-15 17:36:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82172 states, 82171 states have (on average 1.426878095678524) internal successors, (117248), 82171 states have internal predecessors, (117248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:08,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82172 states to 82172 states and 117248 transitions. [2022-10-15 17:36:08,683 INFO L78 Accepts]: Start accepts. Automaton has 82172 states and 117248 transitions. Word has length 79 [2022-10-15 17:36:08,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:36:08,683 INFO L495 AbstractCegarLoop]: Abstraction has 82172 states and 117248 transitions. [2022-10-15 17:36:08,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:08,684 INFO L276 IsEmpty]: Start isEmpty. Operand 82172 states and 117248 transitions. [2022-10-15 17:36:08,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:36:08,703 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:36:08,705 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:36:08,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:36:08,706 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:36:08,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:36:08,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1807198399, now seen corresponding path program 1 times [2022-10-15 17:36:08,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:36:08,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346095559] [2022-10-15 17:36:08,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:36:08,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:36:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:36:09,218 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:36:09,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:36:09,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346095559] [2022-10-15 17:36:09,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346095559] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:36:09,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:36:09,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:36:09,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038777086] [2022-10-15 17:36:09,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:36:09,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:36:09,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:36:09,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:36:09,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:36:09,223 INFO L87 Difference]: Start difference. First operand 82172 states and 117248 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:09,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:36:09,824 INFO L93 Difference]: Finished difference Result 117642 states and 165390 transitions. [2022-10-15 17:36:09,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:36:09,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-10-15 17:36:09,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:36:10,016 INFO L225 Difference]: With dead ends: 117642 [2022-10-15 17:36:10,016 INFO L226 Difference]: Without dead ends: 117642 [2022-10-15 17:36:10,016 INFO L412 NwaCegarLoop]: 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 [2022-10-15 17:36:10,017 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 93 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:36:10,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 336 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:36:10,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117642 states. [2022-10-15 17:36:11,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117642 to 108532. [2022-10-15 17:36:11,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108532 states, 108531 states have (on average 1.4119928868249625) internal successors, (153245), 108531 states have internal predecessors, (153245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108532 states to 108532 states and 153245 transitions. [2022-10-15 17:36:12,568 INFO L78 Accepts]: Start accepts. Automaton has 108532 states and 153245 transitions. Word has length 79 [2022-10-15 17:36:12,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:36:12,568 INFO L495 AbstractCegarLoop]: Abstraction has 108532 states and 153245 transitions. [2022-10-15 17:36:12,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:12,573 INFO L276 IsEmpty]: Start isEmpty. Operand 108532 states and 153245 transitions. [2022-10-15 17:36:12,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:36:12,640 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:36:12,640 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:36:12,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:36:12,641 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:36:12,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:36:12,645 INFO L85 PathProgramCache]: Analyzing trace with hash 611086120, now seen corresponding path program 1 times [2022-10-15 17:36:12,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:36:12,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596716461] [2022-10-15 17:36:12,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:36:12,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:36:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:36:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:36:12,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:36:12,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596716461] [2022-10-15 17:36:12,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596716461] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:36:12,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:36:12,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:36:12,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223988185] [2022-10-15 17:36:12,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:36:12,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:36:12,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:36:12,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:36:12,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:36:12,810 INFO L87 Difference]: Start difference. First operand 108532 states and 153245 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:13,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:36:13,198 INFO L93 Difference]: Finished difference Result 126216 states and 174939 transitions. [2022-10-15 17:36:13,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:36:13,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-10-15 17:36:13,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:36:13,483 INFO L225 Difference]: With dead ends: 126216 [2022-10-15 17:36:13,484 INFO L226 Difference]: Without dead ends: 114173 [2022-10-15 17:36:13,484 INFO L412 NwaCegarLoop]: 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 [2022-10-15 17:36:13,485 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 94 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:36:13,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 355 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:36:13,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114173 states. [2022-10-15 17:36:15,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114173 to 107558. [2022-10-15 17:36:15,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107558 states, 107557 states have (on average 1.3867437730691634) internal successors, (149154), 107557 states have internal predecessors, (149154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:15,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107558 states to 107558 states and 149154 transitions. [2022-10-15 17:36:15,816 INFO L78 Accepts]: Start accepts. Automaton has 107558 states and 149154 transitions. Word has length 79 [2022-10-15 17:36:15,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:36:15,816 INFO L495 AbstractCegarLoop]: Abstraction has 107558 states and 149154 transitions. [2022-10-15 17:36:15,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:15,817 INFO L276 IsEmpty]: Start isEmpty. Operand 107558 states and 149154 transitions. [2022-10-15 17:36:15,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:36:15,837 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:36:15,837 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:36:15,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:36:15,838 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:36:15,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:36:15,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1536259716, now seen corresponding path program 1 times [2022-10-15 17:36:15,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:36:15,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132180713] [2022-10-15 17:36:15,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:36:15,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:36:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:36:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 17:36:16,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:36:16,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132180713] [2022-10-15 17:36:16,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132180713] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:36:16,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:36:16,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:36:16,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712210967] [2022-10-15 17:36:16,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:36:16,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:36:16,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:36:16,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:36:16,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:36:16,023 INFO L87 Difference]: Start difference. First operand 107558 states and 149154 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:17,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:36:17,465 INFO L93 Difference]: Finished difference Result 189612 states and 263727 transitions. [2022-10-15 17:36:17,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:36:17,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-10-15 17:36:17,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:36:17,923 INFO L225 Difference]: With dead ends: 189612 [2022-10-15 17:36:17,923 INFO L226 Difference]: Without dead ends: 189135 [2022-10-15 17:36:17,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:36:17,924 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 743 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:36:17,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1041 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:36:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189135 states. [2022-10-15 17:36:20,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189135 to 147047. [2022-10-15 17:36:20,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147047 states, 147046 states have (on average 1.3831930144308584) internal successors, (203393), 147046 states have internal predecessors, (203393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:21,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147047 states to 147047 states and 203393 transitions. [2022-10-15 17:36:21,850 INFO L78 Accepts]: Start accepts. Automaton has 147047 states and 203393 transitions. Word has length 79 [2022-10-15 17:36:21,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:36:21,850 INFO L495 AbstractCegarLoop]: Abstraction has 147047 states and 203393 transitions. [2022-10-15 17:36:21,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:21,851 INFO L276 IsEmpty]: Start isEmpty. Operand 147047 states and 203393 transitions. [2022-10-15 17:36:21,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:36:21,869 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:36:21,869 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:36:21,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:36:21,870 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:36:21,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:36:21,871 INFO L85 PathProgramCache]: Analyzing trace with hash -259731985, now seen corresponding path program 1 times [2022-10-15 17:36:21,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:36:21,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487278801] [2022-10-15 17:36:21,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:36:21,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:36:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:36:22,092 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:36:22,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:36:22,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487278801] [2022-10-15 17:36:22,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487278801] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:36:22,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:36:22,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:36:22,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233018861] [2022-10-15 17:36:22,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:36:22,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:36:22,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:36:22,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:36:22,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:36:22,098 INFO L87 Difference]: Start difference. First operand 147047 states and 203393 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:36:24,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:36:24,043 INFO L93 Difference]: Finished difference Result 223932 states and 311294 transitions. [2022-10-15 17:36:24,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:36:24,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-10-15 17:36:24,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:36:24,628 INFO L225 Difference]: With dead ends: 223932 [2022-10-15 17:36:24,629 INFO L226 Difference]: Without dead ends: 223919 [2022-10-15 17:36:24,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:36:24,633 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 796 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:36:24,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 920 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:36:24,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223919 states.