/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.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:39:20,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:39:20,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:39:20,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 17:39:20,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:39:20,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:39:20,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:39:20,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:39:20,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:39:20,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:39:20,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:39:20,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:39:20,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:39:20,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:39:20,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:39:20,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:39:20,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:39:20,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:39:20,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:39:20,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:39:20,437 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 17:39:20,497 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:39:20,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:39:20,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:39:20,498 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:39:20,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:39:20,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:39:20,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:39:20,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:39:20,503 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:39:20,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:39:20,504 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:39:20,505 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:39:20,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:39:20,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:39:20,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:39:20,506 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:39:20,506 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:39:20,506 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:39:20,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:39:20,506 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:39:20,507 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:39:20,507 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:39:20,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:39:20,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:39:20,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:39:20,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:39:20,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:39:20,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:39:20,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:39:20,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:39:20,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:39:20,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:39:20,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:39:20,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:39:20,936 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:39:20,936 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:39:20,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-10-15 17:39:21,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d953076d8/7f299b7c32a84667a73970af89a2386f/FLAG32edba45d [2022-10-15 17:39:21,656 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:39:21,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-10-15 17:39:21,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d953076d8/7f299b7c32a84667a73970af89a2386f/FLAG32edba45d [2022-10-15 17:39:21,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d953076d8/7f299b7c32a84667a73970af89a2386f [2022-10-15 17:39:21,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:39:21,999 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:39:22,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:39:22,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:39:22,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:39:22,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:39:21" (1/1) ... [2022-10-15 17:39:22,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bab83a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22, skipping insertion in model container [2022-10-15 17:39:22,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:39:21" (1/1) ... [2022-10-15 17:39:22,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:39:22,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:39:22,300 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.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6638,6651] [2022-10-15 17:39:22,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:39:22,356 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:39:22,404 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.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6638,6651] [2022-10-15 17:39:22,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:39:22,485 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:39:22,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22 WrapperNode [2022-10-15 17:39:22,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:39:22,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:39:22,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:39:22,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:39:22,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22" (1/1) ... [2022-10-15 17:39:22,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22" (1/1) ... [2022-10-15 17:39:22,554 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 516 [2022-10-15 17:39:22,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:39:22,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:39:22,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:39:22,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:39:22,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22" (1/1) ... [2022-10-15 17:39:22,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22" (1/1) ... [2022-10-15 17:39:22,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22" (1/1) ... [2022-10-15 17:39:22,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22" (1/1) ... [2022-10-15 17:39:22,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22" (1/1) ... [2022-10-15 17:39:22,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22" (1/1) ... [2022-10-15 17:39:22,590 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22" (1/1) ... [2022-10-15 17:39:22,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22" (1/1) ... [2022-10-15 17:39:22,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:39:22,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:39:22,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:39:22,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:39:22,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22" (1/1) ... [2022-10-15 17:39:22,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:39:22,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:39:22,638 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 17:39:22,664 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 17:39:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:39:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:39:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:39:22,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:39:22,924 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:39:22,926 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:39:23,512 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:39:23,529 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:39:23,530 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:39:23,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:39:23 BoogieIcfgContainer [2022-10-15 17:39:23,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:39:23,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:39:23,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:39:23,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:39:23,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:39:21" (1/3) ... [2022-10-15 17:39:23,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd81c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:39:23, skipping insertion in model container [2022-10-15 17:39:23,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:22" (2/3) ... [2022-10-15 17:39:23,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd81c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:39:23, skipping insertion in model container [2022-10-15 17:39:23,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:39:23" (3/3) ... [2022-10-15 17:39:23,545 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-10-15 17:39:23,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:39:23,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:39:23,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:39:23,666 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;@60cf93f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:39:23,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:39:23,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 121 states have (on average 1.7520661157024793) internal successors, (212), 123 states have internal predecessors, (212), 0 states have call successors, (0), 0 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 17:39:23,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 17:39:23,701 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:23,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 17:39:23,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:23,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:23,711 INFO L85 PathProgramCache]: Analyzing trace with hash 941573, now seen corresponding path program 1 times [2022-10-15 17:39:23,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:23,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083410643] [2022-10-15 17:39:23,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:23,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:23,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:23,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:23,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083410643] [2022-10-15 17:39:23,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083410643] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:23,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:23,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:39:23,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440855853] [2022-10-15 17:39:23,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:23,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:39:23,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:24,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:39:24,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:39:24,028 INFO L87 Difference]: Start difference. First operand has 124 states, 121 states have (on average 1.7520661157024793) internal successors, (212), 123 states have internal predecessors, (212), 0 states have call successors, (0), 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 17:39:24,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:24,072 INFO L93 Difference]: Finished difference Result 123 states and 210 transitions. [2022-10-15 17:39:24,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:39:24,075 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 17:39:24,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:24,087 INFO L225 Difference]: With dead ends: 123 [2022-10-15 17:39:24,087 INFO L226 Difference]: Without dead ends: 120 [2022-10-15 17:39:24,089 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 17:39:24,093 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 207 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 209 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 17:39:24,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 209 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:39:24,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-15 17:39:24,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-10-15 17:39:24,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.3949579831932772) internal successors, (166), 119 states have internal predecessors, (166), 0 states have call successors, (0), 0 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 17:39:24,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 166 transitions. [2022-10-15 17:39:24,143 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 166 transitions. Word has length 4 [2022-10-15 17:39:24,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:24,143 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 166 transitions. [2022-10-15 17:39:24,144 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 17:39:24,144 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 166 transitions. [2022-10-15 17:39:24,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-15 17:39:24,146 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:24,147 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, 1, 1, 1, 1, 1] [2022-10-15 17:39:24,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:39:24,147 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:24,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:24,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1503533793, now seen corresponding path program 1 times [2022-10-15 17:39:24,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:24,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486420938] [2022-10-15 17:39:24,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:24,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:24,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:24,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:24,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486420938] [2022-10-15 17:39:24,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486420938] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:24,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:24,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:39:24,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218791185] [2022-10-15 17:39:24,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:24,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:39:24,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:24,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:39:24,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:24,701 INFO L87 Difference]: Start difference. First operand 120 states and 166 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 17:39:25,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:25,042 INFO L93 Difference]: Finished difference Result 518 states and 784 transitions. [2022-10-15 17:39:25,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:39:25,043 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-10-15 17:39:25,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:25,054 INFO L225 Difference]: With dead ends: 518 [2022-10-15 17:39:25,054 INFO L226 Difference]: Without dead ends: 518 [2022-10-15 17:39:25,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:39:25,061 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 915 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:25,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 1009 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:39:25,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-10-15 17:39:25,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 186. [2022-10-15 17:39:25,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.4594594594594594) internal successors, (270), 185 states have internal predecessors, (270), 0 states have call successors, (0), 0 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 17:39:25,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 270 transitions. [2022-10-15 17:39:25,116 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 270 transitions. Word has length 61 [2022-10-15 17:39:25,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:25,120 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 270 transitions. [2022-10-15 17:39:25,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 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 17:39:25,120 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 270 transitions. [2022-10-15 17:39:25,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:39:25,124 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:25,124 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:25,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:39:25,126 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:25,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:25,127 INFO L85 PathProgramCache]: Analyzing trace with hash -886934908, now seen corresponding path program 1 times [2022-10-15 17:39:25,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:25,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288357369] [2022-10-15 17:39:25,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:25,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:25,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:25,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:25,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288357369] [2022-10-15 17:39:25,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288357369] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:25,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:25,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:39:25,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864067874] [2022-10-15 17:39:25,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:25,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:39:25,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:25,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:39:25,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:25,466 INFO L87 Difference]: Start difference. First operand 186 states and 270 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 17:39:25,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:25,604 INFO L93 Difference]: Finished difference Result 562 states and 859 transitions. [2022-10-15 17:39:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:39:25,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:39:25,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:25,609 INFO L225 Difference]: With dead ends: 562 [2022-10-15 17:39:25,609 INFO L226 Difference]: Without dead ends: 562 [2022-10-15 17:39:25,609 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 17:39:25,611 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 606 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:25,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 838 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:25,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-10-15 17:39:25,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 292. [2022-10-15 17:39:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 291 states have (on average 1.5051546391752577) internal successors, (438), 291 states have internal predecessors, (438), 0 states have call successors, (0), 0 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 17:39:25,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 438 transitions. [2022-10-15 17:39:25,629 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 438 transitions. Word has length 63 [2022-10-15 17:39:25,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:25,629 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 438 transitions. [2022-10-15 17:39:25,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 17:39:25,630 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 438 transitions. [2022-10-15 17:39:25,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:39:25,632 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:25,632 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:25,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:39:25,633 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:25,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:25,633 INFO L85 PathProgramCache]: Analyzing trace with hash 497894544, now seen corresponding path program 1 times [2022-10-15 17:39:25,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:25,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181894509] [2022-10-15 17:39:25,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:25,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:25,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:25,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:25,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181894509] [2022-10-15 17:39:25,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181894509] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:25,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:25,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:39:25,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688357352] [2022-10-15 17:39:25,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:25,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:39:25,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:25,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:39:25,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:25,942 INFO L87 Difference]: Start difference. First operand 292 states and 438 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 17:39:26,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:26,075 INFO L93 Difference]: Finished difference Result 663 states and 1019 transitions. [2022-10-15 17:39:26,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:39:26,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:39:26,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:26,080 INFO L225 Difference]: With dead ends: 663 [2022-10-15 17:39:26,081 INFO L226 Difference]: Without dead ends: 663 [2022-10-15 17:39:26,081 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 17:39:26,082 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 685 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:26,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 756 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:26,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2022-10-15 17:39:26,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 443. [2022-10-15 17:39:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 442 states have (on average 1.5316742081447965) internal successors, (677), 442 states have internal predecessors, (677), 0 states have call successors, (0), 0 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 17:39:26,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 677 transitions. [2022-10-15 17:39:26,100 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 677 transitions. Word has length 63 [2022-10-15 17:39:26,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:26,101 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 677 transitions. [2022-10-15 17:39:26,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 17:39:26,101 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 677 transitions. [2022-10-15 17:39:26,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:39:26,103 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:26,104 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:26,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:39:26,104 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:26,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:26,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1329115962, now seen corresponding path program 1 times [2022-10-15 17:39:26,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:26,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108810716] [2022-10-15 17:39:26,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:26,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:26,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:26,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:26,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108810716] [2022-10-15 17:39:26,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108810716] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:26,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:26,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:39:26,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331056323] [2022-10-15 17:39:26,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:26,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:39:26,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:26,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:39:26,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:39:26,220 INFO L87 Difference]: Start difference. First operand 443 states and 677 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 17:39:26,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:26,253 INFO L93 Difference]: Finished difference Result 750 states and 1142 transitions. [2022-10-15 17:39:26,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:39:26,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:39:26,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:26,259 INFO L225 Difference]: With dead ends: 750 [2022-10-15 17:39:26,259 INFO L226 Difference]: Without dead ends: 750 [2022-10-15 17:39:26,259 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 17:39:26,263 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 68 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:26,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 380 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:39:26,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-10-15 17:39:26,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 734. [2022-10-15 17:39:26,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 733 states have (on average 1.5279672578444747) internal successors, (1120), 733 states have internal predecessors, (1120), 0 states have call successors, (0), 0 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 17:39:26,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1120 transitions. [2022-10-15 17:39:26,290 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1120 transitions. Word has length 63 [2022-10-15 17:39:26,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:26,291 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1120 transitions. [2022-10-15 17:39:26,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 17:39:26,291 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1120 transitions. [2022-10-15 17:39:26,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:39:26,297 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:26,298 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:26,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:39:26,299 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:26,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:26,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1501695225, now seen corresponding path program 1 times [2022-10-15 17:39:26,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:26,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414489956] [2022-10-15 17:39:26,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:26,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:26,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:26,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:26,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414489956] [2022-10-15 17:39:26,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414489956] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:26,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:26,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:39:26,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348275534] [2022-10-15 17:39:26,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:26,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:39:26,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:26,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:39:26,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:26,719 INFO L87 Difference]: Start difference. First operand 734 states and 1120 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 17:39:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:26,845 INFO L93 Difference]: Finished difference Result 736 states and 1117 transitions. [2022-10-15 17:39:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:39:26,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:39:26,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:26,851 INFO L225 Difference]: With dead ends: 736 [2022-10-15 17:39:26,851 INFO L226 Difference]: Without dead ends: 736 [2022-10-15 17:39:26,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:39:26,856 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 429 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:26,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 526 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:26,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-10-15 17:39:26,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 734. [2022-10-15 17:39:26,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 733 states have (on average 1.5225102319236017) internal successors, (1116), 733 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 17:39:26,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1116 transitions. [2022-10-15 17:39:26,877 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1116 transitions. Word has length 63 [2022-10-15 17:39:26,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:26,877 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1116 transitions. [2022-10-15 17:39:26,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 17:39:26,878 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1116 transitions. [2022-10-15 17:39:26,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:39:26,879 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:26,879 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:26,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:39:26,879 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:26,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:26,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1505725276, now seen corresponding path program 1 times [2022-10-15 17:39:26,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:26,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399476354] [2022-10-15 17:39:26,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:26,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:27,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:27,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399476354] [2022-10-15 17:39:27,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399476354] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:27,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:27,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:39:27,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965730022] [2022-10-15 17:39:27,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:27,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:39:27,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:27,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:39:27,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:27,039 INFO L87 Difference]: Start difference. First operand 734 states and 1116 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 17:39:27,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:27,184 INFO L93 Difference]: Finished difference Result 1309 states and 2003 transitions. [2022-10-15 17:39:27,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:39:27,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:39:27,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:27,192 INFO L225 Difference]: With dead ends: 1309 [2022-10-15 17:39:27,192 INFO L226 Difference]: Without dead ends: 1309 [2022-10-15 17:39:27,192 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 17:39:27,193 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 656 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:27,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 984 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:27,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2022-10-15 17:39:27,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 928. [2022-10-15 17:39:27,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 927 states have (on average 1.528586839266451) internal successors, (1417), 927 states have internal predecessors, (1417), 0 states have call successors, (0), 0 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 17:39:27,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1417 transitions. [2022-10-15 17:39:27,222 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1417 transitions. Word has length 63 [2022-10-15 17:39:27,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:27,222 INFO L495 AbstractCegarLoop]: Abstraction has 928 states and 1417 transitions. [2022-10-15 17:39:27,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 17:39:27,223 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1417 transitions. [2022-10-15 17:39:27,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:39:27,223 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:27,224 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:27,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:39:27,224 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:27,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:27,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1830608528, now seen corresponding path program 1 times [2022-10-15 17:39:27,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:27,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179845309] [2022-10-15 17:39:27,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:27,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:27,377 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 17:39:27,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:27,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179845309] [2022-10-15 17:39:27,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179845309] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:27,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:27,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:39:27,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530754604] [2022-10-15 17:39:27,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:27,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:39:27,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:27,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:39:27,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:27,380 INFO L87 Difference]: Start difference. First operand 928 states and 1417 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 17:39:27,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:27,494 INFO L93 Difference]: Finished difference Result 1503 states and 2304 transitions. [2022-10-15 17:39:27,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:39:27,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:39:27,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:27,502 INFO L225 Difference]: With dead ends: 1503 [2022-10-15 17:39:27,502 INFO L226 Difference]: Without dead ends: 1503 [2022-10-15 17:39:27,503 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 17:39:27,503 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 660 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:27,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 774 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:27,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2022-10-15 17:39:27,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1122. [2022-10-15 17:39:27,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 1.5325602140945584) internal successors, (1718), 1121 states have internal predecessors, (1718), 0 states have call successors, (0), 0 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 17:39:27,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1718 transitions. [2022-10-15 17:39:27,535 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1718 transitions. Word has length 63 [2022-10-15 17:39:27,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:27,535 INFO L495 AbstractCegarLoop]: Abstraction has 1122 states and 1718 transitions. [2022-10-15 17:39:27,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 17:39:27,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1718 transitions. [2022-10-15 17:39:27,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-15 17:39:27,537 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:27,537 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:27,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:39:27,537 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:27,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:27,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1584928427, now seen corresponding path program 1 times [2022-10-15 17:39:27,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:27,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105901765] [2022-10-15 17:39:27,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:27,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:27,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:27,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:27,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105901765] [2022-10-15 17:39:27,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105901765] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:27,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:27,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:39:27,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986683006] [2022-10-15 17:39:27,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:27,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:39:27,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:27,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:39:27,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:39:27,655 INFO L87 Difference]: Start difference. First operand 1122 states and 1718 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 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 17:39:27,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:27,837 INFO L93 Difference]: Finished difference Result 2171 states and 3321 transitions. [2022-10-15 17:39:27,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:39:27,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-10-15 17:39:27,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:27,854 INFO L225 Difference]: With dead ends: 2171 [2022-10-15 17:39:27,855 INFO L226 Difference]: Without dead ends: 2171 [2022-10-15 17:39:27,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:39:27,856 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 659 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:27,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 148 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:27,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2022-10-15 17:39:27,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 2169. [2022-10-15 17:39:27,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2168 states have (on average 1.5313653136531364) internal successors, (3320), 2168 states have internal predecessors, (3320), 0 states have call successors, (0), 0 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 17:39:27,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3320 transitions. [2022-10-15 17:39:27,926 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3320 transitions. Word has length 64 [2022-10-15 17:39:27,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:27,927 INFO L495 AbstractCegarLoop]: Abstraction has 2169 states and 3320 transitions. [2022-10-15 17:39:27,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 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 17:39:27,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3320 transitions. [2022-10-15 17:39:27,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:39:27,928 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:27,929 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:27,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:39:27,929 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:27,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:27,930 INFO L85 PathProgramCache]: Analyzing trace with hash -747879712, now seen corresponding path program 1 times [2022-10-15 17:39:27,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:27,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894801641] [2022-10-15 17:39:27,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:27,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:28,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:28,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:28,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894801641] [2022-10-15 17:39:28,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894801641] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:28,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:28,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:39:28,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306380214] [2022-10-15 17:39:28,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:28,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:39:28,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:28,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:39:28,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:39:28,050 INFO L87 Difference]: Start difference. First operand 2169 states and 3320 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 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 17:39:28,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:28,157 INFO L93 Difference]: Finished difference Result 2169 states and 3275 transitions. [2022-10-15 17:39:28,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:39:28,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-15 17:39:28,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:28,167 INFO L225 Difference]: With dead ends: 2169 [2022-10-15 17:39:28,167 INFO L226 Difference]: Without dead ends: 2169 [2022-10-15 17:39:28,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:39:28,169 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 414 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:28,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 115 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:28,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2022-10-15 17:39:28,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 2169. [2022-10-15 17:39:28,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2168 states have (on average 1.5106088560885609) internal successors, (3275), 2168 states have internal predecessors, (3275), 0 states have call successors, (0), 0 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 17:39:28,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3275 transitions. [2022-10-15 17:39:28,222 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3275 transitions. Word has length 65 [2022-10-15 17:39:28,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:28,222 INFO L495 AbstractCegarLoop]: Abstraction has 2169 states and 3275 transitions. [2022-10-15 17:39:28,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 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 17:39:28,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3275 transitions. [2022-10-15 17:39:28,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 17:39:28,224 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:28,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:28,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:39:28,224 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:28,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:28,225 INFO L85 PathProgramCache]: Analyzing trace with hash 431205441, now seen corresponding path program 1 times [2022-10-15 17:39:28,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:28,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32442794] [2022-10-15 17:39:28,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:28,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:28,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:28,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32442794] [2022-10-15 17:39:28,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32442794] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:28,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:28,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:39:28,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967822275] [2022-10-15 17:39:28,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:28,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:39:28,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:28,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:39:28,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:39:28,340 INFO L87 Difference]: Start difference. First operand 2169 states and 3275 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 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 17:39:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:28,446 INFO L93 Difference]: Finished difference Result 2169 states and 3230 transitions. [2022-10-15 17:39:28,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:39:28,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-10-15 17:39:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:28,456 INFO L225 Difference]: With dead ends: 2169 [2022-10-15 17:39:28,457 INFO L226 Difference]: Without dead ends: 2169 [2022-10-15 17:39:28,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:39:28,458 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 430 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:28,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 99 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:28,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2022-10-15 17:39:28,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 2169. [2022-10-15 17:39:28,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2168 states have (on average 1.4898523985239853) internal successors, (3230), 2168 states have internal predecessors, (3230), 0 states have call successors, (0), 0 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 17:39:28,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3230 transitions. [2022-10-15 17:39:28,510 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3230 transitions. Word has length 66 [2022-10-15 17:39:28,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:28,510 INFO L495 AbstractCegarLoop]: Abstraction has 2169 states and 3230 transitions. [2022-10-15 17:39:28,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 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 17:39:28,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3230 transitions. [2022-10-15 17:39:28,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 17:39:28,512 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:28,512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:28,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:39:28,512 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:28,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:28,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1430381312, now seen corresponding path program 1 times [2022-10-15 17:39:28,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:28,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403313858] [2022-10-15 17:39:28,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:28,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:28,659 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 17:39:28,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:28,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403313858] [2022-10-15 17:39:28,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403313858] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:28,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:28,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:39:28,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274660572] [2022-10-15 17:39:28,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:28,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:39:28,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:28,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:39:28,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:39:28,662 INFO L87 Difference]: Start difference. First operand 2169 states and 3230 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 17:39:28,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:28,768 INFO L93 Difference]: Finished difference Result 2169 states and 3185 transitions. [2022-10-15 17:39:28,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:39:28,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-10-15 17:39:28,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:28,778 INFO L225 Difference]: With dead ends: 2169 [2022-10-15 17:39:28,779 INFO L226 Difference]: Without dead ends: 2169 [2022-10-15 17:39:28,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:39:28,780 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 412 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:28,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 107 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:28,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2022-10-15 17:39:28,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 2169. [2022-10-15 17:39:28,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2168 states have (on average 1.4690959409594095) internal successors, (3185), 2168 states have internal predecessors, (3185), 0 states have call successors, (0), 0 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 17:39:28,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3185 transitions. [2022-10-15 17:39:28,838 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3185 transitions. Word has length 67 [2022-10-15 17:39:28,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:28,839 INFO L495 AbstractCegarLoop]: Abstraction has 2169 states and 3185 transitions. [2022-10-15 17:39:28,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 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 17:39:28,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3185 transitions. [2022-10-15 17:39:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-15 17:39:28,840 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:28,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:28,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:39:28,841 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:28,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:28,842 INFO L85 PathProgramCache]: Analyzing trace with hash -654863315, now seen corresponding path program 1 times [2022-10-15 17:39:28,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:28,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970642991] [2022-10-15 17:39:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:28,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:29,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:29,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970642991] [2022-10-15 17:39:29,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970642991] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:29,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:29,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-15 17:39:29,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158641434] [2022-10-15 17:39:29,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:29,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 17:39:29,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:29,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 17:39:29,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:39:29,461 INFO L87 Difference]: Start difference. First operand 2169 states and 3185 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 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 17:39:30,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:30,142 INFO L93 Difference]: Finished difference Result 3306 states and 4807 transitions. [2022-10-15 17:39:30,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:39:30,142 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-10-15 17:39:30,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:30,158 INFO L225 Difference]: With dead ends: 3306 [2022-10-15 17:39:30,159 INFO L226 Difference]: Without dead ends: 3306 [2022-10-15 17:39:30,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-10-15 17:39:30,160 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 1176 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:30,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 355 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:39:30,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3306 states. [2022-10-15 17:39:30,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3306 to 2169. [2022-10-15 17:39:30,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2168 states have (on average 1.4677121771217712) internal successors, (3182), 2168 states have internal predecessors, (3182), 0 states have call successors, (0), 0 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 17:39:30,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3182 transitions. [2022-10-15 17:39:30,231 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3182 transitions. Word has length 68 [2022-10-15 17:39:30,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:30,232 INFO L495 AbstractCegarLoop]: Abstraction has 2169 states and 3182 transitions. [2022-10-15 17:39:30,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 states have internal predecessors, (68), 0 states have call successors, (0), 0 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 17:39:30,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3182 transitions. [2022-10-15 17:39:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 17:39:30,233 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:30,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:30,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:39:30,234 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:30,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:30,234 INFO L85 PathProgramCache]: Analyzing trace with hash 302063151, now seen corresponding path program 1 times [2022-10-15 17:39:30,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:30,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466525771] [2022-10-15 17:39:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:30,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:30,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:30,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:30,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466525771] [2022-10-15 17:39:30,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466525771] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:30,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:30,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-15 17:39:30,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482895474] [2022-10-15 17:39:30,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:30,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 17:39:30,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:30,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 17:39:30,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:39:30,802 INFO L87 Difference]: Start difference. First operand 2169 states and 3182 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 17:39:31,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:31,521 INFO L93 Difference]: Finished difference Result 4327 states and 6317 transitions. [2022-10-15 17:39:31,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:39:31,522 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-10-15 17:39:31,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:31,541 INFO L225 Difference]: With dead ends: 4327 [2022-10-15 17:39:31,541 INFO L226 Difference]: Without dead ends: 4327 [2022-10-15 17:39:31,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-10-15 17:39:31,542 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 1055 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:31,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 484 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:39:31,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4327 states. [2022-10-15 17:39:31,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4327 to 2169. [2022-10-15 17:39:31,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2168 states have (on average 1.4649446494464944) internal successors, (3176), 2168 states have internal predecessors, (3176), 0 states have call successors, (0), 0 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 17:39:31,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3176 transitions. [2022-10-15 17:39:31,619 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3176 transitions. Word has length 69 [2022-10-15 17:39:31,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:31,619 INFO L495 AbstractCegarLoop]: Abstraction has 2169 states and 3176 transitions. [2022-10-15 17:39:31,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 17:39:31,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3176 transitions. [2022-10-15 17:39:31,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 17:39:31,621 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:31,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:31,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:39:31,621 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:31,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:31,622 INFO L85 PathProgramCache]: Analyzing trace with hash 69264625, now seen corresponding path program 1 times [2022-10-15 17:39:31,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:31,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210204318] [2022-10-15 17:39:31,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:31,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:32,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:32,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:32,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210204318] [2022-10-15 17:39:32,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210204318] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:32,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:32,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-15 17:39:32,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691607336] [2022-10-15 17:39:32,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:32,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 17:39:32,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:32,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 17:39:32,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:39:32,144 INFO L87 Difference]: Start difference. First operand 2169 states and 3176 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 17:39:32,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:32,873 INFO L93 Difference]: Finished difference Result 4312 states and 6281 transitions. [2022-10-15 17:39:32,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:39:32,874 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-10-15 17:39:32,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:32,903 INFO L225 Difference]: With dead ends: 4312 [2022-10-15 17:39:32,903 INFO L226 Difference]: Without dead ends: 4312 [2022-10-15 17:39:32,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-10-15 17:39:32,906 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 880 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:32,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 514 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:39:32,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4312 states. [2022-10-15 17:39:32,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4312 to 2169. [2022-10-15 17:39:32,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2168 states have (on average 1.4607933579335792) internal successors, (3167), 2168 states have internal predecessors, (3167), 0 states have call successors, (0), 0 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 17:39:32,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3167 transitions. [2022-10-15 17:39:32,986 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3167 transitions. Word has length 69 [2022-10-15 17:39:32,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:32,987 INFO L495 AbstractCegarLoop]: Abstraction has 2169 states and 3167 transitions. [2022-10-15 17:39:32,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 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 17:39:32,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3167 transitions. [2022-10-15 17:39:32,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-15 17:39:32,988 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:32,988 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:32,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:39:32,989 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:32,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:32,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1288867045, now seen corresponding path program 1 times [2022-10-15 17:39:32,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:32,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645582433] [2022-10-15 17:39:32,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:32,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:33,455 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 17:39:33,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:33,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645582433] [2022-10-15 17:39:33,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645582433] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:33,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:33,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:39:33,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535912922] [2022-10-15 17:39:33,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:33,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 17:39:33,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:33,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 17:39:33,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:39:33,458 INFO L87 Difference]: Start difference. First operand 2169 states and 3167 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 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 17:39:33,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:33,945 INFO L93 Difference]: Finished difference Result 4194 states and 6150 transitions. [2022-10-15 17:39:33,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:39:33,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-10-15 17:39:33,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:33,957 INFO L225 Difference]: With dead ends: 4194 [2022-10-15 17:39:33,957 INFO L226 Difference]: Without dead ends: 4194 [2022-10-15 17:39:33,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:39:33,958 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 777 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:33,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 450 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:39:33,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4194 states. [2022-10-15 17:39:34,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4194 to 2169. [2022-10-15 17:39:34,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2169 states, 2168 states have (on average 1.4603321033210332) internal successors, (3166), 2168 states have internal predecessors, (3166), 0 states have call successors, (0), 0 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 17:39:34,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3166 transitions. [2022-10-15 17:39:34,025 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3166 transitions. Word has length 70 [2022-10-15 17:39:34,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:34,025 INFO L495 AbstractCegarLoop]: Abstraction has 2169 states and 3166 transitions. [2022-10-15 17:39:34,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 0 states have call successors, (0), 0 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 17:39:34,025 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3166 transitions. [2022-10-15 17:39:34,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 17:39:34,028 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:34,028 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:34,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:39:34,029 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:34,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:34,029 INFO L85 PathProgramCache]: Analyzing trace with hash -425050317, now seen corresponding path program 1 times [2022-10-15 17:39:34,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:34,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925765875] [2022-10-15 17:39:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:34,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:34,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:34,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:34,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925765875] [2022-10-15 17:39:34,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925765875] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:34,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:34,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-15 17:39:34,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151472121] [2022-10-15 17:39:34,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:34,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 17:39:34,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:34,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 17:39:34,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:39:34,726 INFO L87 Difference]: Start difference. First operand 2169 states and 3166 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 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 17:39:36,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:36,022 INFO L93 Difference]: Finished difference Result 8204 states and 12069 transitions. [2022-10-15 17:39:36,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 17:39:36,023 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-10-15 17:39:36,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:36,061 INFO L225 Difference]: With dead ends: 8204 [2022-10-15 17:39:36,061 INFO L226 Difference]: Without dead ends: 8204 [2022-10-15 17:39:36,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2022-10-15 17:39:36,062 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1222 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:36,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 1126 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:39:36,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8204 states. [2022-10-15 17:39:36,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8204 to 2148. [2022-10-15 17:39:36,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2148 states, 2147 states have (on average 1.4606427573358174) internal successors, (3136), 2147 states have internal predecessors, (3136), 0 states have call successors, (0), 0 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 17:39:36,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 3136 transitions. [2022-10-15 17:39:36,145 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 3136 transitions. Word has length 71 [2022-10-15 17:39:36,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:36,146 INFO L495 AbstractCegarLoop]: Abstraction has 2148 states and 3136 transitions. [2022-10-15 17:39:36,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 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 17:39:36,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 3136 transitions. [2022-10-15 17:39:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 17:39:36,147 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:36,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:36,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:39:36,148 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:36,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:36,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1237414452, now seen corresponding path program 1 times [2022-10-15 17:39:36,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:36,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497035913] [2022-10-15 17:39:36,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:36,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:38,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:38,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:38,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497035913] [2022-10-15 17:39:38,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497035913] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:38,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:38,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-10-15 17:39:38,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143407713] [2022-10-15 17:39:38,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:38,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-15 17:39:38,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:38,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-15 17:39:38,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2022-10-15 17:39:38,046 INFO L87 Difference]: Start difference. First operand 2148 states and 3136 transitions. Second operand has 24 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 0 states have call successors, (0), 0 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 17:39:42,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:42,524 INFO L93 Difference]: Finished difference Result 9721 states and 14298 transitions. [2022-10-15 17:39:42,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-15 17:39:42,524 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-10-15 17:39:42,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:42,542 INFO L225 Difference]: With dead ends: 9721 [2022-10-15 17:39:42,542 INFO L226 Difference]: Without dead ends: 9721 [2022-10-15 17:39:42,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=399, Invalid=2151, Unknown=0, NotChecked=0, Total=2550 [2022-10-15 17:39:42,544 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 1203 mSDsluCounter, 3426 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:42,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 3648 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-15 17:39:42,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9721 states. [2022-10-15 17:39:42,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9721 to 2163. [2022-10-15 17:39:42,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2163 states, 2162 states have (on average 1.4583718778908419) internal successors, (3153), 2162 states have internal predecessors, (3153), 0 states have call successors, (0), 0 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 17:39:42,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2163 states to 2163 states and 3153 transitions. [2022-10-15 17:39:42,646 INFO L78 Accepts]: Start accepts. Automaton has 2163 states and 3153 transitions. Word has length 71 [2022-10-15 17:39:42,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:42,647 INFO L495 AbstractCegarLoop]: Abstraction has 2163 states and 3153 transitions. [2022-10-15 17:39:42,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.9583333333333335) internal successors, (71), 24 states have internal predecessors, (71), 0 states have call successors, (0), 0 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 17:39:42,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2163 states and 3153 transitions. [2022-10-15 17:39:42,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 17:39:42,648 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:42,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:42,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:39:42,649 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:42,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:42,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1749525204, now seen corresponding path program 1 times [2022-10-15 17:39:42,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:42,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911407258] [2022-10-15 17:39:42,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:42,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:44,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:44,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:44,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911407258] [2022-10-15 17:39:44,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911407258] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:44,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:44,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-10-15 17:39:44,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509890039] [2022-10-15 17:39:44,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:44,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-15 17:39:44,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:44,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-15 17:39:44,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2022-10-15 17:39:44,007 INFO L87 Difference]: Start difference. First operand 2163 states and 3153 transitions. Second operand has 26 states, 26 states have (on average 2.730769230769231) internal successors, (71), 26 states have internal predecessors, (71), 0 states have call successors, (0), 0 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 17:39:47,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:47,684 INFO L93 Difference]: Finished difference Result 5324 states and 7810 transitions. [2022-10-15 17:39:47,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-15 17:39:47,684 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.730769230769231) internal successors, (71), 26 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-10-15 17:39:47,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:47,696 INFO L225 Difference]: With dead ends: 5324 [2022-10-15 17:39:47,697 INFO L226 Difference]: Without dead ends: 5324 [2022-10-15 17:39:47,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=415, Invalid=2447, Unknown=0, NotChecked=0, Total=2862 [2022-10-15 17:39:47,703 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 667 mSDsluCounter, 3039 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 2282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:47,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 3223 Invalid, 2282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-10-15 17:39:47,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5324 states. [2022-10-15 17:39:47,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5324 to 2163. [2022-10-15 17:39:47,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2163 states, 2162 states have (on average 1.4574468085106382) internal successors, (3151), 2162 states have internal predecessors, (3151), 0 states have call successors, (0), 0 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 17:39:47,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2163 states to 2163 states and 3151 transitions. [2022-10-15 17:39:47,775 INFO L78 Accepts]: Start accepts. Automaton has 2163 states and 3151 transitions. Word has length 71 [2022-10-15 17:39:47,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:47,776 INFO L495 AbstractCegarLoop]: Abstraction has 2163 states and 3151 transitions. [2022-10-15 17:39:47,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.730769230769231) internal successors, (71), 26 states have internal predecessors, (71), 0 states have call successors, (0), 0 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 17:39:47,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2163 states and 3151 transitions. [2022-10-15 17:39:47,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 17:39:47,777 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:47,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:47,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:39:47,778 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:47,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:47,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1430628756, now seen corresponding path program 1 times [2022-10-15 17:39:47,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:47,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585838759] [2022-10-15 17:39:47,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:47,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:48,455 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 17:39:48,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:48,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585838759] [2022-10-15 17:39:48,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585838759] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:48,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:48,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-10-15 17:39:48,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060703120] [2022-10-15 17:39:48,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:48,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 17:39:48,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:48,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 17:39:48,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:39:48,458 INFO L87 Difference]: Start difference. First operand 2163 states and 3151 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 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 17:39:49,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:49,822 INFO L93 Difference]: Finished difference Result 8236 states and 12103 transitions. [2022-10-15 17:39:49,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 17:39:49,823 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 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 72 [2022-10-15 17:39:49,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:49,838 INFO L225 Difference]: With dead ends: 8236 [2022-10-15 17:39:49,838 INFO L226 Difference]: Without dead ends: 8236 [2022-10-15 17:39:49,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2022-10-15 17:39:49,840 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1212 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:49,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 1336 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:39:49,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8236 states. [2022-10-15 17:39:49,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8236 to 2135. [2022-10-15 17:39:49,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2135 states, 2134 states have (on average 1.458294283036551) internal successors, (3112), 2134 states have internal predecessors, (3112), 0 states have call successors, (0), 0 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 17:39:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3112 transitions. [2022-10-15 17:39:49,934 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3112 transitions. Word has length 72 [2022-10-15 17:39:49,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:49,934 INFO L495 AbstractCegarLoop]: Abstraction has 2135 states and 3112 transitions. [2022-10-15 17:39:49,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 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 17:39:49,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3112 transitions. [2022-10-15 17:39:49,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 17:39:49,936 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:49,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:49,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 17:39:49,937 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:49,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:49,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1438947915, now seen corresponding path program 1 times [2022-10-15 17:39:49,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:49,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183024592] [2022-10-15 17:39:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:49,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:51,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:51,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183024592] [2022-10-15 17:39:51,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183024592] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:51,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:51,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-10-15 17:39:51,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388199243] [2022-10-15 17:39:51,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:51,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-15 17:39:51,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:51,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-15 17:39:51,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:39:51,053 INFO L87 Difference]: Start difference. First operand 2135 states and 3112 transitions. Second operand has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 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 17:39:53,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:53,109 INFO L93 Difference]: Finished difference Result 9655 states and 14210 transitions. [2022-10-15 17:39:53,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-15 17:39:53,121 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 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 72 [2022-10-15 17:39:53,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:53,139 INFO L225 Difference]: With dead ends: 9655 [2022-10-15 17:39:53,140 INFO L226 Difference]: Without dead ends: 9655 [2022-10-15 17:39:53,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=187, Invalid=743, Unknown=0, NotChecked=0, Total=930 [2022-10-15 17:39:53,142 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 566 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 3361 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:53,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 3361 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 17:39:53,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9655 states. [2022-10-15 17:39:53,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9655 to 2123. [2022-10-15 17:39:53,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2123 states, 2122 states have (on average 1.459000942507069) internal successors, (3096), 2122 states have internal predecessors, (3096), 0 states have call successors, (0), 0 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 17:39:53,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 3096 transitions. [2022-10-15 17:39:53,258 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 3096 transitions. Word has length 72 [2022-10-15 17:39:53,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:53,258 INFO L495 AbstractCegarLoop]: Abstraction has 2123 states and 3096 transitions. [2022-10-15 17:39:53,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 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 17:39:53,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 3096 transitions. [2022-10-15 17:39:53,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 17:39:53,260 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:53,260 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:53,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-15 17:39:53,260 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:53,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:53,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1545437633, now seen corresponding path program 1 times [2022-10-15 17:39:53,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:53,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144811088] [2022-10-15 17:39:53,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:53,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:53,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:39:53,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:53,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144811088] [2022-10-15 17:39:53,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144811088] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:53,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:53,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:39:53,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174483004] [2022-10-15 17:39:53,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:53,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:39:53,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:53,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:39:53,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:39:53,449 INFO L87 Difference]: Start difference. First operand 2123 states and 3096 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 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 17:39:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:53,486 INFO L93 Difference]: Finished difference Result 2927 states and 4242 transitions. [2022-10-15 17:39:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:39:53,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 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 72 [2022-10-15 17:39:53,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:53,494 INFO L225 Difference]: With dead ends: 2927 [2022-10-15 17:39:53,494 INFO L226 Difference]: Without dead ends: 2927 [2022-10-15 17:39:53,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:39:53,495 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 74 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:53,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 358 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:39:53,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2022-10-15 17:39:53,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2907. [2022-10-15 17:39:53,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2907 states, 2906 states have (on average 1.4532002752924982) internal successors, (4223), 2906 states have internal predecessors, (4223), 0 states have call successors, (0), 0 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 17:39:53,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 4223 transitions. [2022-10-15 17:39:53,542 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 4223 transitions. Word has length 72 [2022-10-15 17:39:53,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:53,542 INFO L495 AbstractCegarLoop]: Abstraction has 2907 states and 4223 transitions. [2022-10-15 17:39:53,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 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 17:39:53,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 4223 transitions. [2022-10-15 17:39:53,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 17:39:53,543 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:53,543 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:53,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-15 17:39:53,544 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:53,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:53,544 INFO L85 PathProgramCache]: Analyzing trace with hash -654506813, now seen corresponding path program 1 times [2022-10-15 17:39:53,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:53,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420798097] [2022-10-15 17:39:53,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:53,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:53,790 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 17:39:53,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:53,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420798097] [2022-10-15 17:39:53,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420798097] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:53,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:53,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:39:53,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921445415] [2022-10-15 17:39:53,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:53,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:39:53,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:53,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:39:53,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:39:53,793 INFO L87 Difference]: Start difference. First operand 2907 states and 4223 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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 17:39:53,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:53,836 INFO L93 Difference]: Finished difference Result 4513 states and 6518 transitions. [2022-10-15 17:39:53,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:39:53,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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 72 [2022-10-15 17:39:53,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:53,846 INFO L225 Difference]: With dead ends: 4513 [2022-10-15 17:39:53,846 INFO L226 Difference]: Without dead ends: 4513 [2022-10-15 17:39:53,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 17:39:53,848 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 142 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:53,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 611 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:39:53,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4513 states. [2022-10-15 17:39:53,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4513 to 2927. [2022-10-15 17:39:53,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 2926 states have (on average 1.4425837320574162) internal successors, (4221), 2926 states have internal predecessors, (4221), 0 states have call successors, (0), 0 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 17:39:53,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 4221 transitions. [2022-10-15 17:39:53,915 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 4221 transitions. Word has length 72 [2022-10-15 17:39:53,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:53,915 INFO L495 AbstractCegarLoop]: Abstraction has 2927 states and 4221 transitions. [2022-10-15 17:39:53,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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 17:39:53,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 4221 transitions. [2022-10-15 17:39:53,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 17:39:53,916 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:53,916 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:53,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-15 17:39:53,917 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:53,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:53,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1371390844, now seen corresponding path program 1 times [2022-10-15 17:39:53,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:53,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518883618] [2022-10-15 17:39:53,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:53,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:55,192 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 17:39:55,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:55,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518883618] [2022-10-15 17:39:55,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518883618] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:55,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:55,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-10-15 17:39:55,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316528531] [2022-10-15 17:39:55,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:55,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-15 17:39:55,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:55,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-15 17:39:55,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-10-15 17:39:55,195 INFO L87 Difference]: Start difference. First operand 2927 states and 4221 transitions. Second operand has 25 states, 25 states have (on average 2.88) internal successors, (72), 25 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 17:39:58,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:58,554 INFO L93 Difference]: Finished difference Result 8207 states and 11895 transitions. [2022-10-15 17:39:58,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-15 17:39:58,558 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.88) internal successors, (72), 25 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 72 [2022-10-15 17:39:58,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:58,571 INFO L225 Difference]: With dead ends: 8207 [2022-10-15 17:39:58,571 INFO L226 Difference]: Without dead ends: 8207 [2022-10-15 17:39:58,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=384, Invalid=1968, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 17:39:58,574 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 520 mSDsluCounter, 3691 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 3931 SdHoareTripleChecker+Invalid, 2458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:58,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 3931 Invalid, 2458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2417 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 17:39:58,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8207 states. [2022-10-15 17:39:58,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8207 to 2935. [2022-10-15 17:39:58,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2935 states, 2934 states have (on average 1.4413769597818678) internal successors, (4229), 2934 states have internal predecessors, (4229), 0 states have call successors, (0), 0 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 17:39:58,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 4229 transitions. [2022-10-15 17:39:58,654 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 4229 transitions. Word has length 72 [2022-10-15 17:39:58,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:58,654 INFO L495 AbstractCegarLoop]: Abstraction has 2935 states and 4229 transitions. [2022-10-15 17:39:58,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.88) internal successors, (72), 25 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 17:39:58,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 4229 transitions. [2022-10-15 17:39:58,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 17:39:58,655 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:58,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:58,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-15 17:39:58,656 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:58,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:58,656 INFO L85 PathProgramCache]: Analyzing trace with hash 838067914, now seen corresponding path program 1 times [2022-10-15 17:39:58,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:58,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996389006] [2022-10-15 17:39:58,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:58,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:59,828 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 17:39:59,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:59,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996389006] [2022-10-15 17:39:59,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996389006] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:59,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:59,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-10-15 17:39:59,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132808297] [2022-10-15 17:39:59,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:59,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 17:39:59,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:59,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 17:39:59,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-10-15 17:39:59,831 INFO L87 Difference]: Start difference. First operand 2935 states and 4229 transitions. Second operand has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 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 17:40:04,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:40:04,159 INFO L93 Difference]: Finished difference Result 17841 states and 25969 transitions. [2022-10-15 17:40:04,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-15 17:40:04,159 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 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 73 [2022-10-15 17:40:04,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:40:04,182 INFO L225 Difference]: With dead ends: 17841 [2022-10-15 17:40:04,183 INFO L226 Difference]: Without dead ends: 17841 [2022-10-15 17:40:04,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=326, Invalid=1234, Unknown=0, NotChecked=0, Total=1560 [2022-10-15 17:40:04,184 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 1547 mSDsluCounter, 4069 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4454 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:40:04,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 4454 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-15 17:40:04,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17841 states. [2022-10-15 17:40:04,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17841 to 2934. [2022-10-15 17:40:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2934 states, 2933 states have (on average 1.4411864984657348) internal successors, (4227), 2933 states have internal predecessors, (4227), 0 states have call successors, (0), 0 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 17:40:04,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2934 states to 2934 states and 4227 transitions. [2022-10-15 17:40:04,344 INFO L78 Accepts]: Start accepts. Automaton has 2934 states and 4227 transitions. Word has length 73 [2022-10-15 17:40:04,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:40:04,345 INFO L495 AbstractCegarLoop]: Abstraction has 2934 states and 4227 transitions. [2022-10-15 17:40:04,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 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 17:40:04,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2934 states and 4227 transitions. [2022-10-15 17:40:04,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 17:40:04,346 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:40:04,346 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:40:04,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-15 17:40:04,346 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:40:04,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:40:04,347 INFO L85 PathProgramCache]: Analyzing trace with hash 368393840, now seen corresponding path program 1 times [2022-10-15 17:40:04,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:40:04,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488220015] [2022-10-15 17:40:04,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:04,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:40:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:04,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:04,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:40:04,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488220015] [2022-10-15 17:40:04,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488220015] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:40:04,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:40:04,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-10-15 17:40:04,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958007277] [2022-10-15 17:40:04,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:40:04,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 17:40:04,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:40:04,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 17:40:04,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:40:04,978 INFO L87 Difference]: Start difference. First operand 2934 states and 4227 transitions. Second operand has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 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 17:40:05,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:40:05,955 INFO L93 Difference]: Finished difference Result 5751 states and 8323 transitions. [2022-10-15 17:40:05,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 17:40:05,955 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 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 73 [2022-10-15 17:40:05,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:40:05,959 INFO L225 Difference]: With dead ends: 5751 [2022-10-15 17:40:05,959 INFO L226 Difference]: Without dead ends: 5751 [2022-10-15 17:40:05,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-10-15 17:40:05,960 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 728 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:40:05,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1025 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:40:05,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5751 states. [2022-10-15 17:40:06,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5751 to 2919. [2022-10-15 17:40:06,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2919 states, 2918 states have (on average 1.4424263193968472) internal successors, (4209), 2918 states have internal predecessors, (4209), 0 states have call successors, (0), 0 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 17:40:06,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2919 states to 2919 states and 4209 transitions. [2022-10-15 17:40:06,030 INFO L78 Accepts]: Start accepts. Automaton has 2919 states and 4209 transitions. Word has length 73 [2022-10-15 17:40:06,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:40:06,030 INFO L495 AbstractCegarLoop]: Abstraction has 2919 states and 4209 transitions. [2022-10-15 17:40:06,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 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 17:40:06,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2919 states and 4209 transitions. [2022-10-15 17:40:06,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 17:40:06,031 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:40:06,031 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:40:06,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-15 17:40:06,032 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:40:06,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:40:06,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1038038315, now seen corresponding path program 1 times [2022-10-15 17:40:06,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:40:06,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885585322] [2022-10-15 17:40:06,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:06,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:40:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:06,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:06,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:40:06,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885585322] [2022-10-15 17:40:06,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885585322] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:40:06,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:40:06,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-10-15 17:40:06,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187465044] [2022-10-15 17:40:06,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:40:06,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 17:40:06,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:40:06,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 17:40:06,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-10-15 17:40:06,813 INFO L87 Difference]: Start difference. First operand 2919 states and 4209 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 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 17:40:08,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:40:08,965 INFO L93 Difference]: Finished difference Result 17035 states and 24726 transitions. [2022-10-15 17:40:08,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-15 17:40:08,966 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 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 73 [2022-10-15 17:40:08,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:40:08,986 INFO L225 Difference]: With dead ends: 17035 [2022-10-15 17:40:08,986 INFO L226 Difference]: Without dead ends: 17035 [2022-10-15 17:40:08,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=214, Invalid=716, Unknown=0, NotChecked=0, Total=930 [2022-10-15 17:40:08,988 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1026 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:40:08,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 2323 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:40:08,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17035 states. [2022-10-15 17:40:09,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17035 to 2912. [2022-10-15 17:40:09,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2912 states, 2911 states have (on average 1.4428031604259706) internal successors, (4200), 2911 states have internal predecessors, (4200), 0 states have call successors, (0), 0 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 17:40:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2912 states to 2912 states and 4200 transitions. [2022-10-15 17:40:09,128 INFO L78 Accepts]: Start accepts. Automaton has 2912 states and 4200 transitions. Word has length 73 [2022-10-15 17:40:09,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:40:09,128 INFO L495 AbstractCegarLoop]: Abstraction has 2912 states and 4200 transitions. [2022-10-15 17:40:09,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 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 17:40:09,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2912 states and 4200 transitions. [2022-10-15 17:40:09,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-15 17:40:09,131 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:40:09,132 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 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 17:40:09,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-10-15 17:40:09,132 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:40:09,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:40:09,133 INFO L85 PathProgramCache]: Analyzing trace with hash 272069267, now seen corresponding path program 1 times [2022-10-15 17:40:09,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:40:09,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646995348] [2022-10-15 17:40:09,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:09,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:40:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:09,234 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:09,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:40:09,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646995348] [2022-10-15 17:40:09,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646995348] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:40:09,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:40:09,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:40:09,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766186627] [2022-10-15 17:40:09,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:40:09,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:40:09,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:40:09,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:40:09,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:40:09,236 INFO L87 Difference]: Start difference. First operand 2912 states and 4200 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 17:40:09,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:40:09,334 INFO L93 Difference]: Finished difference Result 4486 states and 6480 transitions. [2022-10-15 17:40:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:40:09,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-10-15 17:40:09,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:40:09,339 INFO L225 Difference]: With dead ends: 4486 [2022-10-15 17:40:09,339 INFO L226 Difference]: Without dead ends: 4486 [2022-10-15 17:40:09,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:40:09,340 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 271 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:40:09,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 196 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:40:09,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4486 states. [2022-10-15 17:40:09,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4486 to 2486. [2022-10-15 17:40:09,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2485 states have (on average 1.4402414486921529) internal successors, (3579), 2485 states have internal predecessors, (3579), 0 states have call successors, (0), 0 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 17:40:09,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3579 transitions. [2022-10-15 17:40:09,413 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3579 transitions. Word has length 98 [2022-10-15 17:40:09,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:40:09,414 INFO L495 AbstractCegarLoop]: Abstraction has 2486 states and 3579 transitions. [2022-10-15 17:40:09,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 17:40:09,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3579 transitions. [2022-10-15 17:40:09,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-15 17:40:09,416 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:40:09,416 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 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 17:40:09,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-10-15 17:40:09,417 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:40:09,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:40:09,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2048576078, now seen corresponding path program 1 times [2022-10-15 17:40:09,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:40:09,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002656516] [2022-10-15 17:40:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:09,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:40:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:09,565 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:09,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:40:09,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002656516] [2022-10-15 17:40:09,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002656516] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:40:09,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:40:09,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:40:09,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708933681] [2022-10-15 17:40:09,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:40:09,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:40:09,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:40:09,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:40:09,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:40:09,569 INFO L87 Difference]: Start difference. First operand 2486 states and 3579 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 17:40:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:40:09,868 INFO L93 Difference]: Finished difference Result 10022 states and 14164 transitions. [2022-10-15 17:40:09,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 17:40:09,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-10-15 17:40:09,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:40:09,882 INFO L225 Difference]: With dead ends: 10022 [2022-10-15 17:40:09,882 INFO L226 Difference]: Without dead ends: 10022 [2022-10-15 17:40:09,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-15 17:40:09,883 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 1092 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:40:09,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 302 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:40:09,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10022 states. [2022-10-15 17:40:09,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10022 to 5420. [2022-10-15 17:40:09,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 5419 states have (on average 1.4417789260011071) internal successors, (7813), 5419 states have internal predecessors, (7813), 0 states have call successors, (0), 0 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 17:40:09,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 7813 transitions. [2022-10-15 17:40:09,991 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 7813 transitions. Word has length 98 [2022-10-15 17:40:09,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:40:09,992 INFO L495 AbstractCegarLoop]: Abstraction has 5420 states and 7813 transitions. [2022-10-15 17:40:09,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 17:40:09,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 7813 transitions. [2022-10-15 17:40:09,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-15 17:40:09,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:40:09,994 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 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 17:40:09,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-10-15 17:40:09,995 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:40:09,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:40:09,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1823822764, now seen corresponding path program 1 times [2022-10-15 17:40:09,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:40:09,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469559197] [2022-10-15 17:40:09,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:09,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:40:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:10,138 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:10,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:40:10,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469559197] [2022-10-15 17:40:10,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469559197] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:40:10,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:40:10,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:40:10,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040379242] [2022-10-15 17:40:10,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:40:10,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:40:10,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:40:10,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:40:10,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:40:10,141 INFO L87 Difference]: Start difference. First operand 5420 states and 7813 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 17:40:10,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:40:10,492 INFO L93 Difference]: Finished difference Result 19070 states and 27084 transitions. [2022-10-15 17:40:10,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 17:40:10,493 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-10-15 17:40:10,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:40:10,512 INFO L225 Difference]: With dead ends: 19070 [2022-10-15 17:40:10,512 INFO L226 Difference]: Without dead ends: 19070 [2022-10-15 17:40:10,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-15 17:40:10,513 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 1267 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:40:10,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 296 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:40:10,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19070 states. [2022-10-15 17:40:10,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19070 to 11818. [2022-10-15 17:40:10,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11818 states, 11817 states have (on average 1.4405517474824405) internal successors, (17023), 11817 states have internal predecessors, (17023), 0 states have call successors, (0), 0 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 17:40:10,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11818 states to 11818 states and 17023 transitions. [2022-10-15 17:40:10,733 INFO L78 Accepts]: Start accepts. Automaton has 11818 states and 17023 transitions. Word has length 98 [2022-10-15 17:40:10,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:40:10,733 INFO L495 AbstractCegarLoop]: Abstraction has 11818 states and 17023 transitions. [2022-10-15 17:40:10,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 17:40:10,734 INFO L276 IsEmpty]: Start isEmpty. Operand 11818 states and 17023 transitions. [2022-10-15 17:40:10,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-15 17:40:10,736 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:40:10,736 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 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 17:40:10,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-10-15 17:40:10,736 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:40:10,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:40:10,737 INFO L85 PathProgramCache]: Analyzing trace with hash -362244390, now seen corresponding path program 1 times [2022-10-15 17:40:10,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:40:10,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874577898] [2022-10-15 17:40:10,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:10,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:40:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:10,904 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:10,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:40:10,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874577898] [2022-10-15 17:40:10,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874577898] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:40:10,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:40:10,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:40:10,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976723110] [2022-10-15 17:40:10,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:40:10,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:40:10,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:40:10,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:40:10,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:40:10,907 INFO L87 Difference]: Start difference. First operand 11818 states and 17023 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 17:40:11,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:40:11,295 INFO L93 Difference]: Finished difference Result 32200 states and 45998 transitions. [2022-10-15 17:40:11,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 17:40:11,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-10-15 17:40:11,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:40:11,326 INFO L225 Difference]: With dead ends: 32200 [2022-10-15 17:40:11,326 INFO L226 Difference]: Without dead ends: 32200 [2022-10-15 17:40:11,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-15 17:40:11,327 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 1005 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:40:11,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 372 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:40:11,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32200 states. [2022-10-15 17:40:11,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32200 to 19092. [2022-10-15 17:40:11,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19092 states, 19091 states have (on average 1.4434550311665182) internal successors, (27557), 19091 states have internal predecessors, (27557), 0 states have call successors, (0), 0 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 17:40:11,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19092 states to 19092 states and 27557 transitions. [2022-10-15 17:40:11,825 INFO L78 Accepts]: Start accepts. Automaton has 19092 states and 27557 transitions. Word has length 98 [2022-10-15 17:40:11,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:40:11,826 INFO L495 AbstractCegarLoop]: Abstraction has 19092 states and 27557 transitions. [2022-10-15 17:40:11,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 17:40:11,826 INFO L276 IsEmpty]: Start isEmpty. Operand 19092 states and 27557 transitions. [2022-10-15 17:40:11,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-15 17:40:11,828 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:40:11,828 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 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 17:40:11,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-10-15 17:40:11,829 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:40:11,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:40:11,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1915666314, now seen corresponding path program 1 times [2022-10-15 17:40:11,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:40:11,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249341603] [2022-10-15 17:40:11,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:11,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:40:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:11,949 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:11,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:40:11,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249341603] [2022-10-15 17:40:11,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249341603] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:40:11,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:40:11,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:40:11,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20564677] [2022-10-15 17:40:11,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:40:11,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:40:11,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:40:11,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:40:11,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:40:11,951 INFO L87 Difference]: Start difference. First operand 19092 states and 27557 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 17:40:12,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:40:12,084 INFO L93 Difference]: Finished difference Result 18125 states and 25884 transitions. [2022-10-15 17:40:12,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:40:12,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-10-15 17:40:12,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:40:12,115 INFO L225 Difference]: With dead ends: 18125 [2022-10-15 17:40:12,115 INFO L226 Difference]: Without dead ends: 18125 [2022-10-15 17:40:12,117 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 17:40:12,118 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 66 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 322 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 17:40:12,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 322 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:40:12,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18125 states. [2022-10-15 17:40:12,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18125 to 18123. [2022-10-15 17:40:12,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18123 states, 18122 states have (on average 1.4282639885222381) internal successors, (25883), 18122 states have internal predecessors, (25883), 0 states have call successors, (0), 0 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 17:40:12,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18123 states to 18123 states and 25883 transitions. [2022-10-15 17:40:12,380 INFO L78 Accepts]: Start accepts. Automaton has 18123 states and 25883 transitions. Word has length 98 [2022-10-15 17:40:12,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:40:12,381 INFO L495 AbstractCegarLoop]: Abstraction has 18123 states and 25883 transitions. [2022-10-15 17:40:12,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 17:40:12,381 INFO L276 IsEmpty]: Start isEmpty. Operand 18123 states and 25883 transitions. [2022-10-15 17:40:12,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-15 17:40:12,389 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:40:12,389 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:40:12,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-10-15 17:40:12,389 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:40:12,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:40:12,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2121849076, now seen corresponding path program 1 times [2022-10-15 17:40:12,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:40:12,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961149567] [2022-10-15 17:40:12,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:12,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:40:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:12,572 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-15 17:40:12,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:40:12,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961149567] [2022-10-15 17:40:12,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961149567] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:40:12,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:40:12,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:40:12,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682186436] [2022-10-15 17:40:12,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:40:12,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:40:12,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:40:12,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:40:12,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:40:12,575 INFO L87 Difference]: Start difference. First operand 18123 states and 25883 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 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 17:40:12,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:40:12,632 INFO L93 Difference]: Finished difference Result 16508 states and 23189 transitions. [2022-10-15 17:40:12,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:40:12,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2022-10-15 17:40:12,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:40:12,655 INFO L225 Difference]: With dead ends: 16508 [2022-10-15 17:40:12,655 INFO L226 Difference]: Without dead ends: 16508 [2022-10-15 17:40:12,656 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 17:40:12,660 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 62 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 316 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 17:40:12,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 316 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:40:12,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16508 states. [2022-10-15 17:40:13,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16508 to 16016. [2022-10-15 17:40:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16016 states, 16015 states have (on average 1.4117389946924759) internal successors, (22609), 16015 states have internal predecessors, (22609), 0 states have call successors, (0), 0 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 17:40:13,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16016 states to 16016 states and 22609 transitions. [2022-10-15 17:40:13,045 INFO L78 Accepts]: Start accepts. Automaton has 16016 states and 22609 transitions. Word has length 122 [2022-10-15 17:40:13,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:40:13,046 INFO L495 AbstractCegarLoop]: Abstraction has 16016 states and 22609 transitions. [2022-10-15 17:40:13,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 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 17:40:13,046 INFO L276 IsEmpty]: Start isEmpty. Operand 16016 states and 22609 transitions. [2022-10-15 17:40:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-10-15 17:40:13,049 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:40:13,049 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:40:13,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-10-15 17:40:13,050 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:40:13,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:40:13,051 INFO L85 PathProgramCache]: Analyzing trace with hash 748990348, now seen corresponding path program 1 times [2022-10-15 17:40:13,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:40:13,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221829189] [2022-10-15 17:40:13,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:13,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:40:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat