/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_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 03:13:29,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 03:13:29,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 03:13:29,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 03:13:29,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 03:13:29,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 03:13:29,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 03:13:29,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 03:13:29,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 03:13:29,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 03:13:29,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 03:13:29,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 03:13:29,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 03:13:29,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 03:13:29,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 03:13:29,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 03:13:29,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 03:13:29,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 03:13:29,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 03:13:29,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 03:13:29,367 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 [2022-10-16 03:13:29,435 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 03:13:29,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 03:13:29,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 03:13:29,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 03:13:29,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 03:13:29,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 03:13:29,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 03:13:29,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 03:13:29,442 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 03:13:29,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 03:13:29,442 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 03:13:29,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 03:13:29,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 03:13:29,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 03:13:29,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 03:13:29,445 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 03:13:29,446 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 03:13:29,446 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 03:13:29,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 03:13:29,447 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 03:13:29,447 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 03:13:29,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 03:13:29,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 03:13:29,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 03:13:29,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 03:13:29,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:13:29,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 03:13:29,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 03:13:29,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 03:13:29,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 03:13:29,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 03:13:29,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 03:13:29,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 03:13:29,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 03:13:29,911 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 03:13:29,915 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 03:13:29,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-16 03:13:30,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a40d2a2a/2f7ab8f6f97a469cb57099e8578e1820/FLAG0bb79e467 [2022-10-16 03:13:30,686 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 03:13:30,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-16 03:13:30,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a40d2a2a/2f7ab8f6f97a469cb57099e8578e1820/FLAG0bb79e467 [2022-10-16 03:13:30,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a40d2a2a/2f7ab8f6f97a469cb57099e8578e1820 [2022-10-16 03:13:30,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 03:13:30,993 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 03:13:30,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 03:13:30,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 03:13:31,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 03:13:31,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:13:30" (1/1) ... [2022-10-16 03:13:31,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fe4a502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31, skipping insertion in model container [2022-10-16 03:13:31,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:13:30" (1/1) ... [2022-10-16 03:13:31,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 03:13:31,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 03:13:31,384 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_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7349,7362] [2022-10-16 03:13:31,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:13:31,452 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 03:13:31,503 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_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7349,7362] [2022-10-16 03:13:31,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:13:31,591 INFO L208 MainTranslator]: Completed translation [2022-10-16 03:13:31,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31 WrapperNode [2022-10-16 03:13:31,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 03:13:31,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 03:13:31,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 03:13:31,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 03:13:31,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31" (1/1) ... [2022-10-16 03:13:31,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31" (1/1) ... [2022-10-16 03:13:31,708 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 590 [2022-10-16 03:13:31,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 03:13:31,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 03:13:31,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 03:13:31,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 03:13:31,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31" (1/1) ... [2022-10-16 03:13:31,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31" (1/1) ... [2022-10-16 03:13:31,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31" (1/1) ... [2022-10-16 03:13:31,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31" (1/1) ... [2022-10-16 03:13:31,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31" (1/1) ... [2022-10-16 03:13:31,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31" (1/1) ... [2022-10-16 03:13:31,804 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31" (1/1) ... [2022-10-16 03:13:31,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31" (1/1) ... [2022-10-16 03:13:31,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 03:13:31,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 03:13:31,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 03:13:31,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 03:13:31,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31" (1/1) ... [2022-10-16 03:13:31,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:13:31,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:13:31,882 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) [2022-10-16 03:13:31,891 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 [2022-10-16 03:13:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 03:13:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 03:13:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 03:13:31,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 03:13:32,202 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 03:13:32,205 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 03:13:32,817 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 03:13:32,826 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 03:13:32,826 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 03:13:32,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:13:32 BoogieIcfgContainer [2022-10-16 03:13:32,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 03:13:32,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 03:13:32,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 03:13:32,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 03:13:32,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:13:30" (1/3) ... [2022-10-16 03:13:32,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b659df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:13:32, skipping insertion in model container [2022-10-16 03:13:32,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:13:31" (2/3) ... [2022-10-16 03:13:32,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b659df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:13:32, skipping insertion in model container [2022-10-16 03:13:32,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:13:32" (3/3) ... [2022-10-16 03:13:32,840 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-16 03:13:32,861 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 03:13:32,862 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 03:13:32,920 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 03:13:32,929 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;@ebf93a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 03:13:32,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 03:13:32,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 138 states have (on average 1.7681159420289856) internal successors, (244), 140 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:32,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 03:13:32,945 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:32,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:13:32,946 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:32,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:32,953 INFO L85 PathProgramCache]: Analyzing trace with hash 962674463, now seen corresponding path program 1 times [2022-10-16 03:13:32,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:32,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945964635] [2022-10-16 03:13:32,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:32,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:33,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:33,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945964635] [2022-10-16 03:13:33,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945964635] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:33,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:33,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 03:13:33,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813856134] [2022-10-16 03:13:33,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:33,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:13:33,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:33,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:13:33,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:13:33,436 INFO L87 Difference]: Start difference. First operand has 141 states, 138 states have (on average 1.7681159420289856) internal successors, (244), 140 states have internal predecessors, (244), 0 states have call successors, (0), 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 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:33,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:33,494 INFO L93 Difference]: Finished difference Result 140 states and 242 transitions. [2022-10-16 03:13:33,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:13:33,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 03:13:33,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:33,510 INFO L225 Difference]: With dead ends: 140 [2022-10-16 03:13:33,511 INFO L226 Difference]: Without dead ends: 137 [2022-10-16 03:13:33,513 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 [2022-10-16 03:13:33,518 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 227 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 241 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 [2022-10-16 03:13:33,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 241 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:13:33,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-10-16 03:13:33,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-10-16 03:13:33,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 1.5588235294117647) internal successors, (212), 136 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) [2022-10-16 03:13:33,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 212 transitions. [2022-10-16 03:13:33,571 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 212 transitions. Word has length 16 [2022-10-16 03:13:33,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:33,572 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 212 transitions. [2022-10-16 03:13:33,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:33,573 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 212 transitions. [2022-10-16 03:13:33,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 03:13:33,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:33,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:13:33,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 03:13:33,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:33,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:33,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1890044597, now seen corresponding path program 1 times [2022-10-16 03:13:33,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:33,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36365692] [2022-10-16 03:13:33,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:33,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:33,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:33,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:33,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36365692] [2022-10-16 03:13:33,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36365692] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:33,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:33,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:13:33,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425412178] [2022-10-16 03:13:33,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:33,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:13:33,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:33,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:13:33,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:13:33,865 INFO L87 Difference]: Start difference. First operand 137 states and 212 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:33,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:33,956 INFO L93 Difference]: Finished difference Result 201 states and 313 transitions. [2022-10-16 03:13:33,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:13:33,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-16 03:13:33,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:33,990 INFO L225 Difference]: With dead ends: 201 [2022-10-16 03:13:33,990 INFO L226 Difference]: Without dead ends: 201 [2022-10-16 03:13:33,991 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 [2022-10-16 03:13:33,993 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 115 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:33,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 362 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:13:33,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-10-16 03:13:34,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2022-10-16 03:13:34,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 1.5786802030456852) internal successors, (311), 197 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:34,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 311 transitions. [2022-10-16 03:13:34,016 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 311 transitions. Word has length 56 [2022-10-16 03:13:34,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:34,017 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 311 transitions. [2022-10-16 03:13:34,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:34,017 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 311 transitions. [2022-10-16 03:13:34,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 03:13:34,020 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:34,020 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] [2022-10-16 03:13:34,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 03:13:34,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:34,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:34,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1610685192, now seen corresponding path program 1 times [2022-10-16 03:13:34,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:34,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848245056] [2022-10-16 03:13:34,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:34,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:34,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:34,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:34,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848245056] [2022-10-16 03:13:34,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848245056] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:34,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:34,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:13:34,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327768277] [2022-10-16 03:13:34,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:34,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:13:34,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:34,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:13:34,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:13:34,250 INFO L87 Difference]: Start difference. First operand 198 states and 311 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:34,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:34,318 INFO L93 Difference]: Finished difference Result 328 states and 520 transitions. [2022-10-16 03:13:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:13:34,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-10-16 03:13:34,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:34,323 INFO L225 Difference]: With dead ends: 328 [2022-10-16 03:13:34,323 INFO L226 Difference]: Without dead ends: 328 [2022-10-16 03:13:34,323 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 [2022-10-16 03:13:34,325 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 118 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:34,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 391 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:13:34,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-10-16 03:13:34,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 324. [2022-10-16 03:13:34,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 323 states have (on average 1.6006191950464397) internal successors, (517), 323 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:34,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 517 transitions. [2022-10-16 03:13:34,355 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 517 transitions. Word has length 58 [2022-10-16 03:13:34,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:34,356 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 517 transitions. [2022-10-16 03:13:34,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:34,356 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 517 transitions. [2022-10-16 03:13:34,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 03:13:34,360 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:34,360 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] [2022-10-16 03:13:34,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 03:13:34,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:34,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:34,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1017067947, now seen corresponding path program 1 times [2022-10-16 03:13:34,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:34,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887892173] [2022-10-16 03:13:34,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:34,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:34,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:34,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887892173] [2022-10-16 03:13:34,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887892173] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:34,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:34,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:13:34,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162867054] [2022-10-16 03:13:34,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:34,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:13:34,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:34,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:13:34,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:13:34,487 INFO L87 Difference]: Start difference. First operand 324 states and 517 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:34,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:34,522 INFO L93 Difference]: Finished difference Result 566 states and 902 transitions. [2022-10-16 03:13:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:13:34,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-10-16 03:13:34,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:34,528 INFO L225 Difference]: With dead ends: 566 [2022-10-16 03:13:34,528 INFO L226 Difference]: Without dead ends: 566 [2022-10-16 03:13:34,528 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 [2022-10-16 03:13:34,530 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 113 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:34,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 392 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:13:34,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-10-16 03:13:34,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 560. [2022-10-16 03:13:34,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.6046511627906976) internal successors, (897), 559 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:34,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 897 transitions. [2022-10-16 03:13:34,569 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 897 transitions. Word has length 60 [2022-10-16 03:13:34,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:34,569 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 897 transitions. [2022-10-16 03:13:34,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:34,570 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 897 transitions. [2022-10-16 03:13:34,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 03:13:34,573 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:34,573 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] [2022-10-16 03:13:34,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 03:13:34,574 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:34,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:34,575 INFO L85 PathProgramCache]: Analyzing trace with hash 291448600, now seen corresponding path program 1 times [2022-10-16 03:13:34,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:34,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489359579] [2022-10-16 03:13:34,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:34,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:34,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:34,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:34,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489359579] [2022-10-16 03:13:34,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489359579] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:34,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:34,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:13:34,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471037269] [2022-10-16 03:13:34,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:34,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:13:34,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:34,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:13:34,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:13:34,745 INFO L87 Difference]: Start difference. First operand 560 states and 897 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:34,958 INFO L93 Difference]: Finished difference Result 2350 states and 3812 transitions. [2022-10-16 03:13:34,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 03:13:34,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-10-16 03:13:34,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:34,974 INFO L225 Difference]: With dead ends: 2350 [2022-10-16 03:13:34,974 INFO L226 Difference]: Without dead ends: 2350 [2022-10-16 03:13:34,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 03:13:34,977 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 851 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:34,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1318 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:13:34,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2022-10-16 03:13:35,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 1048. [2022-10-16 03:13:35,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 1047 states have (on average 1.6131805157593124) internal successors, (1689), 1047 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1689 transitions. [2022-10-16 03:13:35,035 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1689 transitions. Word has length 62 [2022-10-16 03:13:35,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:35,036 INFO L495 AbstractCegarLoop]: Abstraction has 1048 states and 1689 transitions. [2022-10-16 03:13:35,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:35,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1689 transitions. [2022-10-16 03:13:35,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 03:13:35,041 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:35,042 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] [2022-10-16 03:13:35,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 03:13:35,042 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:35,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:35,043 INFO L85 PathProgramCache]: Analyzing trace with hash 382467820, now seen corresponding path program 1 times [2022-10-16 03:13:35,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:35,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293630857] [2022-10-16 03:13:35,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:35,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:35,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:35,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:35,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293630857] [2022-10-16 03:13:35,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293630857] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:35,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:35,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:13:35,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109044137] [2022-10-16 03:13:35,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:35,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:13:35,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:35,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:13:35,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:13:35,185 INFO L87 Difference]: Start difference. First operand 1048 states and 1689 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 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) [2022-10-16 03:13:35,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:35,270 INFO L93 Difference]: Finished difference Result 2824 states and 4571 transitions. [2022-10-16 03:13:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:13:35,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 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 [2022-10-16 03:13:35,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:35,287 INFO L225 Difference]: With dead ends: 2824 [2022-10-16 03:13:35,288 INFO L226 Difference]: Without dead ends: 2824 [2022-10-16 03:13:35,288 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 [2022-10-16 03:13:35,290 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 404 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:35,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 709 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:13:35,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2022-10-16 03:13:35,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 1927. [2022-10-16 03:13:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1927 states, 1926 states have (on average 1.6137071651090342) internal successors, (3108), 1926 states have internal predecessors, (3108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:35,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 3108 transitions. [2022-10-16 03:13:35,359 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 3108 transitions. Word has length 63 [2022-10-16 03:13:35,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:35,359 INFO L495 AbstractCegarLoop]: Abstraction has 1927 states and 3108 transitions. [2022-10-16 03:13:35,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 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) [2022-10-16 03:13:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 3108 transitions. [2022-10-16 03:13:35,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 03:13:35,363 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:35,363 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] [2022-10-16 03:13:35,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 03:13:35,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:35,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:35,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1086345633, now seen corresponding path program 1 times [2022-10-16 03:13:35,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:35,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396768163] [2022-10-16 03:13:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:35,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:35,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:35,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:35,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396768163] [2022-10-16 03:13:35,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396768163] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:35,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:35,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:13:35,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356752061] [2022-10-16 03:13:35,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:35,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:13:35,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:35,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:13:35,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:13:35,483 INFO L87 Difference]: Start difference. First operand 1927 states and 3108 transitions. Second operand has 4 states, 4 states have (on average 16.0) 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) [2022-10-16 03:13:35,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:35,580 INFO L93 Difference]: Finished difference Result 3793 states and 6144 transitions. [2022-10-16 03:13:35,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:13:35,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) 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 [2022-10-16 03:13:35,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:35,624 INFO L225 Difference]: With dead ends: 3793 [2022-10-16 03:13:35,624 INFO L226 Difference]: Without dead ends: 3793 [2022-10-16 03:13:35,624 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 [2022-10-16 03:13:35,625 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 402 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:35,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 717 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:13:35,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3793 states. [2022-10-16 03:13:35,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3793 to 2844. [2022-10-16 03:13:35,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2844 states, 2843 states have (on average 1.6120295462539571) internal successors, (4583), 2843 states have internal predecessors, (4583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:35,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 4583 transitions. [2022-10-16 03:13:35,712 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 4583 transitions. Word has length 64 [2022-10-16 03:13:35,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:35,712 INFO L495 AbstractCegarLoop]: Abstraction has 2844 states and 4583 transitions. [2022-10-16 03:13:35,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) 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) [2022-10-16 03:13:35,713 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 4583 transitions. [2022-10-16 03:13:35,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 03:13:35,715 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:35,715 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] [2022-10-16 03:13:35,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 03:13:35,716 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:35,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:35,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1879078355, now seen corresponding path program 1 times [2022-10-16 03:13:35,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:35,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13642081] [2022-10-16 03:13:35,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:35,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:35,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:35,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:35,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13642081] [2022-10-16 03:13:35,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13642081] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:35,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:35,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:13:35,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046167352] [2022-10-16 03:13:35,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:35,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:13:35,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:35,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:13:35,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:13:35,798 INFO L87 Difference]: Start difference. First operand 2844 states and 4583 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2022-10-16 03:13:35,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:35,839 INFO L93 Difference]: Finished difference Result 4227 states and 6790 transitions. [2022-10-16 03:13:35,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:13:35,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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 [2022-10-16 03:13:35,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:35,861 INFO L225 Difference]: With dead ends: 4227 [2022-10-16 03:13:35,861 INFO L226 Difference]: Without dead ends: 4227 [2022-10-16 03:13:35,862 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 [2022-10-16 03:13:35,863 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 117 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:35,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 463 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:13:35,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4227 states. [2022-10-16 03:13:35,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4227 to 4225. [2022-10-16 03:13:35,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4225 states, 4224 states have (on average 1.6072443181818181) internal successors, (6789), 4224 states have internal predecessors, (6789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:35,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4225 states to 4225 states and 6789 transitions. [2022-10-16 03:13:35,973 INFO L78 Accepts]: Start accepts. Automaton has 4225 states and 6789 transitions. Word has length 65 [2022-10-16 03:13:35,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:35,974 INFO L495 AbstractCegarLoop]: Abstraction has 4225 states and 6789 transitions. [2022-10-16 03:13:35,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2022-10-16 03:13:35,974 INFO L276 IsEmpty]: Start isEmpty. Operand 4225 states and 6789 transitions. [2022-10-16 03:13:35,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 03:13:35,976 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:35,976 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] [2022-10-16 03:13:35,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 03:13:35,976 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:35,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:35,977 INFO L85 PathProgramCache]: Analyzing trace with hash -450865020, now seen corresponding path program 1 times [2022-10-16 03:13:35,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:35,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499156766] [2022-10-16 03:13:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:35,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:36,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:36,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:36,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499156766] [2022-10-16 03:13:36,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499156766] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:36,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:36,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:13:36,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289678578] [2022-10-16 03:13:36,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:36,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:13:36,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:36,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:13:36,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:13:36,049 INFO L87 Difference]: Start difference. First operand 4225 states and 6789 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2022-10-16 03:13:36,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:36,095 INFO L93 Difference]: Finished difference Result 5821 states and 9322 transitions. [2022-10-16 03:13:36,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:13:36,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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 [2022-10-16 03:13:36,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:36,123 INFO L225 Difference]: With dead ends: 5821 [2022-10-16 03:13:36,123 INFO L226 Difference]: Without dead ends: 5821 [2022-10-16 03:13:36,123 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 [2022-10-16 03:13:36,124 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 112 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:36,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 446 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:13:36,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5821 states. [2022-10-16 03:13:36,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5821 to 5819. [2022-10-16 03:13:36,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5819 states, 5818 states have (on average 1.6020969405293914) internal successors, (9321), 5818 states have internal predecessors, (9321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:36,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5819 states to 5819 states and 9321 transitions. [2022-10-16 03:13:36,301 INFO L78 Accepts]: Start accepts. Automaton has 5819 states and 9321 transitions. Word has length 65 [2022-10-16 03:13:36,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:36,301 INFO L495 AbstractCegarLoop]: Abstraction has 5819 states and 9321 transitions. [2022-10-16 03:13:36,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2022-10-16 03:13:36,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5819 states and 9321 transitions. [2022-10-16 03:13:36,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 03:13:36,303 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:36,303 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] [2022-10-16 03:13:36,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 03:13:36,304 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:36,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:36,304 INFO L85 PathProgramCache]: Analyzing trace with hash 629635603, now seen corresponding path program 1 times [2022-10-16 03:13:36,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:36,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623874658] [2022-10-16 03:13:36,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:36,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:36,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:36,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:36,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623874658] [2022-10-16 03:13:36,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623874658] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:36,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:36,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:13:36,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913434631] [2022-10-16 03:13:36,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:36,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:13:36,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:36,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:13:36,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:13:36,410 INFO L87 Difference]: Start difference. First operand 5819 states and 9321 transitions. Second operand has 4 states, 4 states have (on average 16.25) 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) [2022-10-16 03:13:36,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:36,554 INFO L93 Difference]: Finished difference Result 12519 states and 20065 transitions. [2022-10-16 03:13:36,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:13:36,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) 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 [2022-10-16 03:13:36,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:36,604 INFO L225 Difference]: With dead ends: 12519 [2022-10-16 03:13:36,605 INFO L226 Difference]: Without dead ends: 12519 [2022-10-16 03:13:36,605 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 [2022-10-16 03:13:36,606 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 400 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:36,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 583 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:13:36,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12519 states. [2022-10-16 03:13:36,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12519 to 9133. [2022-10-16 03:13:36,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9133 states, 9132 states have (on average 1.5958169075777486) internal successors, (14573), 9132 states have internal predecessors, (14573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:36,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9133 states to 9133 states and 14573 transitions. [2022-10-16 03:13:36,925 INFO L78 Accepts]: Start accepts. Automaton has 9133 states and 14573 transitions. Word has length 65 [2022-10-16 03:13:36,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:36,926 INFO L495 AbstractCegarLoop]: Abstraction has 9133 states and 14573 transitions. [2022-10-16 03:13:36,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) 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) [2022-10-16 03:13:36,926 INFO L276 IsEmpty]: Start isEmpty. Operand 9133 states and 14573 transitions. [2022-10-16 03:13:36,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 03:13:36,927 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:36,927 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] [2022-10-16 03:13:36,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 03:13:36,928 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:36,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:36,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1734684554, now seen corresponding path program 1 times [2022-10-16 03:13:36,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:36,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725535971] [2022-10-16 03:13:36,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:36,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:36,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:36,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:36,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725535971] [2022-10-16 03:13:36,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725535971] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:36,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:36,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:13:36,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214245276] [2022-10-16 03:13:36,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:36,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:13:36,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:36,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:13:36,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:13:36,996 INFO L87 Difference]: Start difference. First operand 9133 states and 14573 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2022-10-16 03:13:37,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:37,086 INFO L93 Difference]: Finished difference Result 12682 states and 20350 transitions. [2022-10-16 03:13:37,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:13:37,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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 [2022-10-16 03:13:37,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:37,119 INFO L225 Difference]: With dead ends: 12682 [2022-10-16 03:13:37,119 INFO L226 Difference]: Without dead ends: 12682 [2022-10-16 03:13:37,119 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 [2022-10-16 03:13:37,120 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 122 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:37,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 489 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:13:37,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12682 states. [2022-10-16 03:13:37,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12682 to 12680. [2022-10-16 03:13:37,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12680 states, 12679 states have (on average 1.6049372978941556) internal successors, (20349), 12679 states have internal predecessors, (20349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:37,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12680 states to 12680 states and 20349 transitions. [2022-10-16 03:13:37,573 INFO L78 Accepts]: Start accepts. Automaton has 12680 states and 20349 transitions. Word has length 65 [2022-10-16 03:13:37,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:37,574 INFO L495 AbstractCegarLoop]: Abstraction has 12680 states and 20349 transitions. [2022-10-16 03:13:37,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 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) [2022-10-16 03:13:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand 12680 states and 20349 transitions. [2022-10-16 03:13:37,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-16 03:13:37,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:37,576 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] [2022-10-16 03:13:37,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 03:13:37,577 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:37,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:37,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2027885532, now seen corresponding path program 1 times [2022-10-16 03:13:37,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:37,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291755783] [2022-10-16 03:13:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:37,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:37,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:37,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:37,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291755783] [2022-10-16 03:13:37,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291755783] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:37,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:37,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:13:37,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416095826] [2022-10-16 03:13:37,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:37,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:13:37,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:37,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:13:37,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:13:37,923 INFO L87 Difference]: Start difference. First operand 12680 states and 20349 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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) [2022-10-16 03:13:38,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:38,118 INFO L93 Difference]: Finished difference Result 12682 states and 20200 transitions. [2022-10-16 03:13:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:13:38,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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 [2022-10-16 03:13:38,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:38,150 INFO L225 Difference]: With dead ends: 12682 [2022-10-16 03:13:38,150 INFO L226 Difference]: Without dead ends: 12682 [2022-10-16 03:13:38,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:13:38,151 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 172 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:38,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 764 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:13:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12682 states. [2022-10-16 03:13:38,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12682 to 12680. [2022-10-16 03:13:38,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12680 states, 12679 states have (on average 1.5931067118857953) internal successors, (20199), 12679 states have internal predecessors, (20199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:38,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12680 states to 12680 states and 20199 transitions. [2022-10-16 03:13:38,432 INFO L78 Accepts]: Start accepts. Automaton has 12680 states and 20199 transitions. Word has length 67 [2022-10-16 03:13:38,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:38,433 INFO L495 AbstractCegarLoop]: Abstraction has 12680 states and 20199 transitions. [2022-10-16 03:13:38,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 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) [2022-10-16 03:13:38,433 INFO L276 IsEmpty]: Start isEmpty. Operand 12680 states and 20199 transitions. [2022-10-16 03:13:38,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-16 03:13:38,434 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:38,434 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] [2022-10-16 03:13:38,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 03:13:38,434 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:38,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:38,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1776446511, now seen corresponding path program 1 times [2022-10-16 03:13:38,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:38,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165108807] [2022-10-16 03:13:38,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:38,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:38,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:38,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:38,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165108807] [2022-10-16 03:13:38,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165108807] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:38,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:38,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:13:38,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132061762] [2022-10-16 03:13:38,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:38,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:13:38,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:38,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:13:38,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:13:38,756 INFO L87 Difference]: Start difference. First operand 12680 states and 20199 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 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) [2022-10-16 03:13:38,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:38,941 INFO L93 Difference]: Finished difference Result 23969 states and 37906 transitions. [2022-10-16 03:13:38,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:13:38,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 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 [2022-10-16 03:13:38,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:39,007 INFO L225 Difference]: With dead ends: 23969 [2022-10-16 03:13:39,007 INFO L226 Difference]: Without dead ends: 23969 [2022-10-16 03:13:39,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:13:39,009 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 281 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:39,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 583 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:13:39,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23969 states. [2022-10-16 03:13:39,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23969 to 23967. [2022-10-16 03:13:39,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23967 states, 23966 states have (on average 1.5816156221313526) internal successors, (37905), 23966 states have internal predecessors, (37905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:39,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23967 states to 23967 states and 37905 transitions. [2022-10-16 03:13:39,631 INFO L78 Accepts]: Start accepts. Automaton has 23967 states and 37905 transitions. Word has length 70 [2022-10-16 03:13:39,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:39,631 INFO L495 AbstractCegarLoop]: Abstraction has 23967 states and 37905 transitions. [2022-10-16 03:13:39,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 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) [2022-10-16 03:13:39,632 INFO L276 IsEmpty]: Start isEmpty. Operand 23967 states and 37905 transitions. [2022-10-16 03:13:39,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 03:13:39,632 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:39,632 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:13:39,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 03:13:39,638 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:39,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:39,639 INFO L85 PathProgramCache]: Analyzing trace with hash 762823713, now seen corresponding path program 1 times [2022-10-16 03:13:39,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:39,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828374866] [2022-10-16 03:13:39,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:39,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:40,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:40,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:40,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828374866] [2022-10-16 03:13:40,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828374866] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:40,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:40,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:13:40,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213999339] [2022-10-16 03:13:40,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:40,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:13:40,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:40,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:13:40,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:13:40,035 INFO L87 Difference]: Start difference. First operand 23967 states and 37905 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 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) [2022-10-16 03:13:40,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:40,268 INFO L93 Difference]: Finished difference Result 48097 states and 75284 transitions. [2022-10-16 03:13:40,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:13:40,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 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 [2022-10-16 03:13:40,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:40,472 INFO L225 Difference]: With dead ends: 48097 [2022-10-16 03:13:40,480 INFO L226 Difference]: Without dead ends: 48097 [2022-10-16 03:13:40,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:13:40,481 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 250 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:40,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 980 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:13:40,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48097 states. [2022-10-16 03:13:41,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48097 to 24741. [2022-10-16 03:13:41,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24741 states, 24740 states have (on average 1.563055780113177) internal successors, (38670), 24740 states have internal predecessors, (38670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:41,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24741 states to 24741 states and 38670 transitions. [2022-10-16 03:13:41,396 INFO L78 Accepts]: Start accepts. Automaton has 24741 states and 38670 transitions. Word has length 71 [2022-10-16 03:13:41,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:41,397 INFO L495 AbstractCegarLoop]: Abstraction has 24741 states and 38670 transitions. [2022-10-16 03:13:41,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 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) [2022-10-16 03:13:41,397 INFO L276 IsEmpty]: Start isEmpty. Operand 24741 states and 38670 transitions. [2022-10-16 03:13:41,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-16 03:13:41,400 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:41,400 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:13:41,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 03:13:41,400 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:41,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:41,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1613729099, now seen corresponding path program 1 times [2022-10-16 03:13:41,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:41,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733381379] [2022-10-16 03:13:41,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:41,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:41,681 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 03:13:41,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:41,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733381379] [2022-10-16 03:13:41,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733381379] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:41,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:41,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:13:41,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908672645] [2022-10-16 03:13:41,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:41,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:13:41,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:41,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:13:41,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:13:41,683 INFO L87 Difference]: Start difference. First operand 24741 states and 38670 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:42,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:42,065 INFO L93 Difference]: Finished difference Result 50224 states and 78467 transitions. [2022-10-16 03:13:42,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:13:42,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-10-16 03:13:42,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:42,211 INFO L225 Difference]: With dead ends: 50224 [2022-10-16 03:13:42,211 INFO L226 Difference]: Without dead ends: 50224 [2022-10-16 03:13:42,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:13:42,213 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 513 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:42,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 934 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:13:42,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50224 states. [2022-10-16 03:13:42,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50224 to 38776. [2022-10-16 03:13:43,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38776 states, 38775 states have (on average 1.5599742101869762) internal successors, (60488), 38775 states have internal predecessors, (60488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:43,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38776 states to 38776 states and 60488 transitions. [2022-10-16 03:13:43,158 INFO L78 Accepts]: Start accepts. Automaton has 38776 states and 60488 transitions. Word has length 93 [2022-10-16 03:13:43,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:43,159 INFO L495 AbstractCegarLoop]: Abstraction has 38776 states and 60488 transitions. [2022-10-16 03:13:43,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:43,159 INFO L276 IsEmpty]: Start isEmpty. Operand 38776 states and 60488 transitions. [2022-10-16 03:13:43,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-16 03:13:43,162 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:43,163 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:13:43,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 03:13:43,163 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:43,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:43,164 INFO L85 PathProgramCache]: Analyzing trace with hash 351294822, now seen corresponding path program 1 times [2022-10-16 03:13:43,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:43,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095893205] [2022-10-16 03:13:43,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:43,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:43,343 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 03:13:43,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:43,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095893205] [2022-10-16 03:13:43,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095893205] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:43,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:43,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:13:43,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463156337] [2022-10-16 03:13:43,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:43,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:13:43,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:43,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:13:43,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:13:43,348 INFO L87 Difference]: Start difference. First operand 38776 states and 60488 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:43,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:43,789 INFO L93 Difference]: Finished difference Result 54728 states and 85579 transitions. [2022-10-16 03:13:43,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:13:43,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-10-16 03:13:43,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:43,909 INFO L225 Difference]: With dead ends: 54728 [2022-10-16 03:13:43,910 INFO L226 Difference]: Without dead ends: 54728 [2022-10-16 03:13:43,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:13:43,911 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 516 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:43,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 931 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:13:43,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54728 states. [2022-10-16 03:13:44,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54728 to 52462. [2022-10-16 03:13:44,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52462 states, 52461 states have (on average 1.5615409542326681) internal successors, (81920), 52461 states have internal predecessors, (81920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:44,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52462 states to 52462 states and 81920 transitions. [2022-10-16 03:13:44,985 INFO L78 Accepts]: Start accepts. Automaton has 52462 states and 81920 transitions. Word has length 93 [2022-10-16 03:13:44,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:44,986 INFO L495 AbstractCegarLoop]: Abstraction has 52462 states and 81920 transitions. [2022-10-16 03:13:44,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:44,986 INFO L276 IsEmpty]: Start isEmpty. Operand 52462 states and 81920 transitions. [2022-10-16 03:13:44,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-16 03:13:44,991 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:44,991 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:13:44,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 03:13:44,992 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:44,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:44,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1758122900, now seen corresponding path program 1 times [2022-10-16 03:13:44,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:44,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261499962] [2022-10-16 03:13:44,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:44,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 03:13:45,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:45,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261499962] [2022-10-16 03:13:45,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261499962] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:45,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:45,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:13:45,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083057835] [2022-10-16 03:13:45,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:45,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:13:45,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:45,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:13:45,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:13:45,185 INFO L87 Difference]: Start difference. First operand 52462 states and 81920 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:45,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:45,753 INFO L93 Difference]: Finished difference Result 63840 states and 99909 transitions. [2022-10-16 03:13:45,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:13:45,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-10-16 03:13:45,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:45,889 INFO L225 Difference]: With dead ends: 63840 [2022-10-16 03:13:45,889 INFO L226 Difference]: Without dead ends: 63840 [2022-10-16 03:13:45,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:13:45,890 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 521 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:45,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 959 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:13:45,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63840 states. [2022-10-16 03:13:46,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63840 to 61574. [2022-10-16 03:13:46,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61574 states, 61573 states have (on average 1.5631851623276436) internal successors, (96250), 61573 states have internal predecessors, (96250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:47,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61574 states to 61574 states and 96250 transitions. [2022-10-16 03:13:47,036 INFO L78 Accepts]: Start accepts. Automaton has 61574 states and 96250 transitions. Word has length 93 [2022-10-16 03:13:47,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:47,036 INFO L495 AbstractCegarLoop]: Abstraction has 61574 states and 96250 transitions. [2022-10-16 03:13:47,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:47,037 INFO L276 IsEmpty]: Start isEmpty. Operand 61574 states and 96250 transitions. [2022-10-16 03:13:47,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-16 03:13:47,040 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:47,041 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:13:47,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 03:13:47,041 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:47,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:47,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1270260760, now seen corresponding path program 1 times [2022-10-16 03:13:47,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:47,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796555712] [2022-10-16 03:13:47,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:47,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:47,217 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 03:13:47,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:47,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796555712] [2022-10-16 03:13:47,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796555712] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:47,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:47,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:13:47,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037974951] [2022-10-16 03:13:47,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:47,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:13:47,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:47,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:13:47,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:13:47,220 INFO L87 Difference]: Start difference. First operand 61574 states and 96250 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:48,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:48,008 INFO L93 Difference]: Finished difference Result 82531 states and 128876 transitions. [2022-10-16 03:13:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:13:48,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-10-16 03:13:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:48,229 INFO L225 Difference]: With dead ends: 82531 [2022-10-16 03:13:48,229 INFO L226 Difference]: Without dead ends: 82531 [2022-10-16 03:13:48,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:13:48,231 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 228 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:48,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 731 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:13:48,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82531 states. [2022-10-16 03:13:49,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82531 to 80267. [2022-10-16 03:13:49,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80267 states, 80266 states have (on average 1.5606358856801137) internal successors, (125266), 80266 states have internal predecessors, (125266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:49,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80267 states to 80267 states and 125266 transitions. [2022-10-16 03:13:49,826 INFO L78 Accepts]: Start accepts. Automaton has 80267 states and 125266 transitions. Word has length 94 [2022-10-16 03:13:49,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:49,826 INFO L495 AbstractCegarLoop]: Abstraction has 80267 states and 125266 transitions. [2022-10-16 03:13:49,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:49,827 INFO L276 IsEmpty]: Start isEmpty. Operand 80267 states and 125266 transitions. [2022-10-16 03:13:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-16 03:13:49,829 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:49,830 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:13:49,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 03:13:49,830 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:49,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:49,831 INFO L85 PathProgramCache]: Analyzing trace with hash 36164624, now seen corresponding path program 1 times [2022-10-16 03:13:49,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:49,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760516613] [2022-10-16 03:13:49,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:49,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:49,943 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 03:13:49,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:49,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760516613] [2022-10-16 03:13:49,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760516613] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:49,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:49,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:13:49,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142776161] [2022-10-16 03:13:49,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:49,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:13:49,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:49,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:13:49,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:13:49,947 INFO L87 Difference]: Start difference. First operand 80267 states and 125266 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:50,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:50,998 INFO L93 Difference]: Finished difference Result 141816 states and 220804 transitions. [2022-10-16 03:13:50,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:13:50,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-10-16 03:13:50,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:51,352 INFO L225 Difference]: With dead ends: 141816 [2022-10-16 03:13:51,352 INFO L226 Difference]: Without dead ends: 141816 [2022-10-16 03:13:51,353 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 [2022-10-16 03:13:51,354 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 103 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:51,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 386 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:13:51,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141816 states. [2022-10-16 03:13:53,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141816 to 141538. [2022-10-16 03:13:53,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141538 states, 141537 states have (on average 1.5580872845969604) internal successors, (220527), 141537 states have internal predecessors, (220527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:53,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141538 states to 141538 states and 220527 transitions. [2022-10-16 03:13:53,784 INFO L78 Accepts]: Start accepts. Automaton has 141538 states and 220527 transitions. Word has length 94 [2022-10-16 03:13:53,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:53,785 INFO L495 AbstractCegarLoop]: Abstraction has 141538 states and 220527 transitions. [2022-10-16 03:13:53,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:53,785 INFO L276 IsEmpty]: Start isEmpty. Operand 141538 states and 220527 transitions. [2022-10-16 03:13:53,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-16 03:13:53,788 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:53,788 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:13:53,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 03:13:53,789 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:53,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:53,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1988921020, now seen corresponding path program 1 times [2022-10-16 03:13:53,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:53,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056108845] [2022-10-16 03:13:53,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:53,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:54,439 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 03:13:54,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:54,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056108845] [2022-10-16 03:13:54,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056108845] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:54,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:54,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:13:54,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191895769] [2022-10-16 03:13:54,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:54,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:13:54,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:54,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:13:54,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:13:54,441 INFO L87 Difference]: Start difference. First operand 141538 states and 220527 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:55,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:55,220 INFO L93 Difference]: Finished difference Result 174862 states and 272591 transitions. [2022-10-16 03:13:55,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:13:55,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-10-16 03:13:55,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:55,505 INFO L225 Difference]: With dead ends: 174862 [2022-10-16 03:13:55,506 INFO L226 Difference]: Without dead ends: 174862 [2022-10-16 03:13:55,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:13:55,507 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 239 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:55,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 659 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:13:55,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174862 states. [2022-10-16 03:13:58,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174862 to 165834. [2022-10-16 03:13:58,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165834 states, 165833 states have (on average 1.5575971006976899) internal successors, (258301), 165833 states have internal predecessors, (258301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:59,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165834 states to 165834 states and 258301 transitions. [2022-10-16 03:13:59,104 INFO L78 Accepts]: Start accepts. Automaton has 165834 states and 258301 transitions. Word has length 95 [2022-10-16 03:13:59,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:59,105 INFO L495 AbstractCegarLoop]: Abstraction has 165834 states and 258301 transitions. [2022-10-16 03:13:59,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:59,105 INFO L276 IsEmpty]: Start isEmpty. Operand 165834 states and 258301 transitions. [2022-10-16 03:13:59,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-16 03:13:59,108 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:59,108 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:13:59,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 03:13:59,109 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:59,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:59,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1437742065, now seen corresponding path program 1 times [2022-10-16 03:13:59,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:59,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294302659] [2022-10-16 03:13:59,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:59,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 03:13:59,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:59,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294302659] [2022-10-16 03:13:59,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294302659] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:59,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:59,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:13:59,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977039622] [2022-10-16 03:13:59,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:59,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:13:59,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:59,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:13:59,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:13:59,224 INFO L87 Difference]: Start difference. First operand 165834 states and 258301 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:14:01,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:14:01,076 INFO L93 Difference]: Finished difference Result 271380 states and 422026 transitions. [2022-10-16 03:14:01,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:14:01,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-10-16 03:14:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:14:01,538 INFO L225 Difference]: With dead ends: 271380 [2022-10-16 03:14:01,538 INFO L226 Difference]: Without dead ends: 271380 [2022-10-16 03:14:01,538 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 [2022-10-16 03:14:01,539 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 103 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:14:01,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 385 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:14:02,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271380 states. [2022-10-16 03:14:05,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271380 to 270646. [2022-10-16 03:14:06,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270646 states, 270645 states have (on average 1.5566258382752314) internal successors, (421293), 270645 states have internal predecessors, (421293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:14:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270646 states to 270646 states and 421293 transitions. [2022-10-16 03:14:07,288 INFO L78 Accepts]: Start accepts. Automaton has 270646 states and 421293 transitions. Word has length 95 [2022-10-16 03:14:07,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:14:07,289 INFO L495 AbstractCegarLoop]: Abstraction has 270646 states and 421293 transitions. [2022-10-16 03:14:07,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:14:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 270646 states and 421293 transitions. [2022-10-16 03:14:07,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-16 03:14:07,293 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:14:07,293 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:14:07,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 03:14:07,293 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:14:07,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:14:07,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1035854142, now seen corresponding path program 1 times [2022-10-16 03:14:07,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:14:07,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156295441] [2022-10-16 03:14:07,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:14:07,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:14:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:14:07,385 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:14:07,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:14:07,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156295441] [2022-10-16 03:14:07,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156295441] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:14:07,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:14:07,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:14:07,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015998917] [2022-10-16 03:14:07,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:14:07,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:14:07,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:14:07,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:14:07,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:14:07,387 INFO L87 Difference]: Start difference. First operand 270646 states and 421293 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:14:10,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:14:10,247 INFO L93 Difference]: Finished difference Result 527051 states and 815285 transitions. [2022-10-16 03:14:10,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:14:10,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-10-16 03:14:10,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:14:11,933 INFO L225 Difference]: With dead ends: 527051 [2022-10-16 03:14:11,933 INFO L226 Difference]: Without dead ends: 527051 [2022-10-16 03:14:11,933 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 [2022-10-16 03:14:11,934 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 142 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:14:11,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 472 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:14:12,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527051 states. [2022-10-16 03:14:19,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527051 to 527049. [2022-10-16 03:14:20,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527049 states, 527048 states have (on average 1.5468875700125986) internal successors, (815284), 527048 states have internal predecessors, (815284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:14:24,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527049 states to 527049 states and 815284 transitions. [2022-10-16 03:14:24,936 INFO L78 Accepts]: Start accepts. Automaton has 527049 states and 815284 transitions. Word has length 95 [2022-10-16 03:14:24,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:14:24,936 INFO L495 AbstractCegarLoop]: Abstraction has 527049 states and 815284 transitions. [2022-10-16 03:14:24,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:14:24,937 INFO L276 IsEmpty]: Start isEmpty. Operand 527049 states and 815284 transitions. [2022-10-16 03:14:24,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-16 03:14:24,948 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:14:24,948 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:14:24,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 03:14:24,949 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:14:24,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:14:24,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1015816888, now seen corresponding path program 1 times [2022-10-16 03:14:24,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:14:24,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297863208] [2022-10-16 03:14:24,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:14:24,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:14:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:14:25,068 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:14:25,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:14:25,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297863208] [2022-10-16 03:14:25,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297863208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:14:25,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:14:25,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:14:25,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258110509] [2022-10-16 03:14:25,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:14:25,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:14:25,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:14:25,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:14:25,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:14:25,072 INFO L87 Difference]: Start difference. First operand 527049 states and 815284 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:14:31,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:14:31,257 INFO L93 Difference]: Finished difference Result 1023637 states and 1572502 transitions. [2022-10-16 03:14:31,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:14:31,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-10-16 03:14:31,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:14:35,935 INFO L225 Difference]: With dead ends: 1023637 [2022-10-16 03:14:35,936 INFO L226 Difference]: Without dead ends: 1023637 [2022-10-16 03:14:35,936 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 [2022-10-16 03:14:35,942 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 160 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:14:35,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 506 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:14:37,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023637 states. [2022-10-16 03:14:53,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023637 to 1023635. [2022-10-16 03:14:56,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023635 states, 1023634 states have (on average 1.5361945773587045) internal successors, (1572501), 1023634 states have internal predecessors, (1572501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:15:04,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023635 states to 1023635 states and 1572501 transitions. [2022-10-16 03:15:04,698 INFO L78 Accepts]: Start accepts. Automaton has 1023635 states and 1572501 transitions. Word has length 95 [2022-10-16 03:15:04,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:15:04,699 INFO L495 AbstractCegarLoop]: Abstraction has 1023635 states and 1572501 transitions. [2022-10-16 03:15:04,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:15:04,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1023635 states and 1572501 transitions. [2022-10-16 03:15:04,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-16 03:15:04,707 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:15:04,708 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:15:04,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 03:15:04,708 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:15:04,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:15:04,709 INFO L85 PathProgramCache]: Analyzing trace with hash 393120711, now seen corresponding path program 1 times [2022-10-16 03:15:04,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:15:04,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850891253] [2022-10-16 03:15:04,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:15:04,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:15:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:15:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:15:04,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:15:05,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850891253] [2022-10-16 03:15:05,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850891253] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:15:05,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:15:05,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:15:05,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515198006] [2022-10-16 03:15:05,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:15:05,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:15:05,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:15:05,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:15:05,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:15:05,005 INFO L87 Difference]: Start difference. First operand 1023635 states and 1572501 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:15:12,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:15:12,140 INFO L93 Difference]: Finished difference Result 1016021 states and 1549654 transitions. [2022-10-16 03:15:12,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:15:12,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-10-16 03:15:12,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:15:15,824 INFO L225 Difference]: With dead ends: 1016021 [2022-10-16 03:15:15,837 INFO L226 Difference]: Without dead ends: 1016021 [2022-10-16 03:15:15,840 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 [2022-10-16 03:15:15,841 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 96 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:15:15,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 451 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:15:17,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016021 states.