/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/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:18:55,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:18:55,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:18:55,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:18:55,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:18:55,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:18:55,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:18:55,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:18:55,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:18:55,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:18:55,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:18:55,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:18:55,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:18:55,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:18:55,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:18:55,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:18:55,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:18:55,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:18:55,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:18:56,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:18:56,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:18:56,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:18:56,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:18:56,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:18:56,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:18:56,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:18:56,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:18:56,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:18:56,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 17:18:56,096 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:18:56,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:18:56,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:18:56,098 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:18:56,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:18:56,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:18:56,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:18:56,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:18:56,105 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:18:56,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:18:56,107 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:18:56,107 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:18:56,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:18:56,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:18:56,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:18:56,108 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:18:56,108 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:18:56,109 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:18:56,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:18:56,109 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:18:56,109 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:18:56,110 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:18:56,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:18:56,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:18:56,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:18:56,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:18:56,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:18:56,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:18:56,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:18:56,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:18:56,113 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:18:56,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:18:56,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:18:56,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:18:56,656 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:18:56,657 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:18:56,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c [2022-10-15 17:18:56,795 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91a0c1002/7dec6007eb684f118c86aef48220ccf1/FLAG8b5885bdf [2022-10-15 17:18:57,825 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:18:57,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c [2022-10-15 17:18:57,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91a0c1002/7dec6007eb684f118c86aef48220ccf1/FLAG8b5885bdf [2022-10-15 17:18:57,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91a0c1002/7dec6007eb684f118c86aef48220ccf1 [2022-10-15 17:18:57,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:18:57,889 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:18:57,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:18:57,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:18:57,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:18:57,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:18:57" (1/1) ... [2022-10-15 17:18:57,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142ff349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:57, skipping insertion in model container [2022-10-15 17:18:57,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:18:57" (1/1) ... [2022-10-15 17:18:57,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:18:57,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:18:58,441 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/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c[28194,28207] [2022-10-15 17:18:58,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:18:58,462 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:18:58,620 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/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c[28194,28207] [2022-10-15 17:18:58,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:18:58,656 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:18:58,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58 WrapperNode [2022-10-15 17:18:58,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:18:58,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:18:58,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:18:58,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:18:58,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58" (1/1) ... [2022-10-15 17:18:58,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58" (1/1) ... [2022-10-15 17:18:58,790 INFO L138 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 951 [2022-10-15 17:18:58,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:18:58,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:18:58,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:18:58,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:18:58,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58" (1/1) ... [2022-10-15 17:18:58,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58" (1/1) ... [2022-10-15 17:18:58,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58" (1/1) ... [2022-10-15 17:18:58,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58" (1/1) ... [2022-10-15 17:18:58,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58" (1/1) ... [2022-10-15 17:18:58,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58" (1/1) ... [2022-10-15 17:18:58,887 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58" (1/1) ... [2022-10-15 17:18:58,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58" (1/1) ... [2022-10-15 17:18:58,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:18:58,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:18:58,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:18:58,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:18:58,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58" (1/1) ... [2022-10-15 17:18:58,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:18:58,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:18:58,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 17:18:59,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 17:18:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:18:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:18:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:18:59,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:18:59,350 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:18:59,353 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:19:00,856 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:19:00,876 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:19:00,876 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:19:00,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:19:00 BoogieIcfgContainer [2022-10-15 17:19:00,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:19:00,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:19:00,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:19:00,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:19:00,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:18:57" (1/3) ... [2022-10-15 17:19:00,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72669a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:19:00, skipping insertion in model container [2022-10-15 17:19:00,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:18:58" (2/3) ... [2022-10-15 17:19:00,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72669a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:19:00, skipping insertion in model container [2022-10-15 17:19:00,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:19:00" (3/3) ... [2022-10-15 17:19:00,898 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.BOUNDED-8.pals.c [2022-10-15 17:19:00,931 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:19:00,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:19:01,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:19:01,060 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;@25ddf1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:19:01,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:19:01,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 305 states, 302 states have (on average 1.8112582781456954) internal successors, (547), 304 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:01,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 17:19:01,091 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:01,092 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] [2022-10-15 17:19:01,094 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:01,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:01,104 INFO L85 PathProgramCache]: Analyzing trace with hash -2111053517, now seen corresponding path program 1 times [2022-10-15 17:19:01,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:01,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727971651] [2022-10-15 17:19:01,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:01,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:01,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:01,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727971651] [2022-10-15 17:19:01,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727971651] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:01,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:01,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:19:01,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096796877] [2022-10-15 17:19:01,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:01,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 17:19:01,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:01,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 17:19:01,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:19:01,833 INFO L87 Difference]: Start difference. First operand has 305 states, 302 states have (on average 1.8112582781456954) internal successors, (547), 304 states have internal predecessors, (547), 0 states have call successors, (0), 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 2 states, 2 states have (on average 29.0) internal successors, (58), 2 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) [2022-10-15 17:19:01,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:01,936 INFO L93 Difference]: Finished difference Result 305 states and 544 transitions. [2022-10-15 17:19:01,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 17:19:01,942 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 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 [2022-10-15 17:19:01,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:01,983 INFO L225 Difference]: With dead ends: 305 [2022-10-15 17:19:01,983 INFO L226 Difference]: Without dead ends: 303 [2022-10-15 17:19:01,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:19:02,000 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:02,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:02,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-10-15 17:19:02,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2022-10-15 17:19:02,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 301 states have (on average 1.8006644518272426) internal successors, (542), 302 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:02,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 542 transitions. [2022-10-15 17:19:02,154 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 542 transitions. Word has length 58 [2022-10-15 17:19:02,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:02,157 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 542 transitions. [2022-10-15 17:19:02,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 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) [2022-10-15 17:19:02,158 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 542 transitions. [2022-10-15 17:19:02,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 17:19:02,169 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:02,169 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] [2022-10-15 17:19:02,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:19:02,172 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:02,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:02,174 INFO L85 PathProgramCache]: Analyzing trace with hash -2109692741, now seen corresponding path program 1 times [2022-10-15 17:19:02,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:02,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771329368] [2022-10-15 17:19:02,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:02,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:02,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:02,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:02,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771329368] [2022-10-15 17:19:02,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771329368] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:02,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:02,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:19:02,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003999542] [2022-10-15 17:19:02,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:02,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:19:02,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:02,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:19:02,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:02,770 INFO L87 Difference]: Start difference. First operand 303 states and 542 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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) [2022-10-15 17:19:02,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:02,949 INFO L93 Difference]: Finished difference Result 306 states and 544 transitions. [2022-10-15 17:19:02,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:19:02,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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 [2022-10-15 17:19:02,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:02,953 INFO L225 Difference]: With dead ends: 306 [2022-10-15 17:19:02,953 INFO L226 Difference]: Without dead ends: 303 [2022-10-15 17:19:02,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:19:02,956 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 3 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:02,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2115 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:02,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-10-15 17:19:02,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2022-10-15 17:19:02,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 301 states have (on average 1.6611295681063123) internal successors, (500), 302 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:02,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 500 transitions. [2022-10-15 17:19:02,973 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 500 transitions. Word has length 58 [2022-10-15 17:19:02,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:02,974 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 500 transitions. [2022-10-15 17:19:02,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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) [2022-10-15 17:19:02,975 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 500 transitions. [2022-10-15 17:19:02,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-15 17:19:02,978 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:02,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:02,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:19:02,979 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:02,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:02,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1836285773, now seen corresponding path program 1 times [2022-10-15 17:19:02,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:02,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913909905] [2022-10-15 17:19:02,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:02,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:03,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:03,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913909905] [2022-10-15 17:19:03,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913909905] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:03,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:03,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:03,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687454368] [2022-10-15 17:19:03,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:03,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:03,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:03,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:03,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:03,448 INFO L87 Difference]: Start difference. First operand 303 states and 500 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:03,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:03,484 INFO L93 Difference]: Finished difference Result 411 states and 685 transitions. [2022-10-15 17:19:03,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:03,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-10-15 17:19:03,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:03,489 INFO L225 Difference]: With dead ends: 411 [2022-10-15 17:19:03,490 INFO L226 Difference]: Without dead ends: 411 [2022-10-15 17:19:03,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:03,493 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 184 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:03,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 992 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:03,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-10-15 17:19:03,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 304. [2022-10-15 17:19:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 302 states have (on average 1.6589403973509933) internal successors, (501), 303 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:03,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 501 transitions. [2022-10-15 17:19:03,514 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 501 transitions. Word has length 99 [2022-10-15 17:19:03,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:03,516 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 501 transitions. [2022-10-15 17:19:03,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 501 transitions. [2022-10-15 17:19:03,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-15 17:19:03,520 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:03,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:03,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:19:03,522 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:03,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:03,523 INFO L85 PathProgramCache]: Analyzing trace with hash 255571390, now seen corresponding path program 1 times [2022-10-15 17:19:03,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:03,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293231735] [2022-10-15 17:19:03,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:03,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:03,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:03,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:03,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293231735] [2022-10-15 17:19:03,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293231735] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:03,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:03,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:03,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397481768] [2022-10-15 17:19:03,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:03,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:03,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:03,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:03,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:03,827 INFO L87 Difference]: Start difference. First operand 304 states and 501 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:03,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:03,890 INFO L93 Difference]: Finished difference Result 404 states and 663 transitions. [2022-10-15 17:19:03,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:03,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-10-15 17:19:03,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:03,896 INFO L225 Difference]: With dead ends: 404 [2022-10-15 17:19:03,897 INFO L226 Difference]: Without dead ends: 404 [2022-10-15 17:19:03,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:03,910 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 159 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:03,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 1085 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:03,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-10-15 17:19:03,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 399. [2022-10-15 17:19:03,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 397 states have (on average 1.6624685138539044) internal successors, (660), 398 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 660 transitions. [2022-10-15 17:19:03,933 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 660 transitions. Word has length 118 [2022-10-15 17:19:03,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:03,934 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 660 transitions. [2022-10-15 17:19:03,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:03,935 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 660 transitions. [2022-10-15 17:19:03,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-15 17:19:03,946 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:03,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:03,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:19:03,947 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:03,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:03,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1923540700, now seen corresponding path program 1 times [2022-10-15 17:19:03,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:03,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536316635] [2022-10-15 17:19:03,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:03,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:04,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:04,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:04,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536316635] [2022-10-15 17:19:04,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536316635] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:04,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:04,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:04,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807403391] [2022-10-15 17:19:04,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:04,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:04,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:04,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:04,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:04,162 INFO L87 Difference]: Start difference. First operand 399 states and 660 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:04,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:04,208 INFO L93 Difference]: Finished difference Result 491 states and 813 transitions. [2022-10-15 17:19:04,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:04,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-10-15 17:19:04,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:04,214 INFO L225 Difference]: With dead ends: 491 [2022-10-15 17:19:04,214 INFO L226 Difference]: Without dead ends: 491 [2022-10-15 17:19:04,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:04,220 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 168 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:04,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 1110 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:04,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-10-15 17:19:04,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 486. [2022-10-15 17:19:04,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 484 states have (on average 1.6735537190082646) internal successors, (810), 485 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:04,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 810 transitions. [2022-10-15 17:19:04,252 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 810 transitions. Word has length 121 [2022-10-15 17:19:04,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:04,253 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 810 transitions. [2022-10-15 17:19:04,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:04,257 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 810 transitions. [2022-10-15 17:19:04,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-15 17:19:04,260 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:04,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:04,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:19:04,262 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:04,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:04,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1109580608, now seen corresponding path program 1 times [2022-10-15 17:19:04,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:04,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015955437] [2022-10-15 17:19:04,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:04,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:04,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:04,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:04,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015955437] [2022-10-15 17:19:04,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015955437] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:04,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:04,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:04,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484499307] [2022-10-15 17:19:04,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:04,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:04,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:04,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:04,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:04,570 INFO L87 Difference]: Start difference. First operand 486 states and 810 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:04,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:04,600 INFO L93 Difference]: Finished difference Result 751 states and 1252 transitions. [2022-10-15 17:19:04,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:04,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-10-15 17:19:04,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:04,606 INFO L225 Difference]: With dead ends: 751 [2022-10-15 17:19:04,606 INFO L226 Difference]: Without dead ends: 751 [2022-10-15 17:19:04,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:04,608 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 160 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:04,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1087 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:04,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-10-15 17:19:04,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 746. [2022-10-15 17:19:04,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 744 states have (on average 1.678763440860215) internal successors, (1249), 745 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:04,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1249 transitions. [2022-10-15 17:19:04,630 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1249 transitions. Word has length 121 [2022-10-15 17:19:04,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:04,630 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 1249 transitions. [2022-10-15 17:19:04,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:04,631 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1249 transitions. [2022-10-15 17:19:04,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-15 17:19:04,633 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:04,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:04,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:19:04,634 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:04,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:04,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2073181113, now seen corresponding path program 1 times [2022-10-15 17:19:04,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:04,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403522105] [2022-10-15 17:19:04,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:04,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:04,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:04,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:04,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403522105] [2022-10-15 17:19:04,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403522105] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:04,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:04,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:04,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876101944] [2022-10-15 17:19:04,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:04,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:04,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:04,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:04,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:04,813 INFO L87 Difference]: Start difference. First operand 746 states and 1249 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:04,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:04,844 INFO L93 Difference]: Finished difference Result 991 states and 1656 transitions. [2022-10-15 17:19:04,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:04,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-10-15 17:19:04,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:04,852 INFO L225 Difference]: With dead ends: 991 [2022-10-15 17:19:04,852 INFO L226 Difference]: Without dead ends: 991 [2022-10-15 17:19:04,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:04,853 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 161 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:04,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1091 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:04,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2022-10-15 17:19:04,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 986. [2022-10-15 17:19:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 984 states have (on average 1.6798780487804879) internal successors, (1653), 985 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:04,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1653 transitions. [2022-10-15 17:19:04,886 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1653 transitions. Word has length 124 [2022-10-15 17:19:04,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:04,887 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1653 transitions. [2022-10-15 17:19:04,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:04,887 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1653 transitions. [2022-10-15 17:19:04,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-15 17:19:04,889 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:04,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:04,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:19:04,890 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:04,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1914082347, now seen corresponding path program 1 times [2022-10-15 17:19:04,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:04,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326670680] [2022-10-15 17:19:04,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:04,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:05,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:05,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326670680] [2022-10-15 17:19:05,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326670680] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:05,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:05,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:05,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967208563] [2022-10-15 17:19:05,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:05,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:05,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:05,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:05,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:05,117 INFO L87 Difference]: Start difference. First operand 986 states and 1653 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:05,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:05,175 INFO L93 Difference]: Finished difference Result 1684 states and 2811 transitions. [2022-10-15 17:19:05,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:05,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-10-15 17:19:05,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:05,186 INFO L225 Difference]: With dead ends: 1684 [2022-10-15 17:19:05,186 INFO L226 Difference]: Without dead ends: 1684 [2022-10-15 17:19:05,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:05,188 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 153 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:05,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1069 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:05,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2022-10-15 17:19:05,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1679. [2022-10-15 17:19:05,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1677 states have (on average 1.6744186046511629) internal successors, (2808), 1678 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2808 transitions. [2022-10-15 17:19:05,260 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2808 transitions. Word has length 124 [2022-10-15 17:19:05,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:05,261 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2808 transitions. [2022-10-15 17:19:05,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:05,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2808 transitions. [2022-10-15 17:19:05,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-15 17:19:05,267 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:05,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:05,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:19:05,270 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:05,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:05,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1459354075, now seen corresponding path program 1 times [2022-10-15 17:19:05,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:05,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625370195] [2022-10-15 17:19:05,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:05,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:05,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:05,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:05,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625370195] [2022-10-15 17:19:05,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625370195] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:05,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:05,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:05,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806098712] [2022-10-15 17:19:05,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:05,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:05,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:05,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:05,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:05,445 INFO L87 Difference]: Start difference. First operand 1679 states and 2808 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:05,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:05,488 INFO L93 Difference]: Finished difference Result 2291 states and 3823 transitions. [2022-10-15 17:19:05,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:05,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-10-15 17:19:05,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:05,502 INFO L225 Difference]: With dead ends: 2291 [2022-10-15 17:19:05,503 INFO L226 Difference]: Without dead ends: 2291 [2022-10-15 17:19:05,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:05,504 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 154 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:05,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1072 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:05,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2022-10-15 17:19:05,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2286. [2022-10-15 17:19:05,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2286 states, 2284 states have (on average 1.6725043782837128) internal successors, (3820), 2285 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:05,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2286 states to 2286 states and 3820 transitions. [2022-10-15 17:19:05,574 INFO L78 Accepts]: Start accepts. Automaton has 2286 states and 3820 transitions. Word has length 127 [2022-10-15 17:19:05,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:05,574 INFO L495 AbstractCegarLoop]: Abstraction has 2286 states and 3820 transitions. [2022-10-15 17:19:05,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:05,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2286 states and 3820 transitions. [2022-10-15 17:19:05,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-15 17:19:05,577 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:05,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:05,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:19:05,578 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:05,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:05,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1832413193, now seen corresponding path program 1 times [2022-10-15 17:19:05,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:05,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270386985] [2022-10-15 17:19:05,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:05,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:05,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:05,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:05,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270386985] [2022-10-15 17:19:05,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270386985] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:05,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:05,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:05,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795511083] [2022-10-15 17:19:05,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:05,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:05,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:05,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:05,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:05,753 INFO L87 Difference]: Start difference. First operand 2286 states and 3820 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:05,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:05,807 INFO L93 Difference]: Finished difference Result 4109 states and 6802 transitions. [2022-10-15 17:19:05,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:05,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-10-15 17:19:05,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:05,832 INFO L225 Difference]: With dead ends: 4109 [2022-10-15 17:19:05,833 INFO L226 Difference]: Without dead ends: 4109 [2022-10-15 17:19:05,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:05,835 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 146 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:05,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1051 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:05,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4109 states. [2022-10-15 17:19:05,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4109 to 4104. [2022-10-15 17:19:05,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4104 states, 4102 states have (on average 1.6574841540711849) internal successors, (6799), 4103 states have internal predecessors, (6799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:06,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4104 states to 4104 states and 6799 transitions. [2022-10-15 17:19:06,004 INFO L78 Accepts]: Start accepts. Automaton has 4104 states and 6799 transitions. Word has length 127 [2022-10-15 17:19:06,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:06,005 INFO L495 AbstractCegarLoop]: Abstraction has 4104 states and 6799 transitions. [2022-10-15 17:19:06,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:06,005 INFO L276 IsEmpty]: Start isEmpty. Operand 4104 states and 6799 transitions. [2022-10-15 17:19:06,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-15 17:19:06,008 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:06,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:06,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:19:06,009 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:06,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:06,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1181394736, now seen corresponding path program 1 times [2022-10-15 17:19:06,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:06,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860749586] [2022-10-15 17:19:06,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:06,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:06,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:06,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:06,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860749586] [2022-10-15 17:19:06,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860749586] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:06,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:06,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:06,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181383507] [2022-10-15 17:19:06,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:06,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:06,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:06,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:06,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:06,199 INFO L87 Difference]: Start difference. First operand 4104 states and 6799 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:06,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:06,266 INFO L93 Difference]: Finished difference Result 5643 states and 9314 transitions. [2022-10-15 17:19:06,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:06,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-10-15 17:19:06,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:06,300 INFO L225 Difference]: With dead ends: 5643 [2022-10-15 17:19:06,300 INFO L226 Difference]: Without dead ends: 5643 [2022-10-15 17:19:06,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:06,302 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 147 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:06,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1053 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:06,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5643 states. [2022-10-15 17:19:06,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5643 to 5638. [2022-10-15 17:19:06,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5638 states, 5636 states have (on average 1.6520581973030517) internal successors, (9311), 5637 states have internal predecessors, (9311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:06,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5638 states to 5638 states and 9311 transitions. [2022-10-15 17:19:06,539 INFO L78 Accepts]: Start accepts. Automaton has 5638 states and 9311 transitions. Word has length 130 [2022-10-15 17:19:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:06,540 INFO L495 AbstractCegarLoop]: Abstraction has 5638 states and 9311 transitions. [2022-10-15 17:19:06,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:06,541 INFO L276 IsEmpty]: Start isEmpty. Operand 5638 states and 9311 transitions. [2022-10-15 17:19:06,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-15 17:19:06,544 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:06,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:06,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:19:06,547 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:06,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:06,548 INFO L85 PathProgramCache]: Analyzing trace with hash -163814164, now seen corresponding path program 1 times [2022-10-15 17:19:06,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:06,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001011064] [2022-10-15 17:19:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:06,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:06,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:06,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:06,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001011064] [2022-10-15 17:19:06,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001011064] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:06,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:06,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:19:06,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939854278] [2022-10-15 17:19:06,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:06,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:19:06,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:06,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:19:06,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:19:06,986 INFO L87 Difference]: Start difference. First operand 5638 states and 9311 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:07,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:07,608 INFO L93 Difference]: Finished difference Result 30603 states and 50633 transitions. [2022-10-15 17:19:07,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:19:07,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-10-15 17:19:07,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:07,768 INFO L225 Difference]: With dead ends: 30603 [2022-10-15 17:19:07,768 INFO L226 Difference]: Without dead ends: 30603 [2022-10-15 17:19:07,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:19:07,771 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 1780 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 3510 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:07,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 3510 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:19:07,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30603 states. [2022-10-15 17:19:08,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30603 to 10866. [2022-10-15 17:19:08,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10866 states, 10864 states have (on average 1.6456185567010309) internal successors, (17878), 10865 states have internal predecessors, (17878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:08,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10866 states to 10866 states and 17878 transitions. [2022-10-15 17:19:08,507 INFO L78 Accepts]: Start accepts. Automaton has 10866 states and 17878 transitions. Word has length 130 [2022-10-15 17:19:08,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:08,508 INFO L495 AbstractCegarLoop]: Abstraction has 10866 states and 17878 transitions. [2022-10-15 17:19:08,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:08,509 INFO L276 IsEmpty]: Start isEmpty. Operand 10866 states and 17878 transitions. [2022-10-15 17:19:08,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-15 17:19:08,511 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:08,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:08,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:19:08,512 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:08,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:08,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1417088843, now seen corresponding path program 1 times [2022-10-15 17:19:08,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:08,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91551817] [2022-10-15 17:19:08,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:08,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:08,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:08,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:08,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91551817] [2022-10-15 17:19:08,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91551817] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:08,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:08,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:08,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9268819] [2022-10-15 17:19:08,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:08,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:08,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:08,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:08,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:08,814 INFO L87 Difference]: Start difference. First operand 10866 states and 17878 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:09,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:09,119 INFO L93 Difference]: Finished difference Result 25072 states and 41465 transitions. [2022-10-15 17:19:09,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:09,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2022-10-15 17:19:09,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:09,210 INFO L225 Difference]: With dead ends: 25072 [2022-10-15 17:19:09,210 INFO L226 Difference]: Without dead ends: 25072 [2022-10-15 17:19:09,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:09,213 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 540 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1607 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 [2022-10-15 17:19:09,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1607 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:09,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25072 states. [2022-10-15 17:19:09,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25072 to 17911. [2022-10-15 17:19:09,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17911 states, 17909 states have (on average 1.646267239935228) internal successors, (29483), 17910 states have internal predecessors, (29483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:10,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17911 states to 17911 states and 29483 transitions. [2022-10-15 17:19:10,072 INFO L78 Accepts]: Start accepts. Automaton has 17911 states and 29483 transitions. Word has length 131 [2022-10-15 17:19:10,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:10,073 INFO L495 AbstractCegarLoop]: Abstraction has 17911 states and 29483 transitions. [2022-10-15 17:19:10,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand 17911 states and 29483 transitions. [2022-10-15 17:19:10,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-15 17:19:10,077 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:10,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:10,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:19:10,166 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:10,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:10,169 INFO L85 PathProgramCache]: Analyzing trace with hash -945521149, now seen corresponding path program 1 times [2022-10-15 17:19:10,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:10,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839871969] [2022-10-15 17:19:10,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:10,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:10,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:10,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:10,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839871969] [2022-10-15 17:19:10,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839871969] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:10,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:10,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:10,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449075581] [2022-10-15 17:19:10,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:10,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:10,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:10,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:10,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:10,432 INFO L87 Difference]: Start difference. First operand 17911 states and 29483 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:10,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:10,903 INFO L93 Difference]: Finished difference Result 40841 states and 67184 transitions. [2022-10-15 17:19:10,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:10,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2022-10-15 17:19:10,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:11,068 INFO L225 Difference]: With dead ends: 40841 [2022-10-15 17:19:11,069 INFO L226 Difference]: Without dead ends: 40841 [2022-10-15 17:19:11,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:11,070 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 538 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 1615 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 [2022-10-15 17:19:11,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 1615 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:11,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40841 states. [2022-10-15 17:19:12,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40841 to 29284. [2022-10-15 17:19:12,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29284 states, 29282 states have (on average 1.6401202103681443) internal successors, (48026), 29283 states have internal predecessors, (48026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:12,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29284 states to 29284 states and 48026 transitions. [2022-10-15 17:19:12,558 INFO L78 Accepts]: Start accepts. Automaton has 29284 states and 48026 transitions. Word has length 132 [2022-10-15 17:19:12,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:12,559 INFO L495 AbstractCegarLoop]: Abstraction has 29284 states and 48026 transitions. [2022-10-15 17:19:12,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:12,559 INFO L276 IsEmpty]: Start isEmpty. Operand 29284 states and 48026 transitions. [2022-10-15 17:19:12,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:19:12,562 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:12,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:12,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:19:12,563 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:12,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:12,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1002982526, now seen corresponding path program 1 times [2022-10-15 17:19:12,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:12,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747886653] [2022-10-15 17:19:12,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:12,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:12,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:12,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:12,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747886653] [2022-10-15 17:19:12,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747886653] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:12,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:12,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:12,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486388075] [2022-10-15 17:19:12,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:12,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:12,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:12,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:12,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:12,902 INFO L87 Difference]: Start difference. First operand 29284 states and 48026 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:13,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:13,667 INFO L93 Difference]: Finished difference Result 66274 states and 108617 transitions. [2022-10-15 17:19:13,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:13,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2022-10-15 17:19:13,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:13,983 INFO L225 Difference]: With dead ends: 66274 [2022-10-15 17:19:13,983 INFO L226 Difference]: Without dead ends: 66274 [2022-10-15 17:19:13,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:13,985 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 536 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:13,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1611 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:19:14,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66274 states. [2022-10-15 17:19:15,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66274 to 47633. [2022-10-15 17:19:15,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47633 states, 47631 states have (on average 1.6339148873632718) internal successors, (77825), 47632 states have internal predecessors, (77825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47633 states to 47633 states and 77825 transitions. [2022-10-15 17:19:16,075 INFO L78 Accepts]: Start accepts. Automaton has 47633 states and 77825 transitions. Word has length 133 [2022-10-15 17:19:16,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:16,076 INFO L495 AbstractCegarLoop]: Abstraction has 47633 states and 77825 transitions. [2022-10-15 17:19:16,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,076 INFO L276 IsEmpty]: Start isEmpty. Operand 47633 states and 77825 transitions. [2022-10-15 17:19:16,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-15 17:19:16,079 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:16,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:16,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:19:16,080 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:16,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:16,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1679686426, now seen corresponding path program 1 times [2022-10-15 17:19:16,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:16,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309143122] [2022-10-15 17:19:16,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:16,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:16,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:16,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:16,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309143122] [2022-10-15 17:19:16,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309143122] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:16,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:16,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:16,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681337337] [2022-10-15 17:19:16,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:16,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:16,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:16,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:16,337 INFO L87 Difference]: Start difference. First operand 47633 states and 77825 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:17,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:17,401 INFO L93 Difference]: Finished difference Result 105931 states and 172966 transitions. [2022-10-15 17:19:17,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:17,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-10-15 17:19:17,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:17,872 INFO L225 Difference]: With dead ends: 105931 [2022-10-15 17:19:17,873 INFO L226 Difference]: Without dead ends: 105931 [2022-10-15 17:19:17,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:17,874 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 534 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1613 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 [2022-10-15 17:19:17,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1613 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:18,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105931 states. [2022-10-15 17:19:20,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105931 to 76554. [2022-10-15 17:19:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76554 states, 76552 states have (on average 1.6278085484376632) internal successors, (124612), 76553 states have internal predecessors, (124612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76554 states to 76554 states and 124612 transitions. [2022-10-15 17:19:21,531 INFO L78 Accepts]: Start accepts. Automaton has 76554 states and 124612 transitions. Word has length 134 [2022-10-15 17:19:21,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:21,532 INFO L495 AbstractCegarLoop]: Abstraction has 76554 states and 124612 transitions. [2022-10-15 17:19:21,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:21,532 INFO L276 IsEmpty]: Start isEmpty. Operand 76554 states and 124612 transitions. [2022-10-15 17:19:21,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-10-15 17:19:21,534 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:21,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:21,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:19:21,535 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:21,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1349768178, now seen corresponding path program 1 times [2022-10-15 17:19:21,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:21,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709384003] [2022-10-15 17:19:21,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:21,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:22,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:22,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:22,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709384003] [2022-10-15 17:19:22,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709384003] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:22,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:22,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:19:22,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864509068] [2022-10-15 17:19:22,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:22,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:19:22,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:22,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:19:22,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:19:22,150 INFO L87 Difference]: Start difference. First operand 76554 states and 124612 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:23,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:23,354 INFO L93 Difference]: Finished difference Result 76559 states and 123990 transitions. [2022-10-15 17:19:23,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:19:23,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2022-10-15 17:19:23,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:23,617 INFO L225 Difference]: With dead ends: 76559 [2022-10-15 17:19:23,618 INFO L226 Difference]: Without dead ends: 76559 [2022-10-15 17:19:23,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:19:23,621 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 585 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:23,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 1886 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:23,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76559 states. [2022-10-15 17:19:25,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76559 to 76554. [2022-10-15 17:19:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76554 states, 76552 states have (on average 1.619644163444456) internal successors, (123987), 76553 states have internal predecessors, (123987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:26,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76554 states to 76554 states and 123987 transitions. [2022-10-15 17:19:26,372 INFO L78 Accepts]: Start accepts. Automaton has 76554 states and 123987 transitions. Word has length 136 [2022-10-15 17:19:26,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:26,373 INFO L495 AbstractCegarLoop]: Abstraction has 76554 states and 123987 transitions. [2022-10-15 17:19:26,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:26,374 INFO L276 IsEmpty]: Start isEmpty. Operand 76554 states and 123987 transitions. [2022-10-15 17:19:26,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-10-15 17:19:26,376 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:26,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:26,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:19:26,378 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:26,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:26,379 INFO L85 PathProgramCache]: Analyzing trace with hash 412618117, now seen corresponding path program 1 times [2022-10-15 17:19:26,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:26,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008296583] [2022-10-15 17:19:26,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:26,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:26,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:27,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:27,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008296583] [2022-10-15 17:19:27,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008296583] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:27,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:27,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:19:27,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796686538] [2022-10-15 17:19:27,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:27,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:19:27,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:27,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:19:27,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:19:27,004 INFO L87 Difference]: Start difference. First operand 76554 states and 123987 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:28,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:28,405 INFO L93 Difference]: Finished difference Result 147485 states and 237307 transitions. [2022-10-15 17:19:28,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:19:28,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2022-10-15 17:19:28,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:28,765 INFO L225 Difference]: With dead ends: 147485 [2022-10-15 17:19:28,765 INFO L226 Difference]: Without dead ends: 147485 [2022-10-15 17:19:28,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:19:28,767 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 576 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:28,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1897 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:28,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147485 states. [2022-10-15 17:19:31,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147485 to 147480. [2022-10-15 17:19:31,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147480 states, 147478 states have (on average 1.6090806764398757) internal successors, (237304), 147479 states have internal predecessors, (237304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147480 states to 147480 states and 237304 transitions. [2022-10-15 17:19:32,176 INFO L78 Accepts]: Start accepts. Automaton has 147480 states and 237304 transitions. Word has length 139 [2022-10-15 17:19:32,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:32,179 INFO L495 AbstractCegarLoop]: Abstraction has 147480 states and 237304 transitions. [2022-10-15 17:19:32,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:32,180 INFO L276 IsEmpty]: Start isEmpty. Operand 147480 states and 237304 transitions. [2022-10-15 17:19:32,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-10-15 17:19:32,182 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:32,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:32,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:19:32,183 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:32,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:32,184 INFO L85 PathProgramCache]: Analyzing trace with hash -525085605, now seen corresponding path program 1 times [2022-10-15 17:19:32,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:32,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18494519] [2022-10-15 17:19:32,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:32,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:33,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:33,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:33,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18494519] [2022-10-15 17:19:33,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18494519] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:33,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:33,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:19:33,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566437401] [2022-10-15 17:19:33,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:33,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:19:33,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:33,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:19:33,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:33,676 INFO L87 Difference]: Start difference. First operand 147480 states and 237304 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:35,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:35,545 INFO L93 Difference]: Finished difference Result 285919 states and 453827 transitions. [2022-10-15 17:19:35,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:19:35,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-10-15 17:19:35,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:36,230 INFO L225 Difference]: With dead ends: 285919 [2022-10-15 17:19:36,231 INFO L226 Difference]: Without dead ends: 285919 [2022-10-15 17:19:36,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:19:36,235 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 502 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:36,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 2092 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:36,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285919 states. [2022-10-15 17:19:40,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285919 to 153288. [2022-10-15 17:19:40,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153288 states, 153286 states have (on average 1.585826494265621) internal successors, (243085), 153287 states have internal predecessors, (243085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)