/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:32:31,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:32:31,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:32:31,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 17:32:31,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:32:31,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:32:31,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:32:31,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:32:31,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:32:31,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:32:31,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:32:31,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:32:31,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:32:31,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:32:31,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:32:31,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:32:31,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:32:31,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:32:31,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:32:31,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:32:31,972 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 17:32:32,005 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:32:32,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:32:32,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:32:32,006 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:32:32,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:32:32,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:32:32,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:32:32,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:32:32,009 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:32:32,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:32:32,010 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:32:32,010 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:32:32,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:32:32,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:32:32,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:32:32,011 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:32:32,011 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:32:32,011 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:32:32,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:32:32,011 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:32:32,012 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:32:32,012 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:32:32,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:32:32,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:32:32,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:32:32,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:32:32,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:32:32,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:32:32,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:32:32,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:32:32,014 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:32:32,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:32:32,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:32:32,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:32:32,452 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:32:32,453 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:32:32,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:32:32,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60696f111/fb6124a7b678485c9b4f2419f44cb1c2/FLAG8bfeb895d [2022-10-15 17:32:33,609 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:32:33,610 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:32:33,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60696f111/fb6124a7b678485c9b4f2419f44cb1c2/FLAG8bfeb895d [2022-10-15 17:32:33,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60696f111/fb6124a7b678485c9b4f2419f44cb1c2 [2022-10-15 17:32:33,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:32:33,690 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:32:33,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:32:33,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:32:33,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:32:33,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:32:33" (1/1) ... [2022-10-15 17:32:33,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4842508b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:33, skipping insertion in model container [2022-10-15 17:32:33,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:32:33" (1/1) ... [2022-10-15 17:32:33,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:32:33,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:32:34,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[21939,21952] [2022-10-15 17:32:34,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:32:34,734 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:32:34,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[21939,21952] [2022-10-15 17:32:34,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:32:34,973 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:32:34,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34 WrapperNode [2022-10-15 17:32:34,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:32:34,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:32:34,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:32:34,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:32:34,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34" (1/1) ... [2022-10-15 17:32:35,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34" (1/1) ... [2022-10-15 17:32:35,163 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2781 [2022-10-15 17:32:35,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:32:35,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:32:35,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:32:35,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:32:35,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34" (1/1) ... [2022-10-15 17:32:35,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34" (1/1) ... [2022-10-15 17:32:35,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34" (1/1) ... [2022-10-15 17:32:35,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34" (1/1) ... [2022-10-15 17:32:35,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34" (1/1) ... [2022-10-15 17:32:35,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34" (1/1) ... [2022-10-15 17:32:35,262 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34" (1/1) ... [2022-10-15 17:32:35,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34" (1/1) ... [2022-10-15 17:32:35,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:32:35,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:32:35,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:32:35,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:32:35,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34" (1/1) ... [2022-10-15 17:32:35,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:32:35,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:32:35,340 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 17:32:35,355 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 17:32:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:32:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:32:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:32:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:32:35,638 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:32:35,641 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:32:37,867 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:32:37,886 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:32:37,886 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:32:37,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:32:37 BoogieIcfgContainer [2022-10-15 17:32:37,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:32:37,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:32:37,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:32:37,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:32:37,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:32:33" (1/3) ... [2022-10-15 17:32:37,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d20e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:32:37, skipping insertion in model container [2022-10-15 17:32:37,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:32:34" (2/3) ... [2022-10-15 17:32:37,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d20e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:32:37, skipping insertion in model container [2022-10-15 17:32:37,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:32:37" (3/3) ... [2022-10-15 17:32:37,902 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:32:37,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:32:37,926 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:32:38,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:32:38,026 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;@74c6a367, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:32:38,027 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:32:38,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 746 states, 743 states have (on average 1.838492597577389) internal successors, (1366), 745 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 17:32:38,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-15 17:32:38,083 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:38,084 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 17:32:38,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:38,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:38,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1998596431, now seen corresponding path program 1 times [2022-10-15 17:32:38,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:38,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069042411] [2022-10-15 17:32:38,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:38,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:39,050 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 17:32:39,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:39,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069042411] [2022-10-15 17:32:39,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069042411] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:39,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:39,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:32:39,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211383325] [2022-10-15 17:32:39,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:39,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:32:39,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:39,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:32:39,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:32:39,103 INFO L87 Difference]: Start difference. First operand has 746 states, 743 states have (on average 1.838492597577389) internal successors, (1366), 745 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 62.0) 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 17:32:39,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:39,263 INFO L93 Difference]: Finished difference Result 745 states and 1364 transitions. [2022-10-15 17:32:39,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:32:39,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 62.0) 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 17:32:39,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:39,295 INFO L225 Difference]: With dead ends: 745 [2022-10-15 17:32:39,296 INFO L226 Difference]: Without dead ends: 742 [2022-10-15 17:32:39,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:32:39,303 INFO L413 NwaCegarLoop]: 1363 mSDtfsCounter, 1241 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:32:39,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 1363 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:32:39,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-10-15 17:32:39,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2022-10-15 17:32:39,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 741 states have (on average 1.7557354925775979) internal successors, (1301), 741 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states 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 17:32:39,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1301 transitions. [2022-10-15 17:32:39,427 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1301 transitions. Word has length 124 [2022-10-15 17:32:39,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:39,429 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1301 transitions. [2022-10-15 17:32:39,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 62.0) 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 17:32:39,430 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1301 transitions. [2022-10-15 17:32:39,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-10-15 17:32:39,439 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:39,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:39,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:32:39,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:39,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:39,442 INFO L85 PathProgramCache]: Analyzing trace with hash 571162462, now seen corresponding path program 1 times [2022-10-15 17:32:39,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:39,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704216555] [2022-10-15 17:32:39,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:39,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:40,102 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 17:32:40,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:40,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704216555] [2022-10-15 17:32:40,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704216555] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:40,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:40,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:32:40,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664083803] [2022-10-15 17:32:40,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:40,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:32:40,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:40,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:32:40,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:32:40,113 INFO L87 Difference]: Start difference. First operand 742 states and 1301 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states 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 17:32:40,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:40,220 INFO L93 Difference]: Finished difference Result 928 states and 1608 transitions. [2022-10-15 17:32:40,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:32:40,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2022-10-15 17:32:40,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:40,234 INFO L225 Difference]: With dead ends: 928 [2022-10-15 17:32:40,235 INFO L226 Difference]: Without dead ends: 928 [2022-10-15 17:32:40,241 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 17:32:40,244 INFO L413 NwaCegarLoop]: 1295 mSDtfsCounter, 305 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:32:40,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 2533 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:32:40,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-10-15 17:32:40,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 925. [2022-10-15 17:32:40,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 924 states have (on average 1.7380952380952381) internal successors, (1606), 924 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states 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 17:32:40,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1606 transitions. [2022-10-15 17:32:40,290 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1606 transitions. Word has length 203 [2022-10-15 17:32:40,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:40,291 INFO L495 AbstractCegarLoop]: Abstraction has 925 states and 1606 transitions. [2022-10-15 17:32:40,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states 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 17:32:40,292 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1606 transitions. [2022-10-15 17:32:40,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-10-15 17:32:40,297 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:40,297 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:40,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:32:40,298 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:40,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:40,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1880612795, now seen corresponding path program 1 times [2022-10-15 17:32:40,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:40,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956950178] [2022-10-15 17:32:40,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:40,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:40,636 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 17:32:40,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:40,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956950178] [2022-10-15 17:32:40,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956950178] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:40,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:40,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:32:40,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603911605] [2022-10-15 17:32:40,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:40,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:32:40,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:40,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:32:40,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:32:40,651 INFO L87 Difference]: Start difference. First operand 925 states and 1606 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states 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 17:32:40,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:40,729 INFO L93 Difference]: Finished difference Result 1285 states and 2203 transitions. [2022-10-15 17:32:40,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:32:40,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2022-10-15 17:32:40,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:40,742 INFO L225 Difference]: With dead ends: 1285 [2022-10-15 17:32:40,743 INFO L226 Difference]: Without dead ends: 1285 [2022-10-15 17:32:40,746 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 17:32:40,754 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 306 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:32:40,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 2545 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:32:40,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2022-10-15 17:32:40,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1281. [2022-10-15 17:32:40,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1280 states have (on average 1.71875) internal successors, (2200), 1280 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states 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 17:32:40,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 2200 transitions. [2022-10-15 17:32:40,806 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 2200 transitions. Word has length 207 [2022-10-15 17:32:40,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:40,806 INFO L495 AbstractCegarLoop]: Abstraction has 1281 states and 2200 transitions. [2022-10-15 17:32:40,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states 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 17:32:40,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 2200 transitions. [2022-10-15 17:32:40,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-10-15 17:32:40,813 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:40,813 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:40,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:32:40,814 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:40,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:40,815 INFO L85 PathProgramCache]: Analyzing trace with hash -828629634, now seen corresponding path program 1 times [2022-10-15 17:32:40,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:40,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431083275] [2022-10-15 17:32:40,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:40,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:41,204 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 17:32:41,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:41,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431083275] [2022-10-15 17:32:41,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431083275] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:41,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:41,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:32:41,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634580456] [2022-10-15 17:32:41,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:41,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:32:41,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:41,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:32:41,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:32:41,216 INFO L87 Difference]: Start difference. First operand 1281 states and 2200 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states 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 17:32:41,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:41,285 INFO L93 Difference]: Finished difference Result 1975 states and 3345 transitions. [2022-10-15 17:32:41,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:32:41,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2022-10-15 17:32:41,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:41,301 INFO L225 Difference]: With dead ends: 1975 [2022-10-15 17:32:41,301 INFO L226 Difference]: Without dead ends: 1975 [2022-10-15 17:32:41,301 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 17:32:41,312 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 299 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:32:41,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 2546 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:32:41,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2022-10-15 17:32:41,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1969. [2022-10-15 17:32:41,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.6971544715447155) internal successors, (3340), 1968 states have internal predecessors, (3340), 0 states have call successors, (0), 0 states 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 17:32:41,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 3340 transitions. [2022-10-15 17:32:41,386 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 3340 transitions. Word has length 211 [2022-10-15 17:32:41,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:41,389 INFO L495 AbstractCegarLoop]: Abstraction has 1969 states and 3340 transitions. [2022-10-15 17:32:41,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states 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 17:32:41,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 3340 transitions. [2022-10-15 17:32:41,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-10-15 17:32:41,396 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:41,396 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:41,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:32:41,397 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:41,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:41,398 INFO L85 PathProgramCache]: Analyzing trace with hash -295065701, now seen corresponding path program 1 times [2022-10-15 17:32:41,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:41,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132386569] [2022-10-15 17:32:41,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:41,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:41,807 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 17:32:41,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:41,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132386569] [2022-10-15 17:32:41,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132386569] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:41,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:41,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:32:41,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589225394] [2022-10-15 17:32:41,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:41,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:32:41,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:41,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:32:41,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:32:41,812 INFO L87 Difference]: Start difference. First operand 1969 states and 3340 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states 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 17:32:41,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:41,880 INFO L93 Difference]: Finished difference Result 3307 states and 5533 transitions. [2022-10-15 17:32:41,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:32:41,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2022-10-15 17:32:41,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:41,900 INFO L225 Difference]: With dead ends: 3307 [2022-10-15 17:32:41,901 INFO L226 Difference]: Without dead ends: 3307 [2022-10-15 17:32:41,901 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 17:32:41,903 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 292 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:32:41,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 2547 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:32:41,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2022-10-15 17:32:41,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 3297. [2022-10-15 17:32:42,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3297 states, 3296 states have (on average 1.6759708737864079) internal successors, (5524), 3296 states have internal predecessors, (5524), 0 states have call successors, (0), 0 states 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 17:32:42,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 5524 transitions. [2022-10-15 17:32:42,017 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 5524 transitions. Word has length 215 [2022-10-15 17:32:42,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:42,017 INFO L495 AbstractCegarLoop]: Abstraction has 3297 states and 5524 transitions. [2022-10-15 17:32:42,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states 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 17:32:42,018 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 5524 transitions. [2022-10-15 17:32:42,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-10-15 17:32:42,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:42,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:42,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:32:42,026 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:42,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:42,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1180849054, now seen corresponding path program 1 times [2022-10-15 17:32:42,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:42,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527441083] [2022-10-15 17:32:42,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:42,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:42,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:32:42,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:42,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527441083] [2022-10-15 17:32:42,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527441083] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:42,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:42,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:32:42,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017480216] [2022-10-15 17:32:42,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:42,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:32:42,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:42,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:32:42,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:32:42,509 INFO L87 Difference]: Start difference. First operand 3297 states and 5524 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states 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 17:32:42,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:42,612 INFO L93 Difference]: Finished difference Result 5875 states and 9717 transitions. [2022-10-15 17:32:42,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:32:42,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2022-10-15 17:32:42,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:42,656 INFO L225 Difference]: With dead ends: 5875 [2022-10-15 17:32:42,657 INFO L226 Difference]: Without dead ends: 5875 [2022-10-15 17:32:42,657 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 17:32:42,660 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 285 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:32:42,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 2548 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:32:42,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5875 states. [2022-10-15 17:32:42,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5875 to 5857. [2022-10-15 17:32:42,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5857 states, 5856 states have (on average 1.6564207650273224) internal successors, (9700), 5856 states have internal predecessors, (9700), 0 states have call successors, (0), 0 states 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 17:32:42,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5857 states to 5857 states and 9700 transitions. [2022-10-15 17:32:42,915 INFO L78 Accepts]: Start accepts. Automaton has 5857 states and 9700 transitions. Word has length 219 [2022-10-15 17:32:42,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:42,916 INFO L495 AbstractCegarLoop]: Abstraction has 5857 states and 9700 transitions. [2022-10-15 17:32:42,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states 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 17:32:42,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5857 states and 9700 transitions. [2022-10-15 17:32:42,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-10-15 17:32:42,923 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:42,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:42,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:32:42,924 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:42,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:42,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1103947909, now seen corresponding path program 1 times [2022-10-15 17:32:42,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:42,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382006379] [2022-10-15 17:32:42,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:42,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:43,459 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 17:32:43,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:43,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382006379] [2022-10-15 17:32:43,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382006379] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:43,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:43,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:32:43,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223891242] [2022-10-15 17:32:43,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:43,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:32:43,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:43,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:32:43,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:32:43,464 INFO L87 Difference]: Start difference. First operand 5857 states and 9700 transitions. Second operand has 7 states, 7 states have (on average 31.857142857142858) internal successors, (223), 7 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 17:32:44,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:44,421 INFO L93 Difference]: Finished difference Result 30547 states and 50565 transitions. [2022-10-15 17:32:44,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 17:32:44,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.857142857142858) internal successors, (223), 7 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-10-15 17:32:44,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:44,583 INFO L225 Difference]: With dead ends: 30547 [2022-10-15 17:32:44,583 INFO L226 Difference]: Without dead ends: 30547 [2022-10-15 17:32:44,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-15 17:32:44,585 INFO L413 NwaCegarLoop]: 1299 mSDtfsCounter, 3622 mSDsluCounter, 11817 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3622 SdHoareTripleChecker+Valid, 13116 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:32:44,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3622 Valid, 13116 Invalid, 330 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:32:44,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30547 states. [2022-10-15 17:32:45,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30547 to 10974. [2022-10-15 17:32:45,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10974 states, 10973 states have (on average 1.6498678574683314) internal successors, (18104), 10973 states have internal predecessors, (18104), 0 states have call successors, (0), 0 states 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 17:32:45,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10974 states to 10974 states and 18104 transitions. [2022-10-15 17:32:45,268 INFO L78 Accepts]: Start accepts. Automaton has 10974 states and 18104 transitions. Word has length 223 [2022-10-15 17:32:45,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:45,269 INFO L495 AbstractCegarLoop]: Abstraction has 10974 states and 18104 transitions. [2022-10-15 17:32:45,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.857142857142858) internal successors, (223), 7 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 17:32:45,270 INFO L276 IsEmpty]: Start isEmpty. Operand 10974 states and 18104 transitions. [2022-10-15 17:32:45,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-10-15 17:32:45,282 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:45,282 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:45,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:32:45,283 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:45,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:45,284 INFO L85 PathProgramCache]: Analyzing trace with hash 65733462, now seen corresponding path program 1 times [2022-10-15 17:32:45,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:45,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013990247] [2022-10-15 17:32:45,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:45,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:45,710 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 17:32:45,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:45,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013990247] [2022-10-15 17:32:45,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013990247] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:45,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:45,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:32:45,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947211505] [2022-10-15 17:32:45,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:45,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:32:45,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:45,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:32:45,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:32:45,714 INFO L87 Difference]: Start difference. First operand 10974 states and 18104 transitions. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states 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 17:32:45,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:45,993 INFO L93 Difference]: Finished difference Result 21752 states and 35994 transitions. [2022-10-15 17:32:45,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:32:45,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 224 [2022-10-15 17:32:45,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:46,053 INFO L225 Difference]: With dead ends: 21752 [2022-10-15 17:32:46,053 INFO L226 Difference]: Without dead ends: 21752 [2022-10-15 17:32:46,054 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 17:32:46,055 INFO L413 NwaCegarLoop]: 1294 mSDtfsCounter, 982 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 4165 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 17:32:46,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 4165 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:32:46,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21752 states. [2022-10-15 17:32:46,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21752 to 16330. [2022-10-15 17:32:46,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16330 states, 16329 states have (on average 1.6507440749586626) internal successors, (26955), 16329 states have internal predecessors, (26955), 0 states have call successors, (0), 0 states 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 17:32:46,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16330 states to 16330 states and 26955 transitions. [2022-10-15 17:32:46,709 INFO L78 Accepts]: Start accepts. Automaton has 16330 states and 26955 transitions. Word has length 224 [2022-10-15 17:32:46,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:46,709 INFO L495 AbstractCegarLoop]: Abstraction has 16330 states and 26955 transitions. [2022-10-15 17:32:46,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states 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 17:32:46,710 INFO L276 IsEmpty]: Start isEmpty. Operand 16330 states and 26955 transitions. [2022-10-15 17:32:46,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-15 17:32:46,723 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:46,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:46,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:32:46,724 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:46,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:46,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1970675618, now seen corresponding path program 1 times [2022-10-15 17:32:46,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:46,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393487264] [2022-10-15 17:32:46,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:46,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:32:47,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:47,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393487264] [2022-10-15 17:32:47,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393487264] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:47,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:47,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:32:47,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276510048] [2022-10-15 17:32:47,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:47,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:32:47,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:47,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:32:47,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:32:47,167 INFO L87 Difference]: Start difference. First operand 16330 states and 26955 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:32:47,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:47,431 INFO L93 Difference]: Finished difference Result 32368 states and 53471 transitions. [2022-10-15 17:32:47,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:32:47,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2022-10-15 17:32:47,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:47,535 INFO L225 Difference]: With dead ends: 32368 [2022-10-15 17:32:47,536 INFO L226 Difference]: Without dead ends: 32368 [2022-10-15 17:32:47,536 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 17:32:47,537 INFO L413 NwaCegarLoop]: 1291 mSDtfsCounter, 980 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 3969 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:32:47,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 3969 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:32:47,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32368 states. [2022-10-15 17:32:48,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32368 to 24301. [2022-10-15 17:32:48,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24301 states, 24300 states have (on average 1.6491358024691358) internal successors, (40074), 24300 states have internal predecessors, (40074), 0 states have call successors, (0), 0 states 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 17:32:48,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24301 states to 24301 states and 40074 transitions. [2022-10-15 17:32:48,278 INFO L78 Accepts]: Start accepts. Automaton has 24301 states and 40074 transitions. Word has length 225 [2022-10-15 17:32:48,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:48,279 INFO L495 AbstractCegarLoop]: Abstraction has 24301 states and 40074 transitions. [2022-10-15 17:32:48,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:32:48,279 INFO L276 IsEmpty]: Start isEmpty. Operand 24301 states and 40074 transitions. [2022-10-15 17:32:48,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-10-15 17:32:48,296 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:48,296 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:48,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:32:48,297 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:48,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:48,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1272079426, now seen corresponding path program 1 times [2022-10-15 17:32:48,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:48,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588051223] [2022-10-15 17:32:48,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:32:48,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:48,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588051223] [2022-10-15 17:32:48,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588051223] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:48,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:48,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:32:48,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671780939] [2022-10-15 17:32:48,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:48,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:32:48,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:48,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:32:48,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:32:48,676 INFO L87 Difference]: Start difference. First operand 24301 states and 40074 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 17:32:48,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:48,999 INFO L93 Difference]: Finished difference Result 37473 states and 61792 transitions. [2022-10-15 17:32:49,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:32:49,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2022-10-15 17:32:49,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:49,097 INFO L225 Difference]: With dead ends: 37473 [2022-10-15 17:32:49,098 INFO L226 Difference]: Without dead ends: 37473 [2022-10-15 17:32:49,098 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 17:32:49,099 INFO L413 NwaCegarLoop]: 1568 mSDtfsCounter, 312 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 2823 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 17:32:49,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 2823 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:32:49,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37473 states. [2022-10-15 17:32:49,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37473 to 37471. [2022-10-15 17:32:49,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37471 states, 37470 states have (on average 1.6490792634107285) internal successors, (61791), 37470 states have internal predecessors, (61791), 0 states have call successors, (0), 0 states 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 17:32:50,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37471 states to 37471 states and 61791 transitions. [2022-10-15 17:32:50,109 INFO L78 Accepts]: Start accepts. Automaton has 37471 states and 61791 transitions. Word has length 226 [2022-10-15 17:32:50,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:50,113 INFO L495 AbstractCegarLoop]: Abstraction has 37471 states and 61791 transitions. [2022-10-15 17:32:50,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 17:32:50,114 INFO L276 IsEmpty]: Start isEmpty. Operand 37471 states and 61791 transitions. [2022-10-15 17:32:50,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-10-15 17:32:50,133 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:50,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:50,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:32:50,134 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:50,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:50,135 INFO L85 PathProgramCache]: Analyzing trace with hash -360564415, now seen corresponding path program 1 times [2022-10-15 17:32:50,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:50,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237177952] [2022-10-15 17:32:50,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:50,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:50,513 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 17:32:50,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:50,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237177952] [2022-10-15 17:32:50,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237177952] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:50,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:50,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:32:50,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729442738] [2022-10-15 17:32:50,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:50,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:32:50,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:50,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:32:50,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:32:50,517 INFO L87 Difference]: Start difference. First operand 37471 states and 61791 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 17:32:50,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:50,863 INFO L93 Difference]: Finished difference Result 57428 states and 94549 transitions. [2022-10-15 17:32:50,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:32:50,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2022-10-15 17:32:50,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:51,051 INFO L225 Difference]: With dead ends: 57428 [2022-10-15 17:32:51,052 INFO L226 Difference]: Without dead ends: 57428 [2022-10-15 17:32:51,052 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 17:32:51,053 INFO L413 NwaCegarLoop]: 1541 mSDtfsCounter, 305 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2797 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 17:32:51,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 2797 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:32:51,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57428 states. [2022-10-15 17:32:52,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57428 to 57426. [2022-10-15 17:32:52,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57426 states, 57425 states have (on average 1.6464606007836309) internal successors, (94548), 57425 states have internal predecessors, (94548), 0 states have call successors, (0), 0 states 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 17:32:52,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57426 states to 57426 states and 94548 transitions. [2022-10-15 17:32:52,685 INFO L78 Accepts]: Start accepts. Automaton has 57426 states and 94548 transitions. Word has length 226 [2022-10-15 17:32:52,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:52,685 INFO L495 AbstractCegarLoop]: Abstraction has 57426 states and 94548 transitions. [2022-10-15 17:32:52,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 17:32:52,686 INFO L276 IsEmpty]: Start isEmpty. Operand 57426 states and 94548 transitions. [2022-10-15 17:32:52,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-10-15 17:32:52,691 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:52,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:52,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:32:52,692 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:52,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:52,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1104908596, now seen corresponding path program 1 times [2022-10-15 17:32:52,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:52,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688402285] [2022-10-15 17:32:52,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:52,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:52,889 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 17:32:52,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:52,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688402285] [2022-10-15 17:32:52,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688402285] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:52,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:52,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:32:52,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172439482] [2022-10-15 17:32:52,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:52,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:32:52,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:52,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:32:52,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:32:52,892 INFO L87 Difference]: Start difference. First operand 57426 states and 94548 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 17:32:53,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:53,497 INFO L93 Difference]: Finished difference Result 80651 states and 132664 transitions. [2022-10-15 17:32:53,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:32:53,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2022-10-15 17:32:53,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:53,689 INFO L225 Difference]: With dead ends: 80651 [2022-10-15 17:32:53,690 INFO L226 Difference]: Without dead ends: 80651 [2022-10-15 17:32:53,690 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 17:32:53,691 INFO L413 NwaCegarLoop]: 1507 mSDtfsCounter, 298 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2764 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 17:32:53,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 2764 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:32:53,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80651 states. [2022-10-15 17:32:55,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80651 to 80649. [2022-10-15 17:32:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80649 states, 80648 states have (on average 1.6449632972919352) internal successors, (132663), 80648 states have internal predecessors, (132663), 0 states have call successors, (0), 0 states 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 17:32:55,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80649 states to 80649 states and 132663 transitions. [2022-10-15 17:32:55,752 INFO L78 Accepts]: Start accepts. Automaton has 80649 states and 132663 transitions. Word has length 226 [2022-10-15 17:32:55,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:55,753 INFO L495 AbstractCegarLoop]: Abstraction has 80649 states and 132663 transitions. [2022-10-15 17:32:55,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 17:32:55,768 INFO L276 IsEmpty]: Start isEmpty. Operand 80649 states and 132663 transitions. [2022-10-15 17:32:55,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-10-15 17:32:55,782 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:55,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:55,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:32:55,784 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:55,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:55,785 INFO L85 PathProgramCache]: Analyzing trace with hash -922539701, now seen corresponding path program 1 times [2022-10-15 17:32:55,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:55,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985594962] [2022-10-15 17:32:55,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:55,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:56,023 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 17:32:56,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:56,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985594962] [2022-10-15 17:32:56,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985594962] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:56,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:56,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:32:56,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660317482] [2022-10-15 17:32:56,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:56,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:32:56,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:56,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:32:56,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:32:56,027 INFO L87 Difference]: Start difference. First operand 80649 states and 132663 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 17:32:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:32:56,842 INFO L93 Difference]: Finished difference Result 112574 states and 185019 transitions. [2022-10-15 17:32:56,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:32:56,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2022-10-15 17:32:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:32:57,116 INFO L225 Difference]: With dead ends: 112574 [2022-10-15 17:32:57,116 INFO L226 Difference]: Without dead ends: 112574 [2022-10-15 17:32:57,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:32:57,118 INFO L413 NwaCegarLoop]: 1472 mSDtfsCounter, 291 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2730 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 17:32:57,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 2730 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:32:57,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112574 states. [2022-10-15 17:32:58,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112574 to 112572. [2022-10-15 17:32:58,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112572 states, 112571 states have (on average 1.643567170941006) internal successors, (185018), 112571 states have internal predecessors, (185018), 0 states have call successors, (0), 0 states 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 17:32:59,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112572 states to 112572 states and 185018 transitions. [2022-10-15 17:32:59,270 INFO L78 Accepts]: Start accepts. Automaton has 112572 states and 185018 transitions. Word has length 226 [2022-10-15 17:32:59,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:32:59,270 INFO L495 AbstractCegarLoop]: Abstraction has 112572 states and 185018 transitions. [2022-10-15 17:32:59,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 17:32:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 112572 states and 185018 transitions. [2022-10-15 17:32:59,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-10-15 17:32:59,273 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:32:59,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:59,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:32:59,274 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:32:59,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:32:59,275 INFO L85 PathProgramCache]: Analyzing trace with hash 898898333, now seen corresponding path program 1 times [2022-10-15 17:32:59,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:32:59,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634651883] [2022-10-15 17:32:59,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:32:59,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:32:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:32:59,585 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 17:32:59,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:32:59,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634651883] [2022-10-15 17:32:59,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634651883] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:32:59,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:32:59,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:32:59,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061086946] [2022-10-15 17:32:59,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:32:59,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:32:59,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:32:59,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:32:59,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:32:59,591 INFO L87 Difference]: Start difference. First operand 112572 states and 185018 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 17:33:01,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:01,047 INFO L93 Difference]: Finished difference Result 256802 states and 422395 transitions. [2022-10-15 17:33:01,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:33:01,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2022-10-15 17:33:01,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:01,580 INFO L225 Difference]: With dead ends: 256802 [2022-10-15 17:33:01,581 INFO L226 Difference]: Without dead ends: 256802 [2022-10-15 17:33:01,581 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 17:33:01,581 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 978 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:01,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 3840 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:33:01,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256802 states. [2022-10-15 17:33:04,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256802 to 184394. [2022-10-15 17:33:04,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184394 states, 184393 states have (on average 1.6415319453558432) internal successors, (302687), 184393 states have internal predecessors, (302687), 0 states have call successors, (0), 0 states 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 17:33:05,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184394 states to 184394 states and 302687 transitions. [2022-10-15 17:33:05,774 INFO L78 Accepts]: Start accepts. Automaton has 184394 states and 302687 transitions. Word has length 226 [2022-10-15 17:33:05,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:05,775 INFO L495 AbstractCegarLoop]: Abstraction has 184394 states and 302687 transitions. [2022-10-15 17:33:05,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 17:33:05,786 INFO L276 IsEmpty]: Start isEmpty. Operand 184394 states and 302687 transitions. [2022-10-15 17:33:05,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-10-15 17:33:05,791 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:05,792 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:05,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:33:05,792 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:05,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:05,795 INFO L85 PathProgramCache]: Analyzing trace with hash 151241642, now seen corresponding path program 1 times [2022-10-15 17:33:05,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:05,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146866975] [2022-10-15 17:33:05,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:05,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:06,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:33:06,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:06,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146866975] [2022-10-15 17:33:06,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146866975] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:06,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:06,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:33:06,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011162792] [2022-10-15 17:33:06,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:06,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:33:06,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:06,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:33:06,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:33:06,083 INFO L87 Difference]: Start difference. First operand 184394 states and 302687 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 17:33:07,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:07,367 INFO L93 Difference]: Finished difference Result 256219 states and 420173 transitions. [2022-10-15 17:33:07,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:33:07,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2022-10-15 17:33:07,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:07,804 INFO L225 Difference]: With dead ends: 256219 [2022-10-15 17:33:07,804 INFO L226 Difference]: Without dead ends: 256219 [2022-10-15 17:33:07,804 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 17:33:07,805 INFO L413 NwaCegarLoop]: 1437 mSDtfsCounter, 284 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 2696 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 17:33:07,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 2696 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:33:07,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256219 states. [2022-10-15 17:33:11,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256219 to 256217. [2022-10-15 17:33:12,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256217 states, 256216 states have (on average 1.6399131982389858) internal successors, (420172), 256216 states have internal predecessors, (420172), 0 states have call successors, (0), 0 states 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 17:33:12,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256217 states to 256217 states and 420172 transitions. [2022-10-15 17:33:12,973 INFO L78 Accepts]: Start accepts. Automaton has 256217 states and 420172 transitions. Word has length 226 [2022-10-15 17:33:12,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:33:12,976 INFO L495 AbstractCegarLoop]: Abstraction has 256217 states and 420172 transitions. [2022-10-15 17:33:12,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 17:33:12,976 INFO L276 IsEmpty]: Start isEmpty. Operand 256217 states and 420172 transitions. [2022-10-15 17:33:12,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-10-15 17:33:12,978 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:33:12,979 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:12,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:33:12,979 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:33:12,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:33:12,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2038098889, now seen corresponding path program 1 times [2022-10-15 17:33:12,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:33:12,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578785987] [2022-10-15 17:33:12,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:33:12,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:33:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:33:13,494 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 17:33:13,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:33:13,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578785987] [2022-10-15 17:33:13,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578785987] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:33:13,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:33:13,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:33:13,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708233989] [2022-10-15 17:33:13,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:33:13,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:33:13,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:33:13,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:33:13,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:33:13,499 INFO L87 Difference]: Start difference. First operand 256217 states and 420172 transitions. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 17:33:16,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:33:16,914 INFO L93 Difference]: Finished difference Result 583231 states and 957321 transitions. [2022-10-15 17:33:16,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:33:16,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-10-15 17:33:16,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:33:18,227 INFO L225 Difference]: With dead ends: 583231 [2022-10-15 17:33:18,227 INFO L226 Difference]: Without dead ends: 583231 [2022-10-15 17:33:18,228 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 17:33:18,228 INFO L413 NwaCegarLoop]: 1290 mSDtfsCounter, 976 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 4167 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:33:18,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 4167 Invalid, 52 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:33:18,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583231 states.