/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:19:07,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:19:07,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:19:07,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:19:07,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:19:07,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:19:07,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:19:07,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:19:07,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:19:07,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:19:07,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:19:07,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:19:07,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:19:07,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:19:07,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:19:07,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:19:07,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:19:07,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:19:07,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:19:07,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:19:07,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:19:07,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:19:07,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:19:07,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:19:07,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:19:07,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:19:07,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:19:07,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:19:07,925 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 17:19:07,991 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:19:07,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:19:07,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:19:07,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:19:07,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:19:07,995 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:19:07,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:19:08,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:19:08,000 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:19:08,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:19:08,002 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:19:08,002 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:19:08,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:19:08,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:19:08,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:19:08,003 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:19:08,003 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:19:08,003 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:19:08,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:19:08,004 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:19:08,004 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:19:08,004 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:19:08,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:19:08,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:19:08,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:19:08,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:19:08,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:19:08,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:19:08,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:19:08,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:19:08,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:19:08,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:19:08,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:19:08,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:19:08,533 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:19:08,534 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:19:08,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2022-10-15 17:19:08,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7a1fce1/f95d75885faa4c20a6ac15943f9acc3d/FLAGfe8c8552a [2022-10-15 17:19:09,508 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:19:09,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2022-10-15 17:19:09,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7a1fce1/f95d75885faa4c20a6ac15943f9acc3d/FLAGfe8c8552a [2022-10-15 17:19:09,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7a1fce1/f95d75885faa4c20a6ac15943f9acc3d [2022-10-15 17:19:09,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:19:09,807 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:19:09,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:19:09,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:19:09,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:19:09,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:19:09" (1/1) ... [2022-10-15 17:19:09,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5585dc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:09, skipping insertion in model container [2022-10-15 17:19:09,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:19:09" (1/1) ... [2022-10-15 17:19:09,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:19:09,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:19:10,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c[28307,28320] [2022-10-15 17:19:10,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:19:10,466 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:19:10,594 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c[28307,28320] [2022-10-15 17:19:10,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:19:10,622 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:19:10,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10 WrapperNode [2022-10-15 17:19:10,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:19:10,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:19:10,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:19:10,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:19:10,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10" (1/1) ... [2022-10-15 17:19:10,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10" (1/1) ... [2022-10-15 17:19:10,805 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 944 [2022-10-15 17:19:10,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:19:10,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:19:10,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:19:10,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:19:10,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10" (1/1) ... [2022-10-15 17:19:10,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10" (1/1) ... [2022-10-15 17:19:10,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10" (1/1) ... [2022-10-15 17:19:10,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10" (1/1) ... [2022-10-15 17:19:10,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10" (1/1) ... [2022-10-15 17:19:10,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10" (1/1) ... [2022-10-15 17:19:10,969 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10" (1/1) ... [2022-10-15 17:19:10,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10" (1/1) ... [2022-10-15 17:19:11,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:19:11,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:19:11,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:19:11,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:19:11,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10" (1/1) ... [2022-10-15 17:19:11,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:19:11,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:19:11,061 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 17:19:11,072 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 17:19:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:19:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:19:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:19:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:19:11,325 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:19:11,329 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:19:12,762 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:19:12,782 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:19:12,782 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:19:12,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:19:12 BoogieIcfgContainer [2022-10-15 17:19:12,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:19:12,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:19:12,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:19:12,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:19:12,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:19:09" (1/3) ... [2022-10-15 17:19:12,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1322d254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:19:12, skipping insertion in model container [2022-10-15 17:19:12,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:10" (2/3) ... [2022-10-15 17:19:12,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1322d254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:19:12, skipping insertion in model container [2022-10-15 17:19:12,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:19:12" (3/3) ... [2022-10-15 17:19:12,801 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4_overflow.ufo.UNBOUNDED.pals.c [2022-10-15 17:19:12,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:19:12,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:19:12,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:19:12,927 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;@4d01e1da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:19:12,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:19:12,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 305 states, 302 states have (on average 1.8112582781456954) internal successors, (547), 304 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:12,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 17:19:12,956 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:12,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:12,959 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:12,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:12,967 INFO L85 PathProgramCache]: Analyzing trace with hash -2111053517, now seen corresponding path program 1 times [2022-10-15 17:19:12,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:12,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191875307] [2022-10-15 17:19:12,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:12,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:13,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:13,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:13,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191875307] [2022-10-15 17:19:13,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191875307] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:13,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:13,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:19:13,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989266311] [2022-10-15 17:19:13,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:13,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 17:19:13,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:13,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 17:19:13,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:19:13,655 INFO L87 Difference]: Start difference. First operand has 305 states, 302 states have (on average 1.8112582781456954) internal successors, (547), 304 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:13,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:13,772 INFO L93 Difference]: Finished difference Result 300 states and 539 transitions. [2022-10-15 17:19:13,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 17:19:13,782 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-10-15 17:19:13,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:13,815 INFO L225 Difference]: With dead ends: 300 [2022-10-15 17:19:13,816 INFO L226 Difference]: Without dead ends: 300 [2022-10-15 17:19:13,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:19:13,829 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:13,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:13,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-10-15 17:19:13,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2022-10-15 17:19:13,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 299 states have (on average 1.8026755852842808) internal successors, (539), 299 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:13,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 539 transitions. [2022-10-15 17:19:13,971 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 539 transitions. Word has length 58 [2022-10-15 17:19:13,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:13,972 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 539 transitions. [2022-10-15 17:19:13,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:13,974 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 539 transitions. [2022-10-15 17:19:13,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 17:19:13,985 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:13,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:13,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:19:13,989 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:13,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:13,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2050737334, now seen corresponding path program 1 times [2022-10-15 17:19:13,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:13,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237544343] [2022-10-15 17:19:13,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:13,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:14,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:14,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:14,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237544343] [2022-10-15 17:19:14,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237544343] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:14,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:14,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:19:14,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922827965] [2022-10-15 17:19:14,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:14,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:19:14,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:14,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:19:14,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:14,744 INFO L87 Difference]: Start difference. First operand 300 states and 539 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:14,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:14,897 INFO L93 Difference]: Finished difference Result 303 states and 541 transitions. [2022-10-15 17:19:14,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:19:14,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-10-15 17:19:14,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:14,900 INFO L225 Difference]: With dead ends: 303 [2022-10-15 17:19:14,901 INFO L226 Difference]: Without dead ends: 300 [2022-10-15 17:19:14,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:19:14,903 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 3 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:14,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2103 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:14,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-10-15 17:19:14,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2022-10-15 17:19:14,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 299 states have (on average 1.6622073578595318) internal successors, (497), 299 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:14,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 497 transitions. [2022-10-15 17:19:14,920 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 497 transitions. Word has length 77 [2022-10-15 17:19:14,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:14,921 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 497 transitions. [2022-10-15 17:19:14,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:14,921 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 497 transitions. [2022-10-15 17:19:14,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-15 17:19:14,926 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:14,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:14,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:19:14,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:14,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:14,928 INFO L85 PathProgramCache]: Analyzing trace with hash 255571390, now seen corresponding path program 1 times [2022-10-15 17:19:14,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:14,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736221016] [2022-10-15 17:19:14,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:14,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:15,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:15,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:15,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736221016] [2022-10-15 17:19:15,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736221016] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:15,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:15,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:15,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283927102] [2022-10-15 17:19:15,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:15,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:15,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:15,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:15,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:15,242 INFO L87 Difference]: Start difference. First operand 300 states and 497 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:15,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:15,307 INFO L93 Difference]: Finished difference Result 397 states and 656 transitions. [2022-10-15 17:19:15,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:15,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-10-15 17:19:15,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:15,312 INFO L225 Difference]: With dead ends: 397 [2022-10-15 17:19:15,313 INFO L226 Difference]: Without dead ends: 397 [2022-10-15 17:19:15,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:15,315 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 156 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:15,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 1076 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:15,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-10-15 17:19:15,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 395. [2022-10-15 17:19:15,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 394 states have (on average 1.6624365482233503) internal successors, (655), 394 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:15,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 655 transitions. [2022-10-15 17:19:15,337 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 655 transitions. Word has length 118 [2022-10-15 17:19:15,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:15,338 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 655 transitions. [2022-10-15 17:19:15,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:15,339 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 655 transitions. [2022-10-15 17:19:15,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-15 17:19:15,341 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:15,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:15,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:19:15,343 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:15,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1923540700, now seen corresponding path program 1 times [2022-10-15 17:19:15,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:15,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644870656] [2022-10-15 17:19:15,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:15,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:15,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:15,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:15,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644870656] [2022-10-15 17:19:15,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644870656] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:15,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:15,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:15,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642831133] [2022-10-15 17:19:15,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:15,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:15,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:15,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:15,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:15,583 INFO L87 Difference]: Start difference. First operand 395 states and 655 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:15,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:15,620 INFO L93 Difference]: Finished difference Result 485 states and 806 transitions. [2022-10-15 17:19:15,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:15,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-10-15 17:19:15,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:15,627 INFO L225 Difference]: With dead ends: 485 [2022-10-15 17:19:15,627 INFO L226 Difference]: Without dead ends: 485 [2022-10-15 17:19:15,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:15,642 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 165 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:15,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1101 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:15,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-10-15 17:19:15,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 483. [2022-10-15 17:19:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.670124481327801) internal successors, (805), 482 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 805 transitions. [2022-10-15 17:19:15,671 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 805 transitions. Word has length 121 [2022-10-15 17:19:15,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:15,673 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 805 transitions. [2022-10-15 17:19:15,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:15,674 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 805 transitions. [2022-10-15 17:19:15,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-15 17:19:15,685 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:15,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:15,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:19:15,686 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:15,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:15,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1109580608, now seen corresponding path program 1 times [2022-10-15 17:19:15,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:15,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985691632] [2022-10-15 17:19:15,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:15,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:15,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:15,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:15,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985691632] [2022-10-15 17:19:15,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985691632] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:15,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:15,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:15,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028554974] [2022-10-15 17:19:15,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:15,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:15,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:15,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:15,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:15,957 INFO L87 Difference]: Start difference. First operand 483 states and 805 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:16,023 INFO L93 Difference]: Finished difference Result 745 states and 1242 transitions. [2022-10-15 17:19:16,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:16,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-10-15 17:19:16,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:16,029 INFO L225 Difference]: With dead ends: 745 [2022-10-15 17:19:16,030 INFO L226 Difference]: Without dead ends: 745 [2022-10-15 17:19:16,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:16,031 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 157 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:16,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1078 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:16,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2022-10-15 17:19:16,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 743. [2022-10-15 17:19:16,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 742 states have (on average 1.6725067385444743) internal successors, (1241), 742 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1241 transitions. [2022-10-15 17:19:16,059 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1241 transitions. Word has length 121 [2022-10-15 17:19:16,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:16,060 INFO L495 AbstractCegarLoop]: Abstraction has 743 states and 1241 transitions. [2022-10-15 17:19:16,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,061 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1241 transitions. [2022-10-15 17:19:16,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-15 17:19:16,063 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:16,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:16,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:19:16,064 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:16,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:16,065 INFO L85 PathProgramCache]: Analyzing trace with hash 2073181113, now seen corresponding path program 1 times [2022-10-15 17:19:16,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:16,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883228394] [2022-10-15 17:19:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:16,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:16,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:16,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:16,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883228394] [2022-10-15 17:19:16,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883228394] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:16,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:16,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:16,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836354794] [2022-10-15 17:19:16,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:16,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:16,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:16,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:16,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:16,249 INFO L87 Difference]: Start difference. First operand 743 states and 1241 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:16,292 INFO L93 Difference]: Finished difference Result 985 states and 1643 transitions. [2022-10-15 17:19:16,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:16,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-10-15 17:19:16,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:16,301 INFO L225 Difference]: With dead ends: 985 [2022-10-15 17:19:16,301 INFO L226 Difference]: Without dead ends: 985 [2022-10-15 17:19:16,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:16,303 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 158 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:16,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1082 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:16,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2022-10-15 17:19:16,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 983. [2022-10-15 17:19:16,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 982 states have (on average 1.6720977596741344) internal successors, (1642), 982 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1642 transitions. [2022-10-15 17:19:16,338 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1642 transitions. Word has length 124 [2022-10-15 17:19:16,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:16,339 INFO L495 AbstractCegarLoop]: Abstraction has 983 states and 1642 transitions. [2022-10-15 17:19:16,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,339 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1642 transitions. [2022-10-15 17:19:16,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-15 17:19:16,341 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:16,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:16,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:19:16,342 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:16,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:16,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1914082347, now seen corresponding path program 1 times [2022-10-15 17:19:16,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:16,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323850251] [2022-10-15 17:19:16,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:16,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:16,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:16,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323850251] [2022-10-15 17:19:16,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323850251] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:16,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:16,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:16,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832796225] [2022-10-15 17:19:16,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:16,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:16,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:16,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:16,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:16,632 INFO L87 Difference]: Start difference. First operand 983 states and 1642 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:16,709 INFO L93 Difference]: Finished difference Result 1678 states and 2789 transitions. [2022-10-15 17:19:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:16,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-10-15 17:19:16,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:16,722 INFO L225 Difference]: With dead ends: 1678 [2022-10-15 17:19:16,722 INFO L226 Difference]: Without dead ends: 1678 [2022-10-15 17:19:16,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:16,725 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 150 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:16,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1060 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:16,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2022-10-15 17:19:16,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1676. [2022-10-15 17:19:16,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 1675 states have (on average 1.6644776119402984) internal successors, (2788), 1675 states have internal predecessors, (2788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2788 transitions. [2022-10-15 17:19:16,786 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2788 transitions. Word has length 124 [2022-10-15 17:19:16,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:16,787 INFO L495 AbstractCegarLoop]: Abstraction has 1676 states and 2788 transitions. [2022-10-15 17:19:16,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2788 transitions. [2022-10-15 17:19:16,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-15 17:19:16,790 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:16,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:16,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:19:16,791 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:16,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:16,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1459354075, now seen corresponding path program 1 times [2022-10-15 17:19:16,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:16,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626927283] [2022-10-15 17:19:16,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:16,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:16,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:16,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626927283] [2022-10-15 17:19:16,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626927283] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:16,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:16,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:16,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079864258] [2022-10-15 17:19:16,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:16,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:16,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:16,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:16,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:16,998 INFO L87 Difference]: Start difference. First operand 1676 states and 2788 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:17,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:17,062 INFO L93 Difference]: Finished difference Result 2285 states and 3792 transitions. [2022-10-15 17:19:17,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:17,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-10-15 17:19:17,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:17,080 INFO L225 Difference]: With dead ends: 2285 [2022-10-15 17:19:17,081 INFO L226 Difference]: Without dead ends: 2285 [2022-10-15 17:19:17,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:17,083 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 151 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:17,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1063 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:17,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2022-10-15 17:19:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 2283. [2022-10-15 17:19:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 2282 states have (on average 1.661262050832603) internal successors, (3791), 2282 states have internal predecessors, (3791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:17,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 3791 transitions. [2022-10-15 17:19:17,194 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 3791 transitions. Word has length 127 [2022-10-15 17:19:17,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:17,195 INFO L495 AbstractCegarLoop]: Abstraction has 2283 states and 3791 transitions. [2022-10-15 17:19:17,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:17,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 3791 transitions. [2022-10-15 17:19:17,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-15 17:19:17,200 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:17,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:17,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:19:17,204 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:17,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:17,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1832413193, now seen corresponding path program 1 times [2022-10-15 17:19:17,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:17,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022678520] [2022-10-15 17:19:17,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:17,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:17,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:17,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022678520] [2022-10-15 17:19:17,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022678520] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:17,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:17,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:17,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927736702] [2022-10-15 17:19:17,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:17,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:17,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:17,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:17,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:17,534 INFO L87 Difference]: Start difference. First operand 2283 states and 3791 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:17,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:17,621 INFO L93 Difference]: Finished difference Result 4103 states and 6744 transitions. [2022-10-15 17:19:17,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:17,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-10-15 17:19:17,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:17,661 INFO L225 Difference]: With dead ends: 4103 [2022-10-15 17:19:17,661 INFO L226 Difference]: Without dead ends: 4103 [2022-10-15 17:19:17,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:17,663 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 143 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:17,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1042 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:17,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4103 states. [2022-10-15 17:19:17,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4103 to 4101. [2022-10-15 17:19:17,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4101 states, 4100 states have (on average 1.6446341463414633) internal successors, (6743), 4100 states have internal predecessors, (6743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:17,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 6743 transitions. [2022-10-15 17:19:17,826 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 6743 transitions. Word has length 127 [2022-10-15 17:19:17,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:17,827 INFO L495 AbstractCegarLoop]: Abstraction has 4101 states and 6743 transitions. [2022-10-15 17:19:17,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:17,827 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 6743 transitions. [2022-10-15 17:19:17,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-15 17:19:17,831 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:17,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:17,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:19:17,832 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:17,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:17,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1181394736, now seen corresponding path program 1 times [2022-10-15 17:19:17,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:17,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911783817] [2022-10-15 17:19:17,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:17,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:18,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:18,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:18,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911783817] [2022-10-15 17:19:18,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911783817] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:18,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:18,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:18,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299936918] [2022-10-15 17:19:18,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:18,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:18,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:18,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:18,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:18,047 INFO L87 Difference]: Start difference. First operand 4101 states and 6743 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:18,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:18,135 INFO L93 Difference]: Finished difference Result 5637 states and 9229 transitions. [2022-10-15 17:19:18,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:18,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-10-15 17:19:18,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:18,184 INFO L225 Difference]: With dead ends: 5637 [2022-10-15 17:19:18,185 INFO L226 Difference]: Without dead ends: 5637 [2022-10-15 17:19:18,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:18,187 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 144 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:18,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1044 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:18,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5637 states. [2022-10-15 17:19:18,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5637 to 5635. [2022-10-15 17:19:18,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5635 states, 5634 states have (on average 1.637912673056443) internal successors, (9228), 5634 states have internal predecessors, (9228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:18,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5635 states to 5635 states and 9228 transitions. [2022-10-15 17:19:18,449 INFO L78 Accepts]: Start accepts. Automaton has 5635 states and 9228 transitions. Word has length 130 [2022-10-15 17:19:18,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:18,450 INFO L495 AbstractCegarLoop]: Abstraction has 5635 states and 9228 transitions. [2022-10-15 17:19:18,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:18,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5635 states and 9228 transitions. [2022-10-15 17:19:18,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-15 17:19:18,453 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:18,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:18,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:19:18,454 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:18,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:18,455 INFO L85 PathProgramCache]: Analyzing trace with hash -163814164, now seen corresponding path program 1 times [2022-10-15 17:19:18,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:18,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365945571] [2022-10-15 17:19:18,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:18,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:18,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:18,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365945571] [2022-10-15 17:19:18,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365945571] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:18,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:18,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:19:18,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861390683] [2022-10-15 17:19:18,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:18,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:19:18,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:18,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:19:18,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:19:18,801 INFO L87 Difference]: Start difference. First operand 5635 states and 9228 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:19,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:19,478 INFO L93 Difference]: Finished difference Result 30579 states and 50158 transitions. [2022-10-15 17:19:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:19:19,479 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-10-15 17:19:19,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:19,625 INFO L225 Difference]: With dead ends: 30579 [2022-10-15 17:19:19,626 INFO L226 Difference]: Without dead ends: 30579 [2022-10-15 17:19:19,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:19:19,627 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 1750 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 3477 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:19,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 3477 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:19:19,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30579 states. [2022-10-15 17:19:20,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30579 to 10863. [2022-10-15 17:19:20,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10863 states, 10862 states have (on average 1.6309151169213774) internal successors, (17715), 10862 states have internal predecessors, (17715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:20,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10863 states to 10863 states and 17715 transitions. [2022-10-15 17:19:20,362 INFO L78 Accepts]: Start accepts. Automaton has 10863 states and 17715 transitions. Word has length 130 [2022-10-15 17:19:20,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:20,363 INFO L495 AbstractCegarLoop]: Abstraction has 10863 states and 17715 transitions. [2022-10-15 17:19:20,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:20,363 INFO L276 IsEmpty]: Start isEmpty. Operand 10863 states and 17715 transitions. [2022-10-15 17:19:20,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-15 17:19:20,365 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:20,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:20,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:19:20,367 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:20,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:20,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1417088843, now seen corresponding path program 1 times [2022-10-15 17:19:20,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:20,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473575499] [2022-10-15 17:19:20,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:20,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:20,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:20,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473575499] [2022-10-15 17:19:20,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473575499] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:20,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:20,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:20,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548795248] [2022-10-15 17:19:20,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:20,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:20,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:20,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:20,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:20,660 INFO L87 Difference]: Start difference. First operand 10863 states and 17715 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:21,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:21,087 INFO L93 Difference]: Finished difference Result 25063 states and 41086 transitions. [2022-10-15 17:19:21,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:21,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2022-10-15 17:19:21,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:21,205 INFO L225 Difference]: With dead ends: 25063 [2022-10-15 17:19:21,205 INFO L226 Difference]: Without dead ends: 25063 [2022-10-15 17:19:21,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:21,207 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 531 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 1467 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 17:19:21,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 1467 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:21,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25063 states. [2022-10-15 17:19:21,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25063 to 17908. [2022-10-15 17:19:21,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17908 states, 17907 states have (on average 1.6314290500921427) internal successors, (29214), 17907 states have internal predecessors, (29214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17908 states to 17908 states and 29214 transitions. [2022-10-15 17:19:21,895 INFO L78 Accepts]: Start accepts. Automaton has 17908 states and 29214 transitions. Word has length 131 [2022-10-15 17:19:21,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:21,895 INFO L495 AbstractCegarLoop]: Abstraction has 17908 states and 29214 transitions. [2022-10-15 17:19:21,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:21,897 INFO L276 IsEmpty]: Start isEmpty. Operand 17908 states and 29214 transitions. [2022-10-15 17:19:21,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-15 17:19:21,899 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:21,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:21,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:19:21,900 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:21,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:21,901 INFO L85 PathProgramCache]: Analyzing trace with hash -945521149, now seen corresponding path program 1 times [2022-10-15 17:19:21,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:21,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338289945] [2022-10-15 17:19:21,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:21,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:22,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:22,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:22,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338289945] [2022-10-15 17:19:22,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338289945] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:22,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:22,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:22,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660314974] [2022-10-15 17:19:22,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:22,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:22,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:22,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:22,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:22,264 INFO L87 Difference]: Start difference. First operand 17908 states and 29214 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:22,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:22,799 INFO L93 Difference]: Finished difference Result 40832 states and 66563 transitions. [2022-10-15 17:19:22,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:22,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2022-10-15 17:19:22,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:22,980 INFO L225 Difference]: With dead ends: 40832 [2022-10-15 17:19:22,980 INFO L226 Difference]: Without dead ends: 40832 [2022-10-15 17:19:22,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:22,981 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 529 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:22,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 1603 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:23,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40832 states. [2022-10-15 17:19:24,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40832 to 29281. [2022-10-15 17:19:24,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29281 states, 29280 states have (on average 1.6251024590163934) internal successors, (47583), 29280 states have internal predecessors, (47583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:24,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29281 states to 29281 states and 47583 transitions. [2022-10-15 17:19:24,535 INFO L78 Accepts]: Start accepts. Automaton has 29281 states and 47583 transitions. Word has length 132 [2022-10-15 17:19:24,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:24,535 INFO L495 AbstractCegarLoop]: Abstraction has 29281 states and 47583 transitions. [2022-10-15 17:19:24,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:24,536 INFO L276 IsEmpty]: Start isEmpty. Operand 29281 states and 47583 transitions. [2022-10-15 17:19:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:19:24,542 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:24,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:24,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:19:24,543 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:24,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:24,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1002982526, now seen corresponding path program 1 times [2022-10-15 17:19:24,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:24,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893526585] [2022-10-15 17:19:24,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:24,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:24,889 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 17:19:24,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:24,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893526585] [2022-10-15 17:19:24,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893526585] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:24,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:24,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:24,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863435204] [2022-10-15 17:19:24,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:24,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:24,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:24,893 INFO L87 Difference]: Start difference. First operand 29281 states and 47583 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:25,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:25,560 INFO L93 Difference]: Finished difference Result 66265 states and 107606 transitions. [2022-10-15 17:19:25,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:25,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2022-10-15 17:19:25,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:26,108 INFO L225 Difference]: With dead ends: 66265 [2022-10-15 17:19:26,109 INFO L226 Difference]: Without dead ends: 66265 [2022-10-15 17:19:26,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:26,110 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 527 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:26,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 1599 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:26,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66265 states. [2022-10-15 17:19:27,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66265 to 47630. [2022-10-15 17:19:27,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47630 states, 47629 states have (on average 1.6187616788091288) internal successors, (77100), 47629 states have internal predecessors, (77100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:28,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47630 states to 47630 states and 77100 transitions. [2022-10-15 17:19:28,091 INFO L78 Accepts]: Start accepts. Automaton has 47630 states and 77100 transitions. Word has length 133 [2022-10-15 17:19:28,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:28,092 INFO L495 AbstractCegarLoop]: Abstraction has 47630 states and 77100 transitions. [2022-10-15 17:19:28,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:28,092 INFO L276 IsEmpty]: Start isEmpty. Operand 47630 states and 77100 transitions. [2022-10-15 17:19:28,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-15 17:19:28,094 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:28,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:28,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:19:28,095 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:28,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:28,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1679686426, now seen corresponding path program 1 times [2022-10-15 17:19:28,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:28,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711866658] [2022-10-15 17:19:28,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:28,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:28,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:28,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:28,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711866658] [2022-10-15 17:19:28,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711866658] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:28,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:28,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:28,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489470216] [2022-10-15 17:19:28,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:28,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:28,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:28,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:28,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:28,542 INFO L87 Difference]: Start difference. First operand 47630 states and 77100 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:29,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:29,493 INFO L93 Difference]: Finished difference Result 105922 states and 171345 transitions. [2022-10-15 17:19:29,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:29,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-10-15 17:19:29,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:29,954 INFO L225 Difference]: With dead ends: 105922 [2022-10-15 17:19:29,954 INFO L226 Difference]: Without dead ends: 105922 [2022-10-15 17:19:29,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:29,958 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 525 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:29,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 1601 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:30,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105922 states. [2022-10-15 17:19:32,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105922 to 76551. [2022-10-15 17:19:32,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76551 states, 76550 states have (on average 1.6125538863487916) internal successors, (123441), 76550 states have internal predecessors, (123441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76551 states to 76551 states and 123441 transitions. [2022-10-15 17:19:33,166 INFO L78 Accepts]: Start accepts. Automaton has 76551 states and 123441 transitions. Word has length 134 [2022-10-15 17:19:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:33,167 INFO L495 AbstractCegarLoop]: Abstraction has 76551 states and 123441 transitions. [2022-10-15 17:19:33,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:33,168 INFO L276 IsEmpty]: Start isEmpty. Operand 76551 states and 123441 transitions. [2022-10-15 17:19:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-10-15 17:19:33,173 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:33,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:33,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:19:33,174 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:33,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:33,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1349768178, now seen corresponding path program 1 times [2022-10-15 17:19:33,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:33,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342394138] [2022-10-15 17:19:33,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:33,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:33,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:33,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:33,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342394138] [2022-10-15 17:19:33,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342394138] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:33,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:33,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:19:33,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384239425] [2022-10-15 17:19:33,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:33,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:19:33,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:33,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:19:33,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:19:33,705 INFO L87 Difference]: Start difference. First operand 76551 states and 123441 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:34,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:34,168 INFO L93 Difference]: Finished difference Result 76553 states and 122817 transitions. [2022-10-15 17:19:34,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:19:34,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2022-10-15 17:19:34,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:34,755 INFO L225 Difference]: With dead ends: 76553 [2022-10-15 17:19:34,755 INFO L226 Difference]: Without dead ends: 76553 [2022-10-15 17:19:34,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:19:34,756 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 719 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:34,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1873 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:34,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76553 states. [2022-10-15 17:19:36,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76553 to 76551. [2022-10-15 17:19:36,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76551 states, 76550 states have (on average 1.604389288047028) internal successors, (122816), 76550 states have internal predecessors, (122816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:36,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76551 states to 76551 states and 122816 transitions. [2022-10-15 17:19:36,832 INFO L78 Accepts]: Start accepts. Automaton has 76551 states and 122816 transitions. Word has length 136 [2022-10-15 17:19:36,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:36,833 INFO L495 AbstractCegarLoop]: Abstraction has 76551 states and 122816 transitions. [2022-10-15 17:19:36,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:36,833 INFO L276 IsEmpty]: Start isEmpty. Operand 76551 states and 122816 transitions. [2022-10-15 17:19:36,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-10-15 17:19:36,835 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:36,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:36,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:19:36,836 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:36,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:36,837 INFO L85 PathProgramCache]: Analyzing trace with hash 412618117, now seen corresponding path program 1 times [2022-10-15 17:19:36,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:36,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568397572] [2022-10-15 17:19:36,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:36,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:37,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:37,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:37,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568397572] [2022-10-15 17:19:37,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568397572] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:37,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:37,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:19:37,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340823002] [2022-10-15 17:19:37,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:37,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:19:37,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:37,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:19:37,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:19:37,343 INFO L87 Difference]: Start difference. First operand 76551 states and 122816 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:38,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:38,510 INFO L93 Difference]: Finished difference Result 147479 states and 235046 transitions. [2022-10-15 17:19:38,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:19:38,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2022-10-15 17:19:38,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:38,972 INFO L225 Difference]: With dead ends: 147479 [2022-10-15 17:19:38,972 INFO L226 Difference]: Without dead ends: 147479 [2022-10-15 17:19:38,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:19:38,975 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 285 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:38,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 2353 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:39,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147479 states. [2022-10-15 17:19:41,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147479 to 147477. [2022-10-15 17:19:42,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147477 states, 147476 states have (on average 1.5937847514171797) internal successors, (235045), 147476 states have internal predecessors, (235045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:43,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147477 states to 147477 states and 235045 transitions. [2022-10-15 17:19:43,259 INFO L78 Accepts]: Start accepts. Automaton has 147477 states and 235045 transitions. Word has length 139 [2022-10-15 17:19:43,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:43,266 INFO L495 AbstractCegarLoop]: Abstraction has 147477 states and 235045 transitions. [2022-10-15 17:19:43,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:43,269 INFO L276 IsEmpty]: Start isEmpty. Operand 147477 states and 235045 transitions. [2022-10-15 17:19:43,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-10-15 17:19:43,272 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:43,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:43,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:19:43,280 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:43,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:43,282 INFO L85 PathProgramCache]: Analyzing trace with hash -525085605, now seen corresponding path program 1 times [2022-10-15 17:19:43,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:43,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50026299] [2022-10-15 17:19:43,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:43,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:43,889 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 17:19:43,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:43,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50026299] [2022-10-15 17:19:43,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50026299] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:43,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:43,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:19:43,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382708329] [2022-10-15 17:19:43,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:43,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:19:43,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:43,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:19:43,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:43,892 INFO L87 Difference]: Start difference. First operand 147477 states and 235045 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:46,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:46,077 INFO L93 Difference]: Finished difference Result 285913 states and 449630 transitions. [2022-10-15 17:19:46,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:19:46,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-10-15 17:19:46,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:47,287 INFO L225 Difference]: With dead ends: 285913 [2022-10-15 17:19:47,288 INFO L226 Difference]: Without dead ends: 285913 [2022-10-15 17:19:47,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:19:47,290 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 493 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:47,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 2080 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:47,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285913 states. [2022-10-15 17:19:50,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285913 to 153285. [2022-10-15 17:19:51,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153285 states, 153284 states have (on average 1.5711098353383262) internal successors, (240826), 153284 states have internal predecessors, (240826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:52,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153285 states to 153285 states and 240826 transitions. [2022-10-15 17:19:52,495 INFO L78 Accepts]: Start accepts. Automaton has 153285 states and 240826 transitions. Word has length 140 [2022-10-15 17:19:52,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:52,496 INFO L495 AbstractCegarLoop]: Abstraction has 153285 states and 240826 transitions. [2022-10-15 17:19:52,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:52,497 INFO L276 IsEmpty]: Start isEmpty. Operand 153285 states and 240826 transitions. [2022-10-15 17:19:52,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-10-15 17:19:52,510 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:52,511 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:52,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:19:52,511 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:52,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:52,512 INFO L85 PathProgramCache]: Analyzing trace with hash 304969072, now seen corresponding path program 1 times [2022-10-15 17:19:52,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:52,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091450571] [2022-10-15 17:19:52,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:52,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:53,094 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:19:53,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:53,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091450571] [2022-10-15 17:19:53,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091450571] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:53,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:53,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:19:53,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929961392] [2022-10-15 17:19:53,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:53,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:19:53,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:53,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:19:53,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:19:53,098 INFO L87 Difference]: Start difference. First operand 153285 states and 240826 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)