/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_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:20:16,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:20:16,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:20:16,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 17:20:16,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:20:16,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:20:16,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:20:16,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:20:16,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:20:16,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:20:16,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:20:16,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:20:16,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:20:16,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:20:16,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:20:16,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:20:16,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:20:16,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:20:16,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:20:16,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:20:16,884 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 17:20:16,944 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:20:16,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:20:16,945 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:20:16,945 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:20:16,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:20:16,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:20:16,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:20:16,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:20:16,952 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:20:16,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:20:16,954 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:20:16,954 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:20:16,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:20:16,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:20:16,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:20:16,955 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:20:16,955 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:20:16,955 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:20:16,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:20:16,955 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:20:16,956 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:20:16,956 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:20:16,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:20:16,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:20:16,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:20:16,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:20:16,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:20:16,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:20:16,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:20:16,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:20:16,958 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:20:17,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:20:17,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:20:17,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:20:17,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:20:17,423 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:20:17,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c [2022-10-15 17:20:17,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2724d7f6f/9e8a0cd26cdb482a8e98298e69258a71/FLAGfd2505cfb [2022-10-15 17:20:18,203 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:20:18,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c [2022-10-15 17:20:18,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2724d7f6f/9e8a0cd26cdb482a8e98298e69258a71/FLAGfd2505cfb [2022-10-15 17:20:18,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2724d7f6f/9e8a0cd26cdb482a8e98298e69258a71 [2022-10-15 17:20:18,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:20:18,541 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:20:18,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:20:18,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:20:18,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:20:18,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:18,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34f82003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18, skipping insertion in model container [2022-10-15 17:20:18,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:18,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:20:18,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:20:18,878 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_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c[9529,9542] [2022-10-15 17:20:18,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:20:18,894 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:20:18,958 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_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c[9529,9542] [2022-10-15 17:20:18,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:20:18,996 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:20:18,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18 WrapperNode [2022-10-15 17:20:18,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:20:18,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:20:18,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:20:18,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:20:19,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:19,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:19,064 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 320 [2022-10-15 17:20:19,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:20:19,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:20:19,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:20:19,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:20:19,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:19,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:19,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:19,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:19,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:19,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:19,104 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:19,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:19,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:20:19,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:20:19,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:20:19,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:20:19,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18" (1/1) ... [2022-10-15 17:20:19,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:20:19,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:20:19,193 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 17:20:19,226 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 17:20:19,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:20:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:20:19,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:20:19,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:20:19,409 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:20:19,416 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:20:20,322 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:20:20,335 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:20:20,335 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:20:20,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:20:20 BoogieIcfgContainer [2022-10-15 17:20:20,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:20:20,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:20:20,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:20:20,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:20:20,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:20:18" (1/3) ... [2022-10-15 17:20:20,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70eec2e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:20:20, skipping insertion in model container [2022-10-15 17:20:20,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:18" (2/3) ... [2022-10-15 17:20:20,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70eec2e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:20:20, skipping insertion in model container [2022-10-15 17:20:20,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:20:20" (3/3) ... [2022-10-15 17:20:20,350 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c [2022-10-15 17:20:20,376 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:20:20,376 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:20:20,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:20:20,452 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;@247df7d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:20:20,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:20:20,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 100 states have (on average 1.7) internal successors, (170), 102 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:20:20,470 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:20,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:20,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:20,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:20,483 INFO L85 PathProgramCache]: Analyzing trace with hash -82473199, now seen corresponding path program 1 times [2022-10-15 17:20:20,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:20,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044076482] [2022-10-15 17:20:20,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:20,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:20,759 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 17:20:20,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:20,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044076482] [2022-10-15 17:20:20,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044076482] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:20,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:20,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:20:20,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825779890] [2022-10-15 17:20:20,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:20,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 17:20:20,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:20,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 17:20:20,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:20:20,824 INFO L87 Difference]: Start difference. First operand has 103 states, 100 states have (on average 1.7) internal successors, (170), 102 states have internal predecessors, (170), 0 states have call successors, (0), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:20,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:20,868 INFO L93 Difference]: Finished difference Result 98 states and 162 transitions. [2022-10-15 17:20:20,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 17:20:20,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-10-15 17:20:20,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:20,885 INFO L225 Difference]: With dead ends: 98 [2022-10-15 17:20:20,885 INFO L226 Difference]: Without dead ends: 98 [2022-10-15 17:20:20,887 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 17:20:20,892 INFO L413 NwaCegarLoop]: 162 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, 162 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 17:20:20,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:20,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-15 17:20:20,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-10-15 17:20:20,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.6701030927835052) internal successors, (162), 97 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:20,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 162 transitions. [2022-10-15 17:20:20,947 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 162 transitions. Word has length 10 [2022-10-15 17:20:20,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:20,947 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 162 transitions. [2022-10-15 17:20:20,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 162 transitions. [2022-10-15 17:20:20,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 17:20:20,950 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:20,950 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] [2022-10-15 17:20:20,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:20:20,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:20,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:20,952 INFO L85 PathProgramCache]: Analyzing trace with hash 913590980, now seen corresponding path program 1 times [2022-10-15 17:20:20,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:20,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200235910] [2022-10-15 17:20:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:20,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:21,276 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 17:20:21,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:21,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200235910] [2022-10-15 17:20:21,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200235910] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:21,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:21,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:20:21,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841039973] [2022-10-15 17:20:21,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:21,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:20:21,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:21,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:20:21,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:20:21,282 INFO L87 Difference]: Start difference. First operand 98 states and 162 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:21,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:21,366 INFO L93 Difference]: Finished difference Result 101 states and 164 transitions. [2022-10-15 17:20:21,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:20:21,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-10-15 17:20:21,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:21,369 INFO L225 Difference]: With dead ends: 101 [2022-10-15 17:20:21,369 INFO L226 Difference]: Without dead ends: 98 [2022-10-15 17:20:21,370 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 17:20:21,372 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 3 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:21,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 613 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:21,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-15 17:20:21,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-10-15 17:20:21,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.422680412371134) internal successors, (138), 97 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 138 transitions. [2022-10-15 17:20:21,386 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 138 transitions. Word has length 30 [2022-10-15 17:20:21,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:21,386 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 138 transitions. [2022-10-15 17:20:21,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:21,387 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 138 transitions. [2022-10-15 17:20:21,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-15 17:20:21,389 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:21,389 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] [2022-10-15 17:20:21,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:20:21,390 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:21,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:21,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1508952555, now seen corresponding path program 1 times [2022-10-15 17:20:21,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:21,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895489488] [2022-10-15 17:20:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:21,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:21,531 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 17:20:21,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:21,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895489488] [2022-10-15 17:20:21,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895489488] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:21,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:21,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:21,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458125634] [2022-10-15 17:20:21,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:21,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:21,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:21,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:21,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:21,536 INFO L87 Difference]: Start difference. First operand 98 states and 138 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:21,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:21,565 INFO L93 Difference]: Finished difference Result 154 states and 225 transitions. [2022-10-15 17:20:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:21,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-10-15 17:20:21,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:21,569 INFO L225 Difference]: With dead ends: 154 [2022-10-15 17:20:21,569 INFO L226 Difference]: Without dead ends: 154 [2022-10-15 17:20:21,569 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 17:20:21,571 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 91 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 299 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 17:20:21,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 299 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:21,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-10-15 17:20:21,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2022-10-15 17:20:21,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 1.4834437086092715) internal successors, (224), 151 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 224 transitions. [2022-10-15 17:20:21,592 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 224 transitions. Word has length 53 [2022-10-15 17:20:21,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:21,593 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 224 transitions. [2022-10-15 17:20:21,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:21,594 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 224 transitions. [2022-10-15 17:20:21,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-15 17:20:21,596 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:21,596 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] [2022-10-15 17:20:21,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:20:21,597 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:21,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:21,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1759991574, now seen corresponding path program 1 times [2022-10-15 17:20:21,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:21,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846155981] [2022-10-15 17:20:21,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:21,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:21,791 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 17:20:21,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:21,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846155981] [2022-10-15 17:20:21,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846155981] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:21,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:21,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:21,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897195658] [2022-10-15 17:20:21,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:21,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:21,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:21,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:21,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:21,795 INFO L87 Difference]: Start difference. First operand 152 states and 224 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:21,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:21,836 INFO L93 Difference]: Finished difference Result 250 states and 376 transitions. [2022-10-15 17:20:21,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:21,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-10-15 17:20:21,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:21,847 INFO L225 Difference]: With dead ends: 250 [2022-10-15 17:20:21,847 INFO L226 Difference]: Without dead ends: 250 [2022-10-15 17:20:21,848 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 17:20:21,850 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 86 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 290 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 17:20:21,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 290 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:21,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-10-15 17:20:21,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2022-10-15 17:20:21,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 247 states have (on average 1.5182186234817814) internal successors, (375), 247 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:21,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 375 transitions. [2022-10-15 17:20:21,901 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 375 transitions. Word has length 54 [2022-10-15 17:20:21,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:21,902 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 375 transitions. [2022-10-15 17:20:21,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:21,903 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 375 transitions. [2022-10-15 17:20:21,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-15 17:20:21,907 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:21,908 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] [2022-10-15 17:20:21,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:20:21,908 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:21,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:21,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1078196827, now seen corresponding path program 1 times [2022-10-15 17:20:21,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:21,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473136984] [2022-10-15 17:20:21,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:21,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:22,103 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 17:20:22,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:22,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473136984] [2022-10-15 17:20:22,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473136984] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:22,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:22,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:22,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686006755] [2022-10-15 17:20:22,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:22,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:22,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:22,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:22,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:22,112 INFO L87 Difference]: Start difference. First operand 248 states and 375 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:22,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:22,139 INFO L93 Difference]: Finished difference Result 418 states and 636 transitions. [2022-10-15 17:20:22,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:22,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-10-15 17:20:22,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:22,145 INFO L225 Difference]: With dead ends: 418 [2022-10-15 17:20:22,145 INFO L226 Difference]: Without dead ends: 418 [2022-10-15 17:20:22,146 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 17:20:22,151 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 81 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 281 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 17:20:22,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 281 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:22,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-10-15 17:20:22,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 416. [2022-10-15 17:20:22,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 415 states have (on average 1.5301204819277108) internal successors, (635), 415 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:22,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 635 transitions. [2022-10-15 17:20:22,177 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 635 transitions. Word has length 55 [2022-10-15 17:20:22,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:22,178 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 635 transitions. [2022-10-15 17:20:22,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:22,179 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 635 transitions. [2022-10-15 17:20:22,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-15 17:20:22,181 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:22,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:22,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:20:22,182 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:22,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:22,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1363611750, now seen corresponding path program 1 times [2022-10-15 17:20:22,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:22,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388779984] [2022-10-15 17:20:22,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:22,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:22,334 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 17:20:22,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:22,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388779984] [2022-10-15 17:20:22,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388779984] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:22,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:22,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:20:22,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296492022] [2022-10-15 17:20:22,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:22,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:20:22,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:22,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:20:22,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:20:22,342 INFO L87 Difference]: Start difference. First operand 416 states and 635 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:22,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:22,494 INFO L93 Difference]: Finished difference Result 1960 states and 3039 transitions. [2022-10-15 17:20:22,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:20:22,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-15 17:20:22,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:22,507 INFO L225 Difference]: With dead ends: 1960 [2022-10-15 17:20:22,507 INFO L226 Difference]: Without dead ends: 1960 [2022-10-15 17:20:22,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:20:22,509 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 780 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:22,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1152 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:20:22,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2022-10-15 17:20:22,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 800. [2022-10-15 17:20:22,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 1.5306633291614518) internal successors, (1223), 799 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:22,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1223 transitions. [2022-10-15 17:20:22,549 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1223 transitions. Word has length 56 [2022-10-15 17:20:22,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:22,550 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 1223 transitions. [2022-10-15 17:20:22,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:22,550 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1223 transitions. [2022-10-15 17:20:22,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-15 17:20:22,552 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:22,552 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] [2022-10-15 17:20:22,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:20:22,553 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:22,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:22,554 INFO L85 PathProgramCache]: Analyzing trace with hash 294385397, now seen corresponding path program 1 times [2022-10-15 17:20:22,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:22,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368329232] [2022-10-15 17:20:22,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:22,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:22,783 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 17:20:22,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:22,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368329232] [2022-10-15 17:20:22,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368329232] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:22,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:22,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:20:22,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771201221] [2022-10-15 17:20:22,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:22,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:20:22,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:22,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:20:22,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:20:22,787 INFO L87 Difference]: Start difference. First operand 800 states and 1223 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:22,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:22,919 INFO L93 Difference]: Finished difference Result 2798 states and 4250 transitions. [2022-10-15 17:20:22,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:20:22,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-10-15 17:20:22,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:22,936 INFO L225 Difference]: With dead ends: 2798 [2022-10-15 17:20:22,937 INFO L226 Difference]: Without dead ends: 2798 [2022-10-15 17:20:22,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:20:22,938 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 356 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:22,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 652 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:20:22,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2022-10-15 17:20:22,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2792. [2022-10-15 17:20:23,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2791 states have (on average 1.5216768183446794) internal successors, (4247), 2791 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:23,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4247 transitions. [2022-10-15 17:20:23,017 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4247 transitions. Word has length 57 [2022-10-15 17:20:23,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:23,018 INFO L495 AbstractCegarLoop]: Abstraction has 2792 states and 4247 transitions. [2022-10-15 17:20:23,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:23,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4247 transitions. [2022-10-15 17:20:23,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 17:20:23,020 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:23,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:23,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:20:23,021 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:23,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:23,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1296866655, now seen corresponding path program 1 times [2022-10-15 17:20:23,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:23,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189621530] [2022-10-15 17:20:23,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:23,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:23,089 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 17:20:23,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:23,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189621530] [2022-10-15 17:20:23,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189621530] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:23,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:23,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:23,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492046689] [2022-10-15 17:20:23,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:23,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:23,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:23,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:23,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:23,093 INFO L87 Difference]: Start difference. First operand 2792 states and 4247 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:23,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:23,149 INFO L93 Difference]: Finished difference Result 4706 states and 7008 transitions. [2022-10-15 17:20:23,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:23,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-10-15 17:20:23,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:23,176 INFO L225 Difference]: With dead ends: 4706 [2022-10-15 17:20:23,177 INFO L226 Difference]: Without dead ends: 4706 [2022-10-15 17:20:23,177 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 17:20:23,179 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 93 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 318 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 17:20:23,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 318 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4706 states. [2022-10-15 17:20:23,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4706 to 4704. [2022-10-15 17:20:23,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4704 states, 4703 states have (on average 1.489900063789071) internal successors, (7007), 4703 states have internal predecessors, (7007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:23,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4704 states to 4704 states and 7007 transitions. [2022-10-15 17:20:23,343 INFO L78 Accepts]: Start accepts. Automaton has 4704 states and 7007 transitions. Word has length 58 [2022-10-15 17:20:23,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:23,345 INFO L495 AbstractCegarLoop]: Abstraction has 4704 states and 7007 transitions. [2022-10-15 17:20:23,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:23,345 INFO L276 IsEmpty]: Start isEmpty. Operand 4704 states and 7007 transitions. [2022-10-15 17:20:23,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 17:20:23,347 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:23,348 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 17:20:23,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:20:23,349 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:23,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:23,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1866607497, now seen corresponding path program 1 times [2022-10-15 17:20:23,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:23,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913901973] [2022-10-15 17:20:23,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:23,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:23,848 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 17:20:23,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:23,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913901973] [2022-10-15 17:20:23,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913901973] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:23,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:23,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:20:23,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184967040] [2022-10-15 17:20:23,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:23,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:20:23,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:23,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:20:23,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:20:23,853 INFO L87 Difference]: Start difference. First operand 4704 states and 7007 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 17:20:24,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:24,061 INFO L93 Difference]: Finished difference Result 9888 states and 14367 transitions. [2022-10-15 17:20:24,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:20:24,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 17:20:24,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:24,111 INFO L225 Difference]: With dead ends: 9888 [2022-10-15 17:20:24,111 INFO L226 Difference]: Without dead ends: 9888 [2022-10-15 17:20:24,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-15 17:20:24,113 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 783 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:24,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 663 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:24,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9888 states. [2022-10-15 17:20:24,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9888 to 5088. [2022-10-15 17:20:24,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5088 states, 5087 states have (on average 1.4529192058187537) internal successors, (7391), 5087 states have internal predecessors, (7391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:24,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5088 states to 5088 states and 7391 transitions. [2022-10-15 17:20:24,353 INFO L78 Accepts]: Start accepts. Automaton has 5088 states and 7391 transitions. Word has length 58 [2022-10-15 17:20:24,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:24,353 INFO L495 AbstractCegarLoop]: Abstraction has 5088 states and 7391 transitions. [2022-10-15 17:20:24,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 17:20:24,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5088 states and 7391 transitions. [2022-10-15 17:20:24,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-15 17:20:24,355 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:24,356 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] [2022-10-15 17:20:24,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:20:24,356 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:24,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:24,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2082836158, now seen corresponding path program 1 times [2022-10-15 17:20:24,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:24,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410956134] [2022-10-15 17:20:24,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:24,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:24,467 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 17:20:24,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:24,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410956134] [2022-10-15 17:20:24,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410956134] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:24,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:24,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:24,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490932172] [2022-10-15 17:20:24,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:24,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:24,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:24,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:24,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:24,471 INFO L87 Difference]: Start difference. First operand 5088 states and 7391 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:24,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:24,528 INFO L93 Difference]: Finished difference Result 7276 states and 10474 transitions. [2022-10-15 17:20:24,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:24,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2022-10-15 17:20:24,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:24,568 INFO L225 Difference]: With dead ends: 7276 [2022-10-15 17:20:24,568 INFO L226 Difference]: Without dead ends: 7276 [2022-10-15 17:20:24,575 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 17:20:24,576 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 71 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:24,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 240 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:24,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7276 states. [2022-10-15 17:20:24,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7276 to 7218. [2022-10-15 17:20:24,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7218 states, 7217 states have (on average 1.4433975336012193) internal successors, (10417), 7217 states have internal predecessors, (10417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:24,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7218 states to 7218 states and 10417 transitions. [2022-10-15 17:20:24,792 INFO L78 Accepts]: Start accepts. Automaton has 7218 states and 10417 transitions. Word has length 59 [2022-10-15 17:20:24,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:24,792 INFO L495 AbstractCegarLoop]: Abstraction has 7218 states and 10417 transitions. [2022-10-15 17:20:24,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:24,793 INFO L276 IsEmpty]: Start isEmpty. Operand 7218 states and 10417 transitions. [2022-10-15 17:20:24,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 17:20:24,828 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:24,828 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:24,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:20:24,829 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:24,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:24,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1385324011, now seen corresponding path program 1 times [2022-10-15 17:20:24,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:24,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496761060] [2022-10-15 17:20:24,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:24,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:25,457 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:20:25,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:25,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496761060] [2022-10-15 17:20:25,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496761060] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:20:25,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087308713] [2022-10-15 17:20:25,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:25,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:20:25,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:20:25,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:20:25,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:20:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:25,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:20:25,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:20:25,989 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:20:25,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:20:26,230 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:20:26,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087308713] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:20:26,231 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:20:26,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 14 [2022-10-15 17:20:26,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949918603] [2022-10-15 17:20:26,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:20:26,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 17:20:26,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:26,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 17:20:26,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-10-15 17:20:26,233 INFO L87 Difference]: Start difference. First operand 7218 states and 10417 transitions. Second operand has 14 states, 14 states have (on average 17.0) internal successors, (238), 14 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:32,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:32,204 INFO L93 Difference]: Finished difference Result 84994 states and 119674 transitions. [2022-10-15 17:20:32,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-10-15 17:20:32,205 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.0) internal successors, (238), 14 states have internal predecessors, (238), 0 states have call successors, (0), 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 84 [2022-10-15 17:20:32,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:32,526 INFO L225 Difference]: With dead ends: 84994 [2022-10-15 17:20:32,527 INFO L226 Difference]: Without dead ends: 84994 [2022-10-15 17:20:32,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3772 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1857, Invalid=7455, Unknown=0, NotChecked=0, Total=9312 [2022-10-15 17:20:32,538 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 7175 mSDsluCounter, 2677 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7175 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 2533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:32,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7175 Valid, 3165 Invalid, 2533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 2330 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-15 17:20:32,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84994 states. [2022-10-15 17:20:33,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84994 to 49302. [2022-10-15 17:20:34,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49302 states, 49301 states have (on average 1.4253463418591914) internal successors, (70271), 49301 states have internal predecessors, (70271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:34,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49302 states to 49302 states and 70271 transitions. [2022-10-15 17:20:34,599 INFO L78 Accepts]: Start accepts. Automaton has 49302 states and 70271 transitions. Word has length 84 [2022-10-15 17:20:34,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:34,602 INFO L495 AbstractCegarLoop]: Abstraction has 49302 states and 70271 transitions. [2022-10-15 17:20:34,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.0) internal successors, (238), 14 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:34,605 INFO L276 IsEmpty]: Start isEmpty. Operand 49302 states and 70271 transitions. [2022-10-15 17:20:34,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 17:20:34,627 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:34,627 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:34,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 17:20:34,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 17:20:34,832 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:34,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:34,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1919863804, now seen corresponding path program 1 times [2022-10-15 17:20:34,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:34,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119483775] [2022-10-15 17:20:34,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:34,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:35,123 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:20:35,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:35,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119483775] [2022-10-15 17:20:35,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119483775] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:35,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:35,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:35,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772310750] [2022-10-15 17:20:35,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:35,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:35,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:35,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:35,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:35,126 INFO L87 Difference]: Start difference. First operand 49302 states and 70271 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:35,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:35,549 INFO L93 Difference]: Finished difference Result 67714 states and 95112 transitions. [2022-10-15 17:20:35,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:35,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-10-15 17:20:35,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:35,802 INFO L225 Difference]: With dead ends: 67714 [2022-10-15 17:20:35,803 INFO L226 Difference]: Without dead ends: 67714 [2022-10-15 17:20:35,803 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 17:20:35,804 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 72 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:35,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 291 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:35,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67714 states. [2022-10-15 17:20:37,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67714 to 63482. [2022-10-15 17:20:37,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63482 states, 63481 states have (on average 1.4087522250752194) internal successors, (89429), 63481 states have internal predecessors, (89429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:37,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63482 states to 63482 states and 89429 transitions. [2022-10-15 17:20:37,611 INFO L78 Accepts]: Start accepts. Automaton has 63482 states and 89429 transitions. Word has length 84 [2022-10-15 17:20:37,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:37,611 INFO L495 AbstractCegarLoop]: Abstraction has 63482 states and 89429 transitions. [2022-10-15 17:20:37,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:37,612 INFO L276 IsEmpty]: Start isEmpty. Operand 63482 states and 89429 transitions. [2022-10-15 17:20:37,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 17:20:37,626 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:37,627 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:37,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:20:37,628 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:37,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:37,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1033627306, now seen corresponding path program 1 times [2022-10-15 17:20:37,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:37,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441422283] [2022-10-15 17:20:37,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:37,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:37,877 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 17:20:37,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:37,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441422283] [2022-10-15 17:20:37,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441422283] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:37,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:37,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:20:37,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136100760] [2022-10-15 17:20:37,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:37,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:20:37,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:37,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:20:37,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:20:37,880 INFO L87 Difference]: Start difference. First operand 63482 states and 89429 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:38,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:38,676 INFO L93 Difference]: Finished difference Result 121306 states and 171011 transitions. [2022-10-15 17:20:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:20:38,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 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 84 [2022-10-15 17:20:38,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:39,171 INFO L225 Difference]: With dead ends: 121306 [2022-10-15 17:20:39,171 INFO L226 Difference]: Without dead ends: 121306 [2022-10-15 17:20:39,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:20:39,173 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 678 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:39,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 824 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:20:39,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121306 states. [2022-10-15 17:20:40,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121306 to 89144. [2022-10-15 17:20:40,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89144 states, 89143 states have (on average 1.4068743479577757) internal successors, (125413), 89143 states have internal predecessors, (125413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:41,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89144 states to 89144 states and 125413 transitions. [2022-10-15 17:20:41,595 INFO L78 Accepts]: Start accepts. Automaton has 89144 states and 125413 transitions. Word has length 84 [2022-10-15 17:20:41,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:41,599 INFO L495 AbstractCegarLoop]: Abstraction has 89144 states and 125413 transitions. [2022-10-15 17:20:41,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:41,599 INFO L276 IsEmpty]: Start isEmpty. Operand 89144 states and 125413 transitions. [2022-10-15 17:20:41,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 17:20:41,627 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:41,628 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:41,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:20:41,628 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:41,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:41,632 INFO L85 PathProgramCache]: Analyzing trace with hash -19484726, now seen corresponding path program 1 times [2022-10-15 17:20:41,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:41,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281665065] [2022-10-15 17:20:41,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:41,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:41,720 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:20:41,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:41,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281665065] [2022-10-15 17:20:41,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281665065] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:41,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:41,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:41,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007226362] [2022-10-15 17:20:41,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:41,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:41,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:41,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:41,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:41,724 INFO L87 Difference]: Start difference. First operand 89144 states and 125413 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:42,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:42,118 INFO L93 Difference]: Finished difference Result 103186 states and 142629 transitions. [2022-10-15 17:20:42,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:42,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-10-15 17:20:42,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:42,462 INFO L225 Difference]: With dead ends: 103186 [2022-10-15 17:20:42,462 INFO L226 Difference]: Without dead ends: 91970 [2022-10-15 17:20:42,463 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 17:20:42,463 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 73 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:42,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 304 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:42,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91970 states. [2022-10-15 17:20:44,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91970 to 88218. [2022-10-15 17:20:44,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88218 states, 88217 states have (on average 1.3820012015824614) internal successors, (121916), 88217 states have internal predecessors, (121916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:44,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88218 states to 88218 states and 121916 transitions. [2022-10-15 17:20:44,548 INFO L78 Accepts]: Start accepts. Automaton has 88218 states and 121916 transitions. Word has length 84 [2022-10-15 17:20:44,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:44,549 INFO L495 AbstractCegarLoop]: Abstraction has 88218 states and 121916 transitions. [2022-10-15 17:20:44,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:44,549 INFO L276 IsEmpty]: Start isEmpty. Operand 88218 states and 121916 transitions. [2022-10-15 17:20:44,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 17:20:44,569 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:44,569 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:44,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:20:44,571 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:44,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:44,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1876395358, now seen corresponding path program 1 times [2022-10-15 17:20:44,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:44,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599939235] [2022-10-15 17:20:44,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:44,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:44,760 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:20:44,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:44,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599939235] [2022-10-15 17:20:44,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599939235] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:44,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:44,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:20:44,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708004411] [2022-10-15 17:20:44,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:44,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:20:44,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:44,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:20:44,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:20:44,763 INFO L87 Difference]: Start difference. First operand 88218 states and 121916 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 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 17:20:45,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:45,898 INFO L93 Difference]: Finished difference Result 140346 states and 195072 transitions. [2022-10-15 17:20:45,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:20:45,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 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 84 [2022-10-15 17:20:45,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:46,161 INFO L225 Difference]: With dead ends: 140346 [2022-10-15 17:20:46,161 INFO L226 Difference]: Without dead ends: 140335 [2022-10-15 17:20:46,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:20:46,166 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 662 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:46,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 794 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:46,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140335 states. [2022-10-15 17:20:47,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140335 to 107928. [2022-10-15 17:20:48,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107928 states, 107927 states have (on average 1.3834536306948215) internal successors, (149312), 107927 states have internal predecessors, (149312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107928 states to 107928 states and 149312 transitions. [2022-10-15 17:20:48,635 INFO L78 Accepts]: Start accepts. Automaton has 107928 states and 149312 transitions. Word has length 84 [2022-10-15 17:20:48,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:48,635 INFO L495 AbstractCegarLoop]: Abstraction has 107928 states and 149312 transitions. [2022-10-15 17:20:48,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 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 17:20:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand 107928 states and 149312 transitions. [2022-10-15 17:20:48,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 17:20:48,654 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:48,655 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:48,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:20:48,656 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:48,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:48,657 INFO L85 PathProgramCache]: Analyzing trace with hash -2074966836, now seen corresponding path program 1 times [2022-10-15 17:20:48,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:48,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841205336] [2022-10-15 17:20:48,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:48,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:48,838 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 17:20:48,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:48,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841205336] [2022-10-15 17:20:48,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841205336] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:48,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:48,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:20:48,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183689223] [2022-10-15 17:20:48,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:48,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:20:48,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:48,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:20:48,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:20:48,841 INFO L87 Difference]: Start difference. First operand 107928 states and 149312 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:49,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:49,677 INFO L93 Difference]: Finished difference Result 153511 states and 213375 transitions. [2022-10-15 17:20:49,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:20:49,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 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 84 [2022-10-15 17:20:49,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:50,039 INFO L225 Difference]: With dead ends: 153511 [2022-10-15 17:20:50,039 INFO L226 Difference]: Without dead ends: 153511 [2022-10-15 17:20:50,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:20:50,043 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 623 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:50,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 862 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:50,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153511 states. [2022-10-15 17:20:51,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153511 to 121104. [2022-10-15 17:20:51,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121104 states, 121103 states have (on average 1.3846890663319653) internal successors, (167690), 121103 states have internal predecessors, (167690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:52,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121104 states to 121104 states and 167690 transitions. [2022-10-15 17:20:52,409 INFO L78 Accepts]: Start accepts. Automaton has 121104 states and 167690 transitions. Word has length 84 [2022-10-15 17:20:52,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:52,409 INFO L495 AbstractCegarLoop]: Abstraction has 121104 states and 167690 transitions. [2022-10-15 17:20:52,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:52,410 INFO L276 IsEmpty]: Start isEmpty. Operand 121104 states and 167690 transitions. [2022-10-15 17:20:52,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-15 17:20:52,441 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:52,442 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] [2022-10-15 17:20:52,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:20:52,442 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:52,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:52,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1959427768, now seen corresponding path program 1 times [2022-10-15 17:20:52,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:52,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958321839] [2022-10-15 17:20:52,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:52,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:52,583 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:20:52,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:52,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958321839] [2022-10-15 17:20:52,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958321839] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:52,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:52,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:52,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51391923] [2022-10-15 17:20:52,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:52,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:52,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:52,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:52,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:52,588 INFO L87 Difference]: Start difference. First operand 121104 states and 167690 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:53,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:53,442 INFO L93 Difference]: Finished difference Result 222305 states and 302370 transitions. [2022-10-15 17:20:53,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:53,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-10-15 17:20:53,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:54,569 INFO L225 Difference]: With dead ends: 222305 [2022-10-15 17:20:54,570 INFO L226 Difference]: Without dead ends: 222252 [2022-10-15 17:20:54,571 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 17:20:54,574 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 68 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:54,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 268 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:54,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222252 states. [2022-10-15 17:20:57,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222252 to 222110. [2022-10-15 17:20:57,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222110 states, 222109 states have (on average 1.360043942388647) internal successors, (302078), 222109 states have internal predecessors, (302078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:58,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222110 states to 222110 states and 302078 transitions. [2022-10-15 17:20:58,464 INFO L78 Accepts]: Start accepts. Automaton has 222110 states and 302078 transitions. Word has length 85 [2022-10-15 17:20:58,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:58,464 INFO L495 AbstractCegarLoop]: Abstraction has 222110 states and 302078 transitions. [2022-10-15 17:20:58,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:20:58,465 INFO L276 IsEmpty]: Start isEmpty. Operand 222110 states and 302078 transitions. [2022-10-15 17:20:58,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-15 17:20:58,476 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:58,477 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] [2022-10-15 17:20:58,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:20:58,477 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:58,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:58,478 INFO L85 PathProgramCache]: Analyzing trace with hash -318911282, now seen corresponding path program 1 times [2022-10-15 17:20:58,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:58,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358319095] [2022-10-15 17:20:58,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:58,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:58,624 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:20:58,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:58,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358319095] [2022-10-15 17:20:58,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358319095] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:58,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:58,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:20:58,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112701996] [2022-10-15 17:20:58,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:58,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:20:58,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:58,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:20:58,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:20:58,628 INFO L87 Difference]: Start difference. First operand 222110 states and 302078 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:21:00,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:00,359 INFO L93 Difference]: Finished difference Result 323824 states and 441749 transitions. [2022-10-15 17:21:00,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:21:00,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 85 [2022-10-15 17:21:00,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:01,395 INFO L225 Difference]: With dead ends: 323824 [2022-10-15 17:21:01,395 INFO L226 Difference]: Without dead ends: 323631 [2022-10-15 17:21:01,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:21:01,396 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 614 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:01,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 963 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:01,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323631 states.