/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:19:02,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:19:02,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:19:02,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 17:19:02,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:19:02,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:19:02,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:19:02,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:19:02,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:19:02,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:19:02,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:19:02,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:19:02,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:19:02,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:19:02,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:19:02,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:19:02,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:19:03,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:19:03,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:19:03,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:19:03,011 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 17:19:03,067 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:19:03,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:19:03,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:19:03,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:19:03,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:19:03,070 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:19:03,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:19:03,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:19:03,073 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:19:03,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:19:03,074 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:19:03,075 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:19:03,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:19:03,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:19:03,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:19:03,076 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:19:03,076 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:19:03,076 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:19:03,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:19:03,077 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:19:03,077 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:19:03,077 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:19:03,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:19:03,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:19:03,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:19:03,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:19:03,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:19:03,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:19:03,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:19:03,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:19:03,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:19:03,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:19:03,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:19:03,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:19:03,542 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:19:03,543 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:19:03,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c [2022-10-15 17:19:03,629 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3809918a8/9854de80433c4a05ad7d623d2145daef/FLAG3f4674040 [2022-10-15 17:19:04,351 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:19:04,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c [2022-10-15 17:19:04,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3809918a8/9854de80433c4a05ad7d623d2145daef/FLAG3f4674040 [2022-10-15 17:19:04,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3809918a8/9854de80433c4a05ad7d623d2145daef [2022-10-15 17:19:04,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:19:04,611 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:19:04,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:19:04,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:19:04,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:19:04,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:19:04" (1/1) ... [2022-10-15 17:19:04,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50230458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:04, skipping insertion in model container [2022-10-15 17:19:04,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:19:04" (1/1) ... [2022-10-15 17:19:04,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:19:04,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:19:05,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c[28368,28381] [2022-10-15 17:19:05,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:19:05,036 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:19:05,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c[28368,28381] [2022-10-15 17:19:05,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:19:05,210 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:19:05,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05 WrapperNode [2022-10-15 17:19:05,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:19:05,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:19:05,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:19:05,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:19:05,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05" (1/1) ... [2022-10-15 17:19:05,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05" (1/1) ... [2022-10-15 17:19:05,319 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 952 [2022-10-15 17:19:05,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:19:05,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:19:05,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:19:05,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:19:05,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05" (1/1) ... [2022-10-15 17:19:05,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05" (1/1) ... [2022-10-15 17:19:05,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05" (1/1) ... [2022-10-15 17:19:05,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05" (1/1) ... [2022-10-15 17:19:05,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05" (1/1) ... [2022-10-15 17:19:05,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05" (1/1) ... [2022-10-15 17:19:05,405 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05" (1/1) ... [2022-10-15 17:19:05,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05" (1/1) ... [2022-10-15 17:19:05,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:19:05,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:19:05,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:19:05,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:19:05,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05" (1/1) ... [2022-10-15 17:19:05,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:19:05,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:19:05,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 17:19:05,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 17:19:05,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:19:05,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:19:05,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:19:05,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:19:05,729 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:19:05,732 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:19:06,959 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:19:06,974 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:19:06,974 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:19:06,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:19:06 BoogieIcfgContainer [2022-10-15 17:19:06,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:19:06,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:19:06,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:19:06,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:19:06,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:19:04" (1/3) ... [2022-10-15 17:19:06,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7043fcc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:19:06, skipping insertion in model container [2022-10-15 17:19:06,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:05" (2/3) ... [2022-10-15 17:19:06,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7043fcc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:19:06, skipping insertion in model container [2022-10-15 17:19:06,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:19:06" (3/3) ... [2022-10-15 17:19:06,988 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.UNBOUNDED.pals.c [2022-10-15 17:19:07,009 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:19:07,010 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:19:07,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:19:07,080 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;@18ff27b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:19:07,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:19:07,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 313 states, 310 states have (on average 1.803225806451613) internal successors, (559), 312 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 17:19:07,103 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:07,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:07,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:07,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:07,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2111025713, now seen corresponding path program 1 times [2022-10-15 17:19:07,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:07,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83033371] [2022-10-15 17:19:07,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:07,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:07,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:07,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83033371] [2022-10-15 17:19:07,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83033371] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:07,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:07,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:19:07,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081094762] [2022-10-15 17:19:07,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:07,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 17:19:07,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:07,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 17:19:07,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:19:07,771 INFO L87 Difference]: Start difference. First operand has 313 states, 310 states have (on average 1.803225806451613) internal successors, (559), 312 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:07,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:07,855 INFO L93 Difference]: Finished difference Result 308 states and 551 transitions. [2022-10-15 17:19:07,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 17:19:07,858 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-10-15 17:19:07,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:07,873 INFO L225 Difference]: With dead ends: 308 [2022-10-15 17:19:07,874 INFO L226 Difference]: Without dead ends: 308 [2022-10-15 17:19:07,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:19:07,880 INFO L413 NwaCegarLoop]: 551 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, 551 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:07,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:07,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-10-15 17:19:07,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2022-10-15 17:19:07,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.794788273615635) internal successors, (551), 307 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:07,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 551 transitions. [2022-10-15 17:19:07,948 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 551 transitions. Word has length 58 [2022-10-15 17:19:07,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:07,949 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 551 transitions. [2022-10-15 17:19:07,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:07,949 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 551 transitions. [2022-10-15 17:19:07,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 17:19:07,954 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:07,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:07,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:19:07,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:07,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:07,957 INFO L85 PathProgramCache]: Analyzing trace with hash 749227090, now seen corresponding path program 1 times [2022-10-15 17:19:07,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:07,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598135974] [2022-10-15 17:19:07,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:07,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:08,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:08,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:08,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598135974] [2022-10-15 17:19:08,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598135974] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:08,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:08,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:19:08,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538766035] [2022-10-15 17:19:08,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:08,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:19:08,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:08,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:19:08,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:08,404 INFO L87 Difference]: Start difference. First operand 308 states and 551 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:08,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:08,524 INFO L93 Difference]: Finished difference Result 311 states and 553 transitions. [2022-10-15 17:19:08,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:19:08,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-10-15 17:19:08,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:08,528 INFO L225 Difference]: With dead ends: 311 [2022-10-15 17:19:08,528 INFO L226 Difference]: Without dead ends: 308 [2022-10-15 17:19:08,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:19:08,531 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 3 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:08,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2151 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:08,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-10-15 17:19:08,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2022-10-15 17:19:08,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.6579804560260587) internal successors, (509), 307 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:08,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 509 transitions. [2022-10-15 17:19:08,552 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 509 transitions. Word has length 77 [2022-10-15 17:19:08,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:08,553 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 509 transitions. [2022-10-15 17:19:08,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:08,553 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 509 transitions. [2022-10-15 17:19:08,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-15 17:19:08,559 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:08,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:08,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:19:08,560 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:08,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:08,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1045938854, now seen corresponding path program 1 times [2022-10-15 17:19:08,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:08,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195508870] [2022-10-15 17:19:08,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:08,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:08,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:08,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:08,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195508870] [2022-10-15 17:19:08,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195508870] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:08,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:08,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:08,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093084778] [2022-10-15 17:19:08,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:08,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:08,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:08,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:08,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:08,871 INFO L87 Difference]: Start difference. First operand 308 states and 509 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:08,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:08,923 INFO L93 Difference]: Finished difference Result 413 states and 679 transitions. [2022-10-15 17:19:08,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:08,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-10-15 17:19:08,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:08,931 INFO L225 Difference]: With dead ends: 413 [2022-10-15 17:19:08,932 INFO L226 Difference]: Without dead ends: 413 [2022-10-15 17:19:08,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:08,941 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 167 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:08,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 959 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:08,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-10-15 17:19:08,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 410. [2022-10-15 17:19:08,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 409 states have (on average 1.6552567237163813) internal successors, (677), 409 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:08,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 677 transitions. [2022-10-15 17:19:08,985 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 677 transitions. Word has length 118 [2022-10-15 17:19:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:08,987 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 677 transitions. [2022-10-15 17:19:08,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:08,987 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 677 transitions. [2022-10-15 17:19:08,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-15 17:19:08,993 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:08,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:08,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:19:08,994 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:08,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:08,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1919052267, now seen corresponding path program 1 times [2022-10-15 17:19:08,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:08,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385518310] [2022-10-15 17:19:08,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:08,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:09,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:09,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:09,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385518310] [2022-10-15 17:19:09,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385518310] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:09,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:09,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:09,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548680126] [2022-10-15 17:19:09,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:09,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:09,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:09,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:09,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:09,186 INFO L87 Difference]: Start difference. First operand 410 states and 677 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:09,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:09,219 INFO L93 Difference]: Finished difference Result 610 states and 1004 transitions. [2022-10-15 17:19:09,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:09,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-10-15 17:19:09,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:09,224 INFO L225 Difference]: With dead ends: 610 [2022-10-15 17:19:09,224 INFO L226 Difference]: Without dead ends: 610 [2022-10-15 17:19:09,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:09,226 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 168 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:09,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 971 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:09,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-10-15 17:19:09,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 606. [2022-10-15 17:19:09,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 605 states have (on average 1.6545454545454545) internal successors, (1001), 605 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:09,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 1001 transitions. [2022-10-15 17:19:09,247 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 1001 transitions. Word has length 121 [2022-10-15 17:19:09,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:09,247 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 1001 transitions. [2022-10-15 17:19:09,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:09,248 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 1001 transitions. [2022-10-15 17:19:09,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-15 17:19:09,250 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:09,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:09,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:19:09,251 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:09,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:09,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1777448074, now seen corresponding path program 1 times [2022-10-15 17:19:09,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:09,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936195062] [2022-10-15 17:19:09,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:09,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:09,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:09,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:09,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936195062] [2022-10-15 17:19:09,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936195062] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:09,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:09,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:09,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491481764] [2022-10-15 17:19:09,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:09,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:09,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:09,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:09,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:09,428 INFO L87 Difference]: Start difference. First operand 606 states and 1001 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:09,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:09,462 INFO L93 Difference]: Finished difference Result 984 states and 1614 transitions. [2022-10-15 17:19:09,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:09,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-10-15 17:19:09,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:09,470 INFO L225 Difference]: With dead ends: 984 [2022-10-15 17:19:09,470 INFO L226 Difference]: Without dead ends: 984 [2022-10-15 17:19:09,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:09,472 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 161 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:09,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 972 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:09,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-10-15 17:19:09,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 978. [2022-10-15 17:19:09,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 977 states have (on average 1.646878198567042) internal successors, (1609), 977 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:09,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1609 transitions. [2022-10-15 17:19:09,501 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1609 transitions. Word has length 124 [2022-10-15 17:19:09,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:09,502 INFO L495 AbstractCegarLoop]: Abstraction has 978 states and 1609 transitions. [2022-10-15 17:19:09,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:09,502 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1609 transitions. [2022-10-15 17:19:09,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-15 17:19:09,505 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:09,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:09,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:19:09,506 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:09,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:09,507 INFO L85 PathProgramCache]: Analyzing trace with hash 78545669, now seen corresponding path program 1 times [2022-10-15 17:19:09,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:09,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897443702] [2022-10-15 17:19:09,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:09,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:09,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:09,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897443702] [2022-10-15 17:19:09,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897443702] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:09,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:09,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:09,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523465141] [2022-10-15 17:19:09,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:09,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:09,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:09,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:09,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:09,669 INFO L87 Difference]: Start difference. First operand 978 states and 1609 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:09,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:09,711 INFO L93 Difference]: Finished difference Result 1692 states and 2754 transitions. [2022-10-15 17:19:09,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:09,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-10-15 17:19:09,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:09,722 INFO L225 Difference]: With dead ends: 1692 [2022-10-15 17:19:09,723 INFO L226 Difference]: Without dead ends: 1692 [2022-10-15 17:19:09,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:09,724 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 154 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:09,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 973 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:09,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2022-10-15 17:19:09,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1682. [2022-10-15 17:19:09,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1682 states, 1681 states have (on average 1.6329565734681737) internal successors, (2745), 1681 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:09,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2745 transitions. [2022-10-15 17:19:09,777 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2745 transitions. Word has length 127 [2022-10-15 17:19:09,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:09,778 INFO L495 AbstractCegarLoop]: Abstraction has 1682 states and 2745 transitions. [2022-10-15 17:19:09,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:09,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2745 transitions. [2022-10-15 17:19:09,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-15 17:19:09,781 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:09,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:09,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:19:09,782 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:09,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:09,783 INFO L85 PathProgramCache]: Analyzing trace with hash -579836998, now seen corresponding path program 1 times [2022-10-15 17:19:09,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:09,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778487388] [2022-10-15 17:19:09,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:09,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:10,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:10,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:10,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778487388] [2022-10-15 17:19:10,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778487388] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:10,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:10,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:19:10,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510223396] [2022-10-15 17:19:10,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:10,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:19:10,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:10,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:19:10,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:19:10,055 INFO L87 Difference]: Start difference. First operand 1682 states and 2745 transitions. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:10,457 INFO L93 Difference]: Finished difference Result 7152 states and 11764 transitions. [2022-10-15 17:19:10,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:19:10,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-10-15 17:19:10,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:10,501 INFO L225 Difference]: With dead ends: 7152 [2022-10-15 17:19:10,502 INFO L226 Difference]: Without dead ends: 7152 [2022-10-15 17:19:10,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:19:10,503 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 1536 mSDsluCounter, 4056 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 4567 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:10,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 4567 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:19:10,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7152 states. [2022-10-15 17:19:10,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7152 to 3070. [2022-10-15 17:19:10,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3069 states have (on average 1.632453567937439) internal successors, (5010), 3069 states have internal predecessors, (5010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 5010 transitions. [2022-10-15 17:19:10,671 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 5010 transitions. Word has length 130 [2022-10-15 17:19:10,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:10,672 INFO L495 AbstractCegarLoop]: Abstraction has 3070 states and 5010 transitions. [2022-10-15 17:19:10,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:10,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 5010 transitions. [2022-10-15 17:19:10,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-15 17:19:10,676 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:10,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:10,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:19:10,677 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:10,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:10,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1405282905, now seen corresponding path program 1 times [2022-10-15 17:19:10,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:10,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523398495] [2022-10-15 17:19:10,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:10,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:10,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:10,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:10,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523398495] [2022-10-15 17:19:10,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523398495] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:10,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:10,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:10,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545282888] [2022-10-15 17:19:10,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:10,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:10,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:10,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:10,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:10,916 INFO L87 Difference]: Start difference. First operand 3070 states and 5010 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:11,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:11,048 INFO L93 Difference]: Finished difference Result 6074 states and 9990 transitions. [2022-10-15 17:19:11,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:11,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2022-10-15 17:19:11,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:11,081 INFO L225 Difference]: With dead ends: 6074 [2022-10-15 17:19:11,081 INFO L226 Difference]: Without dead ends: 6074 [2022-10-15 17:19:11,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:11,083 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 565 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:11,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1655 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:11,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6074 states. [2022-10-15 17:19:11,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6074 to 4555. [2022-10-15 17:19:11,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4555 states, 4554 states have (on average 1.636802810715854) internal successors, (7454), 4554 states have internal predecessors, (7454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:11,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4555 states to 4555 states and 7454 transitions. [2022-10-15 17:19:11,255 INFO L78 Accepts]: Start accepts. Automaton has 4555 states and 7454 transitions. Word has length 131 [2022-10-15 17:19:11,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:11,255 INFO L495 AbstractCegarLoop]: Abstraction has 4555 states and 7454 transitions. [2022-10-15 17:19:11,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:11,256 INFO L276 IsEmpty]: Start isEmpty. Operand 4555 states and 7454 transitions. [2022-10-15 17:19:11,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-15 17:19:11,260 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:11,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:11,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:19:11,261 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:11,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:11,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1311505199, now seen corresponding path program 1 times [2022-10-15 17:19:11,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:11,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689067856] [2022-10-15 17:19:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:11,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:11,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:11,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:11,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689067856] [2022-10-15 17:19:11,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689067856] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:11,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:11,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:11,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211060442] [2022-10-15 17:19:11,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:11,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:11,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:11,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:11,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:11,495 INFO L87 Difference]: Start difference. First operand 4555 states and 7454 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:11,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:11,645 INFO L93 Difference]: Finished difference Result 8969 states and 14718 transitions. [2022-10-15 17:19:11,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:11,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2022-10-15 17:19:11,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:11,696 INFO L225 Difference]: With dead ends: 8969 [2022-10-15 17:19:11,697 INFO L226 Difference]: Without dead ends: 8969 [2022-10-15 17:19:11,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:11,698 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 565 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:11,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1645 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:11,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8969 states. [2022-10-15 17:19:11,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8969 to 6738. [2022-10-15 17:19:11,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6738 states, 6737 states have (on average 1.6355944782544158) internal successors, (11019), 6737 states have internal predecessors, (11019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:11,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6738 states to 6738 states and 11019 transitions. [2022-10-15 17:19:11,989 INFO L78 Accepts]: Start accepts. Automaton has 6738 states and 11019 transitions. Word has length 132 [2022-10-15 17:19:11,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:11,989 INFO L495 AbstractCegarLoop]: Abstraction has 6738 states and 11019 transitions. [2022-10-15 17:19:11,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:11,994 INFO L276 IsEmpty]: Start isEmpty. Operand 6738 states and 11019 transitions. [2022-10-15 17:19:11,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:19:11,998 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:11,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:11,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:19:11,999 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:12,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:12,000 INFO L85 PathProgramCache]: Analyzing trace with hash -547474472, now seen corresponding path program 1 times [2022-10-15 17:19:12,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:12,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284196268] [2022-10-15 17:19:12,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:12,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:12,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:12,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284196268] [2022-10-15 17:19:12,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284196268] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:12,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:12,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:12,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111147753] [2022-10-15 17:19:12,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:12,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:12,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:12,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:12,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:12,124 INFO L87 Difference]: Start difference. First operand 6738 states and 11019 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:12,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:12,205 INFO L93 Difference]: Finished difference Result 10369 states and 16934 transitions. [2022-10-15 17:19:12,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:12,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2022-10-15 17:19:12,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:12,238 INFO L225 Difference]: With dead ends: 10369 [2022-10-15 17:19:12,239 INFO L226 Difference]: Without dead ends: 10369 [2022-10-15 17:19:12,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:12,241 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 174 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:12,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1133 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10369 states. [2022-10-15 17:19:12,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10369 to 10367. [2022-10-15 17:19:12,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10367 states, 10366 states have (on average 1.6335134092224581) internal successors, (16933), 10366 states have internal predecessors, (16933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:12,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10367 states to 10367 states and 16933 transitions. [2022-10-15 17:19:12,525 INFO L78 Accepts]: Start accepts. Automaton has 10367 states and 16933 transitions. Word has length 133 [2022-10-15 17:19:12,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:12,525 INFO L495 AbstractCegarLoop]: Abstraction has 10367 states and 16933 transitions. [2022-10-15 17:19:12,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:12,526 INFO L276 IsEmpty]: Start isEmpty. Operand 10367 states and 16933 transitions. [2022-10-15 17:19:12,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:19:12,529 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:12,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:12,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:19:12,530 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:12,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:12,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1576389218, now seen corresponding path program 1 times [2022-10-15 17:19:12,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:12,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671588761] [2022-10-15 17:19:12,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:12,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:12,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:12,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:12,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671588761] [2022-10-15 17:19:12,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671588761] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:12,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:12,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:12,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994583239] [2022-10-15 17:19:12,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:12,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:12,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:12,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:12,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:12,649 INFO L87 Difference]: Start difference. First operand 10367 states and 16933 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:12,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:12,757 INFO L93 Difference]: Finished difference Result 15821 states and 25714 transitions. [2022-10-15 17:19:12,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:12,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2022-10-15 17:19:12,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:12,892 INFO L225 Difference]: With dead ends: 15821 [2022-10-15 17:19:12,893 INFO L226 Difference]: Without dead ends: 15821 [2022-10-15 17:19:12,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:12,894 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 167 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:12,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1123 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:12,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15821 states. [2022-10-15 17:19:13,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15821 to 15819. [2022-10-15 17:19:13,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15819 states, 15818 states have (on average 1.6255531672777848) internal successors, (25713), 15818 states have internal predecessors, (25713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:13,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15819 states to 15819 states and 25713 transitions. [2022-10-15 17:19:13,311 INFO L78 Accepts]: Start accepts. Automaton has 15819 states and 25713 transitions. Word has length 133 [2022-10-15 17:19:13,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:13,312 INFO L495 AbstractCegarLoop]: Abstraction has 15819 states and 25713 transitions. [2022-10-15 17:19:13,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:13,312 INFO L276 IsEmpty]: Start isEmpty. Operand 15819 states and 25713 transitions. [2022-10-15 17:19:13,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:19:13,315 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:13,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:13,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:19:13,315 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:13,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:13,316 INFO L85 PathProgramCache]: Analyzing trace with hash 721034008, now seen corresponding path program 1 times [2022-10-15 17:19:13,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:13,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350839884] [2022-10-15 17:19:13,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:13,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:13,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:13,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:13,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350839884] [2022-10-15 17:19:13,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350839884] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:13,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:13,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:13,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841121439] [2022-10-15 17:19:13,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:13,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:13,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:13,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:13,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:13,452 INFO L87 Difference]: Start difference. First operand 15819 states and 25713 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:13,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:13,694 INFO L93 Difference]: Finished difference Result 22254 states and 36013 transitions. [2022-10-15 17:19:13,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:13,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2022-10-15 17:19:13,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:13,750 INFO L225 Difference]: With dead ends: 22254 [2022-10-15 17:19:13,750 INFO L226 Difference]: Without dead ends: 22254 [2022-10-15 17:19:13,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:13,752 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 160 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:13,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1106 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:13,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22254 states. [2022-10-15 17:19:14,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22254 to 22252. [2022-10-15 17:19:14,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22252 states, 22251 states have (on average 1.6184441148712418) internal successors, (36012), 22251 states have internal predecessors, (36012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22252 states to 22252 states and 36012 transitions. [2022-10-15 17:19:14,566 INFO L78 Accepts]: Start accepts. Automaton has 22252 states and 36012 transitions. Word has length 133 [2022-10-15 17:19:14,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:14,566 INFO L495 AbstractCegarLoop]: Abstraction has 22252 states and 36012 transitions. [2022-10-15 17:19:14,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:14,567 INFO L276 IsEmpty]: Start isEmpty. Operand 22252 states and 36012 transitions. [2022-10-15 17:19:14,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:19:14,569 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:14,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:14,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:19:14,570 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:14,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:14,571 INFO L85 PathProgramCache]: Analyzing trace with hash 536413840, now seen corresponding path program 1 times [2022-10-15 17:19:14,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:14,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064500928] [2022-10-15 17:19:14,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:14,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:14,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:14,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064500928] [2022-10-15 17:19:14,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064500928] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:14,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:14,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:14,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529840329] [2022-10-15 17:19:14,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:14,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:14,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:14,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:14,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:14,839 INFO L87 Difference]: Start difference. First operand 22252 states and 36012 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:15,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:15,470 INFO L93 Difference]: Finished difference Result 49852 states and 80719 transitions. [2022-10-15 17:19:15,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:15,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2022-10-15 17:19:15,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:15,590 INFO L225 Difference]: With dead ends: 49852 [2022-10-15 17:19:15,591 INFO L226 Difference]: Without dead ends: 49852 [2022-10-15 17:19:15,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:15,592 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 563 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:15,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 1647 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:15,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49852 states. [2022-10-15 17:19:16,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49852 to 35959. [2022-10-15 17:19:16,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35959 states, 35958 states have (on average 1.6142722064630959) internal successors, (58046), 35958 states have internal predecessors, (58046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35959 states to 35959 states and 58046 transitions. [2022-10-15 17:19:16,863 INFO L78 Accepts]: Start accepts. Automaton has 35959 states and 58046 transitions. Word has length 133 [2022-10-15 17:19:16,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:16,864 INFO L495 AbstractCegarLoop]: Abstraction has 35959 states and 58046 transitions. [2022-10-15 17:19:16,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:16,865 INFO L276 IsEmpty]: Start isEmpty. Operand 35959 states and 58046 transitions. [2022-10-15 17:19:16,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-15 17:19:16,866 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:16,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:16,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:19:16,867 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:16,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:16,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1673295070, now seen corresponding path program 1 times [2022-10-15 17:19:16,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:16,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539439805] [2022-10-15 17:19:16,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:16,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:17,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:17,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:17,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539439805] [2022-10-15 17:19:17,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539439805] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:17,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:17,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:17,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169257727] [2022-10-15 17:19:17,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:17,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:17,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:17,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:17,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:17,139 INFO L87 Difference]: Start difference. First operand 35959 states and 58046 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:17,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:17,661 INFO L93 Difference]: Finished difference Result 50524 states and 81116 transitions. [2022-10-15 17:19:17,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:17,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2022-10-15 17:19:17,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:17,867 INFO L225 Difference]: With dead ends: 50524 [2022-10-15 17:19:17,867 INFO L226 Difference]: Without dead ends: 50524 [2022-10-15 17:19:17,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:17,868 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 153 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:17,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1088 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:17,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50524 states. [2022-10-15 17:19:18,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50524 to 50522. [2022-10-15 17:19:18,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50522 states, 50521 states have (on average 1.605569961006314) internal successors, (81115), 50521 states have internal predecessors, (81115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:19,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50522 states to 50522 states and 81115 transitions. [2022-10-15 17:19:19,110 INFO L78 Accepts]: Start accepts. Automaton has 50522 states and 81115 transitions. Word has length 133 [2022-10-15 17:19:19,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:19,111 INFO L495 AbstractCegarLoop]: Abstraction has 50522 states and 81115 transitions. [2022-10-15 17:19:19,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:19,111 INFO L276 IsEmpty]: Start isEmpty. Operand 50522 states and 81115 transitions. [2022-10-15 17:19:19,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-15 17:19:19,113 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:19,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:19,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:19:19,114 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:19,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:19,114 INFO L85 PathProgramCache]: Analyzing trace with hash -2138633752, now seen corresponding path program 1 times [2022-10-15 17:19:19,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:19,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232030686] [2022-10-15 17:19:19,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:19,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:19,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:19,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:19,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232030686] [2022-10-15 17:19:19,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232030686] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:19,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:19,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:19,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579199137] [2022-10-15 17:19:19,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:19,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:19,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:19,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:19,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:19,311 INFO L87 Difference]: Start difference. First operand 50522 states and 81115 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:20,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:20,143 INFO L93 Difference]: Finished difference Result 112382 states and 180466 transitions. [2022-10-15 17:19:20,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:20,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2022-10-15 17:19:20,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:20,802 INFO L225 Difference]: With dead ends: 112382 [2022-10-15 17:19:20,802 INFO L226 Difference]: Without dead ends: 112382 [2022-10-15 17:19:20,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:20,803 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 561 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:20,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1632 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:20,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112382 states. [2022-10-15 17:19:22,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112382 to 81227. [2022-10-15 17:19:22,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81227 states, 81226 states have (on average 1.6005835569891413) internal successors, (130009), 81226 states have internal predecessors, (130009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:23,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81227 states to 81227 states and 130009 transitions. [2022-10-15 17:19:23,235 INFO L78 Accepts]: Start accepts. Automaton has 81227 states and 130009 transitions. Word has length 134 [2022-10-15 17:19:23,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:23,236 INFO L495 AbstractCegarLoop]: Abstraction has 81227 states and 130009 transitions. [2022-10-15 17:19:23,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand 81227 states and 130009 transitions. [2022-10-15 17:19:23,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-10-15 17:19:23,238 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:23,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:23,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:19:23,239 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:23,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:23,239 INFO L85 PathProgramCache]: Analyzing trace with hash -153851200, now seen corresponding path program 1 times [2022-10-15 17:19:23,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:23,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307554287] [2022-10-15 17:19:23,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:23,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:23,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:23,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:23,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307554287] [2022-10-15 17:19:23,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307554287] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:23,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:23,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:19:23,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052244273] [2022-10-15 17:19:23,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:23,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:19:23,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:23,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:19:23,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:19:23,645 INFO L87 Difference]: Start difference. First operand 81227 states and 130009 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:24,466 INFO L93 Difference]: Finished difference Result 81229 states and 129385 transitions. [2022-10-15 17:19:24,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:19:24,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2022-10-15 17:19:24,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:24,598 INFO L225 Difference]: With dead ends: 81229 [2022-10-15 17:19:24,599 INFO L226 Difference]: Without dead ends: 81229 [2022-10-15 17:19:24,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:19:24,600 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 457 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:24,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 1925 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:24,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81229 states. [2022-10-15 17:19:25,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81229 to 81227. [2022-10-15 17:19:25,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81227 states, 81226 states have (on average 1.5928889764361165) internal successors, (129384), 81226 states have internal predecessors, (129384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:26,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81227 states to 81227 states and 129384 transitions. [2022-10-15 17:19:26,208 INFO L78 Accepts]: Start accepts. Automaton has 81227 states and 129384 transitions. Word has length 136 [2022-10-15 17:19:26,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:26,208 INFO L495 AbstractCegarLoop]: Abstraction has 81227 states and 129384 transitions. [2022-10-15 17:19:26,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:26,209 INFO L276 IsEmpty]: Start isEmpty. Operand 81227 states and 129384 transitions. [2022-10-15 17:19:26,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-10-15 17:19:26,210 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:26,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:26,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:19:26,211 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:26,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:26,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1698314093, now seen corresponding path program 1 times [2022-10-15 17:19:26,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:26,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409242340] [2022-10-15 17:19:26,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:26,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:26,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:26,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409242340] [2022-10-15 17:19:26,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409242340] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:26,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:26,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:19:26,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36641162] [2022-10-15 17:19:26,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:26,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:19:26,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:26,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:19:26,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:19:26,589 INFO L87 Difference]: Start difference. First operand 81227 states and 129384 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:27,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:27,615 INFO L93 Difference]: Finished difference Result 156507 states and 247750 transitions. [2022-10-15 17:19:27,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:19:27,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2022-10-15 17:19:27,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:27,834 INFO L225 Difference]: With dead ends: 156507 [2022-10-15 17:19:27,835 INFO L226 Difference]: Without dead ends: 156507 [2022-10-15 17:19:27,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:19:27,836 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 756 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:27,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 1934 Invalid, 74 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:27,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156507 states. [2022-10-15 17:19:30,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156507 to 156505. [2022-10-15 17:19:30,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156505 states, 156504 states have (on average 1.5830202422941266) internal successors, (247749), 156504 states have internal predecessors, (247749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:31,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156505 states to 156505 states and 247749 transitions. [2022-10-15 17:19:31,190 INFO L78 Accepts]: Start accepts. Automaton has 156505 states and 247749 transitions. Word has length 139 [2022-10-15 17:19:31,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:31,191 INFO L495 AbstractCegarLoop]: Abstraction has 156505 states and 247749 transitions. [2022-10-15 17:19:31,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:31,192 INFO L276 IsEmpty]: Start isEmpty. Operand 156505 states and 247749 transitions. [2022-10-15 17:19:31,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-10-15 17:19:31,193 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:31,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:31,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:19:31,194 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:31,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:31,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1539474647, now seen corresponding path program 1 times [2022-10-15 17:19:31,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:31,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057825262] [2022-10-15 17:19:31,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:31,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:32,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:32,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:32,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057825262] [2022-10-15 17:19:32,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057825262] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:32,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:32,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:19:32,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356337389] [2022-10-15 17:19:32,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:32,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:19:32,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:32,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:19:32,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:32,218 INFO L87 Difference]: Start difference. First operand 156505 states and 247749 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:33,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:33,612 INFO L93 Difference]: Finished difference Result 302830 states and 473561 transitions. [2022-10-15 17:19:33,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:19:33,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-10-15 17:19:33,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:34,214 INFO L225 Difference]: With dead ends: 302830 [2022-10-15 17:19:34,214 INFO L226 Difference]: Without dead ends: 302830 [2022-10-15 17:19:34,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:19:34,215 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 529 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:34,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 2132 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:34,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302830 states. [2022-10-15 17:19:37,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302830 to 162313. [2022-10-15 17:19:37,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162313 states, 162312 states have (on average 1.5619917196510424) internal successors, (253530), 162312 states have internal predecessors, (253530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:37,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162313 states to 162313 states and 253530 transitions. [2022-10-15 17:19:37,756 INFO L78 Accepts]: Start accepts. Automaton has 162313 states and 253530 transitions. Word has length 140 [2022-10-15 17:19:37,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:37,757 INFO L495 AbstractCegarLoop]: Abstraction has 162313 states and 253530 transitions. [2022-10-15 17:19:37,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 162313 states and 253530 transitions. [2022-10-15 17:19:37,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 17:19:37,764 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:37,765 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:37,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:19:37,765 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:37,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:37,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1189404419, now seen corresponding path program 1 times [2022-10-15 17:19:37,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:37,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178806135] [2022-10-15 17:19:37,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:37,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:38,790 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:19:38,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:38,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178806135] [2022-10-15 17:19:38,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178806135] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:38,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:38,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:19:38,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404861131] [2022-10-15 17:19:38,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:38,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:19:38,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:38,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:19:38,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:19:38,794 INFO L87 Difference]: Start difference. First operand 162313 states and 253530 transitions. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:40,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:40,711 INFO L93 Difference]: Finished difference Result 372761 states and 583476 transitions. [2022-10-15 17:19:40,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:19:40,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 0 states have call successors, (0), 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 177 [2022-10-15 17:19:40,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:41,424 INFO L225 Difference]: With dead ends: 372761 [2022-10-15 17:19:41,424 INFO L226 Difference]: Without dead ends: 372761 [2022-10-15 17:19:41,424 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 17:19:41,425 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 1146 mSDsluCounter, 2117 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:41,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 2808 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:42,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372761 states. [2022-10-15 17:19:46,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372761 to 261685. [2022-10-15 17:19:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261685 states, 261684 states have (on average 1.56024059552743) internal successors, (408290), 261684 states have internal predecessors, (408290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261685 states to 261685 states and 408290 transitions. [2022-10-15 17:19:47,885 INFO L78 Accepts]: Start accepts. Automaton has 261685 states and 408290 transitions. Word has length 177 [2022-10-15 17:19:47,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:47,886 INFO L495 AbstractCegarLoop]: Abstraction has 261685 states and 408290 transitions. [2022-10-15 17:19:47,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:47,886 INFO L276 IsEmpty]: Start isEmpty. Operand 261685 states and 408290 transitions. [2022-10-15 17:19:47,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-15 17:19:47,894 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:47,895 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:47,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:19:47,895 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:47,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:47,896 INFO L85 PathProgramCache]: Analyzing trace with hash 934459271, now seen corresponding path program 1 times [2022-10-15 17:19:47,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:47,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500192373] [2022-10-15 17:19:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:47,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:19:48,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:48,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500192373] [2022-10-15 17:19:48,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500192373] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:48,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:48,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:19:48,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527344625] [2022-10-15 17:19:48,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:48,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:19:48,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:48,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:19:48,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:19:48,251 INFO L87 Difference]: Start difference. First operand 261685 states and 408290 transitions. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:50,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:50,804 INFO L93 Difference]: Finished difference Result 429993 states and 673768 transitions. [2022-10-15 17:19:50,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:19:50,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 0 states have call successors, (0), 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 177 [2022-10-15 17:19:50,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted.