/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 03:43:46,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 03:43:46,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 03:43:46,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 03:43:46,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 03:43:46,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 03:43:46,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 03:43:46,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 03:43:46,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 03:43:46,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 03:43:46,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 03:43:46,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 03:43:46,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 03:43:46,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 03:43:46,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 03:43:46,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 03:43:46,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 03:43:46,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 03:43:46,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 03:43:46,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 03:43:46,850 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 [2022-10-16 03:43:46,904 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 03:43:46,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 03:43:46,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 03:43:46,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 03:43:46,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 03:43:46,907 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 03:43:46,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 03:43:46,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 03:43:46,910 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 03:43:46,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 03:43:46,911 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 03:43:46,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 03:43:46,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 03:43:46,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 03:43:46,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 03:43:46,912 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 03:43:46,913 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 03:43:46,913 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 03:43:46,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 03:43:46,913 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 03:43:46,913 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 03:43:46,914 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 03:43:46,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 03:43:46,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 03:43:46,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 03:43:46,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:43:46,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 03:43:46,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 03:43:46,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 03:43:46,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 03:43:46,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 03:43:47,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 03:43:47,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 03:43:47,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 03:43:47,311 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 03:43:47,311 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 03:43:47,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-16 03:43:47,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94f32170/78f427e9d27d4642ad59edf34317b32a/FLAG978088f92 [2022-10-16 03:43:48,072 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 03:43:48,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-16 03:43:48,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94f32170/78f427e9d27d4642ad59edf34317b32a/FLAG978088f92 [2022-10-16 03:43:48,370 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d94f32170/78f427e9d27d4642ad59edf34317b32a [2022-10-16 03:43:48,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 03:43:48,381 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 03:43:48,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 03:43:48,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 03:43:48,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 03:43:48,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17183e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48, skipping insertion in model container [2022-10-16 03:43:48,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 03:43:48,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 03:43:48,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[4105,4118] [2022-10-16 03:43:48,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:43:48,669 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 03:43:48,705 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[4105,4118] [2022-10-16 03:43:48,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:43:48,743 INFO L208 MainTranslator]: Completed translation [2022-10-16 03:43:48,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48 WrapperNode [2022-10-16 03:43:48,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 03:43:48,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 03:43:48,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 03:43:48,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 03:43:48,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,836 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 266 [2022-10-16 03:43:48,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 03:43:48,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 03:43:48,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 03:43:48,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 03:43:48,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,898 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 03:43:48,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 03:43:48,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 03:43:48,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 03:43:48,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48" (1/1) ... [2022-10-16 03:43:48,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:43:48,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:43:48,954 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) [2022-10-16 03:43:48,966 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 [2022-10-16 03:43:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 03:43:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 03:43:49,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 03:43:49,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 03:43:49,249 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 03:43:49,254 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 03:43:49,719 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 03:43:49,730 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 03:43:49,731 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 03:43:49,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:43:49 BoogieIcfgContainer [2022-10-16 03:43:49,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 03:43:49,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 03:43:49,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 03:43:49,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 03:43:49,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:43:48" (1/3) ... [2022-10-16 03:43:49,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c318117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:43:49, skipping insertion in model container [2022-10-16 03:43:49,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:48" (2/3) ... [2022-10-16 03:43:49,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c318117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:43:49, skipping insertion in model container [2022-10-16 03:43:49,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:43:49" (3/3) ... [2022-10-16 03:43:49,746 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-16 03:43:49,770 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 03:43:49,771 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 03:43:49,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 03:43:49,861 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;@5ed62738, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 03:43:49,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 03:43:49,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 62 states have (on average 1.7096774193548387) internal successors, (106), 64 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:49,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 03:43:49,879 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:49,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 03:43:49,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:49,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:49,887 INFO L85 PathProgramCache]: Analyzing trace with hash 933285, now seen corresponding path program 1 times [2022-10-16 03:43:49,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:49,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593743860] [2022-10-16 03:43:49,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:49,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:50,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:50,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:50,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593743860] [2022-10-16 03:43:50,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593743860] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:50,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:50,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 03:43:50,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061984122] [2022-10-16 03:43:50,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:50,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:50,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:50,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:50,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:50,187 INFO L87 Difference]: Start difference. First operand has 65 states, 62 states have (on average 1.7096774193548387) internal successors, (106), 64 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:50,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:50,220 INFO L93 Difference]: Finished difference Result 64 states and 104 transitions. [2022-10-16 03:43:50,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:50,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-10-16 03:43:50,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:50,235 INFO L225 Difference]: With dead ends: 64 [2022-10-16 03:43:50,235 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 03:43:50,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:50,242 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 101 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:50,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 103 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:50,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 03:43:50,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-16 03:43:50,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 60 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:50,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 85 transitions. [2022-10-16 03:43:50,285 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 85 transitions. Word has length 4 [2022-10-16 03:43:50,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:50,286 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 85 transitions. [2022-10-16 03:43:50,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:50,286 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 85 transitions. [2022-10-16 03:43:50,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 03:43:50,288 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:50,288 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] [2022-10-16 03:43:50,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 03:43:50,289 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:50,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:50,290 INFO L85 PathProgramCache]: Analyzing trace with hash -976687966, now seen corresponding path program 1 times [2022-10-16 03:43:50,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:50,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695308415] [2022-10-16 03:43:50,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:50,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:50,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:50,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695308415] [2022-10-16 03:43:50,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695308415] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:50,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:50,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:43:50,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349652745] [2022-10-16 03:43:50,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:50,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:50,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:50,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:50,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:50,492 INFO L87 Difference]: Start difference. First operand 61 states and 85 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:50,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:50,524 INFO L93 Difference]: Finished difference Result 95 states and 137 transitions. [2022-10-16 03:43:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:50,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2022-10-16 03:43:50,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:50,526 INFO L225 Difference]: With dead ends: 95 [2022-10-16 03:43:50,527 INFO L226 Difference]: Without dead ends: 95 [2022-10-16 03:43:50,527 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 [2022-10-16 03:43:50,529 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 51 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 180 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 [2022-10-16 03:43:50,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 180 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:50,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-10-16 03:43:50,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2022-10-16 03:43:50,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.4782608695652173) internal successors, (136), 92 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) [2022-10-16 03:43:50,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 136 transitions. [2022-10-16 03:43:50,544 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 136 transitions. Word has length 37 [2022-10-16 03:43:50,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:50,544 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 136 transitions. [2022-10-16 03:43:50,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:50,545 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 136 transitions. [2022-10-16 03:43:50,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 03:43:50,546 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:50,547 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] [2022-10-16 03:43:50,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 03:43:50,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:50,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:50,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1572742836, now seen corresponding path program 1 times [2022-10-16 03:43:50,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:50,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784281395] [2022-10-16 03:43:50,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:50,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:50,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:50,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784281395] [2022-10-16 03:43:50,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784281395] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:50,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:50,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:43:50,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212203485] [2022-10-16 03:43:50,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:50,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:50,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:50,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:50,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:50,696 INFO L87 Difference]: Start difference. First operand 93 states and 136 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:50,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:50,719 INFO L93 Difference]: Finished difference Result 151 states and 225 transitions. [2022-10-16 03:43:50,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:50,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2022-10-16 03:43:50,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:50,722 INFO L225 Difference]: With dead ends: 151 [2022-10-16 03:43:50,722 INFO L226 Difference]: Without dead ends: 151 [2022-10-16 03:43:50,723 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 [2022-10-16 03:43:50,724 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 46 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 176 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 [2022-10-16 03:43:50,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 176 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:50,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-10-16 03:43:50,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2022-10-16 03:43:50,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.5135135135135136) internal successors, (224), 148 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:50,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 224 transitions. [2022-10-16 03:43:50,743 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 224 transitions. Word has length 38 [2022-10-16 03:43:50,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:50,743 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 224 transitions. [2022-10-16 03:43:50,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:50,744 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 224 transitions. [2022-10-16 03:43:50,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 03:43:50,745 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:50,745 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] [2022-10-16 03:43:50,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 03:43:50,746 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:50,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:50,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1624580866, now seen corresponding path program 1 times [2022-10-16 03:43:50,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:50,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066248147] [2022-10-16 03:43:50,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:50,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:50,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:50,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066248147] [2022-10-16 03:43:50,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066248147] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:50,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:50,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:43:50,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151744927] [2022-10-16 03:43:50,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:50,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:50,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:50,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:50,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:50,985 INFO L87 Difference]: Start difference. First operand 149 states and 224 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:51,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:51,110 INFO L93 Difference]: Finished difference Result 799 states and 1225 transitions. [2022-10-16 03:43:51,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 03:43:51,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-10-16 03:43:51,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:51,118 INFO L225 Difference]: With dead ends: 799 [2022-10-16 03:43:51,118 INFO L226 Difference]: Without dead ends: 799 [2022-10-16 03:43:51,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 03:43:51,120 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 410 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:51,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 575 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:43:51,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2022-10-16 03:43:51,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 277. [2022-10-16 03:43:51,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 276 states have (on average 1.5217391304347827) internal successors, (420), 276 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:51,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 420 transitions. [2022-10-16 03:43:51,158 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 420 transitions. Word has length 39 [2022-10-16 03:43:51,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:51,159 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 420 transitions. [2022-10-16 03:43:51,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 420 transitions. [2022-10-16 03:43:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 03:43:51,161 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:51,161 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] [2022-10-16 03:43:51,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 03:43:51,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:51,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:51,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1224060410, now seen corresponding path program 1 times [2022-10-16 03:43:51,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:51,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854778965] [2022-10-16 03:43:51,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:51,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:51,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:51,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854778965] [2022-10-16 03:43:51,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854778965] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:51,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:51,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:43:51,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120964846] [2022-10-16 03:43:51,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:51,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:51,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:51,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:51,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:51,302 INFO L87 Difference]: Start difference. First operand 277 states and 420 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:51,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:51,333 INFO L93 Difference]: Finished difference Result 491 states and 725 transitions. [2022-10-16 03:43:51,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:51,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2022-10-16 03:43:51,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:51,342 INFO L225 Difference]: With dead ends: 491 [2022-10-16 03:43:51,343 INFO L226 Difference]: Without dead ends: 491 [2022-10-16 03:43:51,343 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 [2022-10-16 03:43:51,348 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 36 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:51,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 141 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:51,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-10-16 03:43:51,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 481. [2022-10-16 03:43:51,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.4916666666666667) internal successors, (716), 480 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:51,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 716 transitions. [2022-10-16 03:43:51,409 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 716 transitions. Word has length 41 [2022-10-16 03:43:51,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:51,409 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 716 transitions. [2022-10-16 03:43:51,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:51,410 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 716 transitions. [2022-10-16 03:43:51,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 03:43:51,413 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:51,414 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] [2022-10-16 03:43:51,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 03:43:51,414 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:51,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:51,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1245063065, now seen corresponding path program 1 times [2022-10-16 03:43:51,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:51,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584999255] [2022-10-16 03:43:51,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:51,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:51,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:51,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584999255] [2022-10-16 03:43:51,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584999255] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:51,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:51,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:43:51,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200727767] [2022-10-16 03:43:51,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:51,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:51,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:51,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:51,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:51,666 INFO L87 Difference]: Start difference. First operand 481 states and 716 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:51,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:51,730 INFO L93 Difference]: Finished difference Result 483 states and 709 transitions. [2022-10-16 03:43:51,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:43:51,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2022-10-16 03:43:51,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:51,734 INFO L225 Difference]: With dead ends: 483 [2022-10-16 03:43:51,734 INFO L226 Difference]: Without dead ends: 483 [2022-10-16 03:43:51,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:43:51,736 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 180 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:51,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 204 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-10-16 03:43:51,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 481. [2022-10-16 03:43:51,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.475) internal successors, (708), 480 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:51,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 708 transitions. [2022-10-16 03:43:51,755 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 708 transitions. Word has length 41 [2022-10-16 03:43:51,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:51,756 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 708 transitions. [2022-10-16 03:43:51,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:51,756 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 708 transitions. [2022-10-16 03:43:51,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 03:43:51,758 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:51,758 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] [2022-10-16 03:43:51,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 03:43:51,759 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:51,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:51,759 INFO L85 PathProgramCache]: Analyzing trace with hash -59660072, now seen corresponding path program 1 times [2022-10-16 03:43:51,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:51,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194774666] [2022-10-16 03:43:51,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:51,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:51,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:51,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:51,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194774666] [2022-10-16 03:43:51,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194774666] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:51,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:51,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:43:51,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064380225] [2022-10-16 03:43:51,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:51,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:51,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:51,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:51,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:51,884 INFO L87 Difference]: Start difference. First operand 481 states and 708 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:51,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:51,946 INFO L93 Difference]: Finished difference Result 481 states and 692 transitions. [2022-10-16 03:43:51,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:43:51,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2022-10-16 03:43:51,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:51,951 INFO L225 Difference]: With dead ends: 481 [2022-10-16 03:43:51,954 INFO L226 Difference]: Without dead ends: 481 [2022-10-16 03:43:51,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:43:51,959 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 220 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:51,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 56 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:51,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-10-16 03:43:51,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2022-10-16 03:43:51,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.4416666666666667) internal successors, (692), 480 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:51,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 692 transitions. [2022-10-16 03:43:51,981 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 692 transitions. Word has length 42 [2022-10-16 03:43:51,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:51,981 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 692 transitions. [2022-10-16 03:43:51,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:51,982 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 692 transitions. [2022-10-16 03:43:51,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 03:43:51,990 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:51,990 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] [2022-10-16 03:43:51,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 03:43:51,991 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:51,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:51,992 INFO L85 PathProgramCache]: Analyzing trace with hash 68425235, now seen corresponding path program 1 times [2022-10-16 03:43:51,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:51,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607420376] [2022-10-16 03:43:51,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:51,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:52,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:52,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:52,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607420376] [2022-10-16 03:43:52,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607420376] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:52,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:52,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:43:52,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671987073] [2022-10-16 03:43:52,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:52,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:52,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:52,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:52,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:52,148 INFO L87 Difference]: Start difference. First operand 481 states and 692 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:52,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:52,220 INFO L93 Difference]: Finished difference Result 481 states and 684 transitions. [2022-10-16 03:43:52,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:43:52,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2022-10-16 03:43:52,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:52,224 INFO L225 Difference]: With dead ends: 481 [2022-10-16 03:43:52,224 INFO L226 Difference]: Without dead ends: 481 [2022-10-16 03:43:52,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:43:52,225 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 204 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:52,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 64 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:52,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-10-16 03:43:52,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2022-10-16 03:43:52,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.425) internal successors, (684), 480 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:52,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 684 transitions. [2022-10-16 03:43:52,238 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 684 transitions. Word has length 42 [2022-10-16 03:43:52,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:52,239 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 684 transitions. [2022-10-16 03:43:52,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:52,239 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 684 transitions. [2022-10-16 03:43:52,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 03:43:52,240 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:52,240 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] [2022-10-16 03:43:52,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 03:43:52,241 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:52,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:52,241 INFO L85 PathProgramCache]: Analyzing trace with hash 933957624, now seen corresponding path program 1 times [2022-10-16 03:43:52,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:52,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982197637] [2022-10-16 03:43:52,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:52,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:52,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:52,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:52,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982197637] [2022-10-16 03:43:52,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982197637] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:52,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:52,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:43:52,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940430699] [2022-10-16 03:43:52,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:52,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:52,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:52,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:52,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:52,500 INFO L87 Difference]: Start difference. First operand 481 states and 684 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:52,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:52,541 INFO L93 Difference]: Finished difference Result 814 states and 1150 transitions. [2022-10-16 03:43:52,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:43:52,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2022-10-16 03:43:52,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:52,546 INFO L225 Difference]: With dead ends: 814 [2022-10-16 03:43:52,546 INFO L226 Difference]: Without dead ends: 814 [2022-10-16 03:43:52,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:43:52,548 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 112 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:52,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 403 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:52,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-10-16 03:43:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 497. [2022-10-16 03:43:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.403225806451613) internal successors, (696), 496 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:52,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 696 transitions. [2022-10-16 03:43:52,564 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 696 transitions. Word has length 42 [2022-10-16 03:43:52,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:52,564 INFO L495 AbstractCegarLoop]: Abstraction has 497 states and 696 transitions. [2022-10-16 03:43:52,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 696 transitions. [2022-10-16 03:43:52,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 03:43:52,565 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:52,566 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] [2022-10-16 03:43:52,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 03:43:52,566 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:52,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:52,567 INFO L85 PathProgramCache]: Analyzing trace with hash 883353381, now seen corresponding path program 1 times [2022-10-16 03:43:52,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:52,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476946101] [2022-10-16 03:43:52,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:52,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:52,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:52,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:52,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476946101] [2022-10-16 03:43:52,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476946101] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:52,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:52,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:43:52,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74954700] [2022-10-16 03:43:52,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:52,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:52,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:52,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:52,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:52,626 INFO L87 Difference]: Start difference. First operand 497 states and 696 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:52,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:52,650 INFO L93 Difference]: Finished difference Result 693 states and 971 transitions. [2022-10-16 03:43:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:52,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2022-10-16 03:43:52,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:52,657 INFO L225 Difference]: With dead ends: 693 [2022-10-16 03:43:52,657 INFO L226 Difference]: Without dead ends: 693 [2022-10-16 03:43:52,658 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 [2022-10-16 03:43:52,659 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 51 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 184 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 [2022-10-16 03:43:52,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 184 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:52,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-10-16 03:43:52,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 691. [2022-10-16 03:43:52,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 690 states have (on average 1.4057971014492754) internal successors, (970), 690 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 970 transitions. [2022-10-16 03:43:52,676 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 970 transitions. Word has length 42 [2022-10-16 03:43:52,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:52,677 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 970 transitions. [2022-10-16 03:43:52,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:52,677 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 970 transitions. [2022-10-16 03:43:52,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 03:43:52,678 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:52,679 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:43:52,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 03:43:52,679 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:52,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:52,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1515661308, now seen corresponding path program 1 times [2022-10-16 03:43:52,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:52,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607260761] [2022-10-16 03:43:52,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:52,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:52,829 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 03:43:52,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:52,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607260761] [2022-10-16 03:43:52,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607260761] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:52,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:52,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:43:52,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728887100] [2022-10-16 03:43:52,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:52,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:52,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:52,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:52,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:52,832 INFO L87 Difference]: Start difference. First operand 691 states and 970 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:52,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:52,896 INFO L93 Difference]: Finished difference Result 2165 states and 3039 transitions. [2022-10-16 03:43:52,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:43:52,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-10-16 03:43:52,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:52,907 INFO L225 Difference]: With dead ends: 2165 [2022-10-16 03:43:52,908 INFO L226 Difference]: Without dead ends: 2165 [2022-10-16 03:43:52,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:43:52,909 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 226 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:52,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 334 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:52,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2022-10-16 03:43:52,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 1359. [2022-10-16 03:43:52,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1358 states have (on average 1.4035346097201766) internal successors, (1906), 1358 states have internal predecessors, (1906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1906 transitions. [2022-10-16 03:43:52,960 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1906 transitions. Word has length 61 [2022-10-16 03:43:52,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:52,961 INFO L495 AbstractCegarLoop]: Abstraction has 1359 states and 1906 transitions. [2022-10-16 03:43:52,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:52,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1906 transitions. [2022-10-16 03:43:52,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 03:43:52,962 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:52,963 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:43:52,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 03:43:52,963 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:52,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:52,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1625359882, now seen corresponding path program 1 times [2022-10-16 03:43:52,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:52,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598773621] [2022-10-16 03:43:52,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:52,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:53,095 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 03:43:53,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:53,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598773621] [2022-10-16 03:43:53,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598773621] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:53,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:53,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:43:53,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904063992] [2022-10-16 03:43:53,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:53,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:53,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:53,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:53,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:53,098 INFO L87 Difference]: Start difference. First operand 1359 states and 1906 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:53,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:53,171 INFO L93 Difference]: Finished difference Result 2833 states and 3975 transitions. [2022-10-16 03:43:53,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:43:53,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-10-16 03:43:53,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:53,187 INFO L225 Difference]: With dead ends: 2833 [2022-10-16 03:43:53,187 INFO L226 Difference]: Without dead ends: 2833 [2022-10-16 03:43:53,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:43:53,189 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 220 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:53,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 366 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:53,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2022-10-16 03:43:53,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 2363. [2022-10-16 03:43:53,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2362 states have (on average 1.397121083827265) internal successors, (3300), 2362 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:53,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3300 transitions. [2022-10-16 03:43:53,268 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3300 transitions. Word has length 61 [2022-10-16 03:43:53,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:53,268 INFO L495 AbstractCegarLoop]: Abstraction has 2363 states and 3300 transitions. [2022-10-16 03:43:53,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:53,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3300 transitions. [2022-10-16 03:43:53,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 03:43:53,270 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:53,270 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:43:53,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 03:43:53,270 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:53,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:53,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2114297975, now seen corresponding path program 1 times [2022-10-16 03:43:53,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:53,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285231627] [2022-10-16 03:43:53,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:53,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:53,386 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:43:53,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:53,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285231627] [2022-10-16 03:43:53,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285231627] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:53,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:53,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:43:53,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076063181] [2022-10-16 03:43:53,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:53,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:53,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:53,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:53,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:53,388 INFO L87 Difference]: Start difference. First operand 2363 states and 3300 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:53,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:53,467 INFO L93 Difference]: Finished difference Result 3297 states and 4639 transitions. [2022-10-16 03:43:53,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:43:53,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 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 62 [2022-10-16 03:43:53,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:53,485 INFO L225 Difference]: With dead ends: 3297 [2022-10-16 03:43:53,485 INFO L226 Difference]: Without dead ends: 3297 [2022-10-16 03:43:53,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:43:53,486 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 210 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:53,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 353 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:53,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2022-10-16 03:43:53,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2827. [2022-10-16 03:43:53,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2827 states, 2826 states have (on average 1.402689313517339) internal successors, (3964), 2826 states have internal predecessors, (3964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:53,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 3964 transitions. [2022-10-16 03:43:53,560 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 3964 transitions. Word has length 62 [2022-10-16 03:43:53,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:53,560 INFO L495 AbstractCegarLoop]: Abstraction has 2827 states and 3964 transitions. [2022-10-16 03:43:53,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:53,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 3964 transitions. [2022-10-16 03:43:53,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 03:43:53,562 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:53,562 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:43:53,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 03:43:53,563 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:53,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:53,563 INFO L85 PathProgramCache]: Analyzing trace with hash -344216809, now seen corresponding path program 1 times [2022-10-16 03:43:53,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:53,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636535018] [2022-10-16 03:43:53,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:53,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:53,672 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:53,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:53,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636535018] [2022-10-16 03:43:53,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636535018] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:53,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:53,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:43:53,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486748682] [2022-10-16 03:43:53,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:53,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:53,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:53,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:53,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:53,674 INFO L87 Difference]: Start difference. First operand 2827 states and 3964 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:53,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:53,696 INFO L93 Difference]: Finished difference Result 2139 states and 3005 transitions. [2022-10-16 03:43:53,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:53,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-10-16 03:43:53,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:53,707 INFO L225 Difference]: With dead ends: 2139 [2022-10-16 03:43:53,707 INFO L226 Difference]: Without dead ends: 2139 [2022-10-16 03:43:53,708 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 [2022-10-16 03:43:53,708 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 39 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:53,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 174 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:53,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2022-10-16 03:43:53,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2137. [2022-10-16 03:43:53,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2137 states, 2136 states have (on average 1.4063670411985019) internal successors, (3004), 2136 states have internal predecessors, (3004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:53,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3004 transitions. [2022-10-16 03:43:53,762 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3004 transitions. Word has length 63 [2022-10-16 03:43:53,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:53,762 INFO L495 AbstractCegarLoop]: Abstraction has 2137 states and 3004 transitions. [2022-10-16 03:43:53,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:43:53,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3004 transitions. [2022-10-16 03:43:53,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 03:43:53,764 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:53,764 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:43:53,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 03:43:53,764 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:53,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:53,765 INFO L85 PathProgramCache]: Analyzing trace with hash -2058333971, now seen corresponding path program 1 times [2022-10-16 03:43:53,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:53,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836617178] [2022-10-16 03:43:53,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:53,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:54,339 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:54,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:54,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836617178] [2022-10-16 03:43:54,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836617178] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 03:43:54,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531183016] [2022-10-16 03:43:54,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:54,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 03:43:54,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:43:54,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 03:43:54,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 03:43:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:54,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 03:43:54,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 03:43:54,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:43:54,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 03:43:54,999 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:43:54,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531183016] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 03:43:54,999 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 03:43:54,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 18 [2022-10-16 03:43:55,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583986450] [2022-10-16 03:43:55,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 03:43:55,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 03:43:55,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:55,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 03:43:55,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2022-10-16 03:43:55,003 INFO L87 Difference]: Start difference. First operand 2137 states and 3004 transitions. Second operand has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:44:00,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:44:00,034 INFO L93 Difference]: Finished difference Result 23002 states and 30227 transitions. [2022-10-16 03:44:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-10-16 03:44:00,034 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 0 states have call successors, (0), 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 63 [2022-10-16 03:44:00,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:44:00,124 INFO L225 Difference]: With dead ends: 23002 [2022-10-16 03:44:00,124 INFO L226 Difference]: Without dead ends: 23002 [2022-10-16 03:44:00,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5482 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2128, Invalid=12152, Unknown=0, NotChecked=0, Total=14280 [2022-10-16 03:44:00,132 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 3935 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3935 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 03:44:00,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3935 Valid, 1104 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 03:44:00,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23002 states. [2022-10-16 03:44:00,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23002 to 11203. [2022-10-16 03:44:00,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11203 states, 11202 states have (on average 1.343420817711123) internal successors, (15049), 11202 states have internal predecessors, (15049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:44:00,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11203 states to 11203 states and 15049 transitions. [2022-10-16 03:44:00,510 INFO L78 Accepts]: Start accepts. Automaton has 11203 states and 15049 transitions. Word has length 63 [2022-10-16 03:44:00,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:44:00,510 INFO L495 AbstractCegarLoop]: Abstraction has 11203 states and 15049 transitions. [2022-10-16 03:44:00,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.722222222222221) internal successors, (175), 18 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:44:00,511 INFO L276 IsEmpty]: Start isEmpty. Operand 11203 states and 15049 transitions. [2022-10-16 03:44:00,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 03:44:00,512 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:44:00,512 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:44:00,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 03:44:00,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 03:44:00,726 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:44:00,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:44:00,727 INFO L85 PathProgramCache]: Analyzing trace with hash 794642143, now seen corresponding path program 1 times [2022-10-16 03:44:00,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:44:00,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236878728] [2022-10-16 03:44:00,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:44:00,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:44:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:44:01,120 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:44:01,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:44:01,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236878728] [2022-10-16 03:44:01,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236878728] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 03:44:01,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254745423] [2022-10-16 03:44:01,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:44:01,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 03:44:01,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:44:01,123 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 03:44:01,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 03:44:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:44:01,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 03:44:01,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 03:44:01,816 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:44:01,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 03:44:02,552 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:44:02,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254745423] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 03:44:02,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 03:44:02,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2022-10-16 03:44:02,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606418548] [2022-10-16 03:44:02,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 03:44:02,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 03:44:02,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:44:02,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 03:44:02,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2022-10-16 03:44:02,555 INFO L87 Difference]: Start difference. First operand 11203 states and 15049 transitions. Second operand has 21 states, 21 states have (on average 6.761904761904762) internal successors, (142), 20 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:44:03,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:44:03,996 INFO L93 Difference]: Finished difference Result 47057 states and 61621 transitions. [2022-10-16 03:44:03,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 03:44:03,997 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.761904761904762) internal successors, (142), 20 states have internal predecessors, (142), 0 states have call successors, (0), 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 64 [2022-10-16 03:44:03,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:44:04,083 INFO L225 Difference]: With dead ends: 47057 [2022-10-16 03:44:04,083 INFO L226 Difference]: Without dead ends: 47057 [2022-10-16 03:44:04,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 114 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=631, Invalid=1721, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 03:44:04,085 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 1290 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 03:44:04,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 799 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 03:44:04,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47057 states. [2022-10-16 03:44:04,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47057 to 22514. [2022-10-16 03:44:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22514 states, 22513 states have (on average 1.321147781281926) internal successors, (29743), 22513 states have internal predecessors, (29743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:44:04,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22514 states to 22514 states and 29743 transitions. [2022-10-16 03:44:04,936 INFO L78 Accepts]: Start accepts. Automaton has 22514 states and 29743 transitions. Word has length 64 [2022-10-16 03:44:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:44:04,936 INFO L495 AbstractCegarLoop]: Abstraction has 22514 states and 29743 transitions. [2022-10-16 03:44:04,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.761904761904762) internal successors, (142), 20 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:44:04,937 INFO L276 IsEmpty]: Start isEmpty. Operand 22514 states and 29743 transitions. [2022-10-16 03:44:04,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 03:44:04,938 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:44:04,939 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:44:04,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 03:44:05,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 03:44:05,154 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:44:05,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:44:05,155 INFO L85 PathProgramCache]: Analyzing trace with hash 2139757523, now seen corresponding path program 1 times [2022-10-16 03:44:05,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:44:05,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145752916] [2022-10-16 03:44:05,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:44:05,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:44:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:44:05,659 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:44:05,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:44:05,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145752916] [2022-10-16 03:44:05,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145752916] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 03:44:05,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805974215] [2022-10-16 03:44:05,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:44:05,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 03:44:05,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:44:05,661 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 03:44:05,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 03:44:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:44:05,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 03:44:05,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 03:44:06,974 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:44:06,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 03:44:08,033 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:44:08,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805974215] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 03:44:08,034 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 03:44:08,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2022-10-16 03:44:08,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344287306] [2022-10-16 03:44:08,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 03:44:08,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 03:44:08,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:44:08,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 03:44:08,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2022-10-16 03:44:08,038 INFO L87 Difference]: Start difference. First operand 22514 states and 29743 transitions. Second operand has 32 states, 32 states have (on average 5.46875) internal successors, (175), 32 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:40,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:40,037 INFO L93 Difference]: Finished difference Result 285267 states and 366533 transitions. [2022-10-16 03:45:40,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 670 states. [2022-10-16 03:45:40,037 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 5.46875) internal successors, (175), 32 states have internal predecessors, (175), 0 states have call successors, (0), 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 64 [2022-10-16 03:45:40,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:40,587 INFO L225 Difference]: With dead ends: 285267 [2022-10-16 03:45:40,588 INFO L226 Difference]: Without dead ends: 285267 [2022-10-16 03:45:40,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 698 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243981 ImplicationChecksByTransitivity, 83.8s TimeCoverageRelationStatistics Valid=48105, Invalid=441195, Unknown=0, NotChecked=0, Total=489300 [2022-10-16 03:45:40,658 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 21131 mSDsluCounter, 4162 mSDsCounter, 0 mSdLazyCounter, 4925 mSolverCounterSat, 1832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21131 SdHoareTripleChecker+Valid, 4402 SdHoareTripleChecker+Invalid, 6757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1832 IncrementalHoareTripleChecker+Valid, 4925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:40,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21131 Valid, 4402 Invalid, 6757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1832 Valid, 4925 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-10-16 03:45:41,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285267 states. [2022-10-16 03:45:43,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285267 to 52905. [2022-10-16 03:45:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52905 states, 52904 states have (on average 1.3135490700136097) internal successors, (69492), 52904 states have internal predecessors, (69492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:44,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52905 states to 52905 states and 69492 transitions. [2022-10-16 03:45:44,180 INFO L78 Accepts]: Start accepts. Automaton has 52905 states and 69492 transitions. Word has length 64 [2022-10-16 03:45:44,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:44,181 INFO L495 AbstractCegarLoop]: Abstraction has 52905 states and 69492 transitions. [2022-10-16 03:45:44,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.46875) internal successors, (175), 32 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:44,181 INFO L276 IsEmpty]: Start isEmpty. Operand 52905 states and 69492 transitions. [2022-10-16 03:45:44,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 03:45:44,183 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:44,183 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:45:44,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 03:45:44,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 03:45:44,398 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:44,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:44,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1508040122, now seen corresponding path program 1 times [2022-10-16 03:45:44,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:44,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28589884] [2022-10-16 03:45:44,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:44,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:44,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:44,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28589884] [2022-10-16 03:45:44,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28589884] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:45:44,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:45:44,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:45:44,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946197795] [2022-10-16 03:45:44,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:45:44,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:45:44,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:44,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:45:44,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:45:44,497 INFO L87 Difference]: Start difference. First operand 52905 states and 69492 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:44,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:45:44,582 INFO L93 Difference]: Finished difference Result 31119 states and 40156 transitions. [2022-10-16 03:45:44,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:45:44,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-10-16 03:45:44,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:45:44,618 INFO L225 Difference]: With dead ends: 31119 [2022-10-16 03:45:44,619 INFO L226 Difference]: Without dead ends: 31119 [2022-10-16 03:45:44,619 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 [2022-10-16 03:45:44,620 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 30 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:45:44,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 159 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:45:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31119 states. [2022-10-16 03:45:45,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31119 to 31117. [2022-10-16 03:45:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31117 states, 31116 states have (on average 1.2904936367142306) internal successors, (40155), 31116 states have internal predecessors, (40155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:45,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31117 states to 31117 states and 40155 transitions. [2022-10-16 03:45:45,180 INFO L78 Accepts]: Start accepts. Automaton has 31117 states and 40155 transitions. Word has length 65 [2022-10-16 03:45:45,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:45:45,180 INFO L495 AbstractCegarLoop]: Abstraction has 31117 states and 40155 transitions. [2022-10-16 03:45:45,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:45:45,181 INFO L276 IsEmpty]: Start isEmpty. Operand 31117 states and 40155 transitions. [2022-10-16 03:45:45,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 03:45:45,182 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:45:45,183 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:45:45,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 03:45:45,183 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:45:45,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:45:45,184 INFO L85 PathProgramCache]: Analyzing trace with hash 76199226, now seen corresponding path program 1 times [2022-10-16 03:45:45,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:45:45,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422838181] [2022-10-16 03:45:45,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:45,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:45:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:46,250 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:46,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:45:46,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422838181] [2022-10-16 03:45:46,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422838181] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 03:45:46,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793198125] [2022-10-16 03:45:46,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:45:46,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 03:45:46,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:45:46,363 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 03:45:46,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 03:45:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:45:46,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 03:45:46,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 03:45:48,432 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:48,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 03:45:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:45:50,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793198125] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 03:45:50,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 03:45:50,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 16] total 42 [2022-10-16 03:45:50,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412323875] [2022-10-16 03:45:50,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 03:45:50,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-16 03:45:50,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:45:50,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-16 03:45:50,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1573, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 03:45:50,369 INFO L87 Difference]: Start difference. First operand 31117 states and 40155 transitions. Second operand has 42 states, 42 states have (on average 4.309523809523809) internal successors, (181), 42 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)