/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:39:02,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:39:02,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:39:02,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 02:39:02,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 02:39:02,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 02:39:02,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 02:39:02,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 02:39:02,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 02:39:02,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 02:39:02,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 02:39:02,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 02:39:02,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 02:39:02,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 02:39:02,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 02:39:02,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 02:39:02,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 02:39:02,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 02:39:02,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 02:39:02,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 02:39:02,763 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 02:39:02,791 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:39:02,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:39:02,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:39:02,792 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:39:02,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:39:02,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:39:02,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:39:02,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:39:02,794 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:39:02,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:39:02,795 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:39:02,795 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:39:02,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:39:02,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:39:02,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:39:02,796 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:39:02,796 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:39:02,796 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:39:02,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:39:02,796 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:39:02,797 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:39:02,797 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:39:02,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:39:02,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:39:02,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:39:02,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:39:02,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:39:02,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:39:02,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:39:02,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:39:02,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:39:03,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:39:03,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:39:03,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:39:03,191 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:39:03,192 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:39:03,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c [2022-10-16 02:39:03,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/371aded19/6b5f7be191564c7c8141345b37cba519/FLAG16177d806 [2022-10-16 02:39:03,906 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:39:03,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c [2022-10-16 02:39:03,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/371aded19/6b5f7be191564c7c8141345b37cba519/FLAG16177d806 [2022-10-16 02:39:04,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/371aded19/6b5f7be191564c7c8141345b37cba519 [2022-10-16 02:39:04,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:39:04,259 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:39:04,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:39:04,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:39:04,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:39:04,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487282e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04, skipping insertion in model container [2022-10-16 02:39:04,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:39:04,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:39:04,681 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c[9376,9389] [2022-10-16 02:39:04,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:39:04,694 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:39:04,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c[9376,9389] [2022-10-16 02:39:04,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:39:04,758 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:39:04,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04 WrapperNode [2022-10-16 02:39:04,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:39:04,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:39:04,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:39:04,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:39:04,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,827 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 313 [2022-10-16 02:39:04,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:39:04,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:39:04,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:39:04,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:39:04,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,860 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:39:04,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:39:04,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:39:04,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:39:04,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (1/1) ... [2022-10-16 02:39:04,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:39:04,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:39:04,915 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 02:39:04,940 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 02:39:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:39:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:39:04,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:39:04,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:39:05,138 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:39:05,141 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:39:05,782 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:39:05,797 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:39:05,797 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:39:05,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:39:05 BoogieIcfgContainer [2022-10-16 02:39:05,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:39:05,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:39:05,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:39:05,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:39:05,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:39:04" (1/3) ... [2022-10-16 02:39:05,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375b2e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:39:05, skipping insertion in model container [2022-10-16 02:39:05,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:39:04" (2/3) ... [2022-10-16 02:39:05,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375b2e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:39:05, skipping insertion in model container [2022-10-16 02:39:05,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:39:05" (3/3) ... [2022-10-16 02:39:05,812 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c [2022-10-16 02:39:05,833 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:39:05,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:39:05,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:39:05,922 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;@4cc8e671, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:39:05,922 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:39:05,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 97 states have (on average 1.7010309278350515) internal successors, (165), 99 states have internal predecessors, (165), 0 states have call successors, (0), 0 states 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 02:39:05,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 02:39:05,937 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:05,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:05,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:05,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:05,948 INFO L85 PathProgramCache]: Analyzing trace with hash -82473583, now seen corresponding path program 1 times [2022-10-16 02:39:05,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:05,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18230528] [2022-10-16 02:39:05,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:05,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:06,256 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 02:39:06,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:06,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18230528] [2022-10-16 02:39:06,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18230528] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:06,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:06,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:39:06,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168799614] [2022-10-16 02:39:06,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:06,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 02:39:06,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:06,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 02:39:06,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:39:06,299 INFO L87 Difference]: Start difference. First operand has 100 states, 97 states have (on average 1.7010309278350515) internal successors, (165), 99 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:06,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:06,323 INFO L93 Difference]: Finished difference Result 95 states and 157 transitions. [2022-10-16 02:39:06,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 02:39:06,328 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 02:39:06,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:06,338 INFO L225 Difference]: With dead ends: 95 [2022-10-16 02:39:06,338 INFO L226 Difference]: Without dead ends: 95 [2022-10-16 02:39:06,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:39:06,345 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:06,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:06,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-10-16 02:39:06,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-10-16 02:39:06,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.6702127659574468) internal successors, (157), 94 states have internal predecessors, (157), 0 states have call successors, (0), 0 states 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 02:39:06,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 157 transitions. [2022-10-16 02:39:06,388 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 157 transitions. Word has length 10 [2022-10-16 02:39:06,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:06,389 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 157 transitions. [2022-10-16 02:39:06,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:06,389 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 157 transitions. [2022-10-16 02:39:06,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 02:39:06,392 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:06,393 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] [2022-10-16 02:39:06,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:39:06,393 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:06,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:06,394 INFO L85 PathProgramCache]: Analyzing trace with hash -241791525, now seen corresponding path program 1 times [2022-10-16 02:39:06,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:06,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936170712] [2022-10-16 02:39:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:06,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:06,679 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 02:39:06,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:06,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936170712] [2022-10-16 02:39:06,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936170712] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:06,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:06,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:39:06,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350657698] [2022-10-16 02:39:06,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:06,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:39:06,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:06,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:39:06,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:39:06,685 INFO L87 Difference]: Start difference. First operand 95 states and 157 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states 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 02:39:06,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:06,760 INFO L93 Difference]: Finished difference Result 98 states and 159 transitions. [2022-10-16 02:39:06,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:39:06,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-10-16 02:39:06,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:06,763 INFO L225 Difference]: With dead ends: 98 [2022-10-16 02:39:06,763 INFO L226 Difference]: Without dead ends: 95 [2022-10-16 02:39:06,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:39:06,766 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 3 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:06,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 593 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:06,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-10-16 02:39:06,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-10-16 02:39:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.4148936170212767) internal successors, (133), 94 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:06,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 133 transitions. [2022-10-16 02:39:06,779 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 133 transitions. Word has length 29 [2022-10-16 02:39:06,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:06,779 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 133 transitions. [2022-10-16 02:39:06,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states 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 02:39:06,780 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 133 transitions. [2022-10-16 02:39:06,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 02:39:06,782 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:06,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:06,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:39:06,783 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:06,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:06,784 INFO L85 PathProgramCache]: Analyzing trace with hash 747245012, now seen corresponding path program 1 times [2022-10-16 02:39:06,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:06,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515059617] [2022-10-16 02:39:06,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:06,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:06,909 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 02:39:06,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:06,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515059617] [2022-10-16 02:39:06,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515059617] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:06,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:06,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:39:06,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54359206] [2022-10-16 02:39:06,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:06,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:39:06,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:06,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:39:06,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:06,914 INFO L87 Difference]: Start difference. First operand 95 states and 133 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 02:39:06,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:06,948 INFO L93 Difference]: Finished difference Result 148 states and 215 transitions. [2022-10-16 02:39:06,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:39:06,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-10-16 02:39:06,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:06,951 INFO L225 Difference]: With dead ends: 148 [2022-10-16 02:39:06,955 INFO L226 Difference]: Without dead ends: 148 [2022-10-16 02:39:06,955 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 02:39:06,958 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 87 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 289 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 02:39:06,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 289 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:06,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-10-16 02:39:06,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2022-10-16 02:39:06,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.4758620689655173) internal successors, (214), 145 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 02:39:06,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 214 transitions. [2022-10-16 02:39:06,990 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 214 transitions. Word has length 52 [2022-10-16 02:39:06,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:06,991 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 214 transitions. [2022-10-16 02:39:06,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states 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 02:39:06,992 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 214 transitions. [2022-10-16 02:39:06,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 02:39:06,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:06,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:06,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:39:06,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:06,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:06,997 INFO L85 PathProgramCache]: Analyzing trace with hash 396878357, now seen corresponding path program 1 times [2022-10-16 02:39:06,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:06,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155294567] [2022-10-16 02:39:06,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:06,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:07,096 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 02:39:07,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:07,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155294567] [2022-10-16 02:39:07,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155294567] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:07,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:07,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:39:07,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147431428] [2022-10-16 02:39:07,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:07,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:39:07,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:07,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:39:07,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:07,100 INFO L87 Difference]: Start difference. First operand 146 states and 214 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:07,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:07,123 INFO L93 Difference]: Finished difference Result 238 states and 356 transitions. [2022-10-16 02:39:07,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:39:07,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-16 02:39:07,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:07,127 INFO L225 Difference]: With dead ends: 238 [2022-10-16 02:39:07,127 INFO L226 Difference]: Without dead ends: 238 [2022-10-16 02:39:07,127 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 02:39:07,129 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 82 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 280 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 02:39:07,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 280 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:07,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-10-16 02:39:07,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 236. [2022-10-16 02:39:07,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.5106382978723405) internal successors, (355), 235 states have internal predecessors, (355), 0 states have call successors, (0), 0 states 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 02:39:07,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 355 transitions. [2022-10-16 02:39:07,176 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 355 transitions. Word has length 53 [2022-10-16 02:39:07,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:07,181 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 355 transitions. [2022-10-16 02:39:07,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:07,181 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 355 transitions. [2022-10-16 02:39:07,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 02:39:07,183 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:07,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:07,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:39:07,184 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:07,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:07,188 INFO L85 PathProgramCache]: Analyzing trace with hash -778312060, now seen corresponding path program 1 times [2022-10-16 02:39:07,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:07,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564362004] [2022-10-16 02:39:07,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:07,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:07,316 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 02:39:07,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:07,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564362004] [2022-10-16 02:39:07,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564362004] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:07,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:07,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:39:07,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415290631] [2022-10-16 02:39:07,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:07,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:39:07,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:07,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:39:07,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:07,320 INFO L87 Difference]: Start difference. First operand 236 states and 355 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:07,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:07,354 INFO L93 Difference]: Finished difference Result 394 states and 596 transitions. [2022-10-16 02:39:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:39:07,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-16 02:39:07,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:07,361 INFO L225 Difference]: With dead ends: 394 [2022-10-16 02:39:07,361 INFO L226 Difference]: Without dead ends: 394 [2022-10-16 02:39:07,362 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 02:39:07,367 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 77 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 271 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 02:39:07,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 271 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:07,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-10-16 02:39:07,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 392. [2022-10-16 02:39:07,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 391 states have (on average 1.5217391304347827) internal successors, (595), 391 states have internal predecessors, (595), 0 states have call successors, (0), 0 states 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 02:39:07,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 595 transitions. [2022-10-16 02:39:07,409 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 595 transitions. Word has length 54 [2022-10-16 02:39:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:07,410 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 595 transitions. [2022-10-16 02:39:07,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:07,411 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 595 transitions. [2022-10-16 02:39:07,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 02:39:07,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:07,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:07,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:39:07,416 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:07,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:07,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1214154885, now seen corresponding path program 1 times [2022-10-16 02:39:07,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:07,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324114497] [2022-10-16 02:39:07,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:07,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:07,584 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 02:39:07,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:07,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324114497] [2022-10-16 02:39:07,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324114497] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:07,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:07,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:39:07,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645075614] [2022-10-16 02:39:07,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:07,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:39:07,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:07,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:39:07,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:39:07,589 INFO L87 Difference]: Start difference. First operand 392 states and 595 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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 02:39:07,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:07,722 INFO L93 Difference]: Finished difference Result 1840 states and 2839 transitions. [2022-10-16 02:39:07,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:39:07,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-10-16 02:39:07,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:07,734 INFO L225 Difference]: With dead ends: 1840 [2022-10-16 02:39:07,734 INFO L226 Difference]: Without dead ends: 1840 [2022-10-16 02:39:07,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:39:07,736 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 746 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:07,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 1037 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:39:07,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2022-10-16 02:39:07,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 752. [2022-10-16 02:39:07,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 751 states have (on average 1.521970705725699) internal successors, (1143), 751 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states 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 02:39:07,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1143 transitions. [2022-10-16 02:39:07,771 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1143 transitions. Word has length 55 [2022-10-16 02:39:07,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:07,771 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 1143 transitions. [2022-10-16 02:39:07,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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 02:39:07,772 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1143 transitions. [2022-10-16 02:39:07,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 02:39:07,773 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:07,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:07,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:39:07,774 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:07,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:07,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1399227554, now seen corresponding path program 1 times [2022-10-16 02:39:07,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:07,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29752223] [2022-10-16 02:39:07,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:07,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:07,951 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 02:39:07,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:07,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29752223] [2022-10-16 02:39:07,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29752223] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:07,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:07,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:39:07,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313075313] [2022-10-16 02:39:07,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:07,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:39:07,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:07,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:39:07,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:39:07,955 INFO L87 Difference]: Start difference. First operand 752 states and 1143 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:08,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:08,083 INFO L93 Difference]: Finished difference Result 2654 states and 4010 transitions. [2022-10-16 02:39:08,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:39:08,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-10-16 02:39:08,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:08,096 INFO L225 Difference]: With dead ends: 2654 [2022-10-16 02:39:08,097 INFO L226 Difference]: Without dead ends: 2654 [2022-10-16 02:39:08,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:39:08,102 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 585 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:08,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 477 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:39:08,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2022-10-16 02:39:08,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2648. [2022-10-16 02:39:08,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2648 states, 2647 states have (on average 1.5137891953154514) internal successors, (4007), 2647 states have internal predecessors, (4007), 0 states have call successors, (0), 0 states 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 02:39:08,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 4007 transitions. [2022-10-16 02:39:08,167 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 4007 transitions. Word has length 56 [2022-10-16 02:39:08,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:08,167 INFO L495 AbstractCegarLoop]: Abstraction has 2648 states and 4007 transitions. [2022-10-16 02:39:08,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:08,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 4007 transitions. [2022-10-16 02:39:08,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 02:39:08,169 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:08,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:08,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:39:08,169 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:08,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:08,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1806755418, now seen corresponding path program 1 times [2022-10-16 02:39:08,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:08,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664412094] [2022-10-16 02:39:08,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:08,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:08,472 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 02:39:08,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:08,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664412094] [2022-10-16 02:39:08,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664412094] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:08,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:08,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:39:08,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443916494] [2022-10-16 02:39:08,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:08,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:39:08,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:08,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:39:08,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:39:08,475 INFO L87 Difference]: Start difference. First operand 2648 states and 4007 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:08,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:08,559 INFO L93 Difference]: Finished difference Result 5520 states and 8175 transitions. [2022-10-16 02:39:08,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:39:08,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-10-16 02:39:08,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:08,587 INFO L225 Difference]: With dead ends: 5520 [2022-10-16 02:39:08,587 INFO L226 Difference]: Without dead ends: 5520 [2022-10-16 02:39:08,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:39:08,589 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 288 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:08,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 592 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:08,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5520 states. [2022-10-16 02:39:08,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5520 to 2840. [2022-10-16 02:39:08,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2839 states have (on average 1.4790419161676647) internal successors, (4199), 2839 states have internal predecessors, (4199), 0 states have call successors, (0), 0 states 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 02:39:08,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4199 transitions. [2022-10-16 02:39:08,679 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4199 transitions. Word has length 57 [2022-10-16 02:39:08,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:08,680 INFO L495 AbstractCegarLoop]: Abstraction has 2840 states and 4199 transitions. [2022-10-16 02:39:08,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:08,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4199 transitions. [2022-10-16 02:39:08,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 02:39:08,681 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:08,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:08,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:39:08,682 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:08,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:08,683 INFO L85 PathProgramCache]: Analyzing trace with hash 227421697, now seen corresponding path program 1 times [2022-10-16 02:39:08,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:08,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162110950] [2022-10-16 02:39:08,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:08,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:08,782 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 02:39:08,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:08,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162110950] [2022-10-16 02:39:08,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162110950] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:08,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:08,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:39:08,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950360707] [2022-10-16 02:39:08,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:08,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:39:08,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:08,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:39:08,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:08,787 INFO L87 Difference]: Start difference. First operand 2840 states and 4199 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:08,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:08,831 INFO L93 Difference]: Finished difference Result 4882 states and 7040 transitions. [2022-10-16 02:39:08,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:39:08,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-10-16 02:39:08,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:08,853 INFO L225 Difference]: With dead ends: 4882 [2022-10-16 02:39:08,853 INFO L226 Difference]: Without dead ends: 4882 [2022-10-16 02:39:08,854 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 02:39:08,856 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 67 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:08,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 231 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:08,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4882 states. [2022-10-16 02:39:08,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4882 to 4824. [2022-10-16 02:39:08,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4824 states, 4823 states have (on average 1.4478540327596932) internal successors, (6983), 4823 states have internal predecessors, (6983), 0 states have call successors, (0), 0 states 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 02:39:08,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4824 states to 4824 states and 6983 transitions. [2022-10-16 02:39:08,980 INFO L78 Accepts]: Start accepts. Automaton has 4824 states and 6983 transitions. Word has length 58 [2022-10-16 02:39:08,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:08,980 INFO L495 AbstractCegarLoop]: Abstraction has 4824 states and 6983 transitions. [2022-10-16 02:39:08,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:08,981 INFO L276 IsEmpty]: Start isEmpty. Operand 4824 states and 6983 transitions. [2022-10-16 02:39:08,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 02:39:08,984 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:08,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:08,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:39:08,985 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:08,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:08,990 INFO L85 PathProgramCache]: Analyzing trace with hash -2122531684, now seen corresponding path program 1 times [2022-10-16 02:39:08,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:08,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373141643] [2022-10-16 02:39:08,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:08,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:09,062 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 02:39:09,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:09,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373141643] [2022-10-16 02:39:09,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373141643] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:09,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:09,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:39:09,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887745213] [2022-10-16 02:39:09,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:09,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:39:09,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:09,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:39:09,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:09,065 INFO L87 Difference]: Start difference. First operand 4824 states and 6983 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:09,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:09,112 INFO L93 Difference]: Finished difference Result 6932 states and 9938 transitions. [2022-10-16 02:39:09,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:39:09,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-10-16 02:39:09,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:09,144 INFO L225 Difference]: With dead ends: 6932 [2022-10-16 02:39:09,145 INFO L226 Difference]: Without dead ends: 6932 [2022-10-16 02:39:09,145 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 02:39:09,147 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 88 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 310 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 02:39:09,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 310 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:09,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6932 states. [2022-10-16 02:39:09,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6932 to 6930. [2022-10-16 02:39:09,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6930 states, 6929 states have (on average 1.4341174772694472) internal successors, (9937), 6929 states have internal predecessors, (9937), 0 states have call successors, (0), 0 states 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 02:39:09,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6930 states to 6930 states and 9937 transitions. [2022-10-16 02:39:09,336 INFO L78 Accepts]: Start accepts. Automaton has 6930 states and 9937 transitions. Word has length 59 [2022-10-16 02:39:09,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:09,337 INFO L495 AbstractCegarLoop]: Abstraction has 6930 states and 9937 transitions. [2022-10-16 02:39:09,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:09,337 INFO L276 IsEmpty]: Start isEmpty. Operand 6930 states and 9937 transitions. [2022-10-16 02:39:09,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:39:09,344 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:09,345 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:09,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:39:09,345 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:09,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:09,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1504297558, now seen corresponding path program 1 times [2022-10-16 02:39:09,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:09,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889626588] [2022-10-16 02:39:09,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:09,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:09,459 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 02:39:09,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:09,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889626588] [2022-10-16 02:39:09,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889626588] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:09,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:09,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:39:09,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952572683] [2022-10-16 02:39:09,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:09,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:39:09,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:09,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:39:09,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:09,464 INFO L87 Difference]: Start difference. First operand 6930 states and 9937 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:39:09,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:09,537 INFO L93 Difference]: Finished difference Result 11119 states and 15692 transitions. [2022-10-16 02:39:09,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:39:09,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-10-16 02:39:09,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:09,590 INFO L225 Difference]: With dead ends: 11119 [2022-10-16 02:39:09,591 INFO L226 Difference]: Without dead ends: 11119 [2022-10-16 02:39:09,591 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 02:39:09,592 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 66 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:09,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 263 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:09,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11119 states. [2022-10-16 02:39:09,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11119 to 10545. [2022-10-16 02:39:09,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10545 states, 10544 states have (on average 1.4164453717754173) internal successors, (14935), 10544 states have internal predecessors, (14935), 0 states have call successors, (0), 0 states 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 02:39:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10545 states to 10545 states and 14935 transitions. [2022-10-16 02:39:09,949 INFO L78 Accepts]: Start accepts. Automaton has 10545 states and 14935 transitions. Word has length 82 [2022-10-16 02:39:09,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:09,950 INFO L495 AbstractCegarLoop]: Abstraction has 10545 states and 14935 transitions. [2022-10-16 02:39:09,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:39:09,951 INFO L276 IsEmpty]: Start isEmpty. Operand 10545 states and 14935 transitions. [2022-10-16 02:39:10,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:39:10,093 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:10,094 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:10,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:39:10,094 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:10,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:10,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1310211642, now seen corresponding path program 1 times [2022-10-16 02:39:10,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:10,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714571379] [2022-10-16 02:39:10,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:10,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:10,260 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:39:10,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:10,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714571379] [2022-10-16 02:39:10,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714571379] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:10,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:10,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:39:10,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859261806] [2022-10-16 02:39:10,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:10,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:39:10,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:10,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:39:10,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:39:10,264 INFO L87 Difference]: Start difference. First operand 10545 states and 14935 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:10,456 INFO L93 Difference]: Finished difference Result 18981 states and 27027 transitions. [2022-10-16 02:39:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:39:10,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-10-16 02:39:10,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:10,499 INFO L225 Difference]: With dead ends: 18981 [2022-10-16 02:39:10,499 INFO L226 Difference]: Without dead ends: 18981 [2022-10-16 02:39:10,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:39:10,500 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 634 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:10,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 756 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:39:10,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18981 states. [2022-10-16 02:39:10,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18981 to 14073. [2022-10-16 02:39:10,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14073 states, 14072 states have (on average 1.415505969300739) internal successors, (19919), 14072 states have internal predecessors, (19919), 0 states have call successors, (0), 0 states 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 02:39:10,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14073 states to 14073 states and 19919 transitions. [2022-10-16 02:39:10,927 INFO L78 Accepts]: Start accepts. Automaton has 14073 states and 19919 transitions. Word has length 82 [2022-10-16 02:39:10,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:10,927 INFO L495 AbstractCegarLoop]: Abstraction has 14073 states and 19919 transitions. [2022-10-16 02:39:10,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:10,928 INFO L276 IsEmpty]: Start isEmpty. Operand 14073 states and 19919 transitions. [2022-10-16 02:39:10,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:39:10,936 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:10,936 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:10,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:39:10,936 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:10,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:10,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1737557706, now seen corresponding path program 1 times [2022-10-16 02:39:10,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:10,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183150510] [2022-10-16 02:39:10,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:10,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:11,025 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 02:39:11,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:11,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183150510] [2022-10-16 02:39:11,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183150510] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:11,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:11,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:39:11,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542963015] [2022-10-16 02:39:11,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:11,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:39:11,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:11,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:39:11,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:11,029 INFO L87 Difference]: Start difference. First operand 14073 states and 19919 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:39:11,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:11,126 INFO L93 Difference]: Finished difference Result 17155 states and 23805 transitions. [2022-10-16 02:39:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:39:11,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-10-16 02:39:11,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:11,160 INFO L225 Difference]: With dead ends: 17155 [2022-10-16 02:39:11,160 INFO L226 Difference]: Without dead ends: 14865 [2022-10-16 02:39:11,161 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 02:39:11,161 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 69 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:11,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 292 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:11,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14865 states. [2022-10-16 02:39:11,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14865 to 14161. [2022-10-16 02:39:11,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14161 states, 14160 states have (on average 1.3921610169491525) internal successors, (19713), 14160 states have internal predecessors, (19713), 0 states have call successors, (0), 0 states 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 02:39:11,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14161 states to 14161 states and 19713 transitions. [2022-10-16 02:39:11,577 INFO L78 Accepts]: Start accepts. Automaton has 14161 states and 19713 transitions. Word has length 82 [2022-10-16 02:39:11,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:11,577 INFO L495 AbstractCegarLoop]: Abstraction has 14161 states and 19713 transitions. [2022-10-16 02:39:11,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:39:11,578 INFO L276 IsEmpty]: Start isEmpty. Operand 14161 states and 19713 transitions. [2022-10-16 02:39:11,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:39:11,585 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:11,585 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:11,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:39:11,586 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:11,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:11,587 INFO L85 PathProgramCache]: Analyzing trace with hash 54798832, now seen corresponding path program 1 times [2022-10-16 02:39:11,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:11,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672931336] [2022-10-16 02:39:11,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:11,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:11,799 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 02:39:11,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:11,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672931336] [2022-10-16 02:39:11,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672931336] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:11,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:11,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:39:11,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741642407] [2022-10-16 02:39:11,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:11,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:39:11,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:11,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:39:11,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:39:11,802 INFO L87 Difference]: Start difference. First operand 14161 states and 19713 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 02:39:11,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:11,973 INFO L93 Difference]: Finished difference Result 20918 states and 29351 transitions. [2022-10-16 02:39:11,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:39:11,973 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 82 [2022-10-16 02:39:11,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:12,035 INFO L225 Difference]: With dead ends: 20918 [2022-10-16 02:39:12,036 INFO L226 Difference]: Without dead ends: 20918 [2022-10-16 02:39:12,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:39:12,037 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 627 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:12,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 763 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:12,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20918 states. [2022-10-16 02:39:12,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20918 to 15973. [2022-10-16 02:39:12,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15973 states, 15972 states have (on average 1.3940020035061358) internal successors, (22265), 15972 states have internal predecessors, (22265), 0 states have call successors, (0), 0 states 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 02:39:12,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15973 states to 15973 states and 22265 transitions. [2022-10-16 02:39:12,637 INFO L78 Accepts]: Start accepts. Automaton has 15973 states and 22265 transitions. Word has length 82 [2022-10-16 02:39:12,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:12,637 INFO L495 AbstractCegarLoop]: Abstraction has 15973 states and 22265 transitions. [2022-10-16 02:39:12,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 02:39:12,639 INFO L276 IsEmpty]: Start isEmpty. Operand 15973 states and 22265 transitions. [2022-10-16 02:39:12,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:39:12,651 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:12,651 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:12,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:39:12,653 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:12,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:12,653 INFO L85 PathProgramCache]: Analyzing trace with hash -273458928, now seen corresponding path program 1 times [2022-10-16 02:39:12,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:12,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075870671] [2022-10-16 02:39:12,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:12,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:12,827 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 02:39:12,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:12,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075870671] [2022-10-16 02:39:12,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075870671] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:12,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:12,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:39:12,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995892008] [2022-10-16 02:39:12,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:12,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:39:12,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:12,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:39:12,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:39:12,831 INFO L87 Difference]: Start difference. First operand 15973 states and 22265 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:13,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:13,126 INFO L93 Difference]: Finished difference Result 24444 states and 34232 transitions. [2022-10-16 02:39:13,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:39:13,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-10-16 02:39:13,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:13,185 INFO L225 Difference]: With dead ends: 24444 [2022-10-16 02:39:13,185 INFO L226 Difference]: Without dead ends: 24433 [2022-10-16 02:39:13,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:39:13,188 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 590 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:13,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 833 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:13,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24433 states. [2022-10-16 02:39:13,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24433 to 20069. [2022-10-16 02:39:13,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20069 states, 20068 states have (on average 1.393711381303568) internal successors, (27969), 20068 states have internal predecessors, (27969), 0 states have call successors, (0), 0 states 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 02:39:13,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20069 states to 20069 states and 27969 transitions. [2022-10-16 02:39:13,581 INFO L78 Accepts]: Start accepts. Automaton has 20069 states and 27969 transitions. Word has length 82 [2022-10-16 02:39:13,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:13,582 INFO L495 AbstractCegarLoop]: Abstraction has 20069 states and 27969 transitions. [2022-10-16 02:39:13,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:13,582 INFO L276 IsEmpty]: Start isEmpty. Operand 20069 states and 27969 transitions. [2022-10-16 02:39:13,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 02:39:13,593 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:13,593 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:13,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:39:13,594 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:13,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:13,594 INFO L85 PathProgramCache]: Analyzing trace with hash -90302852, now seen corresponding path program 1 times [2022-10-16 02:39:13,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:13,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962930059] [2022-10-16 02:39:13,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:13,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:14,232 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:39:14,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:14,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962930059] [2022-10-16 02:39:14,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962930059] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:39:14,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712441475] [2022-10-16 02:39:14,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:14,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:39:14,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:39:14,235 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 02:39:14,261 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 02:39:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:14,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 02:39:14,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:39:14,788 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:39:14,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:39:15,053 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:39:15,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712441475] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:39:15,054 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:39:15,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 14 [2022-10-16 02:39:15,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910104456] [2022-10-16 02:39:15,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:39:15,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 02:39:15,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:15,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 02:39:15,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:39:15,056 INFO L87 Difference]: Start difference. First operand 20069 states and 27969 transitions. Second operand has 14 states, 14 states have (on average 16.785714285714285) internal successors, (235), 14 states have internal predecessors, (235), 0 states have call successors, (0), 0 states 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 02:39:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:21,216 INFO L93 Difference]: Finished difference Result 229000 states and 310229 transitions. [2022-10-16 02:39:21,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-10-16 02:39:21,216 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.785714285714285) internal successors, (235), 14 states have internal predecessors, (235), 0 states have call successors, (0), 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 83 [2022-10-16 02:39:21,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:21,703 INFO L225 Difference]: With dead ends: 229000 [2022-10-16 02:39:21,703 INFO L226 Difference]: Without dead ends: 228820 [2022-10-16 02:39:21,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3782 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1857, Invalid=7455, Unknown=0, NotChecked=0, Total=9312 [2022-10-16 02:39:21,707 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 6593 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6593 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:21,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6593 Valid, 2641 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 02:39:22,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228820 states. [2022-10-16 02:39:24,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228820 to 136796. [2022-10-16 02:39:25,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136796 states, 136795 states have (on average 1.3697649767900875) internal successors, (187377), 136795 states have internal predecessors, (187377), 0 states have call successors, (0), 0 states 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 02:39:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136796 states to 136796 states and 187377 transitions. [2022-10-16 02:39:25,876 INFO L78 Accepts]: Start accepts. Automaton has 136796 states and 187377 transitions. Word has length 83 [2022-10-16 02:39:25,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:25,877 INFO L495 AbstractCegarLoop]: Abstraction has 136796 states and 187377 transitions. [2022-10-16 02:39:25,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.785714285714285) internal successors, (235), 14 states have internal predecessors, (235), 0 states have call successors, (0), 0 states 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 02:39:25,877 INFO L276 IsEmpty]: Start isEmpty. Operand 136796 states and 187377 transitions. [2022-10-16 02:39:25,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 02:39:25,934 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:25,937 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:25,974 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 02:39:26,138 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,SelfDestructingSolverStorable15 [2022-10-16 02:39:26,139 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:26,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:26,141 INFO L85 PathProgramCache]: Analyzing trace with hash 147462531, now seen corresponding path program 1 times [2022-10-16 02:39:26,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:26,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329055282] [2022-10-16 02:39:26,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:26,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:26,226 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 02:39:26,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:26,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329055282] [2022-10-16 02:39:26,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329055282] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:26,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:26,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:39:26,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068941695] [2022-10-16 02:39:26,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:26,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:39:26,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:26,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:39:26,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:26,229 INFO L87 Difference]: Start difference. First operand 136796 states and 187377 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:27,211 INFO L93 Difference]: Finished difference Result 255912 states and 344949 transitions. [2022-10-16 02:39:27,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:39:27,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-10-16 02:39:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:27,732 INFO L225 Difference]: With dead ends: 255912 [2022-10-16 02:39:27,732 INFO L226 Difference]: Without dead ends: 255912 [2022-10-16 02:39:27,732 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 02:39:27,733 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 64 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:27,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 260 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:28,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255912 states. [2022-10-16 02:39:31,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255912 to 255872. [2022-10-16 02:39:31,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255872 states, 255871 states have (on average 1.3479565874991695) internal successors, (344903), 255871 states have internal predecessors, (344903), 0 states have call successors, (0), 0 states 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 02:39:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255872 states to 255872 states and 344903 transitions. [2022-10-16 02:39:33,139 INFO L78 Accepts]: Start accepts. Automaton has 255872 states and 344903 transitions. Word has length 84 [2022-10-16 02:39:33,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:33,146 INFO L495 AbstractCegarLoop]: Abstraction has 255872 states and 344903 transitions. [2022-10-16 02:39:33,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:33,146 INFO L276 IsEmpty]: Start isEmpty. Operand 255872 states and 344903 transitions. [2022-10-16 02:39:33,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-16 02:39:33,193 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:33,193 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:33,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 02:39:33,193 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:33,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:33,197 INFO L85 PathProgramCache]: Analyzing trace with hash -788693043, now seen corresponding path program 1 times [2022-10-16 02:39:33,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:33,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40642116] [2022-10-16 02:39:33,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:33,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:33,272 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 02:39:33,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:33,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40642116] [2022-10-16 02:39:33,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40642116] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:33,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:33,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:39:33,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007110143] [2022-10-16 02:39:33,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:33,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:39:33,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:33,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:39:33,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:33,275 INFO L87 Difference]: Start difference. First operand 255872 states and 344903 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:34,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:34,469 INFO L93 Difference]: Finished difference Result 367462 states and 487444 transitions. [2022-10-16 02:39:34,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:39:34,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-10-16 02:39:34,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:35,389 INFO L225 Difference]: With dead ends: 367462 [2022-10-16 02:39:35,389 INFO L226 Difference]: Without dead ends: 358042 [2022-10-16 02:39:35,389 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 02:39:35,390 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 67 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:35,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 314 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:35,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358042 states. [2022-10-16 02:39:39,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358042 to 280316. [2022-10-16 02:39:40,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280316 states, 280315 states have (on average 1.3327934644953) internal successors, (373602), 280315 states have internal predecessors, (373602), 0 states have call successors, (0), 0 states 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 02:39:41,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280316 states to 280316 states and 373602 transitions. [2022-10-16 02:39:41,242 INFO L78 Accepts]: Start accepts. Automaton has 280316 states and 373602 transitions. Word has length 85 [2022-10-16 02:39:41,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:41,245 INFO L495 AbstractCegarLoop]: Abstraction has 280316 states and 373602 transitions. [2022-10-16 02:39:41,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:41,245 INFO L276 IsEmpty]: Start isEmpty. Operand 280316 states and 373602 transitions. [2022-10-16 02:39:41,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-10-16 02:39:41,265 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:41,265 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:41,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:39:41,266 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:41,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:41,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1181693530, now seen corresponding path program 1 times [2022-10-16 02:39:41,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:41,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846262239] [2022-10-16 02:39:41,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:41,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:41,432 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:39:41,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:41,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846262239] [2022-10-16 02:39:41,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846262239] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:41,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:41,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:39:41,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564463836] [2022-10-16 02:39:41,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:41,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:39:41,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:41,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:39:41,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:39:41,436 INFO L87 Difference]: Start difference. First operand 280316 states and 373602 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:43,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:43,798 INFO L93 Difference]: Finished difference Result 424160 states and 567025 transitions. [2022-10-16 02:39:43,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:39:43,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-10-16 02:39:43,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:44,492 INFO L225 Difference]: With dead ends: 424160 [2022-10-16 02:39:44,492 INFO L226 Difference]: Without dead ends: 423620 [2022-10-16 02:39:44,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:39:44,493 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 583 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:44,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 806 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:39:45,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423620 states. [2022-10-16 02:39:49,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423620 to 318667. [2022-10-16 02:39:50,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318667 states, 318666 states have (on average 1.3329002780340544) internal successors, (424750), 318666 states have internal predecessors, (424750), 0 states have call successors, (0), 0 states 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 02:39:52,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318667 states to 318667 states and 424750 transitions. [2022-10-16 02:39:52,130 INFO L78 Accepts]: Start accepts. Automaton has 318667 states and 424750 transitions. Word has length 85 [2022-10-16 02:39:52,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:52,132 INFO L495 AbstractCegarLoop]: Abstraction has 318667 states and 424750 transitions. [2022-10-16 02:39:52,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:52,133 INFO L276 IsEmpty]: Start isEmpty. Operand 318667 states and 424750 transitions. [2022-10-16 02:39:52,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-16 02:39:52,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:52,153 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:52,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 02:39:52,153 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:52,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:52,154 INFO L85 PathProgramCache]: Analyzing trace with hash 105858641, now seen corresponding path program 1 times [2022-10-16 02:39:52,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:52,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226193112] [2022-10-16 02:39:52,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:52,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:52,373 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:39:52,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:52,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226193112] [2022-10-16 02:39:52,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226193112] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:39:52,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850673274] [2022-10-16 02:39:52,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:52,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:39:52,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:39:52,376 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 02:39:52,392 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 02:39:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:52,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 02:39:52,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:39:52,705 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:39:52,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:39:52,827 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:39:52,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850673274] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:39:52,828 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:39:52,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-10-16 02:39:52,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156517116] [2022-10-16 02:39:52,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:39:52,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 02:39:52,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:52,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 02:39:52,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:39:52,831 INFO L87 Difference]: Start difference. First operand 318667 states and 424750 transitions. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 10 states have internal predecessors, (146), 0 states have call successors, (0), 0 states 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 02:39:55,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:55,658 INFO L93 Difference]: Finished difference Result 673364 states and 889176 transitions. [2022-10-16 02:39:55,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 02:39:55,659 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 10 states have internal predecessors, (146), 0 states have call successors, (0), 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 86 [2022-10-16 02:39:55,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:57,176 INFO L225 Difference]: With dead ends: 673364 [2022-10-16 02:39:57,176 INFO L226 Difference]: Without dead ends: 673364 [2022-10-16 02:39:57,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 162 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-10-16 02:39:57,177 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 1744 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:57,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 507 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:39:57,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673364 states. [2022-10-16 02:40:06,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673364 to 379943. [2022-10-16 02:40:06,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379943 states, 379942 states have (on average 1.3353380252775424) internal successors, (507351), 379942 states have internal predecessors, (507351), 0 states have call successors, (0), 0 states 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 02:40:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379943 states to 379943 states and 507351 transitions. [2022-10-16 02:40:08,259 INFO L78 Accepts]: Start accepts. Automaton has 379943 states and 507351 transitions. Word has length 86 [2022-10-16 02:40:08,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:08,260 INFO L495 AbstractCegarLoop]: Abstraction has 379943 states and 507351 transitions. [2022-10-16 02:40:08,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 10 states have internal predecessors, (146), 0 states have call successors, (0), 0 states 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 02:40:08,261 INFO L276 IsEmpty]: Start isEmpty. Operand 379943 states and 507351 transitions. [2022-10-16 02:40:08,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-16 02:40:08,279 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:08,279 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:40:08,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 02:40:08,483 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,SelfDestructingSolverStorable19 [2022-10-16 02:40:08,483 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:08,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:08,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1873255199, now seen corresponding path program 1 times [2022-10-16 02:40:08,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:08,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982520943] [2022-10-16 02:40:08,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:08,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 02:40:08,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:08,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982520943] [2022-10-16 02:40:08,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982520943] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:40:08,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:40:08,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:40:08,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448898108] [2022-10-16 02:40:08,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:40:08,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:40:08,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:08,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:40:08,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:40:08,623 INFO L87 Difference]: Start difference. First operand 379943 states and 507351 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:40:11,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:11,314 INFO L93 Difference]: Finished difference Result 414516 states and 545054 transitions. [2022-10-16 02:40:11,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:40:11,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 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 86 [2022-10-16 02:40:11,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:11,939 INFO L225 Difference]: With dead ends: 414516 [2022-10-16 02:40:11,939 INFO L226 Difference]: Without dead ends: 414516 [2022-10-16 02:40:11,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:40:11,940 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 559 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:11,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 271 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:40:12,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414516 states. [2022-10-16 02:40:17,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414516 to 403150. [2022-10-16 02:40:17,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403150 states, 403149 states have (on average 1.316768738109235) internal successors, (530854), 403149 states have internal predecessors, (530854), 0 states have call successors, (0), 0 states 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 02:40:19,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403150 states to 403150 states and 530854 transitions. [2022-10-16 02:40:19,496 INFO L78 Accepts]: Start accepts. Automaton has 403150 states and 530854 transitions. Word has length 86 [2022-10-16 02:40:19,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:19,496 INFO L495 AbstractCegarLoop]: Abstraction has 403150 states and 530854 transitions. [2022-10-16 02:40:19,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:40:19,496 INFO L276 IsEmpty]: Start isEmpty. Operand 403150 states and 530854 transitions. [2022-10-16 02:40:19,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-16 02:40:19,511 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:19,511 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:40:19,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:40:19,511 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:19,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:19,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1308309177, now seen corresponding path program 1 times [2022-10-16 02:40:19,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:19,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949421965] [2022-10-16 02:40:19,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:19,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:19,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:19,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949421965] [2022-10-16 02:40:19,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949421965] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:40:19,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740490921] [2022-10-16 02:40:19,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:19,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:40:19,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:40:19,675 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 02:40:19,693 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 02:40:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:19,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 02:40:19,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:40:20,020 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:20,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:40:20,124 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:20,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740490921] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:40:20,124 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:40:20,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-10-16 02:40:20,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650603963] [2022-10-16 02:40:20,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:40:20,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 02:40:20,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:20,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 02:40:20,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:40:20,127 INFO L87 Difference]: Start difference. First operand 403150 states and 530854 transitions. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 10 states have internal predecessors, (146), 0 states have call successors, (0), 0 states 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 02:40:23,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:23,810 INFO L93 Difference]: Finished difference Result 708652 states and 929170 transitions. [2022-10-16 02:40:23,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 02:40:23,811 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 10 states have internal predecessors, (146), 0 states have call successors, (0), 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 86 [2022-10-16 02:40:23,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:25,041 INFO L225 Difference]: With dead ends: 708652 [2022-10-16 02:40:25,041 INFO L226 Difference]: Without dead ends: 708652 [2022-10-16 02:40:25,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 162 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-10-16 02:40:25,042 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 2981 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2981 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:25,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2981 Valid, 337 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:40:26,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708652 states. [2022-10-16 02:40:33,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708652 to 402900. [2022-10-16 02:40:33,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402900 states, 402899 states have (on average 1.3237908259886473) internal successors, (533354), 402899 states have internal predecessors, (533354), 0 states have call successors, (0), 0 states 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 02:40:36,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402900 states to 402900 states and 533354 transitions. [2022-10-16 02:40:36,606 INFO L78 Accepts]: Start accepts. Automaton has 402900 states and 533354 transitions. Word has length 86 [2022-10-16 02:40:36,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:36,606 INFO L495 AbstractCegarLoop]: Abstraction has 402900 states and 533354 transitions. [2022-10-16 02:40:36,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 10 states have internal predecessors, (146), 0 states have call successors, (0), 0 states 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 02:40:36,619 INFO L276 IsEmpty]: Start isEmpty. Operand 402900 states and 533354 transitions. [2022-10-16 02:40:36,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 02:40:36,636 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:36,636 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:40:36,683 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 02:40:36,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:40:36,850 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:36,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:36,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1155556519, now seen corresponding path program 1 times [2022-10-16 02:40:36,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:36,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189157454] [2022-10-16 02:40:36,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:36,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:37,031 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 02:40:37,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:37,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189157454] [2022-10-16 02:40:37,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189157454] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:40:37,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:40:37,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:40:37,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268266396] [2022-10-16 02:40:37,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:40:37,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:40:37,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:37,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:40:37,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:40:37,036 INFO L87 Difference]: Start difference. First operand 402900 states and 533354 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 02:40:39,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:39,746 INFO L93 Difference]: Finished difference Result 301467 states and 389762 transitions. [2022-10-16 02:40:39,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:40:39,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-10-16 02:40:39,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:40,375 INFO L225 Difference]: With dead ends: 301467 [2022-10-16 02:40:40,375 INFO L226 Difference]: Without dead ends: 301467 [2022-10-16 02:40:40,377 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 02:40:40,379 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 66 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 280 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 02:40:40,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 280 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:40:40,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301467 states. [2022-10-16 02:40:45,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301467 to 301322. [2022-10-16 02:40:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301322 states, 301321 states have (on average 1.2929102186704544) internal successors, (389581), 301321 states have internal predecessors, (389581), 0 states have call successors, (0), 0 states 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 02:40:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301322 states to 301322 states and 389581 transitions. [2022-10-16 02:40:46,837 INFO L78 Accepts]: Start accepts. Automaton has 301322 states and 389581 transitions. Word has length 87 [2022-10-16 02:40:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:46,837 INFO L495 AbstractCegarLoop]: Abstraction has 301322 states and 389581 transitions. [2022-10-16 02:40:46,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 02:40:46,851 INFO L276 IsEmpty]: Start isEmpty. Operand 301322 states and 389581 transitions. [2022-10-16 02:40:46,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 02:40:46,860 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:46,861 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:40:46,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 02:40:46,861 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:46,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:46,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1102169944, now seen corresponding path program 1 times [2022-10-16 02:40:46,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:46,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731364223] [2022-10-16 02:40:46,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:46,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:47,569 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:47,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:47,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731364223] [2022-10-16 02:40:47,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731364223] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:40:47,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544452143] [2022-10-16 02:40:47,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:47,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:40:47,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:40:47,583 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 02:40:47,634 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 02:40:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:47,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 02:40:47,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:40:48,478 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:48,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:40:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:49,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544452143] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:40:49,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:40:49,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2022-10-16 02:40:49,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256246007] [2022-10-16 02:40:49,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:40:49,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 02:40:49,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:49,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 02:40:49,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2022-10-16 02:40:49,707 INFO L87 Difference]: Start difference. First operand 301322 states and 389581 transitions. Second operand has 21 states, 21 states have (on average 9.619047619047619) internal successors, (202), 20 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 02:40:54,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:54,636 INFO L93 Difference]: Finished difference Result 974589 states and 1245523 transitions. [2022-10-16 02:40:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 02:40:54,637 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.619047619047619) internal successors, (202), 20 states have internal predecessors, (202), 0 states have call successors, (0), 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 89 [2022-10-16 02:40:54,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:56,713 INFO L225 Difference]: With dead ends: 974589 [2022-10-16 02:40:56,713 INFO L226 Difference]: Without dead ends: 974589 [2022-10-16 02:40:56,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 164 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=456, Invalid=1266, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 02:40:56,715 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1196 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:56,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 2035 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 02:40:57,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974589 states. [2022-10-16 02:41:06,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974589 to 481849. [2022-10-16 02:41:07,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481849 states, 481848 states have (on average 1.2878604871245705) internal successors, (620553), 481848 states have internal predecessors, (620553), 0 states have call successors, (0), 0 states 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 02:41:11,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481849 states to 481849 states and 620553 transitions. [2022-10-16 02:41:11,229 INFO L78 Accepts]: Start accepts. Automaton has 481849 states and 620553 transitions. Word has length 89 [2022-10-16 02:41:11,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:41:11,230 INFO L495 AbstractCegarLoop]: Abstraction has 481849 states and 620553 transitions. [2022-10-16 02:41:11,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.619047619047619) internal successors, (202), 20 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 02:41:11,230 INFO L276 IsEmpty]: Start isEmpty. Operand 481849 states and 620553 transitions. [2022-10-16 02:41:11,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 02:41:11,265 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:41:11,265 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:41:11,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-16 02:41:11,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:41:11,466 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:41:11,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:41:11,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1820990054, now seen corresponding path program 1 times [2022-10-16 02:41:11,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:41:11,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264620658] [2022-10-16 02:41:11,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:41:11,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:41:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:41:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 02:41:11,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:41:11,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264620658] [2022-10-16 02:41:11,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264620658] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:41:11,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:41:11,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:41:11,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082127654] [2022-10-16 02:41:11,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:41:11,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:41:11,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:41:11,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:41:11,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:41:11,690 INFO L87 Difference]: Start difference. First operand 481849 states and 620553 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 02:41:14,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:41:14,740 INFO L93 Difference]: Finished difference Result 573136 states and 732956 transitions. [2022-10-16 02:41:14,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:41:14,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 89 [2022-10-16 02:41:14,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:41:15,764 INFO L225 Difference]: With dead ends: 573136 [2022-10-16 02:41:15,764 INFO L226 Difference]: Without dead ends: 573136 [2022-10-16 02:41:15,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:41:15,766 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 511 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:41:15,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 267 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:41:16,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573136 states. [2022-10-16 02:41:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573136 to 565893. [2022-10-16 02:41:24,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565893 states, 565892 states have (on average 1.2818435319813675) internal successors, (725385), 565892 states have internal predecessors, (725385), 0 states have call successors, (0), 0 states 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 02:41:26,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565893 states to 565893 states and 725385 transitions. [2022-10-16 02:41:26,964 INFO L78 Accepts]: Start accepts. Automaton has 565893 states and 725385 transitions. Word has length 89 [2022-10-16 02:41:26,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:41:26,965 INFO L495 AbstractCegarLoop]: Abstraction has 565893 states and 725385 transitions. [2022-10-16 02:41:26,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 02:41:26,965 INFO L276 IsEmpty]: Start isEmpty. Operand 565893 states and 725385 transitions. [2022-10-16 02:41:26,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 02:41:26,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:41:26,994 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:41:26,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 02:41:26,995 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:41:26,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:41:26,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1389050491, now seen corresponding path program 1 times [2022-10-16 02:41:26,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:41:26,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552324621] [2022-10-16 02:41:26,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:41:26,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:41:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:41:27,098 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 02:41:27,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:41:27,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552324621] [2022-10-16 02:41:27,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552324621] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:41:27,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:41:27,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:41:27,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484040018] [2022-10-16 02:41:27,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:41:27,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:41:27,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:41:27,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:41:27,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:41:27,106 INFO L87 Difference]: Start difference. First operand 565893 states and 725385 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 02:41:31,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:41:31,729 INFO L93 Difference]: Finished difference Result 773341 states and 979723 transitions. [2022-10-16 02:41:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:41:31,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 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 89 [2022-10-16 02:41:31,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:41:33,448 INFO L225 Difference]: With dead ends: 773341 [2022-10-16 02:41:33,449 INFO L226 Difference]: Without dead ends: 773341 [2022-10-16 02:41:33,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:41:33,450 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 750 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:41:33,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 231 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:41:34,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773341 states. [2022-10-16 02:41:43,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773341 to 565893. [2022-10-16 02:41:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565893 states, 565892 states have (on average 1.2742537445307585) internal successors, (721090), 565892 states have internal predecessors, (721090), 0 states have call successors, (0), 0 states 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 02:41:47,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565893 states to 565893 states and 721090 transitions. [2022-10-16 02:41:47,530 INFO L78 Accepts]: Start accepts. Automaton has 565893 states and 721090 transitions. Word has length 89 [2022-10-16 02:41:47,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:41:47,531 INFO L495 AbstractCegarLoop]: Abstraction has 565893 states and 721090 transitions. [2022-10-16 02:41:47,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 02:41:47,531 INFO L276 IsEmpty]: Start isEmpty. Operand 565893 states and 721090 transitions. [2022-10-16 02:41:47,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 02:41:47,542 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:41:47,542 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:41:47,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-16 02:41:47,543 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:41:47,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:41:47,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1348375741, now seen corresponding path program 1 times [2022-10-16 02:41:47,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:41:47,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370912404] [2022-10-16 02:41:47,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:41:47,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:41:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:41:47,740 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:41:47,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:41:47,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370912404] [2022-10-16 02:41:47,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370912404] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:41:47,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377359906] [2022-10-16 02:41:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:41:47,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:41:47,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:41:47,743 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:41:47,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 02:41:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:41:47,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 02:41:47,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:41:48,071 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:41:48,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:41:48,185 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:41:48,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377359906] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:41:48,185 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:41:48,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-10-16 02:41:48,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014161412] [2022-10-16 02:41:48,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:41:48,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 02:41:48,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:41:48,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 02:41:48,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:41:48,188 INFO L87 Difference]: Start difference. First operand 565893 states and 721090 transitions. Second operand has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 10 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)