/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.4_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:44:34,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:44:34,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:44:34,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 02:44:34,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 02:44:34,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 02:44:34,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 02:44:34,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 02:44:34,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 02:44:34,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 02:44:34,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 02:44:34,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 02:44:34,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 02:44:34,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 02:44:34,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 02:44:34,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 02:44:34,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 02:44:34,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 02:44:34,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 02:44:34,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 02:44:34,634 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 02:44:34,700 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:44:34,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:44:34,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:44:34,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:44:34,703 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:44:34,703 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:44:34,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:44:34,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:44:34,706 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:44:34,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:44:34,708 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:44:34,708 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:44:34,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:44:34,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:44:34,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:44:34,709 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:44:34,710 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:44:34,710 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:44:34,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:44:34,710 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:44:34,710 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:44:34,711 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:44:34,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:44:34,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:44:34,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:44:34,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:44:34,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:44:34,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:44:34,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:44:34,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:44:34,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:44:35,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:44:35,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:44:35,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:44:35,133 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:44:35,134 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:44:35,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c [2022-10-16 02:44:35,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba49b49d/b730516e79f840a68ef8bf314284a736/FLAG4a67bb2f7 [2022-10-16 02:44:35,878 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:44:35,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c [2022-10-16 02:44:35,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba49b49d/b730516e79f840a68ef8bf314284a736/FLAG4a67bb2f7 [2022-10-16 02:44:36,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba49b49d/b730516e79f840a68ef8bf314284a736 [2022-10-16 02:44:36,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:44:36,215 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:44:36,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:44:36,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:44:36,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:44:36,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@293e0e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36, skipping insertion in model container [2022-10-16 02:44:36,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:44:36,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:44:36,554 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.4_overflow.ufo.UNBOUNDED.pals.c[8379,8392] [2022-10-16 02:44:36,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:44:36,569 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:44:36,616 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.4_overflow.ufo.UNBOUNDED.pals.c[8379,8392] [2022-10-16 02:44:36,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:44:36,641 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:44:36,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36 WrapperNode [2022-10-16 02:44:36,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:44:36,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:44:36,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:44:36,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:44:36,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,740 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 272 [2022-10-16 02:44:36,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:44:36,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:44:36,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:44:36,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:44:36,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,798 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:44:36,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:44:36,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:44:36,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:44:36,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36" (1/1) ... [2022-10-16 02:44:36,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:44:36,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:44:36,848 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 02:44:36,862 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 02:44:36,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:44:36,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:44:36,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:44:36,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:44:37,026 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:44:37,028 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:44:37,559 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:44:37,568 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:44:37,568 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:44:37,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:44:37 BoogieIcfgContainer [2022-10-16 02:44:37,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:44:37,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:44:37,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:44:37,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:44:37,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:44:36" (1/3) ... [2022-10-16 02:44:37,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b2e7bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:44:37, skipping insertion in model container [2022-10-16 02:44:37,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:36" (2/3) ... [2022-10-16 02:44:37,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b2e7bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:44:37, skipping insertion in model container [2022-10-16 02:44:37,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:44:37" (3/3) ... [2022-10-16 02:44:37,581 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c [2022-10-16 02:44:37,604 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:44:37,604 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:44:37,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:44:37,671 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;@779c2aeb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:44:37,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:44:37,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 75 states have (on average 1.72) internal successors, (129), 77 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 02:44:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 02:44:37,685 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:37,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:44:37,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:37,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:37,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1138008113, now seen corresponding path program 1 times [2022-10-16 02:44:37,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:37,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237358537] [2022-10-16 02:44:37,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:37,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:37,905 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 02:44:37,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:37,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237358537] [2022-10-16 02:44:37,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237358537] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:37,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:37,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:44:37,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136917567] [2022-10-16 02:44:37,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:37,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 02:44:37,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:37,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 02:44:37,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:44:37,953 INFO L87 Difference]: Start difference. First operand has 78 states, 75 states have (on average 1.72) internal successors, (129), 77 states have internal predecessors, (129), 0 states have call successors, (0), 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 02:44:37,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:37,976 INFO L93 Difference]: Finished difference Result 73 states and 121 transitions. [2022-10-16 02:44:37,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 02:44:37,979 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 02:44:37,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:37,990 INFO L225 Difference]: With dead ends: 73 [2022-10-16 02:44:37,991 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 02:44:37,993 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 02:44:37,998 INFO L413 NwaCegarLoop]: 121 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, 121 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 02:44:37,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:38,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 02:44:38,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-10-16 02:44:38,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.6805555555555556) internal successors, (121), 72 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:38,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 121 transitions. [2022-10-16 02:44:38,045 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 121 transitions. Word has length 10 [2022-10-16 02:44:38,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:38,046 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 121 transitions. [2022-10-16 02:44:38,046 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 02:44:38,046 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 121 transitions. [2022-10-16 02:44:38,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 02:44:38,048 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:38,048 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 02:44:38,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:44:38,049 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:38,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:38,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1971121216, now seen corresponding path program 1 times [2022-10-16 02:44:38,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:38,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814302365] [2022-10-16 02:44:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:38,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:38,401 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 02:44:38,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:38,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814302365] [2022-10-16 02:44:38,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814302365] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:38,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:38,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:44:38,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875932855] [2022-10-16 02:44:38,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:38,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:44:38,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:38,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:44:38,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:44:38,406 INFO L87 Difference]: Start difference. First operand 73 states and 121 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 02:44:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:38,482 INFO L93 Difference]: Finished difference Result 76 states and 123 transitions. [2022-10-16 02:44:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:44:38,483 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 02:44:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:38,485 INFO L225 Difference]: With dead ends: 76 [2022-10-16 02:44:38,485 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 02:44:38,485 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 02:44:38,487 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 3 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:38,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 450 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:38,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 02:44:38,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-10-16 02:44:38,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.3611111111111112) internal successors, (98), 72 states have internal predecessors, (98), 0 states have call successors, (0), 0 states 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 02:44:38,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 98 transitions. [2022-10-16 02:44:38,498 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 98 transitions. Word has length 29 [2022-10-16 02:44:38,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:38,498 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 98 transitions. [2022-10-16 02:44:38,498 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 02:44:38,499 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 98 transitions. [2022-10-16 02:44:38,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 02:44:38,501 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:38,501 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] [2022-10-16 02:44:38,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:44:38,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:38,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:38,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1333293339, now seen corresponding path program 1 times [2022-10-16 02:44:38,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:38,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311413666] [2022-10-16 02:44:38,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:38,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:38,659 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 02:44:38,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:38,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311413666] [2022-10-16 02:44:38,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311413666] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:38,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:38,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:44:38,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661962863] [2022-10-16 02:44:38,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:38,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:44:38,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:38,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:44:38,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:44:38,663 INFO L87 Difference]: Start difference. First operand 73 states and 98 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 02:44:38,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:38,686 INFO L93 Difference]: Finished difference Result 111 states and 156 transitions. [2022-10-16 02:44:38,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:44:38,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-10-16 02:44:38,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:38,689 INFO L225 Difference]: With dead ends: 111 [2022-10-16 02:44:38,689 INFO L226 Difference]: Without dead ends: 111 [2022-10-16 02:44:38,689 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 02:44:38,691 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 59 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 220 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 02:44:38,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 220 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:38,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-10-16 02:44:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2022-10-16 02:44:38,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.4351851851851851) internal successors, (155), 108 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) [2022-10-16 02:44:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 155 transitions. [2022-10-16 02:44:38,718 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 155 transitions. Word has length 51 [2022-10-16 02:44:38,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:38,719 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 155 transitions. [2022-10-16 02:44:38,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 02:44:38,721 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 155 transitions. [2022-10-16 02:44:38,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 02:44:38,722 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:38,723 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] [2022-10-16 02:44:38,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:44:38,723 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:38,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:38,724 INFO L85 PathProgramCache]: Analyzing trace with hash -606737519, now seen corresponding path program 1 times [2022-10-16 02:44:38,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:38,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869360411] [2022-10-16 02:44:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:38,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:38,891 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 02:44:38,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:38,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869360411] [2022-10-16 02:44:38,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869360411] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:38,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:38,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:44:38,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229808663] [2022-10-16 02:44:38,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:38,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:44:38,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:38,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:44:38,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:44:38,897 INFO L87 Difference]: Start difference. First operand 109 states and 155 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 02:44:38,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:38,941 INFO L93 Difference]: Finished difference Result 177 states and 259 transitions. [2022-10-16 02:44:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:44:38,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-10-16 02:44:38,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:38,948 INFO L225 Difference]: With dead ends: 177 [2022-10-16 02:44:38,948 INFO L226 Difference]: Without dead ends: 177 [2022-10-16 02:44:38,948 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 02:44:38,950 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 55 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 219 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 02:44:38,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 219 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:38,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-10-16 02:44:38,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2022-10-16 02:44:38,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 174 states have (on average 1.4827586206896552) internal successors, (258), 174 states have internal predecessors, (258), 0 states have call successors, (0), 0 states 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 02:44:38,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 258 transitions. [2022-10-16 02:44:38,985 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 258 transitions. Word has length 51 [2022-10-16 02:44:38,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:38,985 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 258 transitions. [2022-10-16 02:44:38,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 02:44:38,987 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 258 transitions. [2022-10-16 02:44:38,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 02:44:38,990 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:38,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:44:38,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:44:38,991 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:38,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:38,992 INFO L85 PathProgramCache]: Analyzing trace with hash 2093945095, now seen corresponding path program 1 times [2022-10-16 02:44:38,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:38,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445988959] [2022-10-16 02:44:38,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:38,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:39,096 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 02:44:39,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:39,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445988959] [2022-10-16 02:44:39,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445988959] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:39,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:39,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:44:39,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216574808] [2022-10-16 02:44:39,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:39,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:44:39,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:39,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:44:39,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:44:39,100 INFO L87 Difference]: Start difference. First operand 175 states and 258 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 02:44:39,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:39,127 INFO L93 Difference]: Finished difference Result 297 states and 443 transitions. [2022-10-16 02:44:39,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:44:39,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-10-16 02:44:39,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:39,133 INFO L225 Difference]: With dead ends: 297 [2022-10-16 02:44:39,134 INFO L226 Difference]: Without dead ends: 297 [2022-10-16 02:44:39,134 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 02:44:39,136 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 51 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 218 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 02:44:39,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 218 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:39,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-10-16 02:44:39,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 295. [2022-10-16 02:44:39,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 294 states have (on average 1.5034013605442176) internal successors, (442), 294 states have internal predecessors, (442), 0 states have call successors, (0), 0 states 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 02:44:39,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 442 transitions. [2022-10-16 02:44:39,180 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 442 transitions. Word has length 51 [2022-10-16 02:44:39,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:39,181 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 442 transitions. [2022-10-16 02:44:39,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 02:44:39,184 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 442 transitions. [2022-10-16 02:44:39,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 02:44:39,185 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:39,185 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] [2022-10-16 02:44:39,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:44:39,186 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:39,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:39,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1863229059, now seen corresponding path program 1 times [2022-10-16 02:44:39,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:39,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917641803] [2022-10-16 02:44:39,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:39,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:39,270 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 02:44:39,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:39,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917641803] [2022-10-16 02:44:39,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917641803] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:39,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:39,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:44:39,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881110906] [2022-10-16 02:44:39,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:39,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:44:39,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:39,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:44:39,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:44:39,273 INFO L87 Difference]: Start difference. First operand 295 states and 442 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 02:44:39,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:39,289 INFO L93 Difference]: Finished difference Result 513 states and 767 transitions. [2022-10-16 02:44:39,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:44:39,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-10-16 02:44:39,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:39,294 INFO L225 Difference]: With dead ends: 513 [2022-10-16 02:44:39,294 INFO L226 Difference]: Without dead ends: 513 [2022-10-16 02:44:39,294 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 02:44:39,296 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 47 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 217 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 02:44:39,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 217 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:39,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-10-16 02:44:39,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 511. [2022-10-16 02:44:39,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 510 states have (on average 1.5019607843137255) internal successors, (766), 510 states have internal predecessors, (766), 0 states have call successors, (0), 0 states 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 02:44:39,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 766 transitions. [2022-10-16 02:44:39,317 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 766 transitions. Word has length 51 [2022-10-16 02:44:39,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:39,318 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 766 transitions. [2022-10-16 02:44:39,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 02:44:39,318 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 766 transitions. [2022-10-16 02:44:39,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 02:44:39,319 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:39,320 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] [2022-10-16 02:44:39,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:44:39,320 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:39,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:39,321 INFO L85 PathProgramCache]: Analyzing trace with hash -645243661, now seen corresponding path program 1 times [2022-10-16 02:44:39,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:39,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993482948] [2022-10-16 02:44:39,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:39,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:39,494 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 02:44:39,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:39,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993482948] [2022-10-16 02:44:39,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993482948] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:39,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:39,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:44:39,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478296115] [2022-10-16 02:44:39,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:39,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:44:39,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:39,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:44:39,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:44:39,498 INFO L87 Difference]: Start difference. First operand 511 states and 766 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 02:44:39,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:39,663 INFO L93 Difference]: Finished difference Result 3885 states and 5797 transitions. [2022-10-16 02:44:39,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 02:44:39,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-10-16 02:44:39,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:39,685 INFO L225 Difference]: With dead ends: 3885 [2022-10-16 02:44:39,685 INFO L226 Difference]: Without dead ends: 3885 [2022-10-16 02:44:39,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:44:39,687 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 765 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:39,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 629 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:44:39,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2022-10-16 02:44:39,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 991. [2022-10-16 02:44:39,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 990 states have (on average 1.4848484848484849) internal successors, (1470), 990 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states 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 02:44:39,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1470 transitions. [2022-10-16 02:44:39,745 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1470 transitions. Word has length 51 [2022-10-16 02:44:39,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:39,745 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1470 transitions. [2022-10-16 02:44:39,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states 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 02:44:39,746 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1470 transitions. [2022-10-16 02:44:39,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 02:44:39,746 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:39,747 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 02:44:39,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:44:39,747 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:39,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:39,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1275401347, now seen corresponding path program 1 times [2022-10-16 02:44:39,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:39,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153619162] [2022-10-16 02:44:39,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:39,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:39,829 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 02:44:39,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:39,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153619162] [2022-10-16 02:44:39,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153619162] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:39,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:39,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:44:39,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366471607] [2022-10-16 02:44:39,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:39,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:44:39,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:39,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:44:39,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:44:39,832 INFO L87 Difference]: Start difference. First operand 991 states and 1470 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 02:44:39,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:39,857 INFO L93 Difference]: Finished difference Result 1435 states and 2105 transitions. [2022-10-16 02:44:39,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:44:39,857 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 02:44:39,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:39,865 INFO L225 Difference]: With dead ends: 1435 [2022-10-16 02:44:39,865 INFO L226 Difference]: Without dead ends: 1435 [2022-10-16 02:44:39,866 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 02:44:39,867 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 39 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 184 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 02:44:39,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 184 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:39,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2022-10-16 02:44:39,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1433. [2022-10-16 02:44:39,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1432 states have (on average 1.4692737430167597) internal successors, (2104), 1432 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states 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 02:44:39,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2104 transitions. [2022-10-16 02:44:39,903 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2104 transitions. Word has length 53 [2022-10-16 02:44:39,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:39,904 INFO L495 AbstractCegarLoop]: Abstraction has 1433 states and 2104 transitions. [2022-10-16 02:44:39,904 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 02:44:39,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2104 transitions. [2022-10-16 02:44:39,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 02:44:39,905 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:39,905 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 02:44:39,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:44:39,906 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:39,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:39,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1341894859, now seen corresponding path program 1 times [2022-10-16 02:44:39,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:39,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946554708] [2022-10-16 02:44:39,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:39,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:40,290 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 02:44:40,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:40,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946554708] [2022-10-16 02:44:40,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946554708] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:40,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:40,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:44:40,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760173266] [2022-10-16 02:44:40,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:40,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:44:40,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:40,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:44:40,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:44:40,293 INFO L87 Difference]: Start difference. First operand 1433 states and 2104 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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 02:44:40,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:40,407 INFO L93 Difference]: Finished difference Result 1435 states and 2081 transitions. [2022-10-16 02:44:40,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:44:40,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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 02:44:40,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:40,415 INFO L225 Difference]: With dead ends: 1435 [2022-10-16 02:44:40,415 INFO L226 Difference]: Without dead ends: 1435 [2022-10-16 02:44:40,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:44:40,416 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 237 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:40,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 287 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:40,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2022-10-16 02:44:40,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1433. [2022-10-16 02:44:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1432 states have (on average 1.452513966480447) internal successors, (2080), 1432 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states 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 02:44:40,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2080 transitions. [2022-10-16 02:44:40,454 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2080 transitions. Word has length 53 [2022-10-16 02:44:40,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:40,454 INFO L495 AbstractCegarLoop]: Abstraction has 1433 states and 2080 transitions. [2022-10-16 02:44:40,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 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 02:44:40,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2080 transitions. [2022-10-16 02:44:40,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 02:44:40,455 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:40,456 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 02:44:40,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:44:40,456 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:40,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:40,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1765655459, now seen corresponding path program 1 times [2022-10-16 02:44:40,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:40,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968191241] [2022-10-16 02:44:40,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:40,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:40,694 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 02:44:40,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:40,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968191241] [2022-10-16 02:44:40,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968191241] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:40,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:40,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 02:44:40,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804844593] [2022-10-16 02:44:40,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:40,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 02:44:40,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:40,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 02:44:40,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:44:40,697 INFO L87 Difference]: Start difference. First operand 1433 states and 2080 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 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 02:44:40,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:40,828 INFO L93 Difference]: Finished difference Result 2662 states and 3776 transitions. [2022-10-16 02:44:40,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:44:40,829 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 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 02:44:40,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:40,841 INFO L225 Difference]: With dead ends: 2662 [2022-10-16 02:44:40,842 INFO L226 Difference]: Without dead ends: 2662 [2022-10-16 02:44:40,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-16 02:44:40,843 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 526 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:40,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 467 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:40,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2022-10-16 02:44:40,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 1529. [2022-10-16 02:44:40,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1528 states have (on average 1.418848167539267) internal successors, (2168), 1528 states have internal predecessors, (2168), 0 states have call successors, (0), 0 states 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 02:44:40,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 2168 transitions. [2022-10-16 02:44:40,920 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 2168 transitions. Word has length 54 [2022-10-16 02:44:40,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:40,920 INFO L495 AbstractCegarLoop]: Abstraction has 1529 states and 2168 transitions. [2022-10-16 02:44:40,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 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 02:44:40,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 2168 transitions. [2022-10-16 02:44:40,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 02:44:40,923 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:40,924 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] [2022-10-16 02:44:40,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:44:40,924 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:40,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:40,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1473223963, now seen corresponding path program 1 times [2022-10-16 02:44:40,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:40,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319825009] [2022-10-16 02:44:40,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:40,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:41,082 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:44:41,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:41,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319825009] [2022-10-16 02:44:41,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319825009] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:41,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:41,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:44:41,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995155492] [2022-10-16 02:44:41,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:41,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:44:41,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:41,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:44:41,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:44:41,086 INFO L87 Difference]: Start difference. First operand 1529 states and 2168 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 02:44:41,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:41,214 INFO L93 Difference]: Finished difference Result 6337 states and 8976 transitions. [2022-10-16 02:44:41,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:44:41,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 78 [2022-10-16 02:44:41,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:41,246 INFO L225 Difference]: With dead ends: 6337 [2022-10-16 02:44:41,246 INFO L226 Difference]: Without dead ends: 6337 [2022-10-16 02:44:41,247 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 02:44:41,247 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 445 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:41,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 475 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:44:41,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6337 states. [2022-10-16 02:44:41,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6337 to 3025. [2022-10-16 02:44:41,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 3024 states have (on average 1.4153439153439153) internal successors, (4280), 3024 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states 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 02:44:41,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 4280 transitions. [2022-10-16 02:44:41,358 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 4280 transitions. Word has length 78 [2022-10-16 02:44:41,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:41,359 INFO L495 AbstractCegarLoop]: Abstraction has 3025 states and 4280 transitions. [2022-10-16 02:44:41,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 02:44:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 4280 transitions. [2022-10-16 02:44:41,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 02:44:41,361 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:41,362 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] [2022-10-16 02:44:41,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:44:41,362 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:41,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:41,363 INFO L85 PathProgramCache]: Analyzing trace with hash -295558853, now seen corresponding path program 1 times [2022-10-16 02:44:41,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:41,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628640659] [2022-10-16 02:44:41,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:41,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 02:44:41,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:41,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628640659] [2022-10-16 02:44:41,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628640659] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:41,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:41,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:44:41,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388478763] [2022-10-16 02:44:41,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:41,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:44:41,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:41,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:44:41,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:44:41,533 INFO L87 Difference]: Start difference. First operand 3025 states and 4280 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 02:44:41,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:41,660 INFO L93 Difference]: Finished difference Result 7833 states and 11088 transitions. [2022-10-16 02:44:41,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:44:41,660 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 78 [2022-10-16 02:44:41,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:41,698 INFO L225 Difference]: With dead ends: 7833 [2022-10-16 02:44:41,699 INFO L226 Difference]: Without dead ends: 7833 [2022-10-16 02:44:41,699 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 02:44:41,700 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 401 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:41,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 515 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:44:41,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7833 states. [2022-10-16 02:44:41,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7833 to 5273. [2022-10-16 02:44:41,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5273 states, 5272 states have (on average 1.4089529590288317) internal successors, (7428), 5272 states have internal predecessors, (7428), 0 states have call successors, (0), 0 states 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 02:44:41,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 7428 transitions. [2022-10-16 02:44:41,855 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 7428 transitions. Word has length 78 [2022-10-16 02:44:41,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:41,855 INFO L495 AbstractCegarLoop]: Abstraction has 5273 states and 7428 transitions. [2022-10-16 02:44:41,856 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 02:44:41,856 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 7428 transitions. [2022-10-16 02:44:41,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 02:44:41,858 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:41,859 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] [2022-10-16 02:44:41,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:44:41,859 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:41,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:41,860 INFO L85 PathProgramCache]: Analyzing trace with hash 836080987, now seen corresponding path program 1 times [2022-10-16 02:44:41,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:41,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98229802] [2022-10-16 02:44:41,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:41,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:42,062 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:44:42,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:42,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98229802] [2022-10-16 02:44:42,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98229802] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:42,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:42,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:44:42,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805260675] [2022-10-16 02:44:42,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:42,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:44:42,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:42,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:44:42,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:44:42,066 INFO L87 Difference]: Start difference. First operand 5273 states and 7428 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 02:44:42,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:42,198 INFO L93 Difference]: Finished difference Result 9329 states and 13200 transitions. [2022-10-16 02:44:42,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:44:42,199 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 78 [2022-10-16 02:44:42,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:42,231 INFO L225 Difference]: With dead ends: 9329 [2022-10-16 02:44:42,231 INFO L226 Difference]: Without dead ends: 9329 [2022-10-16 02:44:42,231 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 02:44:42,232 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 436 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:42,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 519 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:44:42,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9329 states. [2022-10-16 02:44:42,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9329 to 6769. [2022-10-16 02:44:42,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6769 states, 6768 states have (on average 1.4095744680851063) internal successors, (9540), 6768 states have internal predecessors, (9540), 0 states have call successors, (0), 0 states 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 02:44:42,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6769 states to 6769 states and 9540 transitions. [2022-10-16 02:44:42,411 INFO L78 Accepts]: Start accepts. Automaton has 6769 states and 9540 transitions. Word has length 78 [2022-10-16 02:44:42,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:42,411 INFO L495 AbstractCegarLoop]: Abstraction has 6769 states and 9540 transitions. [2022-10-16 02:44:42,411 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 02:44:42,412 INFO L276 IsEmpty]: Start isEmpty. Operand 6769 states and 9540 transitions. [2022-10-16 02:44:42,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 02:44:42,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:42,415 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] [2022-10-16 02:44:42,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:44:42,415 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:42,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:42,416 INFO L85 PathProgramCache]: Analyzing trace with hash -399378053, now seen corresponding path program 1 times [2022-10-16 02:44:42,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:42,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403959661] [2022-10-16 02:44:42,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:42,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:42,602 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 02:44:42,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:42,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403959661] [2022-10-16 02:44:42,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403959661] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:42,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:42,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:44:42,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373141643] [2022-10-16 02:44:42,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:42,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:44:42,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:42,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:44:42,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:44:42,605 INFO L87 Difference]: Start difference. First operand 6769 states and 9540 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 02:44:42,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:42,729 INFO L93 Difference]: Finished difference Result 10385 states and 14704 transitions. [2022-10-16 02:44:42,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:44:42,730 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 78 [2022-10-16 02:44:42,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:42,753 INFO L225 Difference]: With dead ends: 10385 [2022-10-16 02:44:42,753 INFO L226 Difference]: Without dead ends: 10385 [2022-10-16 02:44:42,754 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 02:44:42,755 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 435 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:42,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 472 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:42,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10385 states. [2022-10-16 02:44:42,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10385 to 7825. [2022-10-16 02:44:42,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7825 states, 7824 states have (on average 1.4115541922290389) internal successors, (11044), 7824 states have internal predecessors, (11044), 0 states have call successors, (0), 0 states 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 02:44:42,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7825 states to 7825 states and 11044 transitions. [2022-10-16 02:44:42,943 INFO L78 Accepts]: Start accepts. Automaton has 7825 states and 11044 transitions. Word has length 78 [2022-10-16 02:44:42,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:42,943 INFO L495 AbstractCegarLoop]: Abstraction has 7825 states and 11044 transitions. [2022-10-16 02:44:42,943 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 02:44:42,944 INFO L276 IsEmpty]: Start isEmpty. Operand 7825 states and 11044 transitions. [2022-10-16 02:44:42,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-16 02:44:42,947 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:42,947 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] [2022-10-16 02:44:42,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:44:42,947 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:42,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:42,948 INFO L85 PathProgramCache]: Analyzing trace with hash -32257762, now seen corresponding path program 1 times [2022-10-16 02:44:42,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:42,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524336395] [2022-10-16 02:44:42,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:42,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:43,587 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:44:43,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:43,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524336395] [2022-10-16 02:44:43,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524336395] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:44:43,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055680552] [2022-10-16 02:44:43,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:43,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:44:43,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:44:43,596 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 02:44:43,609 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 02:44:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:43,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 02:44:43,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:44:44,100 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:44:44,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:44:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:44:44,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055680552] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:44:44,359 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:44:44,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 18 [2022-10-16 02:44:44,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992620848] [2022-10-16 02:44:44,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:44:44,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 02:44:44,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:44,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 02:44:44,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2022-10-16 02:44:44,362 INFO L87 Difference]: Start difference. First operand 7825 states and 11044 transitions. Second operand has 18 states, 18 states have (on average 12.277777777777779) internal successors, (221), 18 states have internal predecessors, (221), 0 states have call successors, (0), 0 states 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 02:44:50,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:50,952 INFO L93 Difference]: Finished difference Result 102551 states and 140735 transitions. [2022-10-16 02:44:50,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-10-16 02:44:50,953 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.277777777777779) internal successors, (221), 18 states have internal predecessors, (221), 0 states have call successors, (0), 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 79 [2022-10-16 02:44:50,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:51,278 INFO L225 Difference]: With dead ends: 102551 [2022-10-16 02:44:51,278 INFO L226 Difference]: Without dead ends: 102551 [2022-10-16 02:44:51,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7154 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=3144, Invalid=14148, Unknown=0, NotChecked=0, Total=17292 [2022-10-16 02:44:51,288 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 6005 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6005 SdHoareTripleChecker+Valid, 1884 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:51,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6005 Valid, 1884 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 02:44:51,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102551 states. [2022-10-16 02:44:53,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102551 to 51697. [2022-10-16 02:44:53,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51697 states, 51696 states have (on average 1.3852522438873414) internal successors, (71612), 51696 states have internal predecessors, (71612), 0 states have call successors, (0), 0 states 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 02:44:53,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51697 states to 51697 states and 71612 transitions. [2022-10-16 02:44:53,441 INFO L78 Accepts]: Start accepts. Automaton has 51697 states and 71612 transitions. Word has length 79 [2022-10-16 02:44:53,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:53,442 INFO L495 AbstractCegarLoop]: Abstraction has 51697 states and 71612 transitions. [2022-10-16 02:44:53,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.277777777777779) internal successors, (221), 18 states have internal predecessors, (221), 0 states have call successors, (0), 0 states 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 02:44:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 51697 states and 71612 transitions. [2022-10-16 02:44:53,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 02:44:53,449 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:53,450 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:44:53,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 02:44:53,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 02:44:53,667 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:53,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:53,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1034260685, now seen corresponding path program 1 times [2022-10-16 02:44:53,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:53,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172699278] [2022-10-16 02:44:53,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:53,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:44:54,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:54,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172699278] [2022-10-16 02:44:54,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172699278] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:44:54,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84345922] [2022-10-16 02:44:54,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:54,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:44:54,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:44:54,145 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 02:44:54,152 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 02:44:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:54,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 02:44:54,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:44:54,869 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 02:44:54,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:44:55,585 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 02:44:55,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84345922] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:44:55,586 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:44:55,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2022-10-16 02:44:55,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849604381] [2022-10-16 02:44:55,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:44:55,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 02:44:55,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:55,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 02:44:55,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=556, Unknown=0, NotChecked=0, Total=650 [2022-10-16 02:44:55,589 INFO L87 Difference]: Start difference. First operand 51697 states and 71612 transitions. Second operand has 26 states, 26 states have (on average 8.23076923076923) internal successors, (214), 25 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 02:45:15,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:15,119 INFO L93 Difference]: Finished difference Result 879314 states and 1180310 transitions. [2022-10-16 02:45:15,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 249 states. [2022-10-16 02:45:15,120 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.23076923076923) internal successors, (214), 25 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) Word has length 80 [2022-10-16 02:45:15,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:17,309 INFO L225 Difference]: With dead ends: 879314 [2022-10-16 02:45:17,310 INFO L226 Difference]: Without dead ends: 879314 [2022-10-16 02:45:17,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 271 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30759 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=8700, Invalid=65556, Unknown=0, NotChecked=0, Total=74256 [2022-10-16 02:45:17,326 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 4961 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 2865 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4961 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 3269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:17,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4961 Valid, 2781 Invalid, 3269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2865 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-16 02:45:17,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879314 states. [2022-10-16 02:45:26,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879314 to 266954. [2022-10-16 02:45:27,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266954 states, 266953 states have (on average 1.3704547242398475) internal successors, (365847), 266953 states have internal predecessors, (365847), 0 states have call successors, (0), 0 states 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 02:45:28,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266954 states to 266954 states and 365847 transitions. [2022-10-16 02:45:28,423 INFO L78 Accepts]: Start accepts. Automaton has 266954 states and 365847 transitions. Word has length 80 [2022-10-16 02:45:28,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:28,424 INFO L495 AbstractCegarLoop]: Abstraction has 266954 states and 365847 transitions. [2022-10-16 02:45:28,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.23076923076923) internal successors, (214), 25 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 02:45:28,424 INFO L276 IsEmpty]: Start isEmpty. Operand 266954 states and 365847 transitions. [2022-10-16 02:45:28,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 02:45:28,438 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:28,438 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] [2022-10-16 02:45:28,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 02:45:28,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 02:45:28,653 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:28,655 INFO L85 PathProgramCache]: Analyzing trace with hash 843002779, now seen corresponding path program 1 times [2022-10-16 02:45:28,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:28,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921146761] [2022-10-16 02:45:28,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:28,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:28,791 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 02:45:28,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:28,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921146761] [2022-10-16 02:45:28,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921146761] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:28,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:28,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:45:28,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998625091] [2022-10-16 02:45:28,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:28,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:45:28,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:28,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:45:28,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:45:28,794 INFO L87 Difference]: Start difference. First operand 266954 states and 365847 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 02:45:29,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:29,775 INFO L93 Difference]: Finished difference Result 266956 states and 358308 transitions. [2022-10-16 02:45:29,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:45:29,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-10-16 02:45:29,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:30,123 INFO L225 Difference]: With dead ends: 266956 [2022-10-16 02:45:30,124 INFO L226 Difference]: Without dead ends: 266956 [2022-10-16 02:45:30,124 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 02:45:30,125 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 38 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 209 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 02:45:30,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 209 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:30,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266956 states. [2022-10-16 02:45:33,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266956 to 261362. [2022-10-16 02:45:34,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261362 states, 261361 states have (on average 1.3495318735388984) internal successors, (352715), 261361 states have internal predecessors, (352715), 0 states have call successors, (0), 0 states 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 02:45:35,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261362 states to 261362 states and 352715 transitions. [2022-10-16 02:45:35,282 INFO L78 Accepts]: Start accepts. Automaton has 261362 states and 352715 transitions. Word has length 80 [2022-10-16 02:45:35,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:35,282 INFO L495 AbstractCegarLoop]: Abstraction has 261362 states and 352715 transitions. [2022-10-16 02:45:35,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 02:45:35,282 INFO L276 IsEmpty]: Start isEmpty. Operand 261362 states and 352715 transitions. [2022-10-16 02:45:35,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 02:45:35,287 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:35,287 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] [2022-10-16 02:45:35,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 02:45:35,288 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:35,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:35,288 INFO L85 PathProgramCache]: Analyzing trace with hash 569315067, now seen corresponding path program 1 times [2022-10-16 02:45:35,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:35,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380688883] [2022-10-16 02:45:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:35,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:35,399 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 02:45:35,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:35,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380688883] [2022-10-16 02:45:35,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380688883] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:35,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:35,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:45:35,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778575040] [2022-10-16 02:45:35,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:35,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:45:35,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:35,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:45:35,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:45:35,401 INFO L87 Difference]: Start difference. First operand 261362 states and 352715 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 02:45:36,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:36,604 INFO L93 Difference]: Finished difference Result 146614 states and 192090 transitions. [2022-10-16 02:45:36,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:45:36,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-10-16 02:45:36,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:36,897 INFO L225 Difference]: With dead ends: 146614 [2022-10-16 02:45:36,898 INFO L226 Difference]: Without dead ends: 146614 [2022-10-16 02:45:36,898 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 02:45:36,899 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 32 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 200 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 02:45:36,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 200 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:37,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146614 states. [2022-10-16 02:45:39,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146614 to 142796. [2022-10-16 02:45:39,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142796 states, 142795 states have (on average 1.3184845407752372) internal successors, (188273), 142795 states have internal predecessors, (188273), 0 states have call successors, (0), 0 states 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 02:45:39,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142796 states to 142796 states and 188273 transitions. [2022-10-16 02:45:39,726 INFO L78 Accepts]: Start accepts. Automaton has 142796 states and 188273 transitions. Word has length 80 [2022-10-16 02:45:39,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:39,727 INFO L495 AbstractCegarLoop]: Abstraction has 142796 states and 188273 transitions. [2022-10-16 02:45:39,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 02:45:39,727 INFO L276 IsEmpty]: Start isEmpty. Operand 142796 states and 188273 transitions. [2022-10-16 02:45:39,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 02:45:39,735 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:39,735 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] [2022-10-16 02:45:39,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:45:39,736 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:39,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:39,736 INFO L85 PathProgramCache]: Analyzing trace with hash 493150811, now seen corresponding path program 1 times [2022-10-16 02:45:39,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:39,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518915416] [2022-10-16 02:45:39,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:39,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:39,878 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 02:45:39,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:39,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518915416] [2022-10-16 02:45:39,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518915416] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:39,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:39,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:45:39,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737956332] [2022-10-16 02:45:39,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:39,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:45:39,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:39,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:45:39,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:45:39,882 INFO L87 Difference]: Start difference. First operand 142796 states and 188273 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 02:45:40,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:40,090 INFO L93 Difference]: Finished difference Result 66557 states and 85501 transitions. [2022-10-16 02:45:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:45:40,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-10-16 02:45:40,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:40,191 INFO L225 Difference]: With dead ends: 66557 [2022-10-16 02:45:40,191 INFO L226 Difference]: Without dead ends: 66557 [2022-10-16 02:45:40,192 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 02:45:40,192 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 26 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 191 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 02:45:40,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 191 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:40,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66557 states. [2022-10-16 02:45:41,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66557 to 63720. [2022-10-16 02:45:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63720 states, 63719 states have (on average 1.293805615279587) internal successors, (82440), 63719 states have internal predecessors, (82440), 0 states have call successors, (0), 0 states 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 02:45:41,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63720 states to 63720 states and 82440 transitions. [2022-10-16 02:45:41,660 INFO L78 Accepts]: Start accepts. Automaton has 63720 states and 82440 transitions. Word has length 80 [2022-10-16 02:45:41,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:41,660 INFO L495 AbstractCegarLoop]: Abstraction has 63720 states and 82440 transitions. [2022-10-16 02:45:41,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 02:45:41,661 INFO L276 IsEmpty]: Start isEmpty. Operand 63720 states and 82440 transitions. [2022-10-16 02:45:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 02:45:41,664 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:41,664 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] [2022-10-16 02:45:41,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 02:45:41,664 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:41,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:41,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1898265063, now seen corresponding path program 1 times [2022-10-16 02:45:41,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:41,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141698726] [2022-10-16 02:45:41,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:41,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:41,776 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 02:45:41,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:41,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141698726] [2022-10-16 02:45:41,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141698726] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:41,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:41,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:45:41,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028320505] [2022-10-16 02:45:41,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:41,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:45:41,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:41,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:45:41,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:45:41,780 INFO L87 Difference]: Start difference. First operand 63720 states and 82440 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:45:42,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:42,007 INFO L93 Difference]: Finished difference Result 59201 states and 76018 transitions. [2022-10-16 02:45:42,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:45:42,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-10-16 02:45:42,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:42,073 INFO L225 Difference]: With dead ends: 59201 [2022-10-16 02:45:42,073 INFO L226 Difference]: Without dead ends: 59201 [2022-10-16 02:45:42,073 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 02:45:42,074 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 227 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:42,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 114 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:42,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59201 states. [2022-10-16 02:45:42,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59201 to 59201. [2022-10-16 02:45:42,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59201 states, 59200 states have (on average 1.2840878378378378) internal successors, (76018), 59200 states have internal predecessors, (76018), 0 states have call successors, (0), 0 states 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 02:45:43,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59201 states to 59201 states and 76018 transitions. [2022-10-16 02:45:43,017 INFO L78 Accepts]: Start accepts. Automaton has 59201 states and 76018 transitions. Word has length 80 [2022-10-16 02:45:43,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:43,017 INFO L495 AbstractCegarLoop]: Abstraction has 59201 states and 76018 transitions. [2022-10-16 02:45:43,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:45:43,017 INFO L276 IsEmpty]: Start isEmpty. Operand 59201 states and 76018 transitions. [2022-10-16 02:45:43,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 02:45:43,019 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:43,019 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] [2022-10-16 02:45:43,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 02:45:43,020 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:43,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:43,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1398695975, now seen corresponding path program 1 times [2022-10-16 02:45:43,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:43,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467442400] [2022-10-16 02:45:43,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:43,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:43,445 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 02:45:43,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:43,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467442400] [2022-10-16 02:45:43,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467442400] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:43,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:43,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:45:43,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71810176] [2022-10-16 02:45:43,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:43,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:45:43,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:43,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:45:43,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:45:43,447 INFO L87 Difference]: Start difference. First operand 59201 states and 76018 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 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 02:45:43,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:43,638 INFO L93 Difference]: Finished difference Result 44628 states and 56313 transitions. [2022-10-16 02:45:43,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:45:43,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 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 80 [2022-10-16 02:45:43,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:43,704 INFO L225 Difference]: With dead ends: 44628 [2022-10-16 02:45:43,705 INFO L226 Difference]: Without dead ends: 44628 [2022-10-16 02:45:43,705 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 02:45:43,706 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 269 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:43,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 109 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:43,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44628 states. [2022-10-16 02:45:44,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44628 to 44628. [2022-10-16 02:45:44,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44628 states, 44627 states have (on average 1.261859412463307) internal successors, (56313), 44627 states have internal predecessors, (56313), 0 states have call successors, (0), 0 states 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 02:45:44,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44628 states to 44628 states and 56313 transitions. [2022-10-16 02:45:44,504 INFO L78 Accepts]: Start accepts. Automaton has 44628 states and 56313 transitions. Word has length 80 [2022-10-16 02:45:44,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:44,507 INFO L495 AbstractCegarLoop]: Abstraction has 44628 states and 56313 transitions. [2022-10-16 02:45:44,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 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 02:45:44,507 INFO L276 IsEmpty]: Start isEmpty. Operand 44628 states and 56313 transitions. [2022-10-16 02:45:44,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 02:45:44,516 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:44,517 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] [2022-10-16 02:45:44,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:45:44,517 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:44,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:44,517 INFO L85 PathProgramCache]: Analyzing trace with hash -641948921, now seen corresponding path program 1 times [2022-10-16 02:45:44,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:44,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718041937] [2022-10-16 02:45:44,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:44,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:44,622 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 02:45:44,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:44,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718041937] [2022-10-16 02:45:44,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718041937] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:44,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:44,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:45:44,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116377708] [2022-10-16 02:45:44,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:44,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:45:44,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:44,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:45:44,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:45:44,624 INFO L87 Difference]: Start difference. First operand 44628 states and 56313 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 02:45:44,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:44,790 INFO L93 Difference]: Finished difference Result 35135 states and 43859 transitions. [2022-10-16 02:45:44,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:45:44,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 80 [2022-10-16 02:45:44,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:44,833 INFO L225 Difference]: With dead ends: 35135 [2022-10-16 02:45:44,833 INFO L226 Difference]: Without dead ends: 35135 [2022-10-16 02:45:44,833 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 02:45:44,834 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 275 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:44,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 103 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:45:44,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35135 states. [2022-10-16 02:45:45,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35135 to 35135. [2022-10-16 02:45:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35135 states, 35134 states have (on average 1.2483349462059543) internal successors, (43859), 35134 states have internal predecessors, (43859), 0 states have call successors, (0), 0 states 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 02:45:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35135 states to 35135 states and 43859 transitions. [2022-10-16 02:45:45,468 INFO L78 Accepts]: Start accepts. Automaton has 35135 states and 43859 transitions. Word has length 80 [2022-10-16 02:45:45,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:45,468 INFO L495 AbstractCegarLoop]: Abstraction has 35135 states and 43859 transitions. [2022-10-16 02:45:45,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 02:45:45,469 INFO L276 IsEmpty]: Start isEmpty. Operand 35135 states and 43859 transitions. [2022-10-16 02:45:45,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 02:45:45,475 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:45,475 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] [2022-10-16 02:45:45,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 02:45:45,476 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:45,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:45,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1815873684, now seen corresponding path program 1 times [2022-10-16 02:45:45,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:45,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190053784] [2022-10-16 02:45:45,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:45,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:45,918 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 02:45:45,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:45,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190053784] [2022-10-16 02:45:45,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190053784] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:45:45,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740496327] [2022-10-16 02:45:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:45,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:45:45,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:45:45,921 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 02:45:45,939 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 02:45:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:46,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:45:46,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:45:46,819 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 02:45:46,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:45:47,606 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 02:45:47,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740496327] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:45:47,606 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:45:47,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2022-10-16 02:45:47,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351929398] [2022-10-16 02:45:47,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:45:47,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 02:45:47,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:47,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 02:45:47,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2022-10-16 02:45:47,608 INFO L87 Difference]: Start difference. First operand 35135 states and 43859 transitions. Second operand has 21 states, 21 states have (on average 9.238095238095237) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 02:45:49,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:49,065 INFO L93 Difference]: Finished difference Result 144485 states and 178288 transitions. [2022-10-16 02:45:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 02:45:49,066 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.238095238095237) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 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 81 [2022-10-16 02:45:49,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:49,252 INFO L225 Difference]: With dead ends: 144485 [2022-10-16 02:45:49,252 INFO L226 Difference]: Without dead ends: 144485 [2022-10-16 02:45:49,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 148 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=445, Invalid=1277, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 02:45:49,253 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1562 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1562 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:49,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1562 Valid, 905 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 02:45:49,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144485 states. [2022-10-16 02:45:50,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144485 to 80716. [2022-10-16 02:45:50,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80716 states, 80715 states have (on average 1.2491977947097814) internal successors, (100829), 80715 states have internal predecessors, (100829), 0 states have call successors, (0), 0 states 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 02:45:50,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80716 states to 80716 states and 100829 transitions. [2022-10-16 02:45:50,805 INFO L78 Accepts]: Start accepts. Automaton has 80716 states and 100829 transitions. Word has length 81 [2022-10-16 02:45:50,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:50,805 INFO L495 AbstractCegarLoop]: Abstraction has 80716 states and 100829 transitions. [2022-10-16 02:45:50,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.238095238095237) internal successors, (194), 20 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 02:45:50,806 INFO L276 IsEmpty]: Start isEmpty. Operand 80716 states and 100829 transitions. [2022-10-16 02:45:50,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 02:45:50,808 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:50,809 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] [2022-10-16 02:45:50,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-16 02:45:51,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:45:51,024 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:51,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:51,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1261108214, now seen corresponding path program 1 times [2022-10-16 02:45:51,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:51,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268491731] [2022-10-16 02:45:51,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:51,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:51,130 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 02:45:51,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:51,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268491731] [2022-10-16 02:45:51,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268491731] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:51,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:51,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:45:51,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392909770] [2022-10-16 02:45:51,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:51,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:45:51,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:51,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:45:51,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:45:51,134 INFO L87 Difference]: Start difference. First operand 80716 states and 100829 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 02:45:51,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:51,270 INFO L93 Difference]: Finished difference Result 46836 states and 57074 transitions. [2022-10-16 02:45:51,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:45:51,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-10-16 02:45:51,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:51,339 INFO L225 Difference]: With dead ends: 46836 [2022-10-16 02:45:51,339 INFO L226 Difference]: Without dead ends: 46836 [2022-10-16 02:45:51,340 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 02:45:51,340 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 25 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 164 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 02:45:51,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 164 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:51,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46836 states. [2022-10-16 02:45:52,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46836 to 46834. [2022-10-16 02:45:52,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46834 states, 46833 states have (on average 1.2186492430551108) internal successors, (57073), 46833 states have internal predecessors, (57073), 0 states have call successors, (0), 0 states 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 02:45:52,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46834 states to 46834 states and 57073 transitions. [2022-10-16 02:45:52,584 INFO L78 Accepts]: Start accepts. Automaton has 46834 states and 57073 transitions. Word has length 81 [2022-10-16 02:45:52,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:52,585 INFO L495 AbstractCegarLoop]: Abstraction has 46834 states and 57073 transitions. [2022-10-16 02:45:52,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 02:45:52,585 INFO L276 IsEmpty]: Start isEmpty. Operand 46834 states and 57073 transitions. [2022-10-16 02:45:52,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 02:45:52,587 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:52,588 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] [2022-10-16 02:45:52,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 02:45:52,588 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:52,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:52,588 INFO L85 PathProgramCache]: Analyzing trace with hash 2064020178, now seen corresponding path program 1 times [2022-10-16 02:45:52,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:52,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211698121] [2022-10-16 02:45:52,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:52,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:52,774 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 02:45:52,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:52,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211698121] [2022-10-16 02:45:52,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211698121] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:52,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:52,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:45:52,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465292823] [2022-10-16 02:45:52,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:52,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:45:52,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:52,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:45:52,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:45:52,777 INFO L87 Difference]: Start difference. First operand 46834 states and 57073 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:45:52,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:52,911 INFO L93 Difference]: Finished difference Result 36036 states and 42980 transitions. [2022-10-16 02:45:52,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:45:52,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-10-16 02:45:52,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:52,945 INFO L225 Difference]: With dead ends: 36036 [2022-10-16 02:45:52,945 INFO L226 Difference]: Without dead ends: 36036 [2022-10-16 02:45:52,945 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 02:45:52,947 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 227 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:52,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 108 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:52,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36036 states. [2022-10-16 02:45:53,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36036 to 36036. [2022-10-16 02:45:53,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36036 states, 36035 states have (on average 1.1927292909671152) internal successors, (42980), 36035 states have internal predecessors, (42980), 0 states have call successors, (0), 0 states 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 02:45:53,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36036 states to 36036 states and 42980 transitions. [2022-10-16 02:45:53,713 INFO L78 Accepts]: Start accepts. Automaton has 36036 states and 42980 transitions. Word has length 81 [2022-10-16 02:45:53,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:53,714 INFO L495 AbstractCegarLoop]: Abstraction has 36036 states and 42980 transitions. [2022-10-16 02:45:53,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:45:53,714 INFO L276 IsEmpty]: Start isEmpty. Operand 36036 states and 42980 transitions. [2022-10-16 02:45:53,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:45:53,715 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:53,715 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] [2022-10-16 02:45:53,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 02:45:53,716 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:53,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:53,716 INFO L85 PathProgramCache]: Analyzing trace with hash 2039370684, now seen corresponding path program 1 times [2022-10-16 02:45:53,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:53,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773873939] [2022-10-16 02:45:53,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:53,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:54,457 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 02:45:54,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:54,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773873939] [2022-10-16 02:45:54,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773873939] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:45:54,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058947106] [2022-10-16 02:45:54,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:54,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:45:54,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:45:54,461 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 02:45:54,466 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 02:45:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:54,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 02:45:54,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:45:56,316 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 02:45:56,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:45:57,645 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 02:45:57,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058947106] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:45:57,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:45:57,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 33 [2022-10-16 02:45:57,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141495857] [2022-10-16 02:45:57,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:45:57,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 02:45:57,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:57,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 02:45:57,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=928, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 02:45:57,653 INFO L87 Difference]: Start difference. First operand 36036 states and 42980 transitions. Second operand has 33 states, 33 states have (on average 6.787878787878788) internal successors, (224), 33 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:46:00,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:46:00,285 INFO L93 Difference]: Finished difference Result 85725 states and 99746 transitions. [2022-10-16 02:46:00,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 02:46:00,288 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 6.787878787878788) internal successors, (224), 33 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-10-16 02:46:00,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:46:00,497 INFO L225 Difference]: With dead ends: 85725 [2022-10-16 02:46:00,497 INFO L226 Difference]: Without dead ends: 85725 [2022-10-16 02:46:00,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 144 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=632, Invalid=2448, Unknown=0, NotChecked=0, Total=3080 [2022-10-16 02:46:00,499 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 2109 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 2171 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:46:00,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 2171 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:46:00,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85725 states. [2022-10-16 02:46:01,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85725 to 32509. [2022-10-16 02:46:01,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32509 states, 32508 states have (on average 1.1909068536975513) internal successors, (38714), 32508 states have internal predecessors, (38714), 0 states have call successors, (0), 0 states 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 02:46:01,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32509 states to 32509 states and 38714 transitions. [2022-10-16 02:46:01,242 INFO L78 Accepts]: Start accepts. Automaton has 32509 states and 38714 transitions. Word has length 82 [2022-10-16 02:46:01,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:46:01,242 INFO L495 AbstractCegarLoop]: Abstraction has 32509 states and 38714 transitions. [2022-10-16 02:46:01,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.787878787878788) internal successors, (224), 33 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:46:01,243 INFO L276 IsEmpty]: Start isEmpty. Operand 32509 states and 38714 transitions. [2022-10-16 02:46:01,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:46:01,244 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:46:01,244 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] [2022-10-16 02:46:01,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 02:46:01,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 02:46:01,445 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:46:01,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:46:01,448 INFO L85 PathProgramCache]: Analyzing trace with hash 177058306, now seen corresponding path program 1 times [2022-10-16 02:46:01,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:46:01,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451956009] [2022-10-16 02:46:01,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:46:01,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:46:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:46:03,034 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 02:46:03,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:46:03,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451956009] [2022-10-16 02:46:03,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451956009] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:46:03,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599403208] [2022-10-16 02:46:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:46:03,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:46:03,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:46:03,036 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 02:46:03,037 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 02:46:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:46:03,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-16 02:46:03,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:46:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:46:09,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:46:16,652 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 02:46:16,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599403208] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:46:16,653 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:46:16,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 30] total 80 [2022-10-16 02:46:16,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656835293] [2022-10-16 02:46:16,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:46:16,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-10-16 02:46:16,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:46:16,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-10-16 02:46:16,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=569, Invalid=5751, Unknown=0, NotChecked=0, Total=6320 [2022-10-16 02:46:16,656 INFO L87 Difference]: Start difference. First operand 32509 states and 38714 transitions. Second operand has 80 states, 80 states have (on average 2.875) internal successors, (230), 80 states have internal predecessors, (230), 0 states have call successors, (0), 0 states 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 02:47:32,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:47:32,502 INFO L93 Difference]: Finished difference Result 100483 states and 116924 transitions. [2022-10-16 02:47:32,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2022-10-16 02:47:32,502 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 2.875) internal successors, (230), 80 states have internal predecessors, (230), 0 states have call successors, (0), 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 02:47:32,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:47:32,621 INFO L225 Difference]: With dead ends: 100483 [2022-10-16 02:47:32,621 INFO L226 Difference]: Without dead ends: 100483 [2022-10-16 02:47:32,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 297 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30465 ImplicationChecksByTransitivity, 75.6s TimeCoverageRelationStatistics Valid=9886, Invalid=79216, Unknown=0, NotChecked=0, Total=89102 [2022-10-16 02:47:32,631 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 4814 mSDsluCounter, 11591 mSDsCounter, 0 mSdLazyCounter, 5094 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4814 SdHoareTripleChecker+Valid, 11928 SdHoareTripleChecker+Invalid, 5617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 5094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-10-16 02:47:32,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4814 Valid, 11928 Invalid, 5617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 5094 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-10-16 02:47:32,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100483 states. [2022-10-16 02:47:33,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100483 to 40108. [2022-10-16 02:47:33,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40108 states, 40107 states have (on average 1.194878699478894) internal successors, (47923), 40107 states have internal predecessors, (47923), 0 states have call successors, (0), 0 states 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 02:47:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40108 states to 40108 states and 47923 transitions. [2022-10-16 02:47:33,338 INFO L78 Accepts]: Start accepts. Automaton has 40108 states and 47923 transitions. Word has length 82 [2022-10-16 02:47:33,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:47:33,338 INFO L495 AbstractCegarLoop]: Abstraction has 40108 states and 47923 transitions. [2022-10-16 02:47:33,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 2.875) internal successors, (230), 80 states have internal predecessors, (230), 0 states have call successors, (0), 0 states 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 02:47:33,339 INFO L276 IsEmpty]: Start isEmpty. Operand 40108 states and 47923 transitions. [2022-10-16 02:47:33,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:47:33,339 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:47:33,340 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] [2022-10-16 02:47:33,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 02:47:33,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 02:47:33,541 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:47:33,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:47:33,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1891044319, now seen corresponding path program 1 times [2022-10-16 02:47:33,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:47:33,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429276237] [2022-10-16 02:47:33,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:47:33,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:47:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:47:34,232 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 02:47:34,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:47:34,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429276237] [2022-10-16 02:47:34,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429276237] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:47:34,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312871875] [2022-10-16 02:47:34,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:47:34,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:47:34,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:47:34,234 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:47:34,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 02:47:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:47:34,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 02:47:34,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:47:35,241 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 02:47:35,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:47:36,826 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 02:47:36,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312871875] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:47:36,827 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:47:36,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 32 [2022-10-16 02:47:36,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125584878] [2022-10-16 02:47:36,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:47:36,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 02:47:36,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:47:36,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 02:47:36,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=870, Unknown=0, NotChecked=0, Total=992 [2022-10-16 02:47:36,829 INFO L87 Difference]: Start difference. First operand 40108 states and 47923 transitions. Second operand has 32 states, 32 states have (on average 6.15625) internal successors, (197), 32 states have internal predecessors, (197), 0 states have call successors, (0), 0 states 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 02:47:38,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:47:38,501 INFO L93 Difference]: Finished difference Result 57181 states and 69132 transitions. [2022-10-16 02:47:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 02:47:38,501 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 6.15625) internal successors, (197), 32 states have internal predecessors, (197), 0 states have call successors, (0), 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 02:47:38,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:47:38,561 INFO L225 Difference]: With dead ends: 57181 [2022-10-16 02:47:38,561 INFO L226 Difference]: Without dead ends: 57181 [2022-10-16 02:47:38,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=405, Invalid=1665, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 02:47:38,562 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1128 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 2074 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:47:38,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1128 Valid, 2074 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:47:38,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57181 states. [2022-10-16 02:47:39,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57181 to 34056. [2022-10-16 02:47:39,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34056 states, 34055 states have (on average 1.1881074732051093) internal successors, (40461), 34055 states have internal predecessors, (40461), 0 states have call successors, (0), 0 states 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 02:47:39,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34056 states to 34056 states and 40461 transitions. [2022-10-16 02:47:39,198 INFO L78 Accepts]: Start accepts. Automaton has 34056 states and 40461 transitions. Word has length 82 [2022-10-16 02:47:39,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:47:39,199 INFO L495 AbstractCegarLoop]: Abstraction has 34056 states and 40461 transitions. [2022-10-16 02:47:39,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 6.15625) internal successors, (197), 32 states have internal predecessors, (197), 0 states have call successors, (0), 0 states 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 02:47:39,199 INFO L276 IsEmpty]: Start isEmpty. Operand 34056 states and 40461 transitions. [2022-10-16 02:47:39,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 02:47:39,200 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:47:39,200 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] [2022-10-16 02:47:39,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 02:47:39,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 02:47:39,401 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:47:39,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:47:39,403 INFO L85 PathProgramCache]: Analyzing trace with hash -432311863, now seen corresponding path program 1 times [2022-10-16 02:47:39,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:47:39,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796994953] [2022-10-16 02:47:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:47:39,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:47:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:47:40,479 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:47:40,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:47:40,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796994953] [2022-10-16 02:47:40,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796994953] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:47:40,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451533949] [2022-10-16 02:47:40,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:47:40,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:47:40,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:47:40,482 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:47:40,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 02:47:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:47:40,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 02:47:40,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:47:42,780 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:47:42,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:47:43,988 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:47:43,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451533949] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:47:43,988 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:47:43,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 36 [2022-10-16 02:47:43,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785764040] [2022-10-16 02:47:43,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:47:43,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 02:47:43,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:47:43,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 02:47:43,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1150, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 02:47:43,990 INFO L87 Difference]: Start difference. First operand 34056 states and 40461 transitions. Second operand has 36 states, 36 states have (on average 6.194444444444445) internal successors, (223), 36 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 02:48:04,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:48:04,787 INFO L93 Difference]: Finished difference Result 58226 states and 69075 transitions. [2022-10-16 02:48:04,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-10-16 02:48:04,788 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 6.194444444444445) internal successors, (223), 36 states have internal predecessors, (223), 0 states have call successors, (0), 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 02:48:04,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:48:04,855 INFO L225 Difference]: With dead ends: 58226 [2022-10-16 02:48:04,855 INFO L226 Difference]: Without dead ends: 58226 [2022-10-16 02:48:04,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6051 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=3125, Invalid=17467, Unknown=0, NotChecked=0, Total=20592 [2022-10-16 02:48:04,858 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 2006 mSDsluCounter, 9351 mSDsCounter, 0 mSdLazyCounter, 2866 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 9892 SdHoareTripleChecker+Invalid, 3003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 2866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-16 02:48:04,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2006 Valid, 9892 Invalid, 3003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 2866 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-16 02:48:04,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58226 states. [2022-10-16 02:48:05,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58226 to 21580. [2022-10-16 02:48:05,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21580 states, 21579 states have (on average 1.1871263728625052) internal successors, (25617), 21579 states have internal predecessors, (25617), 0 states have call successors, (0), 0 states 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 02:48:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21580 states to 21580 states and 25617 transitions. [2022-10-16 02:48:05,259 INFO L78 Accepts]: Start accepts. Automaton has 21580 states and 25617 transitions. Word has length 83 [2022-10-16 02:48:05,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:05,259 INFO L495 AbstractCegarLoop]: Abstraction has 21580 states and 25617 transitions. [2022-10-16 02:48:05,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 6.194444444444445) internal successors, (223), 36 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 02:48:05,260 INFO L276 IsEmpty]: Start isEmpty. Operand 21580 states and 25617 transitions. [2022-10-16 02:48:05,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-10-16 02:48:05,263 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:05,263 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:48:05,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 02:48:05,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:48:05,472 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:05,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:05,473 INFO L85 PathProgramCache]: Analyzing trace with hash 462755984, now seen corresponding path program 1 times [2022-10-16 02:48:05,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:05,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604119075] [2022-10-16 02:48:05,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:05,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:06,418 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 30 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:06,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:06,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604119075] [2022-10-16 02:48:06,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604119075] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:48:06,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902492541] [2022-10-16 02:48:06,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:06,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:48:06,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:48:06,420 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:48:06,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 02:48:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:06,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 02:48:06,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:48:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 45 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:07,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:48:09,438 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 60 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:09,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902492541] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:48:09,438 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:48:09,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2022-10-16 02:48:09,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91859769] [2022-10-16 02:48:09,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:48:09,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 02:48:09,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:48:09,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 02:48:09,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=959, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 02:48:09,441 INFO L87 Difference]: Start difference. First operand 21580 states and 25617 transitions. Second operand has 33 states, 33 states have (on average 11.151515151515152) internal successors, (368), 33 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)