/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:38:09,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:38:09,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:38:09,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 02:38:09,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 02:38:09,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 02:38:09,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 02:38:09,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 02:38:09,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 02:38:09,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 02:38:09,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 02:38:09,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 02:38:09,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 02:38:09,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 02:38:09,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 02:38:09,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 02:38:09,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 02:38:09,446 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 02:38:09,504 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:38:09,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:38:09,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:38:09,505 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:38:09,507 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:38:09,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:38:09,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:38:09,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:38:09,510 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:38:09,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:38:09,510 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:38:09,510 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:38:09,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:38:09,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:38:09,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:38:09,512 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:38:09,512 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:38:09,512 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:38:09,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:38:09,513 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:38:09,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:38:09,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:38:09,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:38:09,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:38:09,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:38:09,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:38:09,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:38:09,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:38:09,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:38:09,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:38:09,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:38:09,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:38:10,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:38:10,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:38:10,011 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:38:10,011 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:38:10,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c [2022-10-16 02:38:10,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d3ae27d/773dcd6225bd4c74a53909a137baad8c/FLAGb62332d6f [2022-10-16 02:38:10,848 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:38:10,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c [2022-10-16 02:38:10,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d3ae27d/773dcd6225bd4c74a53909a137baad8c/FLAGb62332d6f [2022-10-16 02:38:11,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d3ae27d/773dcd6225bd4c74a53909a137baad8c [2022-10-16 02:38:11,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:38:11,205 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:38:11,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:38:11,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:38:11,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:38:11,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2550bb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11, skipping insertion in model container [2022-10-16 02:38:11,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:38:11,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:38:11,477 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c[6691,6704] [2022-10-16 02:38:11,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:38:11,493 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:38:11,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c[6691,6704] [2022-10-16 02:38:11,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:38:11,566 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:38:11,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11 WrapperNode [2022-10-16 02:38:11,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:38:11,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:38:11,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:38:11,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:38:11,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,646 INFO L138 Inliner]: procedures = 21, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 246 [2022-10-16 02:38:11,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:38:11,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:38:11,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:38:11,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:38:11,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,683 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:38:11,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:38:11,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:38:11,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:38:11,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11" (1/1) ... [2022-10-16 02:38:11,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:38:11,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:38:11,750 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 02:38:11,764 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 02:38:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:38:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:38:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:38:11,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:38:11,924 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:38:11,927 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:38:12,611 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:38:12,621 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:38:12,621 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:38:12,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:38:12 BoogieIcfgContainer [2022-10-16 02:38:12,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:38:12,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:38:12,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:38:12,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:38:12,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:38:11" (1/3) ... [2022-10-16 02:38:12,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28511a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:38:12, skipping insertion in model container [2022-10-16 02:38:12,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:38:11" (2/3) ... [2022-10-16 02:38:12,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28511a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:38:12, skipping insertion in model container [2022-10-16 02:38:12,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:38:12" (3/3) ... [2022-10-16 02:38:12,636 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c [2022-10-16 02:38:12,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:38:12,661 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:38:12,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:38:12,734 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;@3e9c62c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:38:12,735 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:38:12,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 74 states have (on average 1.6891891891891893) internal successors, (125), 76 states have internal predecessors, (125), 0 states have call successors, (0), 0 states 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 02:38:12,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 02:38:12,749 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:12,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:38:12,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:12,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:12,757 INFO L85 PathProgramCache]: Analyzing trace with hash -127172749, now seen corresponding path program 1 times [2022-10-16 02:38:12,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:12,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935369881] [2022-10-16 02:38:12,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:12,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:13,083 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 02:38:13,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:13,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935369881] [2022-10-16 02:38:13,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935369881] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:13,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:13,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:38:13,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104461978] [2022-10-16 02:38:13,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:13,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:38:13,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:13,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:38:13,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:38:13,141 INFO L87 Difference]: Start difference. First operand has 77 states, 74 states have (on average 1.6891891891891893) internal successors, (125), 76 states have internal predecessors, (125), 0 states have call successors, (0), 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 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 02:38:13,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:13,261 INFO L93 Difference]: Finished difference Result 129 states and 201 transitions. [2022-10-16 02:38:13,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:38:13,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 02:38:13,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:13,286 INFO L225 Difference]: With dead ends: 129 [2022-10-16 02:38:13,286 INFO L226 Difference]: Without dead ends: 124 [2022-10-16 02:38:13,290 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 02:38:13,299 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 79 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:13,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 449 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:38:13,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-16 02:38:13,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 76. [2022-10-16 02:38:13,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 75 states have internal predecessors, (104), 0 states have call successors, (0), 0 states 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 02:38:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 104 transitions. [2022-10-16 02:38:13,355 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 104 transitions. Word has length 10 [2022-10-16 02:38:13,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:13,355 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 104 transitions. [2022-10-16 02:38:13,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 02:38:13,356 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2022-10-16 02:38:13,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 02:38:13,358 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:13,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:38:13,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:38:13,359 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:13,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:13,361 INFO L85 PathProgramCache]: Analyzing trace with hash 36726459, now seen corresponding path program 1 times [2022-10-16 02:38:13,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:13,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109696945] [2022-10-16 02:38:13,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:13,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:13,624 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 02:38:13,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:13,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109696945] [2022-10-16 02:38:13,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109696945] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:13,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:13,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:38:13,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570775733] [2022-10-16 02:38:13,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:13,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:38:13,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:13,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:38:13,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:38:13,630 INFO L87 Difference]: Start difference. First operand 76 states and 104 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:38:13,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:13,662 INFO L93 Difference]: Finished difference Result 116 states and 163 transitions. [2022-10-16 02:38:13,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:38:13,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 02:38:13,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:13,668 INFO L225 Difference]: With dead ends: 116 [2022-10-16 02:38:13,668 INFO L226 Difference]: Without dead ends: 116 [2022-10-16 02:38:13,669 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 02:38:13,671 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 64 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 216 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 02:38:13,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 216 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:13,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-10-16 02:38:13,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 111. [2022-10-16 02:38:13,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 109 states have (on average 1.4678899082568808) internal successors, (160), 110 states have internal predecessors, (160), 0 states have call successors, (0), 0 states 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 02:38:13,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 160 transitions. [2022-10-16 02:38:13,688 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 160 transitions. Word has length 41 [2022-10-16 02:38:13,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:13,689 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 160 transitions. [2022-10-16 02:38:13,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:38:13,689 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 160 transitions. [2022-10-16 02:38:13,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 02:38:13,691 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:13,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:38:13,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:38:13,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:13,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:13,693 INFO L85 PathProgramCache]: Analyzing trace with hash 941880883, now seen corresponding path program 1 times [2022-10-16 02:38:13,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:13,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684305256] [2022-10-16 02:38:13,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:13,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:13,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:13,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:13,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684305256] [2022-10-16 02:38:13,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684305256] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:13,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:13,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:38:13,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261708894] [2022-10-16 02:38:13,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:13,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:38:13,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:13,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:38:13,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:38:13,840 INFO L87 Difference]: Start difference. First operand 111 states and 160 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:38:13,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:13,881 INFO L93 Difference]: Finished difference Result 174 states and 254 transitions. [2022-10-16 02:38:13,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:38:13,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-10-16 02:38:13,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:13,885 INFO L225 Difference]: With dead ends: 174 [2022-10-16 02:38:13,886 INFO L226 Difference]: Without dead ends: 174 [2022-10-16 02:38:13,889 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 02:38:13,893 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 59 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 207 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 02:38:13,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 207 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:13,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-10-16 02:38:13,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 169. [2022-10-16 02:38:13,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 167 states have (on average 1.5029940119760479) internal successors, (251), 168 states have internal predecessors, (251), 0 states have call successors, (0), 0 states 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 02:38:13,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 251 transitions. [2022-10-16 02:38:13,933 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 251 transitions. Word has length 42 [2022-10-16 02:38:13,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:13,933 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 251 transitions. [2022-10-16 02:38:13,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:38:13,935 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 251 transitions. [2022-10-16 02:38:13,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 02:38:13,940 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:13,940 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] [2022-10-16 02:38:13,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:38:13,941 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:13,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:13,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1294438837, now seen corresponding path program 1 times [2022-10-16 02:38:13,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:13,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571364022] [2022-10-16 02:38:13,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:13,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:14,171 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 02:38:14,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:14,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571364022] [2022-10-16 02:38:14,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571364022] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:14,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:14,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:38:14,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445095066] [2022-10-16 02:38:14,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:14,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:38:14,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:14,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:38:14,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:38:14,176 INFO L87 Difference]: Start difference. First operand 169 states and 251 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 02:38:14,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:14,266 INFO L93 Difference]: Finished difference Result 604 states and 924 transitions. [2022-10-16 02:38:14,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:38:14,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2022-10-16 02:38:14,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:14,296 INFO L225 Difference]: With dead ends: 604 [2022-10-16 02:38:14,296 INFO L226 Difference]: Without dead ends: 604 [2022-10-16 02:38:14,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:38:14,298 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 450 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:14,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 510 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:14,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2022-10-16 02:38:14,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 309. [2022-10-16 02:38:14,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 307 states have (on average 1.521172638436482) internal successors, (467), 308 states have internal predecessors, (467), 0 states have call successors, (0), 0 states 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 02:38:14,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 467 transitions. [2022-10-16 02:38:14,358 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 467 transitions. Word has length 43 [2022-10-16 02:38:14,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:14,358 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 467 transitions. [2022-10-16 02:38:14,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 02:38:14,364 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 467 transitions. [2022-10-16 02:38:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 02:38:14,366 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:14,366 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] [2022-10-16 02:38:14,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:38:14,369 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:14,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:14,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1856221715, now seen corresponding path program 1 times [2022-10-16 02:38:14,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:14,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154200172] [2022-10-16 02:38:14,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:14,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:14,527 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 02:38:14,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:14,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154200172] [2022-10-16 02:38:14,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154200172] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:14,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:14,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:38:14,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930357366] [2022-10-16 02:38:14,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:14,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:38:14,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:14,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:38:14,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:38:14,531 INFO L87 Difference]: Start difference. First operand 309 states and 467 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states 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 02:38:14,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:14,612 INFO L93 Difference]: Finished difference Result 807 states and 1221 transitions. [2022-10-16 02:38:14,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:38:14,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-10-16 02:38:14,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:14,619 INFO L225 Difference]: With dead ends: 807 [2022-10-16 02:38:14,620 INFO L226 Difference]: Without dead ends: 807 [2022-10-16 02:38:14,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:38:14,622 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 237 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:14,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 288 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:38:14,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2022-10-16 02:38:14,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 797. [2022-10-16 02:38:14,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 795 states have (on average 1.528301886792453) internal successors, (1215), 796 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states 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 02:38:14,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1215 transitions. [2022-10-16 02:38:14,653 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1215 transitions. Word has length 44 [2022-10-16 02:38:14,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:14,654 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 1215 transitions. [2022-10-16 02:38:14,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states 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 02:38:14,655 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1215 transitions. [2022-10-16 02:38:14,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 02:38:14,657 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:14,657 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] [2022-10-16 02:38:14,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:38:14,658 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:14,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:14,658 INFO L85 PathProgramCache]: Analyzing trace with hash -416789945, now seen corresponding path program 1 times [2022-10-16 02:38:14,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:14,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617431723] [2022-10-16 02:38:14,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:14,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:14,732 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 02:38:14,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:14,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617431723] [2022-10-16 02:38:14,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617431723] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:14,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:14,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:38:14,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970706549] [2022-10-16 02:38:14,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:14,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:38:14,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:14,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:38:14,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:38:14,736 INFO L87 Difference]: Start difference. First operand 797 states and 1215 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states 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 02:38:14,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:14,759 INFO L93 Difference]: Finished difference Result 1354 states and 2022 transitions. [2022-10-16 02:38:14,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:38:14,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-10-16 02:38:14,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:14,769 INFO L225 Difference]: With dead ends: 1354 [2022-10-16 02:38:14,770 INFO L226 Difference]: Without dead ends: 1354 [2022-10-16 02:38:14,770 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 02:38:14,776 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 68 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 240 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 02:38:14,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 240 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:14,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2022-10-16 02:38:14,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1349. [2022-10-16 02:38:14,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1347 states have (on average 1.4988864142538976) internal successors, (2019), 1348 states have internal predecessors, (2019), 0 states have call successors, (0), 0 states 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 02:38:14,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 2019 transitions. [2022-10-16 02:38:14,823 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 2019 transitions. Word has length 44 [2022-10-16 02:38:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:14,824 INFO L495 AbstractCegarLoop]: Abstraction has 1349 states and 2019 transitions. [2022-10-16 02:38:14,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states 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 02:38:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 2019 transitions. [2022-10-16 02:38:14,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 02:38:14,829 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:14,830 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] [2022-10-16 02:38:14,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:38:14,831 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:14,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:14,832 INFO L85 PathProgramCache]: Analyzing trace with hash 278098778, now seen corresponding path program 1 times [2022-10-16 02:38:14,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:14,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006002101] [2022-10-16 02:38:14,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:14,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:15,218 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 02:38:15,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:15,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006002101] [2022-10-16 02:38:15,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006002101] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:15,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:15,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 02:38:15,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489721241] [2022-10-16 02:38:15,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:15,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 02:38:15,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:15,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 02:38:15,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:38:15,223 INFO L87 Difference]: Start difference. First operand 1349 states and 2019 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 02:38:15,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:15,414 INFO L93 Difference]: Finished difference Result 2864 states and 4157 transitions. [2022-10-16 02:38:15,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:38:15,415 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-10-16 02:38:15,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:15,434 INFO L225 Difference]: With dead ends: 2864 [2022-10-16 02:38:15,436 INFO L226 Difference]: Without dead ends: 2864 [2022-10-16 02:38:15,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2022-10-16 02:38:15,442 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 465 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:15,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 595 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:38:15,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2022-10-16 02:38:15,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 1493. [2022-10-16 02:38:15,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1491 states have (on average 1.4507042253521127) internal successors, (2163), 1492 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states 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 02:38:15,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2163 transitions. [2022-10-16 02:38:15,504 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2163 transitions. Word has length 45 [2022-10-16 02:38:15,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:15,505 INFO L495 AbstractCegarLoop]: Abstraction has 1493 states and 2163 transitions. [2022-10-16 02:38:15,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states 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 02:38:15,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2163 transitions. [2022-10-16 02:38:15,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 02:38:15,507 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:15,507 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] [2022-10-16 02:38:15,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:38:15,508 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:15,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:15,508 INFO L85 PathProgramCache]: Analyzing trace with hash 83706006, now seen corresponding path program 1 times [2022-10-16 02:38:15,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:15,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427154019] [2022-10-16 02:38:15,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:15,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:15,582 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 02:38:15,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:15,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427154019] [2022-10-16 02:38:15,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427154019] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:15,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:15,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:38:15,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784817460] [2022-10-16 02:38:15,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:15,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:38:15,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:15,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:38:15,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:38:15,585 INFO L87 Difference]: Start difference. First operand 1493 states and 2163 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states 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 02:38:15,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:15,608 INFO L93 Difference]: Finished difference Result 2047 states and 2943 transitions. [2022-10-16 02:38:15,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:38:15,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-10-16 02:38:15,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:15,620 INFO L225 Difference]: With dead ends: 2047 [2022-10-16 02:38:15,621 INFO L226 Difference]: Without dead ends: 2047 [2022-10-16 02:38:15,621 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 02:38:15,622 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 50 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:15,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 180 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:15,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2022-10-16 02:38:15,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 2042. [2022-10-16 02:38:15,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2042 states, 2040 states have (on average 1.4411764705882353) internal successors, (2940), 2041 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states 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 02:38:15,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2042 states to 2042 states and 2940 transitions. [2022-10-16 02:38:15,683 INFO L78 Accepts]: Start accepts. Automaton has 2042 states and 2940 transitions. Word has length 46 [2022-10-16 02:38:15,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:15,683 INFO L495 AbstractCegarLoop]: Abstraction has 2042 states and 2940 transitions. [2022-10-16 02:38:15,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states 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 02:38:15,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2042 states and 2940 transitions. [2022-10-16 02:38:15,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 02:38:15,685 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:15,685 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] [2022-10-16 02:38:15,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:38:15,685 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:15,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:15,686 INFO L85 PathProgramCache]: Analyzing trace with hash -146325535, now seen corresponding path program 1 times [2022-10-16 02:38:15,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:15,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613037415] [2022-10-16 02:38:15,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:15,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:15,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:15,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613037415] [2022-10-16 02:38:15,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613037415] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:38:15,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848356275] [2022-10-16 02:38:15,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:15,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:38:15,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:38:15,764 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 02:38:15,796 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 02:38:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:15,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 02:38:15,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:38:15,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 02:38:15,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:38:15,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848356275] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:15,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:38:15,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 02:38:15,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199093407] [2022-10-16 02:38:15,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:15,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:38:15,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:15,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:38:15,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:38:15,962 INFO L87 Difference]: Start difference. First operand 2042 states and 2940 transitions. Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states 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 02:38:15,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:15,976 INFO L93 Difference]: Finished difference Result 2041 states and 2939 transitions. [2022-10-16 02:38:15,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:38:15,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-10-16 02:38:15,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:15,987 INFO L225 Difference]: With dead ends: 2041 [2022-10-16 02:38:15,987 INFO L226 Difference]: Without dead ends: 2039 [2022-10-16 02:38:15,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:38:15,988 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:15,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 102 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:15,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2022-10-16 02:38:16,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 2039. [2022-10-16 02:38:16,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 2038 states have (on average 1.408243375858685) internal successors, (2870), 2038 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states 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 02:38:16,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2870 transitions. [2022-10-16 02:38:16,040 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2870 transitions. Word has length 48 [2022-10-16 02:38:16,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:16,041 INFO L495 AbstractCegarLoop]: Abstraction has 2039 states and 2870 transitions. [2022-10-16 02:38:16,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states 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 02:38:16,041 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2870 transitions. [2022-10-16 02:38:16,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 02:38:16,043 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:16,044 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] [2022-10-16 02:38:16,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 02:38:16,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:38:16,260 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:16,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:16,261 INFO L85 PathProgramCache]: Analyzing trace with hash -500810539, now seen corresponding path program 1 times [2022-10-16 02:38:16,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:16,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289027927] [2022-10-16 02:38:16,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:16,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:16,475 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:38:16,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:16,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289027927] [2022-10-16 02:38:16,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289027927] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:38:16,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721658895] [2022-10-16 02:38:16,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:16,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:38:16,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:38:16,477 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 02:38:16,500 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 02:38:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:16,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 02:38:16,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:38:16,808 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:38:16,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:38:17,223 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:38:17,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721658895] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:38:17,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:38:17,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2022-10-16 02:38:17,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962206686] [2022-10-16 02:38:17,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:38:17,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 02:38:17,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:17,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 02:38:17,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:38:17,226 INFO L87 Difference]: Start difference. First operand 2039 states and 2870 transitions. Second operand has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:38:17,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:17,324 INFO L93 Difference]: Finished difference Result 4862 states and 6824 transitions. [2022-10-16 02:38:17,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:38:17,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-16 02:38:17,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:17,349 INFO L225 Difference]: With dead ends: 4862 [2022-10-16 02:38:17,349 INFO L226 Difference]: Without dead ends: 4862 [2022-10-16 02:38:17,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=58, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:38:17,350 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 484 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:17,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 657 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:17,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4862 states. [2022-10-16 02:38:17,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4862 to 4639. [2022-10-16 02:38:17,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4638 states have (on average 1.4036222509702458) internal successors, (6510), 4638 states have internal predecessors, (6510), 0 states have call successors, (0), 0 states 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 02:38:17,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 6510 transitions. [2022-10-16 02:38:17,498 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 6510 transitions. Word has length 65 [2022-10-16 02:38:17,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:17,499 INFO L495 AbstractCegarLoop]: Abstraction has 4639 states and 6510 transitions. [2022-10-16 02:38:17,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 9 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:38:17,499 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 6510 transitions. [2022-10-16 02:38:17,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 02:38:17,501 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:17,502 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] [2022-10-16 02:38:17,542 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 02:38:17,716 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,SelfDestructingSolverStorable9 [2022-10-16 02:38:17,717 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:17,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:17,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1457272171, now seen corresponding path program 1 times [2022-10-16 02:38:17,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:17,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470567041] [2022-10-16 02:38:17,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:17,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:17,841 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 02:38:17,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:17,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470567041] [2022-10-16 02:38:17,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470567041] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:17,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:17,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:38:17,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597723179] [2022-10-16 02:38:17,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:17,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:38:17,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:17,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:38:17,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:38:17,852 INFO L87 Difference]: Start difference. First operand 4639 states and 6510 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 02:38:17,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:17,961 INFO L93 Difference]: Finished difference Result 6883 states and 9655 transitions. [2022-10-16 02:38:17,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:38:17,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 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 66 [2022-10-16 02:38:17,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:17,999 INFO L225 Difference]: With dead ends: 6883 [2022-10-16 02:38:18,000 INFO L226 Difference]: Without dead ends: 6883 [2022-10-16 02:38:18,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:38:18,001 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 269 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:18,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 425 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:18,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6883 states. [2022-10-16 02:38:18,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6883 to 5453. [2022-10-16 02:38:18,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5453 states, 5452 states have (on average 1.4013206162876009) internal successors, (7640), 5452 states have internal predecessors, (7640), 0 states have call successors, (0), 0 states 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 02:38:18,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5453 states to 5453 states and 7640 transitions. [2022-10-16 02:38:18,160 INFO L78 Accepts]: Start accepts. Automaton has 5453 states and 7640 transitions. Word has length 66 [2022-10-16 02:38:18,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:18,161 INFO L495 AbstractCegarLoop]: Abstraction has 5453 states and 7640 transitions. [2022-10-16 02:38:18,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states 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 02:38:18,161 INFO L276 IsEmpty]: Start isEmpty. Operand 5453 states and 7640 transitions. [2022-10-16 02:38:18,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 02:38:18,163 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:18,163 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] [2022-10-16 02:38:18,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:38:18,164 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:18,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:18,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1029926107, now seen corresponding path program 1 times [2022-10-16 02:38:18,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:18,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217533282] [2022-10-16 02:38:18,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:18,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:18,250 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:18,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:18,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217533282] [2022-10-16 02:38:18,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217533282] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:18,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:18,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:38:18,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146453214] [2022-10-16 02:38:18,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:18,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:38:18,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:18,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:38:18,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:38:18,253 INFO L87 Difference]: Start difference. First operand 5453 states and 7640 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 02:38:18,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:18,353 INFO L93 Difference]: Finished difference Result 8374 states and 11443 transitions. [2022-10-16 02:38:18,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:38:18,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-10-16 02:38:18,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:18,406 INFO L225 Difference]: With dead ends: 8374 [2022-10-16 02:38:18,406 INFO L226 Difference]: Without dead ends: 8374 [2022-10-16 02:38:18,407 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 02:38:18,408 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 45 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:18,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 204 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:18,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8374 states. [2022-10-16 02:38:18,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8374 to 7884. [2022-10-16 02:38:18,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7884 states, 7883 states have (on average 1.3746035773182799) internal successors, (10836), 7883 states have internal predecessors, (10836), 0 states have call successors, (0), 0 states 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 02:38:18,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 10836 transitions. [2022-10-16 02:38:18,664 INFO L78 Accepts]: Start accepts. Automaton has 7884 states and 10836 transitions. Word has length 66 [2022-10-16 02:38:18,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:18,665 INFO L495 AbstractCegarLoop]: Abstraction has 7884 states and 10836 transitions. [2022-10-16 02:38:18,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 02:38:18,666 INFO L276 IsEmpty]: Start isEmpty. Operand 7884 states and 10836 transitions. [2022-10-16 02:38:18,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 02:38:18,672 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:18,672 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:38:18,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:38:18,672 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:18,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:18,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2088972849, now seen corresponding path program 1 times [2022-10-16 02:38:18,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:18,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194919138] [2022-10-16 02:38:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:18,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:18,746 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:18,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:18,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194919138] [2022-10-16 02:38:18,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194919138] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:18,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:18,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:38:18,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808544085] [2022-10-16 02:38:18,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:18,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:38:18,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:18,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:38:18,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:38:18,749 INFO L87 Difference]: Start difference. First operand 7884 states and 10836 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 02:38:18,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:18,829 INFO L93 Difference]: Finished difference Result 13652 states and 18385 transitions. [2022-10-16 02:38:18,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:38:18,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-10-16 02:38:18,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:18,864 INFO L225 Difference]: With dead ends: 13652 [2022-10-16 02:38:18,865 INFO L226 Difference]: Without dead ends: 13652 [2022-10-16 02:38:18,865 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 02:38:18,866 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 45 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:18,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 194 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:18,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13652 states. [2022-10-16 02:38:19,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13652 to 13650. [2022-10-16 02:38:19,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13650 states, 13649 states have (on average 1.3469118616748479) internal successors, (18384), 13649 states have internal predecessors, (18384), 0 states have call successors, (0), 0 states 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 02:38:19,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13650 states to 13650 states and 18384 transitions. [2022-10-16 02:38:19,216 INFO L78 Accepts]: Start accepts. Automaton has 13650 states and 18384 transitions. Word has length 66 [2022-10-16 02:38:19,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:19,216 INFO L495 AbstractCegarLoop]: Abstraction has 13650 states and 18384 transitions. [2022-10-16 02:38:19,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 02:38:19,217 INFO L276 IsEmpty]: Start isEmpty. Operand 13650 states and 18384 transitions. [2022-10-16 02:38:19,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 02:38:19,220 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:19,221 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] [2022-10-16 02:38:19,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:38:19,221 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:19,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:19,222 INFO L85 PathProgramCache]: Analyzing trace with hash -402340171, now seen corresponding path program 1 times [2022-10-16 02:38:19,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:19,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715449285] [2022-10-16 02:38:19,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:19,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:19,339 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 02:38:19,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:19,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715449285] [2022-10-16 02:38:19,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715449285] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:19,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:19,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:38:19,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802746518] [2022-10-16 02:38:19,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:19,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:38:19,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:19,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:38:19,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:38:19,342 INFO L87 Difference]: Start difference. First operand 13650 states and 18384 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:38:19,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:19,479 INFO L93 Difference]: Finished difference Result 20208 states and 27147 transitions. [2022-10-16 02:38:19,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:38:19,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-10-16 02:38:19,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:19,530 INFO L225 Difference]: With dead ends: 20208 [2022-10-16 02:38:19,531 INFO L226 Difference]: Without dead ends: 20208 [2022-10-16 02:38:19,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:38:19,532 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 266 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:19,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 455 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:19,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20208 states. [2022-10-16 02:38:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20208 to 17712. [2022-10-16 02:38:20,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17712 states, 17711 states have (on average 1.3424425498277905) internal successors, (23776), 17711 states have internal predecessors, (23776), 0 states have call successors, (0), 0 states 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 02:38:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17712 states to 17712 states and 23776 transitions. [2022-10-16 02:38:20,396 INFO L78 Accepts]: Start accepts. Automaton has 17712 states and 23776 transitions. Word has length 66 [2022-10-16 02:38:20,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:20,397 INFO L495 AbstractCegarLoop]: Abstraction has 17712 states and 23776 transitions. [2022-10-16 02:38:20,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:38:20,397 INFO L276 IsEmpty]: Start isEmpty. Operand 17712 states and 23776 transitions. [2022-10-16 02:38:20,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-16 02:38:20,402 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:20,402 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:38:20,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:38:20,403 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:20,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:20,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1947762533, now seen corresponding path program 1 times [2022-10-16 02:38:20,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:20,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349622072] [2022-10-16 02:38:20,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:20,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:20,578 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:38:20,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:20,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349622072] [2022-10-16 02:38:20,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349622072] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:20,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:20,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:38:20,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170780050] [2022-10-16 02:38:20,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:20,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:38:20,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:20,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:38:20,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:38:20,581 INFO L87 Difference]: Start difference. First operand 17712 states and 23776 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 02:38:20,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:20,752 INFO L93 Difference]: Finished difference Result 23632 states and 31687 transitions. [2022-10-16 02:38:20,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:38:20,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 67 [2022-10-16 02:38:20,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:20,811 INFO L225 Difference]: With dead ends: 23632 [2022-10-16 02:38:20,811 INFO L226 Difference]: Without dead ends: 23632 [2022-10-16 02:38:20,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:38:20,813 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 260 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:20,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 445 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:20,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23632 states. [2022-10-16 02:38:21,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23632 to 20626. [2022-10-16 02:38:21,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20626 states, 20625 states have (on average 1.3416727272727274) internal successors, (27672), 20625 states have internal predecessors, (27672), 0 states have call successors, (0), 0 states 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 02:38:21,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20626 states to 20626 states and 27672 transitions. [2022-10-16 02:38:21,461 INFO L78 Accepts]: Start accepts. Automaton has 20626 states and 27672 transitions. Word has length 67 [2022-10-16 02:38:21,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:21,461 INFO L495 AbstractCegarLoop]: Abstraction has 20626 states and 27672 transitions. [2022-10-16 02:38:21,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 02:38:21,462 INFO L276 IsEmpty]: Start isEmpty. Operand 20626 states and 27672 transitions. [2022-10-16 02:38:21,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-16 02:38:21,469 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:21,469 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] [2022-10-16 02:38:21,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:38:21,470 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:21,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:21,470 INFO L85 PathProgramCache]: Analyzing trace with hash 707985229, now seen corresponding path program 1 times [2022-10-16 02:38:21,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:21,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400590742] [2022-10-16 02:38:21,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:21,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:21,544 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:21,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:21,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400590742] [2022-10-16 02:38:21,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400590742] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:21,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:21,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:38:21,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461039124] [2022-10-16 02:38:21,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:21,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:38:21,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:21,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:38:21,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:38:21,548 INFO L87 Difference]: Start difference. First operand 20626 states and 27672 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 02:38:21,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:21,884 INFO L93 Difference]: Finished difference Result 23591 states and 30974 transitions. [2022-10-16 02:38:21,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:38:21,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-10-16 02:38:21,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:21,947 INFO L225 Difference]: With dead ends: 23591 [2022-10-16 02:38:21,947 INFO L226 Difference]: Without dead ends: 21162 [2022-10-16 02:38:21,947 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 02:38:21,948 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 44 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:21,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 238 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:21,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21162 states. [2022-10-16 02:38:22,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21162 to 20589. [2022-10-16 02:38:22,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20589 states, 20588 states have (on average 1.3174179133475812) internal successors, (27123), 20588 states have internal predecessors, (27123), 0 states have call successors, (0), 0 states 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 02:38:22,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20589 states to 20589 states and 27123 transitions. [2022-10-16 02:38:22,355 INFO L78 Accepts]: Start accepts. Automaton has 20589 states and 27123 transitions. Word has length 69 [2022-10-16 02:38:22,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:22,356 INFO L495 AbstractCegarLoop]: Abstraction has 20589 states and 27123 transitions. [2022-10-16 02:38:22,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 02:38:22,356 INFO L276 IsEmpty]: Start isEmpty. Operand 20589 states and 27123 transitions. [2022-10-16 02:38:22,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-16 02:38:22,361 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:22,361 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] [2022-10-16 02:38:22,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 02:38:22,362 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:22,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:22,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1893885068, now seen corresponding path program 1 times [2022-10-16 02:38:22,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:22,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649723695] [2022-10-16 02:38:22,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:22,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:22,599 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 02:38:22,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:22,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649723695] [2022-10-16 02:38:22,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649723695] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:38:22,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153469387] [2022-10-16 02:38:22,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:22,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:38:22,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:38:22,602 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 02:38:22,626 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 02:38:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:22,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 02:38:22,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:38:22,923 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 02:38:22,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:38:23,036 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 02:38:23,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153469387] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:38:23,037 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:38:23,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-10-16 02:38:23,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497109243] [2022-10-16 02:38:23,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:38:23,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 02:38:23,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:23,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 02:38:23,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:38:23,040 INFO L87 Difference]: Start difference. First operand 20589 states and 27123 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:38:23,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:23,525 INFO L93 Difference]: Finished difference Result 36286 states and 47342 transitions. [2022-10-16 02:38:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 02:38:23,526 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-10-16 02:38:23,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:23,629 INFO L225 Difference]: With dead ends: 36286 [2022-10-16 02:38:23,630 INFO L226 Difference]: Without dead ends: 36286 [2022-10-16 02:38:23,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 130 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-10-16 02:38:23,632 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 1672 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:23,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1672 Valid, 365 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:38:23,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36286 states. [2022-10-16 02:38:24,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36286 to 20897. [2022-10-16 02:38:24,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20897 states, 20896 states have (on average 1.3268568147013782) internal successors, (27726), 20896 states have internal predecessors, (27726), 0 states have call successors, (0), 0 states 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 02:38:24,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20897 states to 20897 states and 27726 transitions. [2022-10-16 02:38:24,359 INFO L78 Accepts]: Start accepts. Automaton has 20897 states and 27726 transitions. Word has length 70 [2022-10-16 02:38:24,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:24,360 INFO L495 AbstractCegarLoop]: Abstraction has 20897 states and 27726 transitions. [2022-10-16 02:38:24,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:38:24,360 INFO L276 IsEmpty]: Start isEmpty. Operand 20897 states and 27726 transitions. [2022-10-16 02:38:24,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 02:38:24,373 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:24,373 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:38:24,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 02:38:24,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:38:24,591 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:24,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:24,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1644790968, now seen corresponding path program 1 times [2022-10-16 02:38:24,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:24,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139892527] [2022-10-16 02:38:24,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:24,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 02:38:24,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:24,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139892527] [2022-10-16 02:38:24,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139892527] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:24,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:24,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:38:24,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442951402] [2022-10-16 02:38:24,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:24,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:38:24,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:24,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:38:24,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:38:24,734 INFO L87 Difference]: Start difference. First operand 20897 states and 27726 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 02:38:24,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:24,958 INFO L93 Difference]: Finished difference Result 27480 states and 35739 transitions. [2022-10-16 02:38:24,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:38:24,959 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 71 [2022-10-16 02:38:24,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:25,010 INFO L225 Difference]: With dead ends: 27480 [2022-10-16 02:38:25,011 INFO L226 Difference]: Without dead ends: 27480 [2022-10-16 02:38:25,011 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 02:38:25,012 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 567 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:25,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 165 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:38:25,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27480 states. [2022-10-16 02:38:25,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27480 to 20897. [2022-10-16 02:38:25,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20897 states, 20896 states have (on average 1.3129307044410414) internal successors, (27435), 20896 states have internal predecessors, (27435), 0 states have call successors, (0), 0 states 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 02:38:25,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20897 states to 20897 states and 27435 transitions. [2022-10-16 02:38:25,728 INFO L78 Accepts]: Start accepts. Automaton has 20897 states and 27435 transitions. Word has length 71 [2022-10-16 02:38:25,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:25,729 INFO L495 AbstractCegarLoop]: Abstraction has 20897 states and 27435 transitions. [2022-10-16 02:38:25,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 02:38:25,729 INFO L276 IsEmpty]: Start isEmpty. Operand 20897 states and 27435 transitions. [2022-10-16 02:38:25,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 02:38:25,735 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:25,735 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:38:25,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:38:25,735 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:25,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash 751304630, now seen corresponding path program 1 times [2022-10-16 02:38:25,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:25,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990228584] [2022-10-16 02:38:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:25,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:25,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:25,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990228584] [2022-10-16 02:38:25,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990228584] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:38:25,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308868130] [2022-10-16 02:38:25,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:25,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:38:25,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:38:25,908 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 02:38:25,911 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 02:38:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:26,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 02:38:26,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:38:26,259 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:26,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:38:26,382 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:26,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308868130] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:38:26,383 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:38:26,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-10-16 02:38:26,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136092164] [2022-10-16 02:38:26,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:38:26,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 02:38:26,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:26,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 02:38:26,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:38:26,386 INFO L87 Difference]: Start difference. First operand 20897 states and 27435 transitions. Second operand has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 02:38:26,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:26,889 INFO L93 Difference]: Finished difference Result 42674 states and 55174 transitions. [2022-10-16 02:38:26,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 02:38:26,889 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 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 71 [2022-10-16 02:38:26,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:26,963 INFO L225 Difference]: With dead ends: 42674 [2022-10-16 02:38:26,963 INFO L226 Difference]: Without dead ends: 42674 [2022-10-16 02:38:26,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 132 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-10-16 02:38:26,965 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 1403 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:26,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 302 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 02:38:27,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42674 states. [2022-10-16 02:38:27,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42674 to 24554. [2022-10-16 02:38:27,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24554 states, 24553 states have (on average 1.3122225389972713) internal successors, (32219), 24553 states have internal predecessors, (32219), 0 states have call successors, (0), 0 states 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 02:38:27,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24554 states to 24554 states and 32219 transitions. [2022-10-16 02:38:27,556 INFO L78 Accepts]: Start accepts. Automaton has 24554 states and 32219 transitions. Word has length 71 [2022-10-16 02:38:27,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:27,557 INFO L495 AbstractCegarLoop]: Abstraction has 24554 states and 32219 transitions. [2022-10-16 02:38:27,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states 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 02:38:27,557 INFO L276 IsEmpty]: Start isEmpty. Operand 24554 states and 32219 transitions. [2022-10-16 02:38:27,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 02:38:27,563 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:27,563 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:38:27,613 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 02:38:27,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:38:27,778 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:27,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:27,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2115610868, now seen corresponding path program 1 times [2022-10-16 02:38:27,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:27,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772870519] [2022-10-16 02:38:27,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:27,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:27,921 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:27,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:27,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772870519] [2022-10-16 02:38:27,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772870519] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:38:27,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290319734] [2022-10-16 02:38:27,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:27,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:38:27,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:38:27,926 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 02:38:27,951 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 02:38:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:28,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 02:38:28,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:38:28,248 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:28,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:38:28,344 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:28,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290319734] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:38:28,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:38:28,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-10-16 02:38:28,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583451828] [2022-10-16 02:38:28,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:38:28,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 02:38:28,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:28,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 02:38:28,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:38:28,349 INFO L87 Difference]: Start difference. First operand 24554 states and 32219 transitions. Second operand has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 10 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 02:38:28,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:28,814 INFO L93 Difference]: Finished difference Result 36256 states and 46766 transitions. [2022-10-16 02:38:28,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 02:38:28,815 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 10 states have internal predecessors, (120), 0 states have call successors, (0), 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 71 [2022-10-16 02:38:28,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:28,875 INFO L225 Difference]: With dead ends: 36256 [2022-10-16 02:38:28,875 INFO L226 Difference]: Without dead ends: 36256 [2022-10-16 02:38:28,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 132 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2022-10-16 02:38:28,877 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 968 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:28,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 376 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 02:38:28,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36256 states. [2022-10-16 02:38:29,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36256 to 25046. [2022-10-16 02:38:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25046 states, 25045 states have (on average 1.3037332800958275) internal successors, (32652), 25045 states have internal predecessors, (32652), 0 states have call successors, (0), 0 states 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 02:38:29,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25046 states to 25046 states and 32652 transitions. [2022-10-16 02:38:29,578 INFO L78 Accepts]: Start accepts. Automaton has 25046 states and 32652 transitions. Word has length 71 [2022-10-16 02:38:29,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:29,579 INFO L495 AbstractCegarLoop]: Abstraction has 25046 states and 32652 transitions. [2022-10-16 02:38:29,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 10 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 02:38:29,579 INFO L276 IsEmpty]: Start isEmpty. Operand 25046 states and 32652 transitions. [2022-10-16 02:38:29,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 02:38:29,587 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:29,588 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] [2022-10-16 02:38:29,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 02:38:29,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:38:29,802 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:29,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:29,803 INFO L85 PathProgramCache]: Analyzing trace with hash -821798225, now seen corresponding path program 1 times [2022-10-16 02:38:29,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:29,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321963820] [2022-10-16 02:38:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:29,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:29,878 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:29,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:29,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321963820] [2022-10-16 02:38:29,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321963820] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:38:29,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:38:29,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:38:29,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114580042] [2022-10-16 02:38:29,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:38:29,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:38:29,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:29,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:38:29,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:38:29,881 INFO L87 Difference]: Start difference. First operand 25046 states and 32652 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 02:38:29,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:29,959 INFO L93 Difference]: Finished difference Result 19099 states and 24261 transitions. [2022-10-16 02:38:29,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:38:29,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-10-16 02:38:29,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:29,988 INFO L225 Difference]: With dead ends: 19099 [2022-10-16 02:38:29,988 INFO L226 Difference]: Without dead ends: 19099 [2022-10-16 02:38:29,989 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 02:38:29,989 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 49 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:29,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 242 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:38:30,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19099 states. [2022-10-16 02:38:30,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19099 to 19081. [2022-10-16 02:38:30,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19081 states, 19080 states have (on average 1.2705450733752621) internal successors, (24242), 19080 states have internal predecessors, (24242), 0 states have call successors, (0), 0 states 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 02:38:30,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19081 states to 19081 states and 24242 transitions. [2022-10-16 02:38:30,458 INFO L78 Accepts]: Start accepts. Automaton has 19081 states and 24242 transitions. Word has length 72 [2022-10-16 02:38:30,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:30,459 INFO L495 AbstractCegarLoop]: Abstraction has 19081 states and 24242 transitions. [2022-10-16 02:38:30,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 02:38:30,459 INFO L276 IsEmpty]: Start isEmpty. Operand 19081 states and 24242 transitions. [2022-10-16 02:38:30,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 02:38:30,466 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:30,466 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:38:30,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:38:30,467 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:30,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:30,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1590063719, now seen corresponding path program 1 times [2022-10-16 02:38:30,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:30,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405744135] [2022-10-16 02:38:30,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:30,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:30,800 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:30,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:30,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405744135] [2022-10-16 02:38:30,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405744135] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:38:30,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984506340] [2022-10-16 02:38:30,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:30,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:38:30,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:38:30,802 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 02:38:30,828 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 02:38:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:30,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:38:30,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:38:31,713 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:31,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:38:32,250 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:32,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984506340] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:38:32,250 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:38:32,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2022-10-16 02:38:32,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043385922] [2022-10-16 02:38:32,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:38:32,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 02:38:32,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:32,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 02:38:32,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2022-10-16 02:38:32,253 INFO L87 Difference]: Start difference. First operand 19081 states and 24242 transitions. Second operand has 23 states, 23 states have (on average 6.869565217391305) internal successors, (158), 22 states have internal predecessors, (158), 0 states have call successors, (0), 0 states 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 02:38:33,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:38:33,944 INFO L93 Difference]: Finished difference Result 52678 states and 65828 transitions. [2022-10-16 02:38:33,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 02:38:33,947 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.869565217391305) internal successors, (158), 22 states have internal predecessors, (158), 0 states have call successors, (0), 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 72 [2022-10-16 02:38:33,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:38:34,027 INFO L225 Difference]: With dead ends: 52678 [2022-10-16 02:38:34,027 INFO L226 Difference]: Without dead ends: 52678 [2022-10-16 02:38:34,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2022-10-16 02:38:34,029 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1094 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 02:38:34,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 1355 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 02:38:34,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52678 states. [2022-10-16 02:38:34,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52678 to 31154. [2022-10-16 02:38:34,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31154 states, 31153 states have (on average 1.2648541071485893) internal successors, (39404), 31153 states have internal predecessors, (39404), 0 states have call successors, (0), 0 states 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 02:38:34,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31154 states to 31154 states and 39404 transitions. [2022-10-16 02:38:34,764 INFO L78 Accepts]: Start accepts. Automaton has 31154 states and 39404 transitions. Word has length 72 [2022-10-16 02:38:34,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:38:34,764 INFO L495 AbstractCegarLoop]: Abstraction has 31154 states and 39404 transitions. [2022-10-16 02:38:34,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.869565217391305) internal successors, (158), 22 states have internal predecessors, (158), 0 states have call successors, (0), 0 states 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 02:38:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 31154 states and 39404 transitions. [2022-10-16 02:38:34,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 02:38:34,772 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:38:34,772 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:38:34,814 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 02:38:34,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:38:34,989 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:38:34,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:38:34,990 INFO L85 PathProgramCache]: Analyzing trace with hash -2017409783, now seen corresponding path program 1 times [2022-10-16 02:38:34,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:38:34,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495328116] [2022-10-16 02:38:34,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:34,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:38:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:35,367 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:35,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:38:35,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495328116] [2022-10-16 02:38:35,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495328116] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:38:35,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186445880] [2022-10-16 02:38:35,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:38:35,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:38:35,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:38:35,369 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 02:38:35,378 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 02:38:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:38:35,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:38:35,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:38:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:37,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:38:38,246 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:38:38,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186445880] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:38:38,247 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:38:38,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 30 [2022-10-16 02:38:38,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043129000] [2022-10-16 02:38:38,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:38:38,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 02:38:38,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:38:38,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 02:38:38,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2022-10-16 02:38:38,249 INFO L87 Difference]: Start difference. First operand 31154 states and 39404 transitions. Second operand has 30 states, 30 states have (on average 6.566666666666666) internal successors, (197), 30 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 02:39:13,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:13,963 INFO L93 Difference]: Finished difference Result 126010 states and 154850 transitions. [2022-10-16 02:39:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 265 states. [2022-10-16 02:39:13,964 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 6.566666666666666) internal successors, (197), 30 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 72 [2022-10-16 02:39:13,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:14,113 INFO L225 Difference]: With dead ends: 126010 [2022-10-16 02:39:14,113 INFO L226 Difference]: Without dead ends: 125830 [2022-10-16 02:39:14,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 291 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39417 ImplicationChecksByTransitivity, 28.8s TimeCoverageRelationStatistics Valid=14265, Invalid=71291, Unknown=0, NotChecked=0, Total=85556 [2022-10-16 02:39:14,133 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 8248 mSDsluCounter, 5775 mSDsCounter, 0 mSdLazyCounter, 5918 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8248 SdHoareTripleChecker+Valid, 6335 SdHoareTripleChecker+Invalid, 6566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 5918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:14,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8248 Valid, 6335 Invalid, 6566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [648 Valid, 5918 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-10-16 02:39:14,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125830 states. [2022-10-16 02:39:14,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125830 to 38844. [2022-10-16 02:39:14,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38844 states, 38843 states have (on average 1.2720953582370054) internal successors, (49412), 38843 states have internal predecessors, (49412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:15,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38844 states to 38844 states and 49412 transitions. [2022-10-16 02:39:15,038 INFO L78 Accepts]: Start accepts. Automaton has 38844 states and 49412 transitions. Word has length 72 [2022-10-16 02:39:15,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:15,038 INFO L495 AbstractCegarLoop]: Abstraction has 38844 states and 49412 transitions. [2022-10-16 02:39:15,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 6.566666666666666) internal successors, (197), 30 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 02:39:15,039 INFO L276 IsEmpty]: Start isEmpty. Operand 38844 states and 49412 transitions. [2022-10-16 02:39:15,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 02:39:15,047 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:15,048 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] [2022-10-16 02:39:15,090 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 02:39:15,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:39:15,264 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:15,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:15,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1788492483, now seen corresponding path program 1 times [2022-10-16 02:39:15,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:15,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218686772] [2022-10-16 02:39:15,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:15,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:15,344 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:39:15,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:15,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218686772] [2022-10-16 02:39:15,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218686772] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:15,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:15,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:39:15,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661232777] [2022-10-16 02:39:15,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:15,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:39:15,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:15,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:39:15,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:15,349 INFO L87 Difference]: Start difference. First operand 38844 states and 49412 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:15,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:15,489 INFO L93 Difference]: Finished difference Result 36878 states and 46093 transitions. [2022-10-16 02:39:15,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:39:15,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-10-16 02:39:15,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:15,541 INFO L225 Difference]: With dead ends: 36878 [2022-10-16 02:39:15,542 INFO L226 Difference]: Without dead ends: 36878 [2022-10-16 02:39:15,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:15,543 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 43 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:15,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 234 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:15,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36878 states. [2022-10-16 02:39:16,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36878 to 36876. [2022-10-16 02:39:16,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36876 states, 36875 states have (on average 1.2499525423728814) internal successors, (46092), 36875 states have internal predecessors, (46092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:16,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36876 states to 36876 states and 46092 transitions. [2022-10-16 02:39:16,113 INFO L78 Accepts]: Start accepts. Automaton has 36876 states and 46092 transitions. Word has length 73 [2022-10-16 02:39:16,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:16,113 INFO L495 AbstractCegarLoop]: Abstraction has 36876 states and 46092 transitions. [2022-10-16 02:39:16,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:16,113 INFO L276 IsEmpty]: Start isEmpty. Operand 36876 states and 46092 transitions. [2022-10-16 02:39:16,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 02:39:16,121 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:16,122 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] [2022-10-16 02:39:16,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 02:39:16,122 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:16,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:16,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1514033179, now seen corresponding path program 1 times [2022-10-16 02:39:16,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:16,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143847276] [2022-10-16 02:39:16,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:16,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:16,178 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:39:16,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:16,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143847276] [2022-10-16 02:39:16,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143847276] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:16,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:16,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:39:16,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154578966] [2022-10-16 02:39:16,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:16,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:39:16,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:16,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:39:16,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:16,180 INFO L87 Difference]: Start difference. First operand 36876 states and 46092 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:16,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:16,433 INFO L93 Difference]: Finished difference Result 58990 states and 73435 transitions. [2022-10-16 02:39:16,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:39:16,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 74 [2022-10-16 02:39:16,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:16,551 INFO L225 Difference]: With dead ends: 58990 [2022-10-16 02:39:16,551 INFO L226 Difference]: Without dead ends: 58990 [2022-10-16 02:39:16,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:16,553 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 61 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:39:16,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 163 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:16,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58990 states. [2022-10-16 02:39:17,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58990 to 43129. [2022-10-16 02:39:18,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43129 states, 43128 states have (on average 1.244110554628084) internal successors, (53656), 43128 states have internal predecessors, (53656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:18,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43129 states to 43129 states and 53656 transitions. [2022-10-16 02:39:18,481 INFO L78 Accepts]: Start accepts. Automaton has 43129 states and 53656 transitions. Word has length 74 [2022-10-16 02:39:18,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:18,481 INFO L495 AbstractCegarLoop]: Abstraction has 43129 states and 53656 transitions. [2022-10-16 02:39:18,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:18,481 INFO L276 IsEmpty]: Start isEmpty. Operand 43129 states and 53656 transitions. [2022-10-16 02:39:18,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 02:39:18,487 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:18,487 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:18,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 02:39:18,487 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:18,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:18,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1814577582, now seen corresponding path program 1 times [2022-10-16 02:39:18,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:18,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120342970] [2022-10-16 02:39:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:18,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:18,575 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:39:18,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:18,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120342970] [2022-10-16 02:39:18,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120342970] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:39:18,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:39:18,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:39:18,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302942389] [2022-10-16 02:39:18,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:39:18,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:39:18,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:18,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:39:18,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:18,578 INFO L87 Difference]: Start difference. First operand 43129 states and 53656 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 02:39:18,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:39:18,697 INFO L93 Difference]: Finished difference Result 39696 states and 47817 transitions. [2022-10-16 02:39:18,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:39:18,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 74 [2022-10-16 02:39:18,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:39:18,751 INFO L225 Difference]: With dead ends: 39696 [2022-10-16 02:39:18,751 INFO L226 Difference]: Without dead ends: 39696 [2022-10-16 02:39:18,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:39:18,753 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 40 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 204 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 02:39:18,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 204 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:39:18,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39696 states. [2022-10-16 02:39:19,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39696 to 38824. [2022-10-16 02:39:19,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38824 states, 38823 states have (on average 1.2055482574762384) internal successors, (46803), 38823 states have internal predecessors, (46803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:39:19,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38824 states to 38824 states and 46803 transitions. [2022-10-16 02:39:19,430 INFO L78 Accepts]: Start accepts. Automaton has 38824 states and 46803 transitions. Word has length 74 [2022-10-16 02:39:19,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:39:19,430 INFO L495 AbstractCegarLoop]: Abstraction has 38824 states and 46803 transitions. [2022-10-16 02:39:19,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 02:39:19,430 INFO L276 IsEmpty]: Start isEmpty. Operand 38824 states and 46803 transitions. [2022-10-16 02:39:19,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 02:39:19,434 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:39:19,434 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:39:19,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-16 02:39:19,435 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:39:19,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:39:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash 752874377, now seen corresponding path program 1 times [2022-10-16 02:39:19,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:39:19,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855394772] [2022-10-16 02:39:19,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:19,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:39:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:20,631 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:39:20,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:39:20,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855394772] [2022-10-16 02:39:20,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855394772] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:39:20,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944721558] [2022-10-16 02:39:20,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:39:20,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:39:20,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:39:20,636 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 02:39:20,645 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 02:39:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:39:20,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 02:39:20,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:39:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:39:23,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:39:24,159 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:39:24,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944721558] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:39:24,160 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:39:24,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 31 [2022-10-16 02:39:24,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320762385] [2022-10-16 02:39:24,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:39:24,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-10-16 02:39:24,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:39:24,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-10-16 02:39:24,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=839, Unknown=0, NotChecked=0, Total=930 [2022-10-16 02:39:24,162 INFO L87 Difference]: Start difference. First operand 38824 states and 46803 transitions. Second operand has 31 states, 31 states have (on average 6.645161290322581) internal successors, (206), 31 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:15,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:15,675 INFO L93 Difference]: Finished difference Result 251299 states and 297711 transitions. [2022-10-16 02:40:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 299 states. [2022-10-16 02:40:15,675 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 6.645161290322581) internal successors, (206), 31 states have internal predecessors, (206), 0 states have call successors, (0), 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 74 [2022-10-16 02:40:15,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:16,009 INFO L225 Difference]: With dead ends: 251299 [2022-10-16 02:40:16,010 INFO L226 Difference]: Without dead ends: 251299 [2022-10-16 02:40:16,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 326 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45261 ImplicationChecksByTransitivity, 47.5s TimeCoverageRelationStatistics Valid=10240, Invalid=97016, Unknown=0, NotChecked=0, Total=107256 [2022-10-16 02:40:16,020 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 8236 mSDsluCounter, 9262 mSDsCounter, 0 mSdLazyCounter, 3256 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8236 SdHoareTripleChecker+Valid, 9989 SdHoareTripleChecker+Invalid, 3776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 3256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:16,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8236 Valid, 9989 Invalid, 3776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 3256 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-10-16 02:40:16,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251299 states. [2022-10-16 02:40:18,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251299 to 81580. [2022-10-16 02:40:18,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81580 states, 81579 states have (on average 1.209723090501232) internal successors, (98688), 81579 states have internal predecessors, (98688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:18,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81580 states to 81580 states and 98688 transitions. [2022-10-16 02:40:18,686 INFO L78 Accepts]: Start accepts. Automaton has 81580 states and 98688 transitions. Word has length 74 [2022-10-16 02:40:18,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:18,686 INFO L495 AbstractCegarLoop]: Abstraction has 81580 states and 98688 transitions. [2022-10-16 02:40:18,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.645161290322581) internal successors, (206), 31 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:18,686 INFO L276 IsEmpty]: Start isEmpty. Operand 81580 states and 98688 transitions. [2022-10-16 02:40:18,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 02:40:18,689 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:18,689 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:40:18,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 02:40:18,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 02:40:18,897 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:18,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:18,898 INFO L85 PathProgramCache]: Analyzing trace with hash 606654085, now seen corresponding path program 1 times [2022-10-16 02:40:18,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:18,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384804757] [2022-10-16 02:40:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:18,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:19,024 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 02:40:19,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:19,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384804757] [2022-10-16 02:40:19,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384804757] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:40:19,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:40:19,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:40:19,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118628801] [2022-10-16 02:40:19,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:40:19,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:40:19,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:19,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:40:19,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:40:19,026 INFO L87 Difference]: Start difference. First operand 81580 states and 98688 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:19,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:19,997 INFO L93 Difference]: Finished difference Result 66494 states and 79418 transitions. [2022-10-16 02:40:20,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:40:20,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 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 74 [2022-10-16 02:40:20,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:20,106 INFO L225 Difference]: With dead ends: 66494 [2022-10-16 02:40:20,106 INFO L226 Difference]: Without dead ends: 66494 [2022-10-16 02:40:20,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:40:20,107 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 399 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:20,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 199 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:40:20,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66494 states. [2022-10-16 02:40:20,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66494 to 63117. [2022-10-16 02:40:20,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63117 states, 63116 states have (on average 1.196146777362317) internal successors, (75496), 63116 states have internal predecessors, (75496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:20,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63117 states to 63117 states and 75496 transitions. [2022-10-16 02:40:20,869 INFO L78 Accepts]: Start accepts. Automaton has 63117 states and 75496 transitions. Word has length 74 [2022-10-16 02:40:20,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:20,870 INFO L495 AbstractCegarLoop]: Abstraction has 63117 states and 75496 transitions. [2022-10-16 02:40:20,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:20,870 INFO L276 IsEmpty]: Start isEmpty. Operand 63117 states and 75496 transitions. [2022-10-16 02:40:20,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 02:40:20,882 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:20,882 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:40:20,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-10-16 02:40:20,883 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:20,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:20,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1436911559, now seen corresponding path program 1 times [2022-10-16 02:40:20,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:20,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723703221] [2022-10-16 02:40:20,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:20,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:20,974 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 02:40:20,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:20,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723703221] [2022-10-16 02:40:20,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723703221] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:40:20,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:40:20,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:40:20,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970942340] [2022-10-16 02:40:20,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:40:20,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:40:20,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:20,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:40:20,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:40:20,976 INFO L87 Difference]: Start difference. First operand 63117 states and 75496 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:21,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:21,647 INFO L93 Difference]: Finished difference Result 118554 states and 140443 transitions. [2022-10-16 02:40:21,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:40:21,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-10-16 02:40:21,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:21,837 INFO L225 Difference]: With dead ends: 118554 [2022-10-16 02:40:21,838 INFO L226 Difference]: Without dead ends: 118554 [2022-10-16 02:40:21,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:40:21,839 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 58 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:21,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 246 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:40:21,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118554 states. [2022-10-16 02:40:23,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118554 to 118110. [2022-10-16 02:40:24,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118110 states, 118109 states have (on average 1.1853457399520781) internal successors, (140000), 118109 states have internal predecessors, (140000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:24,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118110 states to 118110 states and 140000 transitions. [2022-10-16 02:40:24,321 INFO L78 Accepts]: Start accepts. Automaton has 118110 states and 140000 transitions. Word has length 118 [2022-10-16 02:40:24,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:24,321 INFO L495 AbstractCegarLoop]: Abstraction has 118110 states and 140000 transitions. [2022-10-16 02:40:24,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:24,322 INFO L276 IsEmpty]: Start isEmpty. Operand 118110 states and 140000 transitions. [2022-10-16 02:40:24,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 02:40:24,367 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:24,368 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:40:24,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-10-16 02:40:24,368 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:24,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:24,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1676738359, now seen corresponding path program 2 times [2022-10-16 02:40:24,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:24,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311941508] [2022-10-16 02:40:24,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:24,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 51 proven. 21 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 02:40:24,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:24,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311941508] [2022-10-16 02:40:24,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311941508] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:40:24,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153830489] [2022-10-16 02:40:24,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 02:40:24,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:40:24,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:40:24,509 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:40:24,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 02:40:24,614 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 02:40:24,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 02:40:24,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 02:40:24,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:40:24,694 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 51 proven. 21 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 02:40:24,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:40:24,758 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 51 proven. 21 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 02:40:24,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153830489] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:40:24,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:40:24,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2022-10-16 02:40:24,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601618950] [2022-10-16 02:40:24,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:40:24,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:40:24,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:24,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:40:24,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:40:24,761 INFO L87 Difference]: Start difference. First operand 118110 states and 140000 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:25,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:25,599 INFO L93 Difference]: Finished difference Result 124261 states and 146166 transitions. [2022-10-16 02:40:25,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:40:25,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-10-16 02:40:25,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:25,850 INFO L225 Difference]: With dead ends: 124261 [2022-10-16 02:40:25,851 INFO L226 Difference]: Without dead ends: 124261 [2022-10-16 02:40:25,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:40:25,853 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 93 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:25,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 221 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:40:25,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124261 states. [2022-10-16 02:40:27,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124261 to 101318. [2022-10-16 02:40:27,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101318 states, 101317 states have (on average 1.1771963244075525) internal successors, (119270), 101317 states have internal predecessors, (119270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:28,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101318 states to 101318 states and 119270 transitions. [2022-10-16 02:40:28,253 INFO L78 Accepts]: Start accepts. Automaton has 101318 states and 119270 transitions. Word has length 118 [2022-10-16 02:40:28,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:28,254 INFO L495 AbstractCegarLoop]: Abstraction has 101318 states and 119270 transitions. [2022-10-16 02:40:28,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:28,254 INFO L276 IsEmpty]: Start isEmpty. Operand 101318 states and 119270 transitions. [2022-10-16 02:40:28,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 02:40:28,297 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:28,301 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 02:40:28,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-10-16 02:40:28,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:40:28,502 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:28,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:28,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1951497973, now seen corresponding path program 1 times [2022-10-16 02:40:28,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:28,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118848157] [2022-10-16 02:40:28,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:28,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:28,641 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 02:40:28,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:28,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118848157] [2022-10-16 02:40:28,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118848157] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:40:28,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:40:28,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:40:28,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37681840] [2022-10-16 02:40:28,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:40:28,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:40:28,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:28,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:40:28,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:40:28,643 INFO L87 Difference]: Start difference. First operand 101318 states and 119270 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:28,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:28,887 INFO L93 Difference]: Finished difference Result 97597 states and 114418 transitions. [2022-10-16 02:40:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:40:28,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-10-16 02:40:28,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:28,979 INFO L225 Difference]: With dead ends: 97597 [2022-10-16 02:40:28,979 INFO L226 Difference]: Without dead ends: 97428 [2022-10-16 02:40:28,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:40:28,980 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 422 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:28,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 140 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:40:29,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97428 states. [2022-10-16 02:40:30,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97428 to 73701. [2022-10-16 02:40:30,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73701 states, 73700 states have (on average 1.1763772048846677) internal successors, (86699), 73700 states have internal predecessors, (86699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:30,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73701 states to 73701 states and 86699 transitions. [2022-10-16 02:40:30,204 INFO L78 Accepts]: Start accepts. Automaton has 73701 states and 86699 transitions. Word has length 118 [2022-10-16 02:40:30,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:30,205 INFO L495 AbstractCegarLoop]: Abstraction has 73701 states and 86699 transitions. [2022-10-16 02:40:30,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand 73701 states and 86699 transitions. [2022-10-16 02:40:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-16 02:40:30,218 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:30,218 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:40:30,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-10-16 02:40:30,218 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:30,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:30,219 INFO L85 PathProgramCache]: Analyzing trace with hash -2088097557, now seen corresponding path program 1 times [2022-10-16 02:40:30,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:30,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119258253] [2022-10-16 02:40:30,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:30,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:30,339 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 02:40:30,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:30,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119258253] [2022-10-16 02:40:30,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119258253] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:40:30,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:40:30,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:40:30,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210419791] [2022-10-16 02:40:30,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:40:30,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:40:30,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:30,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:40:30,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:40:30,341 INFO L87 Difference]: Start difference. First operand 73701 states and 86699 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:30,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:30,432 INFO L93 Difference]: Finished difference Result 34177 states and 39680 transitions. [2022-10-16 02:40:30,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:40:30,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 122 [2022-10-16 02:40:30,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:30,472 INFO L225 Difference]: With dead ends: 34177 [2022-10-16 02:40:30,473 INFO L226 Difference]: Without dead ends: 34177 [2022-10-16 02:40:30,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:40:30,474 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 31 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:30,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 181 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:40:30,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34177 states. [2022-10-16 02:40:31,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34177 to 33035. [2022-10-16 02:40:31,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33035 states, 33034 states have (on average 1.160925107465036) internal successors, (38350), 33034 states have internal predecessors, (38350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:31,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33035 states to 33035 states and 38350 transitions. [2022-10-16 02:40:31,319 INFO L78 Accepts]: Start accepts. Automaton has 33035 states and 38350 transitions. Word has length 122 [2022-10-16 02:40:31,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:31,320 INFO L495 AbstractCegarLoop]: Abstraction has 33035 states and 38350 transitions. [2022-10-16 02:40:31,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:31,320 INFO L276 IsEmpty]: Start isEmpty. Operand 33035 states and 38350 transitions. [2022-10-16 02:40:31,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-16 02:40:31,332 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:31,332 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-10-16 02:40:31,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-10-16 02:40:31,333 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:31,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:31,334 INFO L85 PathProgramCache]: Analyzing trace with hash -659177036, now seen corresponding path program 1 times [2022-10-16 02:40:31,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:31,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653470731] [2022-10-16 02:40:31,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:31,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:32,372 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 26 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:32,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:32,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653470731] [2022-10-16 02:40:32,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653470731] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:40:32,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836098219] [2022-10-16 02:40:32,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:32,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:40:32,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:40:32,374 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:40:32,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 02:40:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:32,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 02:40:32,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:40:33,261 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 28 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:33,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:40:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 26 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:35,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836098219] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:40:35,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:40:35,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 28 [2022-10-16 02:40:35,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813360398] [2022-10-16 02:40:35,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:40:35,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 02:40:35,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:35,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 02:40:35,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=668, Unknown=0, NotChecked=0, Total=812 [2022-10-16 02:40:35,802 INFO L87 Difference]: Start difference. First operand 33035 states and 38350 transitions. Second operand has 29 states, 29 states have (on average 10.586206896551724) internal successors, (307), 28 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:39,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:39,705 INFO L93 Difference]: Finished difference Result 67817 states and 77334 transitions. [2022-10-16 02:40:39,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-10-16 02:40:39,705 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.586206896551724) internal successors, (307), 28 states have internal predecessors, (307), 0 states have call successors, (0), 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 122 [2022-10-16 02:40:39,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:39,853 INFO L225 Difference]: With dead ends: 67817 [2022-10-16 02:40:39,853 INFO L226 Difference]: Without dead ends: 67817 [2022-10-16 02:40:39,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 233 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2356 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2003, Invalid=6739, Unknown=0, NotChecked=0, Total=8742 [2022-10-16 02:40:39,854 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 1838 mSDsluCounter, 3293 mSDsCounter, 0 mSdLazyCounter, 2161 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 3662 SdHoareTripleChecker+Invalid, 2533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 281 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:39,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 3662 Invalid, 2533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2161 Invalid, 0 Unknown, 281 Unchecked, 1.4s Time] [2022-10-16 02:40:39,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67817 states. [2022-10-16 02:40:40,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67817 to 26488. [2022-10-16 02:40:40,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26488 states, 26487 states have (on average 1.152754181296485) internal successors, (30533), 26487 states have internal predecessors, (30533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:40,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26488 states to 26488 states and 30533 transitions. [2022-10-16 02:40:40,229 INFO L78 Accepts]: Start accepts. Automaton has 26488 states and 30533 transitions. Word has length 122 [2022-10-16 02:40:40,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:40,229 INFO L495 AbstractCegarLoop]: Abstraction has 26488 states and 30533 transitions. [2022-10-16 02:40:40,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.586206896551724) internal successors, (307), 28 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:40,230 INFO L276 IsEmpty]: Start isEmpty. Operand 26488 states and 30533 transitions. [2022-10-16 02:40:40,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-16 02:40:40,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:40,236 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-10-16 02:40:40,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 02:40:40,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 02:40:40,452 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:40,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:40,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1267465264, now seen corresponding path program 1 times [2022-10-16 02:40:40,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:40,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383211905] [2022-10-16 02:40:40,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:40,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:41,435 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 36 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:41,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:41,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383211905] [2022-10-16 02:40:41,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383211905] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:40:41,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548571393] [2022-10-16 02:40:41,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:41,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:40:41,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:40:41,438 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:40:41,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 02:40:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:41,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 02:40:41,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:40:42,393 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 40 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:42,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:40:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 36 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:45,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548571393] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:40:45,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:40:45,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 26 [2022-10-16 02:40:45,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028483558] [2022-10-16 02:40:45,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:40:45,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 02:40:45,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:45,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 02:40:45,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702 [2022-10-16 02:40:45,072 INFO L87 Difference]: Start difference. First operand 26488 states and 30533 transitions. Second operand has 27 states, 27 states have (on average 10.333333333333334) internal successors, (279), 26 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:46,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:46,174 INFO L93 Difference]: Finished difference Result 36430 states and 41617 transitions. [2022-10-16 02:40:46,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 02:40:46,175 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.333333333333334) internal successors, (279), 26 states have internal predecessors, (279), 0 states have call successors, (0), 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 122 [2022-10-16 02:40:46,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:46,209 INFO L225 Difference]: With dead ends: 36430 [2022-10-16 02:40:46,209 INFO L226 Difference]: Without dead ends: 36430 [2022-10-16 02:40:46,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 228 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=424, Invalid=1298, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 02:40:46,210 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 657 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:46,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1821 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1076 Invalid, 0 Unknown, 16 Unchecked, 0.7s Time] [2022-10-16 02:40:46,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36430 states. [2022-10-16 02:40:46,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36430 to 28284. [2022-10-16 02:40:46,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28284 states, 28283 states have (on average 1.1495598062440335) internal successors, (32513), 28283 states have internal predecessors, (32513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28284 states to 28284 states and 32513 transitions. [2022-10-16 02:40:46,552 INFO L78 Accepts]: Start accepts. Automaton has 28284 states and 32513 transitions. Word has length 122 [2022-10-16 02:40:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:46,553 INFO L495 AbstractCegarLoop]: Abstraction has 28284 states and 32513 transitions. [2022-10-16 02:40:46,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.333333333333334) internal successors, (279), 26 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:46,553 INFO L276 IsEmpty]: Start isEmpty. Operand 28284 states and 32513 transitions. [2022-10-16 02:40:46,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-16 02:40:46,558 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:46,558 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-10-16 02:40:46,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 02:40:46,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-10-16 02:40:46,759 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:46,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:46,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1347538004, now seen corresponding path program 1 times [2022-10-16 02:40:46,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:46,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971038745] [2022-10-16 02:40:46,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:46,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:47,121 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 02:40:47,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:47,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971038745] [2022-10-16 02:40:47,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971038745] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:40:47,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558828981] [2022-10-16 02:40:47,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:47,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:40:47,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:40:47,123 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:40:47,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 02:40:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:47,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:40:47,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:40:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 02:40:47,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:40:48,185 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 02:40:48,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558828981] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:40:48,186 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:40:48,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2022-10-16 02:40:48,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442748864] [2022-10-16 02:40:48,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:40:48,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 02:40:48,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:48,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 02:40:48,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2022-10-16 02:40:48,188 INFO L87 Difference]: Start difference. First operand 28284 states and 32513 transitions. Second operand has 23 states, 23 states have (on average 8.173913043478262) internal successors, (188), 22 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:48,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:48,977 INFO L93 Difference]: Finished difference Result 38486 states and 43862 transitions. [2022-10-16 02:40:48,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 02:40:48,978 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.173913043478262) internal successors, (188), 22 states have internal predecessors, (188), 0 states have call successors, (0), 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 122 [2022-10-16 02:40:48,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:49,011 INFO L225 Difference]: With dead ends: 38486 [2022-10-16 02:40:49,011 INFO L226 Difference]: Without dead ends: 38486 [2022-10-16 02:40:49,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=355, Invalid=1051, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 02:40:49,012 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 1127 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:49,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 989 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:40:49,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38486 states. [2022-10-16 02:40:49,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38486 to 26488. [2022-10-16 02:40:49,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26488 states, 26487 states have (on average 1.1484124287386266) internal successors, (30418), 26487 states have internal predecessors, (30418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:49,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26488 states to 26488 states and 30418 transitions. [2022-10-16 02:40:49,290 INFO L78 Accepts]: Start accepts. Automaton has 26488 states and 30418 transitions. Word has length 122 [2022-10-16 02:40:49,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:49,290 INFO L495 AbstractCegarLoop]: Abstraction has 26488 states and 30418 transitions. [2022-10-16 02:40:49,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.173913043478262) internal successors, (188), 22 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:49,290 INFO L276 IsEmpty]: Start isEmpty. Operand 26488 states and 30418 transitions. [2022-10-16 02:40:49,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-16 02:40:49,297 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:49,297 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 02:40:49,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 02:40:49,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-10-16 02:40:49,511 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:49,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:49,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1927614637, now seen corresponding path program 1 times [2022-10-16 02:40:49,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:49,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785459862] [2022-10-16 02:40:49,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:49,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:49,624 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-16 02:40:49,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:49,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785459862] [2022-10-16 02:40:49,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785459862] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:40:49,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:40:49,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:40:49,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162363630] [2022-10-16 02:40:49,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:40:49,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:40:49,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:49,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:40:49,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:40:49,627 INFO L87 Difference]: Start difference. First operand 26488 states and 30418 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:49,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:40:49,778 INFO L93 Difference]: Finished difference Result 9284 states and 10497 transitions. [2022-10-16 02:40:49,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:40:49,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-10-16 02:40:49,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:40:49,787 INFO L225 Difference]: With dead ends: 9284 [2022-10-16 02:40:49,787 INFO L226 Difference]: Without dead ends: 9284 [2022-10-16 02:40:49,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:40:49,788 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 27 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:40:49,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 163 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:40:49,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9284 states. [2022-10-16 02:40:49,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9284 to 8808. [2022-10-16 02:40:49,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8808 states, 8807 states have (on average 1.1363687975474055) internal successors, (10008), 8807 states have internal predecessors, (10008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8808 states to 8808 states and 10008 transitions. [2022-10-16 02:40:49,886 INFO L78 Accepts]: Start accepts. Automaton has 8808 states and 10008 transitions. Word has length 124 [2022-10-16 02:40:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:40:49,886 INFO L495 AbstractCegarLoop]: Abstraction has 8808 states and 10008 transitions. [2022-10-16 02:40:49,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:40:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 8808 states and 10008 transitions. [2022-10-16 02:40:49,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-16 02:40:49,889 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:40:49,890 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-10-16 02:40:49,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-10-16 02:40:49,890 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:40:49,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:40:49,891 INFO L85 PathProgramCache]: Analyzing trace with hash -370842112, now seen corresponding path program 1 times [2022-10-16 02:40:49,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:40:49,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213301708] [2022-10-16 02:40:49,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:49,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:40:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:51,260 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:51,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:40:51,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213301708] [2022-10-16 02:40:51,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213301708] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:40:51,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651921129] [2022-10-16 02:40:51,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:40:51,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:40:51,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:40:51,262 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:40:51,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 02:40:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:40:51,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-16 02:40:51,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:40:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 26 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:53,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:40:56,790 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 26 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:40:56,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651921129] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:40:56,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:40:56,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18, 18] total 52 [2022-10-16 02:40:56,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171532692] [2022-10-16 02:40:56,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:40:56,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-16 02:40:56,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:40:56,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-16 02:40:56,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=2479, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 02:40:56,794 INFO L87 Difference]: Start difference. First operand 8808 states and 10008 transitions. Second operand has 52 states, 52 states have (on average 6.5576923076923075) internal successors, (341), 52 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:41:16,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:41:16,207 INFO L93 Difference]: Finished difference Result 18777 states and 21063 transitions. [2022-10-16 02:41:16,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-10-16 02:41:16,208 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 6.5576923076923075) internal successors, (341), 52 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-10-16 02:41:16,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:41:16,222 INFO L225 Difference]: With dead ends: 18777 [2022-10-16 02:41:16,223 INFO L226 Difference]: Without dead ends: 18777 [2022-10-16 02:41:16,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7333 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=2710, Invalid=25346, Unknown=0, NotChecked=0, Total=28056 [2022-10-16 02:41:16,225 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 1941 mSDsluCounter, 21877 mSDsCounter, 0 mSdLazyCounter, 7676 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1941 SdHoareTripleChecker+Valid, 22569 SdHoareTripleChecker+Invalid, 7786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 7676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-10-16 02:41:16,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1941 Valid, 22569 Invalid, 7786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [110 Valid, 7676 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-10-16 02:41:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18777 states. [2022-10-16 02:41:16,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18777 to 11121. [2022-10-16 02:41:16,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11121 states, 11120 states have (on average 1.1294064748201438) internal successors, (12559), 11120 states have internal predecessors, (12559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:41:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11121 states to 11121 states and 12559 transitions. [2022-10-16 02:41:16,383 INFO L78 Accepts]: Start accepts. Automaton has 11121 states and 12559 transitions. Word has length 124 [2022-10-16 02:41:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:41:16,383 INFO L495 AbstractCegarLoop]: Abstraction has 11121 states and 12559 transitions. [2022-10-16 02:41:16,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 6.5576923076923075) internal successors, (341), 52 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:41:16,384 INFO L276 IsEmpty]: Start isEmpty. Operand 11121 states and 12559 transitions. [2022-10-16 02:41:16,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-10-16 02:41:16,387 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:41:16,387 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-10-16 02:41:16,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-10-16 02:41:16,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 02:41:16,589 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:41:16,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:41:16,590 INFO L85 PathProgramCache]: Analyzing trace with hash 70078698, now seen corresponding path program 1 times [2022-10-16 02:41:16,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:41:16,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599443218] [2022-10-16 02:41:16,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:41:16,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:41:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:41:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 37 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:41:18,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:41:18,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599443218] [2022-10-16 02:41:18,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599443218] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:41:18,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203870926] [2022-10-16 02:41:18,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:41:18,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:41:18,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:41:18,045 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:41:18,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 02:41:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:41:18,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 58 conjunts are in the unsatisfiable core [2022-10-16 02:41:18,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:41:31,013 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 37 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:41:31,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:41:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 26 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:41:38,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203870926] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:41:38,567 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:41:38,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 26, 23] total 68 [2022-10-16 02:41:38,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520588652] [2022-10-16 02:41:38,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:41:38,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-10-16 02:41:38,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:41:38,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-10-16 02:41:38,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=4169, Unknown=3, NotChecked=0, Total=4556 [2022-10-16 02:41:38,570 INFO L87 Difference]: Start difference. First operand 11121 states and 12559 transitions. Second operand has 68 states, 68 states have (on average 5.014705882352941) internal successors, (341), 68 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)