/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 03:11:47,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 03:11:47,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 03:11:47,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 03:11:47,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 03:11:47,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 03:11:47,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 03:11:47,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 03:11:47,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 03:11:47,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 03:11:47,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 03:11:47,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 03:11:47,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 03:11:47,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 03:11:47,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 03:11:47,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 03:11:47,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 03:11:47,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 03:11:47,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 03:11:47,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 03:11:47,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 03:11:47,768 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 03:11:47,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 03:11:47,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 03:11:47,769 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 03:11:47,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 03:11:47,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 03:11:47,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 03:11:47,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 03:11:47,774 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 03:11:47,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 03:11:47,775 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 03:11:47,775 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 03:11:47,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 03:11:47,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 03:11:47,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 03:11:47,776 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 03:11:47,776 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 03:11:47,777 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 03:11:47,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 03:11:47,777 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 03:11:47,777 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 03:11:47,777 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 03:11:47,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 03:11:47,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 03:11:47,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 03:11:47,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:11:47,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 03:11:47,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 03:11:47,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 03:11:47,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 03:11:47,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 03:11:48,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 03:11:48,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 03:11:48,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 03:11:48,271 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 03:11:48,272 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 03:11:48,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2022-10-16 03:11:48,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d144f482/1743fb3719ef480ab0b59f3c6a329dce/FLAGcb5a205ee [2022-10-16 03:11:49,124 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 03:11:49,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2022-10-16 03:11:49,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d144f482/1743fb3719ef480ab0b59f3c6a329dce/FLAGcb5a205ee [2022-10-16 03:11:49,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d144f482/1743fb3719ef480ab0b59f3c6a329dce [2022-10-16 03:11:49,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 03:11:49,446 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 03:11:49,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 03:11:49,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 03:11:49,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 03:11:49,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:11:49" (1/1) ... [2022-10-16 03:11:49,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4544855d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:49, skipping insertion in model container [2022-10-16 03:11:49,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:11:49" (1/1) ... [2022-10-16 03:11:49,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 03:11:49,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 03:11:49,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7235,7248] [2022-10-16 03:11:49,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:11:49,914 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 03:11:49,985 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7235,7248] [2022-10-16 03:11:50,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:11:50,058 INFO L208 MainTranslator]: Completed translation [2022-10-16 03:11:50,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50 WrapperNode [2022-10-16 03:11:50,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 03:11:50,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 03:11:50,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 03:11:50,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 03:11:50,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50" (1/1) ... [2022-10-16 03:11:50,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50" (1/1) ... [2022-10-16 03:11:50,194 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 588 [2022-10-16 03:11:50,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 03:11:50,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 03:11:50,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 03:11:50,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 03:11:50,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50" (1/1) ... [2022-10-16 03:11:50,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50" (1/1) ... [2022-10-16 03:11:50,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50" (1/1) ... [2022-10-16 03:11:50,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50" (1/1) ... [2022-10-16 03:11:50,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50" (1/1) ... [2022-10-16 03:11:50,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50" (1/1) ... [2022-10-16 03:11:50,276 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50" (1/1) ... [2022-10-16 03:11:50,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50" (1/1) ... [2022-10-16 03:11:50,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 03:11:50,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 03:11:50,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 03:11:50,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 03:11:50,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50" (1/1) ... [2022-10-16 03:11:50,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:11:50,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:11:50,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 03:11:50,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 03:11:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 03:11:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 03:11:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 03:11:50,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 03:11:50,765 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 03:11:50,773 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 03:11:51,442 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 03:11:51,452 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 03:11:51,452 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 03:11:51,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:11:51 BoogieIcfgContainer [2022-10-16 03:11:51,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 03:11:51,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 03:11:51,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 03:11:51,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 03:11:51,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:11:49" (1/3) ... [2022-10-16 03:11:51,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e257ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:11:51, skipping insertion in model container [2022-10-16 03:11:51,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:50" (2/3) ... [2022-10-16 03:11:51,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e257ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:11:51, skipping insertion in model container [2022-10-16 03:11:51,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:11:51" (3/3) ... [2022-10-16 03:11:51,466 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2022-10-16 03:11:51,489 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 03:11:51,489 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 03:11:51,551 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 03:11:51,560 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;@729b3ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 03:11:51,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 03:11:51,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 133 states have (on average 1.781954887218045) internal successors, (237), 135 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:51,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 03:11:51,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:51,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:51,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:51,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:51,585 INFO L85 PathProgramCache]: Analyzing trace with hash 962673951, now seen corresponding path program 1 times [2022-10-16 03:11:51,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:51,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711182638] [2022-10-16 03:11:51,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:51,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:51,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:51,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711182638] [2022-10-16 03:11:51,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711182638] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:51,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:51,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 03:11:51,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580640645] [2022-10-16 03:11:51,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:52,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:52,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:52,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:52,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:52,045 INFO L87 Difference]: Start difference. First operand has 136 states, 133 states have (on average 1.781954887218045) internal successors, (237), 135 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:52,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:52,096 INFO L93 Difference]: Finished difference Result 135 states and 235 transitions. [2022-10-16 03:11:52,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:52,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2022-10-16 03:11:52,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:52,114 INFO L225 Difference]: With dead ends: 135 [2022-10-16 03:11:52,114 INFO L226 Difference]: Without dead ends: 132 [2022-10-16 03:11:52,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:52,122 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 220 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:52,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 234 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:52,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-10-16 03:11:52,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-10-16 03:11:52,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.5572519083969465) internal successors, (204), 131 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:52,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 204 transitions. [2022-10-16 03:11:52,180 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 204 transitions. Word has length 16 [2022-10-16 03:11:52,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:52,181 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 204 transitions. [2022-10-16 03:11:52,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:52,182 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 204 transitions. [2022-10-16 03:11:52,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 03:11:52,185 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:52,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:52,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 03:11:52,188 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:52,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:52,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1933157835, now seen corresponding path program 1 times [2022-10-16 03:11:52,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:52,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066322868] [2022-10-16 03:11:52,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:52,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:52,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:52,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066322868] [2022-10-16 03:11:52,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066322868] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:52,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:52,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:52,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662055255] [2022-10-16 03:11:52,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:52,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:52,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:52,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:52,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:52,525 INFO L87 Difference]: Start difference. First operand 132 states and 204 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:52,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:52,607 INFO L93 Difference]: Finished difference Result 201 states and 314 transitions. [2022-10-16 03:11:52,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:52,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-10-16 03:11:52,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:52,611 INFO L225 Difference]: With dead ends: 201 [2022-10-16 03:11:52,611 INFO L226 Difference]: Without dead ends: 201 [2022-10-16 03:11:52,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:52,614 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 107 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:52,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 370 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:52,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-10-16 03:11:52,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 199. [2022-10-16 03:11:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 1.5808080808080809) internal successors, (313), 198 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:52,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 313 transitions. [2022-10-16 03:11:52,638 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 313 transitions. Word has length 57 [2022-10-16 03:11:52,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:52,639 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 313 transitions. [2022-10-16 03:11:52,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:52,639 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 313 transitions. [2022-10-16 03:11:52,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 03:11:52,643 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:52,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:52,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 03:11:52,644 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:52,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:52,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1883490782, now seen corresponding path program 1 times [2022-10-16 03:11:52,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:52,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534341397] [2022-10-16 03:11:52,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:52,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:52,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:52,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:52,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534341397] [2022-10-16 03:11:52,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534341397] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:52,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:52,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:52,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429966560] [2022-10-16 03:11:52,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:52,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:52,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:52,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:52,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:52,929 INFO L87 Difference]: Start difference. First operand 199 states and 313 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:52,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:52,975 INFO L93 Difference]: Finished difference Result 330 states and 526 transitions. [2022-10-16 03:11:52,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:52,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-10-16 03:11:52,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:52,980 INFO L225 Difference]: With dead ends: 330 [2022-10-16 03:11:52,980 INFO L226 Difference]: Without dead ends: 330 [2022-10-16 03:11:52,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:52,983 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 110 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:52,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 442 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:52,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-10-16 03:11:53,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 328. [2022-10-16 03:11:53,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 1.6055045871559632) internal successors, (525), 327 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:53,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 525 transitions. [2022-10-16 03:11:53,017 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 525 transitions. Word has length 59 [2022-10-16 03:11:53,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:53,018 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 525 transitions. [2022-10-16 03:11:53,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:53,019 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 525 transitions. [2022-10-16 03:11:53,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 03:11:53,022 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:53,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:53,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 03:11:53,023 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:53,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:53,024 INFO L85 PathProgramCache]: Analyzing trace with hash -111872728, now seen corresponding path program 1 times [2022-10-16 03:11:53,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:53,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737651129] [2022-10-16 03:11:53,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:53,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:53,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:53,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:53,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737651129] [2022-10-16 03:11:53,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737651129] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:53,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:53,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:53,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032079355] [2022-10-16 03:11:53,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:53,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:53,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:53,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:53,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:53,130 INFO L87 Difference]: Start difference. First operand 328 states and 525 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:53,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:53,153 INFO L93 Difference]: Finished difference Result 458 states and 736 transitions. [2022-10-16 03:11:53,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:53,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 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 61 [2022-10-16 03:11:53,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:53,158 INFO L225 Difference]: With dead ends: 458 [2022-10-16 03:11:53,158 INFO L226 Difference]: Without dead ends: 458 [2022-10-16 03:11:53,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:53,160 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 111 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:53,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 444 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:53,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-10-16 03:11:53,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 456. [2022-10-16 03:11:53,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 455 states have (on average 1.6153846153846154) internal successors, (735), 455 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:53,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 735 transitions. [2022-10-16 03:11:53,192 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 735 transitions. Word has length 61 [2022-10-16 03:11:53,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:53,193 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 735 transitions. [2022-10-16 03:11:53,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:53,193 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 735 transitions. [2022-10-16 03:11:53,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 03:11:53,196 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:53,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:53,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 03:11:53,197 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:53,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:53,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1275396395, now seen corresponding path program 1 times [2022-10-16 03:11:53,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:53,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620659187] [2022-10-16 03:11:53,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:53,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:53,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:53,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:53,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620659187] [2022-10-16 03:11:53,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620659187] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:53,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:53,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:53,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890956773] [2022-10-16 03:11:53,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:53,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:53,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:53,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:53,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:53,313 INFO L87 Difference]: Start difference. First operand 456 states and 735 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:53,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:53,336 INFO L93 Difference]: Finished difference Result 793 states and 1278 transitions. [2022-10-16 03:11:53,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:53,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 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 61 [2022-10-16 03:11:53,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:53,342 INFO L225 Difference]: With dead ends: 793 [2022-10-16 03:11:53,343 INFO L226 Difference]: Without dead ends: 793 [2022-10-16 03:11:53,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:53,345 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 105 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:53,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 380 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2022-10-16 03:11:53,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 791. [2022-10-16 03:11:53,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 790 states have (on average 1.6164556962025316) internal successors, (1277), 790 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:53,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1277 transitions. [2022-10-16 03:11:53,381 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1277 transitions. Word has length 61 [2022-10-16 03:11:53,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:53,382 INFO L495 AbstractCegarLoop]: Abstraction has 791 states and 1277 transitions. [2022-10-16 03:11:53,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:53,382 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1277 transitions. [2022-10-16 03:11:53,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 03:11:53,385 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:53,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:53,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 03:11:53,386 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:53,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:53,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1280827262, now seen corresponding path program 1 times [2022-10-16 03:11:53,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:53,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991545962] [2022-10-16 03:11:53,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:53,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:53,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:53,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991545962] [2022-10-16 03:11:53,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991545962] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:53,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:53,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:11:53,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618391501] [2022-10-16 03:11:53,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:53,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:11:53,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:53,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:11:53,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:53,570 INFO L87 Difference]: Start difference. First operand 791 states and 1277 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:53,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:53,758 INFO L93 Difference]: Finished difference Result 2854 states and 4677 transitions. [2022-10-16 03:11:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 03:11:53,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-16 03:11:53,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:53,777 INFO L225 Difference]: With dead ends: 2854 [2022-10-16 03:11:53,777 INFO L226 Difference]: Without dead ends: 2854 [2022-10-16 03:11:53,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 03:11:53,779 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 881 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:53,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1260 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:53,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2022-10-16 03:11:53,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1432. [2022-10-16 03:11:53,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 1.623340321453529) internal successors, (2323), 1431 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:53,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2323 transitions. [2022-10-16 03:11:53,842 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2323 transitions. Word has length 63 [2022-10-16 03:11:53,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:53,842 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 2323 transitions. [2022-10-16 03:11:53,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:53,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2323 transitions. [2022-10-16 03:11:53,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 03:11:53,845 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:53,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:53,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 03:11:53,846 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:53,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:53,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1113443658, now seen corresponding path program 1 times [2022-10-16 03:11:53,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:53,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114030475] [2022-10-16 03:11:53,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:53,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:53,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:53,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114030475] [2022-10-16 03:11:53,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114030475] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:53,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:53,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:11:53,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586965423] [2022-10-16 03:11:53,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:53,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:11:53,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:53,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:11:53,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:11:53,964 INFO L87 Difference]: Start difference. First operand 1432 states and 2323 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:54,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:54,041 INFO L93 Difference]: Finished difference Result 2846 states and 4675 transitions. [2022-10-16 03:11:54,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:11:54,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-10-16 03:11:54,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:54,058 INFO L225 Difference]: With dead ends: 2846 [2022-10-16 03:11:54,058 INFO L226 Difference]: Without dead ends: 2846 [2022-10-16 03:11:54,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:54,060 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 379 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:54,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 607 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:54,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2022-10-16 03:11:54,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2127. [2022-10-16 03:11:54,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 2126 states have (on average 1.6302916274694261) internal successors, (3466), 2126 states have internal predecessors, (3466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:54,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 3466 transitions. [2022-10-16 03:11:54,128 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 3466 transitions. Word has length 64 [2022-10-16 03:11:54,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:54,128 INFO L495 AbstractCegarLoop]: Abstraction has 2127 states and 3466 transitions. [2022-10-16 03:11:54,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:54,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 3466 transitions. [2022-10-16 03:11:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 03:11:54,130 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:54,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:54,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 03:11:54,131 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:54,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:54,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1248232611, now seen corresponding path program 1 times [2022-10-16 03:11:54,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:54,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802504391] [2022-10-16 03:11:54,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:54,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:54,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:54,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802504391] [2022-10-16 03:11:54,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802504391] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:54,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:54,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:54,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169728172] [2022-10-16 03:11:54,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:54,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:54,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:54,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:54,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:54,242 INFO L87 Difference]: Start difference. First operand 2127 states and 3466 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:54,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:54,279 INFO L93 Difference]: Finished difference Result 2979 states and 4839 transitions. [2022-10-16 03:11:54,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:54,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-10-16 03:11:54,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:54,297 INFO L225 Difference]: With dead ends: 2979 [2022-10-16 03:11:54,297 INFO L226 Difference]: Without dead ends: 2979 [2022-10-16 03:11:54,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:54,298 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 106 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:54,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 426 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:54,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2022-10-16 03:11:54,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2977. [2022-10-16 03:11:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2977 states, 2976 states have (on average 1.6256720430107527) internal successors, (4838), 2976 states have internal predecessors, (4838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:54,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2977 states to 2977 states and 4838 transitions. [2022-10-16 03:11:54,386 INFO L78 Accepts]: Start accepts. Automaton has 2977 states and 4838 transitions. Word has length 64 [2022-10-16 03:11:54,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:54,386 INFO L495 AbstractCegarLoop]: Abstraction has 2977 states and 4838 transitions. [2022-10-16 03:11:54,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:54,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2977 states and 4838 transitions. [2022-10-16 03:11:54,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 03:11:54,388 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:54,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:54,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 03:11:54,389 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:54,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:54,390 INFO L85 PathProgramCache]: Analyzing trace with hash 616386787, now seen corresponding path program 1 times [2022-10-16 03:11:54,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:54,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221555451] [2022-10-16 03:11:54,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:54,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:54,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:54,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:54,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221555451] [2022-10-16 03:11:54,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221555451] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:54,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:54,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:54,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279086467] [2022-10-16 03:11:54,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:54,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:54,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:54,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:54,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:54,486 INFO L87 Difference]: Start difference. First operand 2977 states and 4838 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:54,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:54,548 INFO L93 Difference]: Finished difference Result 4313 states and 7040 transitions. [2022-10-16 03:11:54,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:54,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-10-16 03:11:54,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:54,572 INFO L225 Difference]: With dead ends: 4313 [2022-10-16 03:11:54,573 INFO L226 Difference]: Without dead ends: 4313 [2022-10-16 03:11:54,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:54,574 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 116 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:54,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 467 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:54,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2022-10-16 03:11:54,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4311. [2022-10-16 03:11:54,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4311 states, 4310 states have (on average 1.6331786542923434) internal successors, (7039), 4310 states have internal predecessors, (7039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:54,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4311 states to 4311 states and 7039 transitions. [2022-10-16 03:11:54,699 INFO L78 Accepts]: Start accepts. Automaton has 4311 states and 7039 transitions. Word has length 64 [2022-10-16 03:11:54,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:54,699 INFO L495 AbstractCegarLoop]: Abstraction has 4311 states and 7039 transitions. [2022-10-16 03:11:54,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:54,700 INFO L276 IsEmpty]: Start isEmpty. Operand 4311 states and 7039 transitions. [2022-10-16 03:11:54,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 03:11:54,701 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:54,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:54,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 03:11:54,701 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:54,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:54,702 INFO L85 PathProgramCache]: Analyzing trace with hash -214961207, now seen corresponding path program 1 times [2022-10-16 03:11:54,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:54,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990692115] [2022-10-16 03:11:54,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:54,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:54,835 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 03:11:54,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:54,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990692115] [2022-10-16 03:11:54,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990692115] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:54,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:54,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:11:54,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012259214] [2022-10-16 03:11:54,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:54,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:11:54,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:54,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:11:54,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:11:54,839 INFO L87 Difference]: Start difference. First operand 4311 states and 7039 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:54,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:54,975 INFO L93 Difference]: Finished difference Result 9473 states and 15474 transitions. [2022-10-16 03:11:54,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:11:54,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-16 03:11:54,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:55,050 INFO L225 Difference]: With dead ends: 9473 [2022-10-16 03:11:55,050 INFO L226 Difference]: Without dead ends: 9473 [2022-10-16 03:11:55,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:55,051 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 377 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:55,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 681 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:55,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9473 states. [2022-10-16 03:11:55,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9473 to 6863. [2022-10-16 03:11:55,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6863 states, 6862 states have (on average 1.6264937336053629) internal successors, (11161), 6862 states have internal predecessors, (11161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:55,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6863 states to 6863 states and 11161 transitions. [2022-10-16 03:11:55,286 INFO L78 Accepts]: Start accepts. Automaton has 6863 states and 11161 transitions. Word has length 65 [2022-10-16 03:11:55,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:55,287 INFO L495 AbstractCegarLoop]: Abstraction has 6863 states and 11161 transitions. [2022-10-16 03:11:55,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:55,287 INFO L276 IsEmpty]: Start isEmpty. Operand 6863 states and 11161 transitions. [2022-10-16 03:11:55,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 03:11:55,288 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:55,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:55,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 03:11:55,288 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:55,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:55,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1872749021, now seen corresponding path program 1 times [2022-10-16 03:11:55,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:55,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694218683] [2022-10-16 03:11:55,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:55,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:55,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:55,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:55,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694218683] [2022-10-16 03:11:55,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694218683] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:55,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:55,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:11:55,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965035551] [2022-10-16 03:11:55,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:55,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:11:55,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:55,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:11:55,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:11:55,478 INFO L87 Difference]: Start difference. First operand 6863 states and 11161 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 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 03:11:55,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:55,622 INFO L93 Difference]: Finished difference Result 14653 states and 23822 transitions. [2022-10-16 03:11:55,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:11:55,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 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 03:11:55,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:55,662 INFO L225 Difference]: With dead ends: 14653 [2022-10-16 03:11:55,662 INFO L226 Difference]: Without dead ends: 14653 [2022-10-16 03:11:55,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:55,664 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 375 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:55,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 663 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:55,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14653 states. [2022-10-16 03:11:55,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14653 to 10715. [2022-10-16 03:11:56,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10715 states, 10714 states have (on average 1.6190965092402465) internal successors, (17347), 10714 states have internal predecessors, (17347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:56,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10715 states to 10715 states and 17347 transitions. [2022-10-16 03:11:56,087 INFO L78 Accepts]: Start accepts. Automaton has 10715 states and 17347 transitions. Word has length 66 [2022-10-16 03:11:56,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:56,088 INFO L495 AbstractCegarLoop]: Abstraction has 10715 states and 17347 transitions. [2022-10-16 03:11:56,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 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 03:11:56,089 INFO L276 IsEmpty]: Start isEmpty. Operand 10715 states and 17347 transitions. [2022-10-16 03:11:56,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 03:11:56,090 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:56,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:56,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 03:11:56,091 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:56,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:56,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1396799506, now seen corresponding path program 1 times [2022-10-16 03:11:56,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:56,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067093240] [2022-10-16 03:11:56,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:56,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:56,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:56,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067093240] [2022-10-16 03:11:56,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067093240] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:56,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:56,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:11:56,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485176191] [2022-10-16 03:11:56,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:56,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:11:56,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:56,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:11:56,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:56,373 INFO L87 Difference]: Start difference. First operand 10715 states and 17347 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:56,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:56,508 INFO L93 Difference]: Finished difference Result 10717 states and 17223 transitions. [2022-10-16 03:11:56,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:11:56,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-10-16 03:11:56,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:56,535 INFO L225 Difference]: With dead ends: 10717 [2022-10-16 03:11:56,535 INFO L226 Difference]: Without dead ends: 10717 [2022-10-16 03:11:56,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:11:56,537 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 269 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:56,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 551 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:56,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10717 states. [2022-10-16 03:11:56,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10717 to 10715. [2022-10-16 03:11:56,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10715 states, 10714 states have (on average 1.607429531454172) internal successors, (17222), 10714 states have internal predecessors, (17222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:56,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10715 states to 10715 states and 17222 transitions. [2022-10-16 03:11:56,888 INFO L78 Accepts]: Start accepts. Automaton has 10715 states and 17222 transitions. Word has length 68 [2022-10-16 03:11:56,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:56,889 INFO L495 AbstractCegarLoop]: Abstraction has 10715 states and 17222 transitions. [2022-10-16 03:11:56,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:56,889 INFO L276 IsEmpty]: Start isEmpty. Operand 10715 states and 17222 transitions. [2022-10-16 03:11:56,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 03:11:56,890 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:56,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:56,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 03:11:56,891 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:56,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash -164512453, now seen corresponding path program 1 times [2022-10-16 03:11:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:56,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753897704] [2022-10-16 03:11:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:56,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:57,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:57,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:57,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753897704] [2022-10-16 03:11:57,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753897704] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:57,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:57,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:11:57,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710636714] [2022-10-16 03:11:57,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:57,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:11:57,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:57,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:11:57,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:57,138 INFO L87 Difference]: Start difference. First operand 10715 states and 17222 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:57,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:57,382 INFO L93 Difference]: Finished difference Result 20027 states and 31938 transitions. [2022-10-16 03:11:57,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:11:57,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 03:11:57,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:57,437 INFO L225 Difference]: With dead ends: 20027 [2022-10-16 03:11:57,437 INFO L226 Difference]: Without dead ends: 20027 [2022-10-16 03:11:57,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:11:57,439 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 367 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:57,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 560 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:57,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20027 states. [2022-10-16 03:11:57,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20027 to 20025. [2022-10-16 03:11:57,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20025 states, 20024 states have (on average 1.5949360767079506) internal successors, (31937), 20024 states have internal predecessors, (31937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20025 states to 20025 states and 31937 transitions. [2022-10-16 03:11:58,006 INFO L78 Accepts]: Start accepts. Automaton has 20025 states and 31937 transitions. Word has length 71 [2022-10-16 03:11:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:58,007 INFO L495 AbstractCegarLoop]: Abstraction has 20025 states and 31937 transitions. [2022-10-16 03:11:58,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:58,007 INFO L276 IsEmpty]: Start isEmpty. Operand 20025 states and 31937 transitions. [2022-10-16 03:11:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 03:11:58,008 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:58,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:58,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 03:11:58,009 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:58,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:58,010 INFO L85 PathProgramCache]: Analyzing trace with hash -806828053, now seen corresponding path program 1 times [2022-10-16 03:11:58,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:58,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653871088] [2022-10-16 03:11:58,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:58,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:58,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:58,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:58,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653871088] [2022-10-16 03:11:58,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653871088] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:58,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:58,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:11:58,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736077022] [2022-10-16 03:11:58,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:58,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:11:58,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:58,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:11:58,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:58,602 INFO L87 Difference]: Start difference. First operand 20025 states and 31937 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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 03:11:58,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:58,808 INFO L93 Difference]: Finished difference Result 38401 states and 60578 transitions. [2022-10-16 03:11:58,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:11:58,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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 03:11:58,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:58,978 INFO L225 Difference]: With dead ends: 38401 [2022-10-16 03:11:58,978 INFO L226 Difference]: Without dead ends: 38401 [2022-10-16 03:11:58,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:11:58,979 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 234 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:58,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 942 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38401 states. [2022-10-16 03:11:59,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38401 to 20749. [2022-10-16 03:11:59,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20749 states, 20748 states have (on average 1.573742047426258) internal successors, (32652), 20748 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 03:11:59,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20749 states to 20749 states and 32652 transitions. [2022-10-16 03:11:59,682 INFO L78 Accepts]: Start accepts. Automaton has 20749 states and 32652 transitions. Word has length 72 [2022-10-16 03:11:59,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:59,682 INFO L495 AbstractCegarLoop]: Abstraction has 20749 states and 32652 transitions. [2022-10-16 03:11:59,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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 03:11:59,683 INFO L276 IsEmpty]: Start isEmpty. Operand 20749 states and 32652 transitions. [2022-10-16 03:11:59,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-16 03:11:59,686 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:59,686 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:59,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 03:11:59,686 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:59,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:59,687 INFO L85 PathProgramCache]: Analyzing trace with hash 25494517, now seen corresponding path program 1 times [2022-10-16 03:11:59,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:59,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34663937] [2022-10-16 03:11:59,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:59,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:59,989 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 03:11:59,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:59,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34663937] [2022-10-16 03:11:59,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34663937] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:59,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:59,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:11:59,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040536863] [2022-10-16 03:11:59,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:59,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:11:59,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:59,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:11:59,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:59,992 INFO L87 Difference]: Start difference. First operand 20749 states and 32652 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:00,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:12:00,241 INFO L93 Difference]: Finished difference Result 40765 states and 64193 transitions. [2022-10-16 03:12:00,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:12:00,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-10-16 03:12:00,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:12:00,450 INFO L225 Difference]: With dead ends: 40765 [2022-10-16 03:12:00,450 INFO L226 Difference]: Without dead ends: 40765 [2022-10-16 03:12:00,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:12:00,451 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 483 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:12:00,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 871 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:12:00,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40765 states. [2022-10-16 03:12:01,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40765 to 31835. [2022-10-16 03:12:01,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31835 states, 31834 states have (on average 1.572532512408117) internal successors, (50060), 31834 states have internal predecessors, (50060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:01,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31835 states to 31835 states and 50060 transitions. [2022-10-16 03:12:01,318 INFO L78 Accepts]: Start accepts. Automaton has 31835 states and 50060 transitions. Word has length 93 [2022-10-16 03:12:01,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:12:01,319 INFO L495 AbstractCegarLoop]: Abstraction has 31835 states and 50060 transitions. [2022-10-16 03:12:01,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:01,319 INFO L276 IsEmpty]: Start isEmpty. Operand 31835 states and 50060 transitions. [2022-10-16 03:12:01,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-16 03:12:01,322 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:12:01,322 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:12:01,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 03:12:01,322 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:12:01,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:12:01,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1396393528, now seen corresponding path program 1 times [2022-10-16 03:12:01,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:12:01,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449249531] [2022-10-16 03:12:01,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:12:01,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:12:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:12:01,663 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 03:12:01,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:12:01,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449249531] [2022-10-16 03:12:01,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449249531] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:12:01,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:12:01,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:12:01,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937781250] [2022-10-16 03:12:01,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:12:01,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:12:01,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:12:01,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:12:01,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:12:01,666 INFO L87 Difference]: Start difference. First operand 31835 states and 50060 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:01,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:12:01,907 INFO L93 Difference]: Finished difference Result 44657 states and 70357 transitions. [2022-10-16 03:12:01,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:12:01,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-10-16 03:12:01,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:12:02,032 INFO L225 Difference]: With dead ends: 44657 [2022-10-16 03:12:02,032 INFO L226 Difference]: Without dead ends: 44657 [2022-10-16 03:12:02,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:12:02,033 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 477 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:12:02,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 942 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:12:02,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44657 states. [2022-10-16 03:12:02,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44657 to 43067. [2022-10-16 03:12:03,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43067 states, 43066 states have (on average 1.573445409371662) internal successors, (67762), 43066 states have internal predecessors, (67762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:03,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43067 states to 43067 states and 67762 transitions. [2022-10-16 03:12:03,401 INFO L78 Accepts]: Start accepts. Automaton has 43067 states and 67762 transitions. Word has length 93 [2022-10-16 03:12:03,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:12:03,402 INFO L495 AbstractCegarLoop]: Abstraction has 43067 states and 67762 transitions. [2022-10-16 03:12:03,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:03,402 INFO L276 IsEmpty]: Start isEmpty. Operand 43067 states and 67762 transitions. [2022-10-16 03:12:03,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-16 03:12:03,414 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:12:03,417 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:12:03,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 03:12:03,419 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:12:03,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:12:03,419 INFO L85 PathProgramCache]: Analyzing trace with hash 71809854, now seen corresponding path program 1 times [2022-10-16 03:12:03,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:12:03,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010762868] [2022-10-16 03:12:03,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:12:03,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:12:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:12:03,678 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:12:03,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:12:03,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010762868] [2022-10-16 03:12:03,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010762868] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:12:03,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:12:03,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:12:03,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967978253] [2022-10-16 03:12:03,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:12:03,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:12:03,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:12:03,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:12:03,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:12:03,681 INFO L87 Difference]: Start difference. First operand 43067 states and 67762 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:03,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:12:03,924 INFO L93 Difference]: Finished difference Result 51041 states and 80545 transitions. [2022-10-16 03:12:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:12:03,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 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 93 [2022-10-16 03:12:03,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:12:04,023 INFO L225 Difference]: With dead ends: 51041 [2022-10-16 03:12:04,023 INFO L226 Difference]: Without dead ends: 51041 [2022-10-16 03:12:04,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:12:04,024 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 479 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:12:04,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 920 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:12:04,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51041 states. [2022-10-16 03:12:05,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51041 to 49451. [2022-10-16 03:12:05,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49451 states, 49450 states have (on average 1.5763397371081902) internal successors, (77950), 49450 states have internal predecessors, (77950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:05,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49451 states to 49451 states and 77950 transitions. [2022-10-16 03:12:05,184 INFO L78 Accepts]: Start accepts. Automaton has 49451 states and 77950 transitions. Word has length 93 [2022-10-16 03:12:05,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:12:05,184 INFO L495 AbstractCegarLoop]: Abstraction has 49451 states and 77950 transitions. [2022-10-16 03:12:05,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:05,185 INFO L276 IsEmpty]: Start isEmpty. Operand 49451 states and 77950 transitions. [2022-10-16 03:12:05,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-16 03:12:05,188 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:12:05,188 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:12:05,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 03:12:05,189 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:12:05,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:12:05,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1205465200, now seen corresponding path program 1 times [2022-10-16 03:12:05,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:12:05,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252915673] [2022-10-16 03:12:05,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:12:05,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:12:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:12:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:12:05,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:12:05,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252915673] [2022-10-16 03:12:05,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252915673] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:12:05,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:12:05,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:12:05,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852085827] [2022-10-16 03:12:05,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:12:05,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:12:05,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:12:05,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:12:05,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:12:05,378 INFO L87 Difference]: Start difference. First operand 49451 states and 77950 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:05,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:12:05,876 INFO L93 Difference]: Finished difference Result 43011 states and 67829 transitions. [2022-10-16 03:12:05,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:12:05,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-10-16 03:12:05,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:12:05,998 INFO L225 Difference]: With dead ends: 43011 [2022-10-16 03:12:05,998 INFO L226 Difference]: Without dead ends: 43011 [2022-10-16 03:12:05,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:12:06,000 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 87 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:12:06,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 433 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:12:06,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43011 states. [2022-10-16 03:12:06,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43011 to 43005. [2022-10-16 03:12:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43005 states, 43004 states have (on average 1.5771556134313087) internal successors, (67824), 43004 states have internal predecessors, (67824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:07,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43005 states to 43005 states and 67824 transitions. [2022-10-16 03:12:07,126 INFO L78 Accepts]: Start accepts. Automaton has 43005 states and 67824 transitions. Word has length 94 [2022-10-16 03:12:07,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:12:07,126 INFO L495 AbstractCegarLoop]: Abstraction has 43005 states and 67824 transitions. [2022-10-16 03:12:07,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:07,126 INFO L276 IsEmpty]: Start isEmpty. Operand 43005 states and 67824 transitions. [2022-10-16 03:12:07,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-16 03:12:07,129 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:12:07,129 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:12:07,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 03:12:07,130 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:12:07,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:12:07,130 INFO L85 PathProgramCache]: Analyzing trace with hash -209592631, now seen corresponding path program 1 times [2022-10-16 03:12:07,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:12:07,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996779980] [2022-10-16 03:12:07,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:12:07,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:12:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:12:07,486 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 03:12:07,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:12:07,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996779980] [2022-10-16 03:12:07,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996779980] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:12:07,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:12:07,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:12:07,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324468474] [2022-10-16 03:12:07,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:12:07,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:12:07,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:12:07,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:12:07,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:12:07,491 INFO L87 Difference]: Start difference. First operand 43005 states and 67824 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:08,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:12:08,020 INFO L93 Difference]: Finished difference Result 76471 states and 120752 transitions. [2022-10-16 03:12:08,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:12:08,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 94 [2022-10-16 03:12:08,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:12:08,167 INFO L225 Difference]: With dead ends: 76471 [2022-10-16 03:12:08,167 INFO L226 Difference]: Without dead ends: 76471 [2022-10-16 03:12:08,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 03:12:08,168 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 387 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:12:08,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 567 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:12:08,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76471 states. [2022-10-16 03:12:09,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76471 to 66037. [2022-10-16 03:12:09,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66037 states, 66036 states have (on average 1.579532376279605) internal successors, (104306), 66036 states have internal predecessors, (104306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:09,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66037 states to 66037 states and 104306 transitions. [2022-10-16 03:12:09,227 INFO L78 Accepts]: Start accepts. Automaton has 66037 states and 104306 transitions. Word has length 94 [2022-10-16 03:12:09,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:12:09,227 INFO L495 AbstractCegarLoop]: Abstraction has 66037 states and 104306 transitions. [2022-10-16 03:12:09,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:09,228 INFO L276 IsEmpty]: Start isEmpty. Operand 66037 states and 104306 transitions. [2022-10-16 03:12:09,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-16 03:12:09,229 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:12:09,230 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:12:09,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 03:12:09,230 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:12:09,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:12:09,231 INFO L85 PathProgramCache]: Analyzing trace with hash 2003616192, now seen corresponding path program 1 times [2022-10-16 03:12:09,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:12:09,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275784070] [2022-10-16 03:12:09,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:12:09,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:12:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:12:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:12:09,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:12:09,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275784070] [2022-10-16 03:12:09,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275784070] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:12:09,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:12:09,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:12:09,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857805512] [2022-10-16 03:12:09,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:12:09,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:12:09,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:12:09,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:12:09,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:12:09,322 INFO L87 Difference]: Start difference. First operand 66037 states and 104306 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:10,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:12:10,098 INFO L93 Difference]: Finished difference Result 112120 states and 176680 transitions. [2022-10-16 03:12:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:12:10,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 94 [2022-10-16 03:12:10,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:12:10,294 INFO L225 Difference]: With dead ends: 112120 [2022-10-16 03:12:10,294 INFO L226 Difference]: Without dead ends: 112120 [2022-10-16 03:12:10,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:12:10,295 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 96 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:12:10,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 367 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:12:10,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112120 states. [2022-10-16 03:12:11,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112120 to 111799. [2022-10-16 03:12:12,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111799 states, 111798 states have (on average 1.5774879693733341) internal successors, (176360), 111798 states have internal predecessors, (176360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:12,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111799 states to 111799 states and 176360 transitions. [2022-10-16 03:12:12,683 INFO L78 Accepts]: Start accepts. Automaton has 111799 states and 176360 transitions. Word has length 94 [2022-10-16 03:12:12,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:12:12,683 INFO L495 AbstractCegarLoop]: Abstraction has 111799 states and 176360 transitions. [2022-10-16 03:12:12,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 111799 states and 176360 transitions. [2022-10-16 03:12:12,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-16 03:12:12,695 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:12:12,696 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:12:12,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 03:12:12,696 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:12:12,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:12:12,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2131366022, now seen corresponding path program 1 times [2022-10-16 03:12:12,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:12:12,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953818014] [2022-10-16 03:12:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:12:12,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:12:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:12:13,046 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:12:13,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:12:13,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953818014] [2022-10-16 03:12:13,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953818014] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:12:13,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:12:13,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:12:13,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128834952] [2022-10-16 03:12:13,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:12:13,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:12:13,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:12:13,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:12:13,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:12:13,051 INFO L87 Difference]: Start difference. First operand 111799 states and 176360 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:13,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:12:13,683 INFO L93 Difference]: Finished difference Result 156132 states and 245898 transitions. [2022-10-16 03:12:13,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:12:13,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 94 [2022-10-16 03:12:13,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:12:14,436 INFO L225 Difference]: With dead ends: 156132 [2022-10-16 03:12:14,440 INFO L226 Difference]: Without dead ends: 156132 [2022-10-16 03:12:14,440 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 03:12:14,442 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 223 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:12:14,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 621 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:12:14,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156132 states. [2022-10-16 03:12:16,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156132 to 149891. [2022-10-16 03:12:16,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149891 states, 149890 states have (on average 1.5744546000400295) internal successors, (235995), 149890 states have internal predecessors, (235995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:17,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149891 states to 149891 states and 235995 transitions. [2022-10-16 03:12:17,259 INFO L78 Accepts]: Start accepts. Automaton has 149891 states and 235995 transitions. Word has length 94 [2022-10-16 03:12:17,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:12:17,260 INFO L495 AbstractCegarLoop]: Abstraction has 149891 states and 235995 transitions. [2022-10-16 03:12:17,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand 149891 states and 235995 transitions. [2022-10-16 03:12:17,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-16 03:12:17,288 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:12:17,288 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:12:17,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 03:12:17,289 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:12:17,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:12:17,290 INFO L85 PathProgramCache]: Analyzing trace with hash 230310247, now seen corresponding path program 1 times [2022-10-16 03:12:17,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:12:17,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91185334] [2022-10-16 03:12:17,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:12:17,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:12:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:12:17,784 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 03:12:17,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:12:17,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91185334] [2022-10-16 03:12:17,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91185334] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:12:17,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:12:17,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:12:17,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116935948] [2022-10-16 03:12:17,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:12:17,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:12:17,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:12:17,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:12:17,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:12:17,787 INFO L87 Difference]: Start difference. First operand 149891 states and 235995 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:19,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:12:19,509 INFO L93 Difference]: Finished difference Result 259423 states and 409357 transitions. [2022-10-16 03:12:19,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:12:19,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 94 [2022-10-16 03:12:19,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:12:20,170 INFO L225 Difference]: With dead ends: 259423 [2022-10-16 03:12:20,170 INFO L226 Difference]: Without dead ends: 259423 [2022-10-16 03:12:20,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 03:12:20,172 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 398 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:12:20,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 545 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:12:20,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259423 states. [2022-10-16 03:12:23,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259423 to 226239. [2022-10-16 03:12:23,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226239 states, 226238 states have (on average 1.5783334364695587) internal successors, (357079), 226238 states have internal predecessors, (357079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:25,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226239 states to 226239 states and 357079 transitions. [2022-10-16 03:12:25,111 INFO L78 Accepts]: Start accepts. Automaton has 226239 states and 357079 transitions. Word has length 94 [2022-10-16 03:12:25,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:12:25,112 INFO L495 AbstractCegarLoop]: Abstraction has 226239 states and 357079 transitions. [2022-10-16 03:12:25,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:25,112 INFO L276 IsEmpty]: Start isEmpty. Operand 226239 states and 357079 transitions. [2022-10-16 03:12:25,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-16 03:12:25,114 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:12:25,114 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:12:25,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 03:12:25,117 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:12:25,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:12:25,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1884084818, now seen corresponding path program 1 times [2022-10-16 03:12:25,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:12:25,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564891009] [2022-10-16 03:12:25,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:12:25,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:12:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:12:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:12:25,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:12:25,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564891009] [2022-10-16 03:12:25,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564891009] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:12:25,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:12:25,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:12:25,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21760543] [2022-10-16 03:12:25,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:12:25,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:12:25,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:12:25,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:12:25,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:12:25,232 INFO L87 Difference]: Start difference. First operand 226239 states and 357079 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:27,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:12:27,856 INFO L93 Difference]: Finished difference Result 440461 states and 690209 transitions. [2022-10-16 03:12:27,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:12:27,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-10-16 03:12:27,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:12:28,966 INFO L225 Difference]: With dead ends: 440461 [2022-10-16 03:12:28,966 INFO L226 Difference]: Without dead ends: 440461 [2022-10-16 03:12:28,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:12:28,967 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 153 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:12:28,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 490 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:12:29,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440461 states. [2022-10-16 03:12:35,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440461 to 440459. [2022-10-16 03:12:36,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440459 states, 440458 states have (on average 1.567023416534607) internal successors, (690208), 440458 states have internal predecessors, (690208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:38,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440459 states to 440459 states and 690208 transitions. [2022-10-16 03:12:38,830 INFO L78 Accepts]: Start accepts. Automaton has 440459 states and 690208 transitions. Word has length 95 [2022-10-16 03:12:38,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:12:38,831 INFO L495 AbstractCegarLoop]: Abstraction has 440459 states and 690208 transitions. [2022-10-16 03:12:38,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 440459 states and 690208 transitions. [2022-10-16 03:12:38,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-16 03:12:38,836 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:12:38,837 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:12:38,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 03:12:38,837 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:12:38,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:12:38,838 INFO L85 PathProgramCache]: Analyzing trace with hash -975200968, now seen corresponding path program 1 times [2022-10-16 03:12:38,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:12:38,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463279814] [2022-10-16 03:12:38,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:12:38,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:12:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:12:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:12:38,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:12:38,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463279814] [2022-10-16 03:12:38,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463279814] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:12:38,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:12:38,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:12:38,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607041537] [2022-10-16 03:12:38,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:12:38,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:12:38,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:12:38,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:12:38,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:12:38,971 INFO L87 Difference]: Start difference. First operand 440459 states and 690208 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:12:44,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:12:44,421 INFO L93 Difference]: Finished difference Result 855537 states and 1330160 transitions. [2022-10-16 03:12:44,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:12:44,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-10-16 03:12:44,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:12:48,088 INFO L225 Difference]: With dead ends: 855537 [2022-10-16 03:12:48,089 INFO L226 Difference]: Without dead ends: 855537 [2022-10-16 03:12:48,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:12:48,104 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 135 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:12:48,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 457 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:12:48,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855537 states. [2022-10-16 03:13:02,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855537 to 855535. [2022-10-16 03:13:04,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855535 states, 855534 states have (on average 1.5547704708404342) internal successors, (1330159), 855534 states have internal predecessors, (1330159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:09,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855535 states to 855535 states and 1330159 transitions. [2022-10-16 03:13:09,393 INFO L78 Accepts]: Start accepts. Automaton has 855535 states and 1330159 transitions. Word has length 95 [2022-10-16 03:13:09,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:09,394 INFO L495 AbstractCegarLoop]: Abstraction has 855535 states and 1330159 transitions. [2022-10-16 03:13:09,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:09,394 INFO L276 IsEmpty]: Start isEmpty. Operand 855535 states and 1330159 transitions. [2022-10-16 03:13:09,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-16 03:13:09,400 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:09,400 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:13:09,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 03:13:09,401 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:09,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:09,401 INFO L85 PathProgramCache]: Analyzing trace with hash 88407078, now seen corresponding path program 1 times [2022-10-16 03:13:09,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:09,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011652475] [2022-10-16 03:13:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:09,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:13:10,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:10,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011652475] [2022-10-16 03:13:10,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011652475] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:10,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:10,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:13:10,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407501193] [2022-10-16 03:13:10,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:10,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:13:10,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:10,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:13:10,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:13:10,206 INFO L87 Difference]: Start difference. First operand 855535 states and 1330159 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:15,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:15,061 INFO L93 Difference]: Finished difference Result 855667 states and 1320819 transitions. [2022-10-16 03:13:15,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:13:15,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-10-16 03:13:15,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:18,076 INFO L225 Difference]: With dead ends: 855667 [2022-10-16 03:13:18,076 INFO L226 Difference]: Without dead ends: 855667 [2022-10-16 03:13:18,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:13:18,078 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 146 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:18,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 552 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:13:19,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855667 states. [2022-10-16 03:13:36,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855667 to 855665. [2022-10-16 03:13:38,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855665 states, 855664 states have (on average 1.5436175882121954) internal successors, (1320818), 855664 states have internal predecessors, (1320818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:44,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855665 states to 855665 states and 1320818 transitions. [2022-10-16 03:13:44,891 INFO L78 Accepts]: Start accepts. Automaton has 855665 states and 1320818 transitions. Word has length 98 [2022-10-16 03:13:44,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:13:44,891 INFO L495 AbstractCegarLoop]: Abstraction has 855665 states and 1320818 transitions. [2022-10-16 03:13:44,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:44,892 INFO L276 IsEmpty]: Start isEmpty. Operand 855665 states and 1320818 transitions. [2022-10-16 03:13:44,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-16 03:13:44,897 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:13:44,897 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:13:44,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 03:13:44,898 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:13:44,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:13:44,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1385537563, now seen corresponding path program 1 times [2022-10-16 03:13:44,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:13:44,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083100800] [2022-10-16 03:13:44,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:13:44,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:13:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:13:45,218 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:13:45,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:13:45,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083100800] [2022-10-16 03:13:45,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083100800] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:13:45,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:13:45,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:13:45,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218267692] [2022-10-16 03:13:45,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:13:45,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:13:45,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:13:45,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:13:45,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:13:45,222 INFO L87 Difference]: Start difference. First operand 855665 states and 1320818 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:13:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:13:52,044 INFO L93 Difference]: Finished difference Result 925281 states and 1426832 transitions. [2022-10-16 03:13:52,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:13:52,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 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 98 [2022-10-16 03:13:52,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:13:55,513 INFO L225 Difference]: With dead ends: 925281 [2022-10-16 03:13:55,513 INFO L226 Difference]: Without dead ends: 925281 [2022-10-16 03:13:55,514 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 03:13:55,514 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 211 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:13:55,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 635 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:13:56,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925281 states.