/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:41:34,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:41:34,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:41:34,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 17:41:34,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:41:34,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:41:34,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:41:34,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:41:34,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:41:34,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:41:34,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:41:34,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:41:34,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:41:34,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:41:34,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:41:34,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:41:34,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:41:34,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:41:34,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:41:34,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:41:34,316 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 [2022-10-15 17:41:34,372 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:41:34,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:41:34,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:41:34,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:41:34,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:41:34,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:41:34,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:41:34,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:41:34,379 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:41:34,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:41:34,380 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:41:34,380 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:41:34,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:41:34,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:41:34,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:41:34,381 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:41:34,381 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:41:34,382 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:41:34,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:41:34,382 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:41:34,382 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:41:34,382 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:41:34,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:41:34,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:41:34,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:41:34,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:41:34,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:41:34,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:41:34,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:41:34,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:41:34,385 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:41:34,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:41:34,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:41:34,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:41:34,857 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:41:34,858 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:41:34,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:41:34,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbda13d7e/b7f32078f4894d86932c1ee9ee61b6f1/FLAGc4306c7f8 [2022-10-15 17:41:35,602 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:41:35,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:41:35,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbda13d7e/b7f32078f4894d86932c1ee9ee61b6f1/FLAGc4306c7f8 [2022-10-15 17:41:35,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbda13d7e/b7f32078f4894d86932c1ee9ee61b6f1 [2022-10-15 17:41:35,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:41:35,926 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:41:35,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:41:35,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:41:35,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:41:35,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:41:35" (1/1) ... [2022-10-15 17:41:35,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@146176a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:35, skipping insertion in model container [2022-10-15 17:41:35,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:41:35" (1/1) ... [2022-10-15 17:41:35,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:41:36,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:41:36,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6732,6745] [2022-10-15 17:41:36,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:41:36,403 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:41:36,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6732,6745] [2022-10-15 17:41:36,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:41:36,522 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:41:36,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36 WrapperNode [2022-10-15 17:41:36,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:41:36,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:41:36,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:41:36,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:41:36,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36" (1/1) ... [2022-10-15 17:41:36,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36" (1/1) ... [2022-10-15 17:41:36,600 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 492 [2022-10-15 17:41:36,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:41:36,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:41:36,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:41:36,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:41:36,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36" (1/1) ... [2022-10-15 17:41:36,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36" (1/1) ... [2022-10-15 17:41:36,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36" (1/1) ... [2022-10-15 17:41:36,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36" (1/1) ... [2022-10-15 17:41:36,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36" (1/1) ... [2022-10-15 17:41:36,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36" (1/1) ... [2022-10-15 17:41:36,684 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36" (1/1) ... [2022-10-15 17:41:36,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36" (1/1) ... [2022-10-15 17:41:36,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:41:36,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:41:36,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:41:36,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:41:36,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36" (1/1) ... [2022-10-15 17:41:36,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:41:36,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:41:36,741 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) [2022-10-15 17:41:36,744 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 [2022-10-15 17:41:36,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:41:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:41:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:41:36,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:41:37,171 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:41:37,178 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:41:38,024 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:41:38,037 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:41:38,037 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:41:38,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:41:38 BoogieIcfgContainer [2022-10-15 17:41:38,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:41:38,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:41:38,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:41:38,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:41:38,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:41:35" (1/3) ... [2022-10-15 17:41:38,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af885fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:41:38, skipping insertion in model container [2022-10-15 17:41:38,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:41:36" (2/3) ... [2022-10-15 17:41:38,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af885fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:41:38, skipping insertion in model container [2022-10-15 17:41:38,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:41:38" (3/3) ... [2022-10-15 17:41:38,054 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:41:38,081 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:41:38,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:41:38,155 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:41:38,167 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;@2f121ec2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:41:38,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:41:38,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 116 states have (on average 1.7413793103448276) internal successors, (202), 118 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:38,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 17:41:38,188 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:38,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 17:41:38,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:38,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:38,199 INFO L85 PathProgramCache]: Analyzing trace with hash 940773, now seen corresponding path program 1 times [2022-10-15 17:41:38,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:38,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267777451] [2022-10-15 17:41:38,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:38,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:38,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:38,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267777451] [2022-10-15 17:41:38,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267777451] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:38,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:38,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:41:38,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219306092] [2022-10-15 17:41:38,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:38,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:41:38,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:38,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:41:38,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:41:38,633 INFO L87 Difference]: Start difference. First operand has 119 states, 116 states have (on average 1.7413793103448276) internal successors, (202), 118 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:38,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:38,690 INFO L93 Difference]: Finished difference Result 118 states and 200 transitions. [2022-10-15 17:41:38,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:41:38,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-15 17:41:38,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:38,713 INFO L225 Difference]: With dead ends: 118 [2022-10-15 17:41:38,714 INFO L226 Difference]: Without dead ends: 115 [2022-10-15 17:41:38,716 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 [2022-10-15 17:41:38,722 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 197 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 199 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 [2022-10-15 17:41:38,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 199 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:41:38,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-10-15 17:41:38,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-10-15 17:41:38,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.3771929824561404) internal successors, (157), 114 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 157 transitions. [2022-10-15 17:41:38,792 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 157 transitions. Word has length 4 [2022-10-15 17:41:38,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:38,793 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 157 transitions. [2022-10-15 17:41:38,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:38,794 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 157 transitions. [2022-10-15 17:41:38,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 17:41:38,799 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:38,799 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, 1] [2022-10-15 17:41:38,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:41:38,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:38,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:38,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1122612567, now seen corresponding path program 1 times [2022-10-15 17:41:38,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:38,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071973585] [2022-10-15 17:41:38,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:38,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:39,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:39,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071973585] [2022-10-15 17:41:39,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071973585] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:39,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:39,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:41:39,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843285360] [2022-10-15 17:41:39,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:39,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:41:39,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:39,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:41:39,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:41:39,228 INFO L87 Difference]: Start difference. First operand 115 states and 157 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:39,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:39,283 INFO L93 Difference]: Finished difference Result 179 states and 257 transitions. [2022-10-15 17:41:39,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:41:39,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-10-15 17:41:39,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:39,290 INFO L225 Difference]: With dead ends: 179 [2022-10-15 17:41:39,290 INFO L226 Difference]: Without dead ends: 179 [2022-10-15 17:41:39,292 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 [2022-10-15 17:41:39,294 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 99 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 348 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 [2022-10-15 17:41:39,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 348 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:41:39,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-10-15 17:41:39,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2022-10-15 17:41:39,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.4545454545454546) internal successors, (256), 176 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:39,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 256 transitions. [2022-10-15 17:41:39,320 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 256 transitions. Word has length 73 [2022-10-15 17:41:39,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:39,321 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 256 transitions. [2022-10-15 17:41:39,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:39,322 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 256 transitions. [2022-10-15 17:41:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 17:41:39,325 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:39,325 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, 1, 1] [2022-10-15 17:41:39,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:41:39,326 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:39,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1622464055, now seen corresponding path program 1 times [2022-10-15 17:41:39,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:39,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305569584] [2022-10-15 17:41:39,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:39,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:39,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:39,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305569584] [2022-10-15 17:41:39,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305569584] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:39,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:39,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:41:39,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815427580] [2022-10-15 17:41:39,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:39,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:41:39,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:39,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:41:39,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:41:39,617 INFO L87 Difference]: Start difference. First operand 177 states and 256 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:39,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:39,661 INFO L93 Difference]: Finished difference Result 295 states and 441 transitions. [2022-10-15 17:41:39,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:41:39,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-15 17:41:39,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:39,665 INFO L225 Difference]: With dead ends: 295 [2022-10-15 17:41:39,666 INFO L226 Difference]: Without dead ends: 295 [2022-10-15 17:41:39,666 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 [2022-10-15 17:41:39,668 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 94 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 344 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 [2022-10-15 17:41:39,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 344 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:41:39,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-10-15 17:41:39,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 293. [2022-10-15 17:41:39,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 292 states have (on average 1.5068493150684932) internal successors, (440), 292 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:39,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 440 transitions. [2022-10-15 17:41:39,707 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 440 transitions. Word has length 74 [2022-10-15 17:41:39,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:39,708 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 440 transitions. [2022-10-15 17:41:39,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:39,708 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 440 transitions. [2022-10-15 17:41:39,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-15 17:41:39,719 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:39,719 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, 1, 1, 1] [2022-10-15 17:41:39,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:41:39,720 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:39,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:39,722 INFO L85 PathProgramCache]: Analyzing trace with hash 549627260, now seen corresponding path program 1 times [2022-10-15 17:41:39,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:39,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310345751] [2022-10-15 17:41:39,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:39,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:39,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:39,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:39,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310345751] [2022-10-15 17:41:39,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310345751] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:39,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:39,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:41:39,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298448750] [2022-10-15 17:41:39,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:39,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:41:39,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:39,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:41:39,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:41:39,968 INFO L87 Difference]: Start difference. First operand 293 states and 440 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:40,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:40,005 INFO L93 Difference]: Finished difference Result 511 states and 781 transitions. [2022-10-15 17:41:40,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:41:40,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-10-15 17:41:40,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:40,015 INFO L225 Difference]: With dead ends: 511 [2022-10-15 17:41:40,015 INFO L226 Difference]: Without dead ends: 511 [2022-10-15 17:41:40,016 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 [2022-10-15 17:41:40,027 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 89 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 340 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 [2022-10-15 17:41:40,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 340 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:41:40,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-10-15 17:41:40,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 509. [2022-10-15 17:41:40,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 508 states have (on average 1.5354330708661417) internal successors, (780), 508 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:40,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 780 transitions. [2022-10-15 17:41:40,102 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 780 transitions. Word has length 75 [2022-10-15 17:41:40,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:40,104 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 780 transitions. [2022-10-15 17:41:40,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:40,104 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 780 transitions. [2022-10-15 17:41:40,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-15 17:41:40,110 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:40,110 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, 1, 1, 1, 1] [2022-10-15 17:41:40,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:41:40,111 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:40,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:40,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1347673334, now seen corresponding path program 1 times [2022-10-15 17:41:40,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:40,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20166300] [2022-10-15 17:41:40,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:40,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:40,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:40,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20166300] [2022-10-15 17:41:40,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20166300] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:40,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:40,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:41:40,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920016012] [2022-10-15 17:41:40,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:40,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:41:40,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:40,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:41:40,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:41:40,281 INFO L87 Difference]: Start difference. First operand 509 states and 780 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:40,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:40,326 INFO L93 Difference]: Finished difference Result 911 states and 1405 transitions. [2022-10-15 17:41:40,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:41:40,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-10-15 17:41:40,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:40,336 INFO L225 Difference]: With dead ends: 911 [2022-10-15 17:41:40,337 INFO L226 Difference]: Without dead ends: 911 [2022-10-15 17:41:40,337 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 [2022-10-15 17:41:40,342 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 84 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 336 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 [2022-10-15 17:41:40,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 336 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:41:40,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2022-10-15 17:41:40,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 909. [2022-10-15 17:41:40,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 908 states have (on average 1.5462555066079295) internal successors, (1404), 908 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:40,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1404 transitions. [2022-10-15 17:41:40,386 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1404 transitions. Word has length 76 [2022-10-15 17:41:40,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:40,386 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1404 transitions. [2022-10-15 17:41:40,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:40,387 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1404 transitions. [2022-10-15 17:41:40,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 17:41:40,394 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:40,395 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, 1, 1, 1, 1, 1] [2022-10-15 17:41:40,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:41:40,398 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:40,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:40,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1762980839, now seen corresponding path program 1 times [2022-10-15 17:41:40,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:40,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663618751] [2022-10-15 17:41:40,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:40,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:40,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:40,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:40,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663618751] [2022-10-15 17:41:40,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663618751] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:40,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:40,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:41:40,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392114723] [2022-10-15 17:41:40,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:40,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:41:40,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:40,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:41:40,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:41:40,632 INFO L87 Difference]: Start difference. First operand 909 states and 1404 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:40,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:40,688 INFO L93 Difference]: Finished difference Result 1647 states and 2541 transitions. [2022-10-15 17:41:40,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:41:40,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-10-15 17:41:40,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:40,703 INFO L225 Difference]: With dead ends: 1647 [2022-10-15 17:41:40,703 INFO L226 Difference]: Without dead ends: 1647 [2022-10-15 17:41:40,703 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 [2022-10-15 17:41:40,706 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 79 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 332 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 [2022-10-15 17:41:40,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 332 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:41:40,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-10-15 17:41:40,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1645. [2022-10-15 17:41:40,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1644 states have (on average 1.5450121654501217) internal successors, (2540), 1644 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:40,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2540 transitions. [2022-10-15 17:41:40,759 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2540 transitions. Word has length 77 [2022-10-15 17:41:40,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:40,761 INFO L495 AbstractCegarLoop]: Abstraction has 1645 states and 2540 transitions. [2022-10-15 17:41:40,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:40,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2540 transitions. [2022-10-15 17:41:40,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-15 17:41:40,771 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:40,772 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, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:40,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:41:40,773 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:40,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:40,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1296361934, now seen corresponding path program 1 times [2022-10-15 17:41:40,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:40,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166628722] [2022-10-15 17:41:40,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:40,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:41,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:41,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:41,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166628722] [2022-10-15 17:41:41,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166628722] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:41,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:41,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:41:41,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330467922] [2022-10-15 17:41:41,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:41,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:41:41,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:41,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:41:41,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:41:41,122 INFO L87 Difference]: Start difference. First operand 1645 states and 2540 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:41,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:41,712 INFO L93 Difference]: Finished difference Result 19267 states and 29623 transitions. [2022-10-15 17:41:41,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 17:41:41,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-10-15 17:41:41,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:41,857 INFO L225 Difference]: With dead ends: 19267 [2022-10-15 17:41:41,857 INFO L226 Difference]: Without dead ends: 19267 [2022-10-15 17:41:41,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:41:41,859 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1770 mSDsluCounter, 2750 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:41:41,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 2903 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:41:41,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19267 states. [2022-10-15 17:41:42,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19267 to 3245. [2022-10-15 17:41:42,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3245 states, 3244 states have (on average 1.532675709001233) internal successors, (4972), 3244 states have internal predecessors, (4972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:42,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3245 states to 3245 states and 4972 transitions. [2022-10-15 17:41:42,146 INFO L78 Accepts]: Start accepts. Automaton has 3245 states and 4972 transitions. Word has length 78 [2022-10-15 17:41:42,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:42,147 INFO L495 AbstractCegarLoop]: Abstraction has 3245 states and 4972 transitions. [2022-10-15 17:41:42,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:42,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3245 states and 4972 transitions. [2022-10-15 17:41:42,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-15 17:41:42,149 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:42,149 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:42,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:41:42,149 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:42,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:42,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1185122290, now seen corresponding path program 1 times [2022-10-15 17:41:42,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:42,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025642233] [2022-10-15 17:41:42,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:42,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:42,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:42,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:42,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025642233] [2022-10-15 17:41:42,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025642233] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:42,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:42,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:41:42,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712700981] [2022-10-15 17:41:42,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:42,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:41:42,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:42,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:41:42,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:41:42,336 INFO L87 Difference]: Start difference. First operand 3245 states and 4972 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:42,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:42,425 INFO L93 Difference]: Finished difference Result 6095 states and 9133 transitions. [2022-10-15 17:41:42,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:41:42,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-10-15 17:41:42,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:42,453 INFO L225 Difference]: With dead ends: 6095 [2022-10-15 17:41:42,454 INFO L226 Difference]: Without dead ends: 6095 [2022-10-15 17:41:42,454 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 [2022-10-15 17:41:42,455 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 69 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:41:42,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 262 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:41:42,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6095 states. [2022-10-15 17:41:42,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6095 to 6029. [2022-10-15 17:41:42,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6029 states, 6028 states have (on average 1.504313205043132) internal successors, (9068), 6028 states have internal predecessors, (9068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:42,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6029 states to 6029 states and 9068 transitions. [2022-10-15 17:41:42,629 INFO L78 Accepts]: Start accepts. Automaton has 6029 states and 9068 transitions. Word has length 80 [2022-10-15 17:41:42,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:42,630 INFO L495 AbstractCegarLoop]: Abstraction has 6029 states and 9068 transitions. [2022-10-15 17:41:42,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:42,631 INFO L276 IsEmpty]: Start isEmpty. Operand 6029 states and 9068 transitions. [2022-10-15 17:41:42,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-15 17:41:42,632 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:42,632 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:42,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:41:42,633 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:42,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:42,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1164119635, now seen corresponding path program 1 times [2022-10-15 17:41:42,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:42,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635473932] [2022-10-15 17:41:42,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:42,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:43,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:43,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635473932] [2022-10-15 17:41:43,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635473932] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:43,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:43,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:41:43,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067388937] [2022-10-15 17:41:43,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:43,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:41:43,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:43,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:41:43,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:41:43,341 INFO L87 Difference]: Start difference. First operand 6029 states and 9068 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:43,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:43,772 INFO L93 Difference]: Finished difference Result 6031 states and 9005 transitions. [2022-10-15 17:41:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:41:43,773 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-10-15 17:41:43,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:43,799 INFO L225 Difference]: With dead ends: 6031 [2022-10-15 17:41:43,799 INFO L226 Difference]: Without dead ends: 6031 [2022-10-15 17:41:43,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:41:43,801 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 516 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:41:43,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 753 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:41:43,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2022-10-15 17:41:43,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 6029. [2022-10-15 17:41:43,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6029 states, 6028 states have (on average 1.493696084936961) internal successors, (9004), 6028 states have internal predecessors, (9004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:43,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6029 states to 6029 states and 9004 transitions. [2022-10-15 17:41:43,981 INFO L78 Accepts]: Start accepts. Automaton has 6029 states and 9004 transitions. Word has length 80 [2022-10-15 17:41:43,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:43,981 INFO L495 AbstractCegarLoop]: Abstraction has 6029 states and 9004 transitions. [2022-10-15 17:41:43,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:43,982 INFO L276 IsEmpty]: Start isEmpty. Operand 6029 states and 9004 transitions. [2022-10-15 17:41:43,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-15 17:41:43,983 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:43,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:43,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:41:43,984 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:43,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:43,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1866969369, now seen corresponding path program 1 times [2022-10-15 17:41:43,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:43,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673050253] [2022-10-15 17:41:43,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:43,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:44,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:44,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673050253] [2022-10-15 17:41:44,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673050253] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:44,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:44,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:41:44,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930740447] [2022-10-15 17:41:44,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:44,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:41:44,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:44,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:41:44,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:41:44,090 INFO L87 Difference]: Start difference. First operand 6029 states and 9004 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:44,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:44,161 INFO L93 Difference]: Finished difference Result 8593 states and 12815 transitions. [2022-10-15 17:41:44,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:41:44,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-10-15 17:41:44,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:44,192 INFO L225 Difference]: With dead ends: 8593 [2022-10-15 17:41:44,192 INFO L226 Difference]: Without dead ends: 8593 [2022-10-15 17:41:44,193 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 [2022-10-15 17:41:44,194 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 101 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 356 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 [2022-10-15 17:41:44,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 356 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:41:44,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8593 states. [2022-10-15 17:41:44,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8593 to 8591. [2022-10-15 17:41:44,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8591 states, 8590 states have (on average 1.4917345750873108) internal successors, (12814), 8590 states have internal predecessors, (12814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:44,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8591 states to 8591 states and 12814 transitions. [2022-10-15 17:41:44,483 INFO L78 Accepts]: Start accepts. Automaton has 8591 states and 12814 transitions. Word has length 81 [2022-10-15 17:41:44,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:44,484 INFO L495 AbstractCegarLoop]: Abstraction has 8591 states and 12814 transitions. [2022-10-15 17:41:44,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:44,485 INFO L276 IsEmpty]: Start isEmpty. Operand 8591 states and 12814 transitions. [2022-10-15 17:41:44,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-15 17:41:44,486 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:44,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:44,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:41:44,487 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:44,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:44,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1729879629, now seen corresponding path program 1 times [2022-10-15 17:41:44,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:44,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987652820] [2022-10-15 17:41:44,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:44,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:44,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:44,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:44,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987652820] [2022-10-15 17:41:44,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987652820] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:44,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:44,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:41:44,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49485338] [2022-10-15 17:41:44,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:44,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:41:44,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:44,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:41:44,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:41:44,721 INFO L87 Difference]: Start difference. First operand 8591 states and 12814 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:44,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:44,895 INFO L93 Difference]: Finished difference Result 8591 states and 12718 transitions. [2022-10-15 17:41:44,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:41:44,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-10-15 17:41:44,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:44,924 INFO L225 Difference]: With dead ends: 8591 [2022-10-15 17:41:44,924 INFO L226 Difference]: Without dead ends: 8591 [2022-10-15 17:41:44,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:41:44,927 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 360 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:41:44,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 133 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:41:44,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8591 states. [2022-10-15 17:41:45,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8591 to 8591. [2022-10-15 17:41:45,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8591 states, 8590 states have (on average 1.480558789289872) internal successors, (12718), 8590 states have internal predecessors, (12718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:45,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8591 states to 8591 states and 12718 transitions. [2022-10-15 17:41:45,258 INFO L78 Accepts]: Start accepts. Automaton has 8591 states and 12718 transitions. Word has length 81 [2022-10-15 17:41:45,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:45,259 INFO L495 AbstractCegarLoop]: Abstraction has 8591 states and 12718 transitions. [2022-10-15 17:41:45,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:45,260 INFO L276 IsEmpty]: Start isEmpty. Operand 8591 states and 12718 transitions. [2022-10-15 17:41:45,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-15 17:41:45,261 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:45,262 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:45,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:41:45,262 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:45,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:45,263 INFO L85 PathProgramCache]: Analyzing trace with hash -864347240, now seen corresponding path program 1 times [2022-10-15 17:41:45,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:45,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064988100] [2022-10-15 17:41:45,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:45,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:45,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:45,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064988100] [2022-10-15 17:41:45,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064988100] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:45,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:45,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:41:45,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727148220] [2022-10-15 17:41:45,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:45,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:41:45,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:45,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:41:45,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:41:45,462 INFO L87 Difference]: Start difference. First operand 8591 states and 12718 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:45,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:45,613 INFO L93 Difference]: Finished difference Result 8591 states and 12622 transitions. [2022-10-15 17:41:45,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:41:45,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-10-15 17:41:45,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:45,633 INFO L225 Difference]: With dead ends: 8591 [2022-10-15 17:41:45,634 INFO L226 Difference]: Without dead ends: 8591 [2022-10-15 17:41:45,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:41:45,636 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 370 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:41:45,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 125 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:41:45,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8591 states. [2022-10-15 17:41:45,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8591 to 8591. [2022-10-15 17:41:45,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8591 states, 8590 states have (on average 1.4693830034924331) internal successors, (12622), 8590 states have internal predecessors, (12622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:45,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8591 states to 8591 states and 12622 transitions. [2022-10-15 17:41:45,836 INFO L78 Accepts]: Start accepts. Automaton has 8591 states and 12622 transitions. Word has length 81 [2022-10-15 17:41:45,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:45,837 INFO L495 AbstractCegarLoop]: Abstraction has 8591 states and 12622 transitions. [2022-10-15 17:41:45,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:45,838 INFO L276 IsEmpty]: Start isEmpty. Operand 8591 states and 12622 transitions. [2022-10-15 17:41:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-15 17:41:45,839 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:45,839 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:45,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:41:45,839 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:45,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:45,840 INFO L85 PathProgramCache]: Analyzing trace with hash -736261933, now seen corresponding path program 1 times [2022-10-15 17:41:45,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:45,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730251417] [2022-10-15 17:41:45,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:45,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:46,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:46,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:46,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730251417] [2022-10-15 17:41:46,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730251417] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:46,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:46,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:41:46,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980035475] [2022-10-15 17:41:46,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:46,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:41:46,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:46,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:41:46,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:41:46,110 INFO L87 Difference]: Start difference. First operand 8591 states and 12622 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:46,250 INFO L93 Difference]: Finished difference Result 8591 states and 12526 transitions. [2022-10-15 17:41:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:41:46,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-10-15 17:41:46,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:46,281 INFO L225 Difference]: With dead ends: 8591 [2022-10-15 17:41:46,281 INFO L226 Difference]: Without dead ends: 8591 [2022-10-15 17:41:46,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:41:46,283 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 393 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:41:46,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 109 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:41:46,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8591 states. [2022-10-15 17:41:46,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8591 to 8591. [2022-10-15 17:41:46,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8591 states, 8590 states have (on average 1.4582072176949943) internal successors, (12526), 8590 states have internal predecessors, (12526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:46,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8591 states to 8591 states and 12526 transitions. [2022-10-15 17:41:46,533 INFO L78 Accepts]: Start accepts. Automaton has 8591 states and 12526 transitions. Word has length 81 [2022-10-15 17:41:46,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:46,534 INFO L495 AbstractCegarLoop]: Abstraction has 8591 states and 12526 transitions. [2022-10-15 17:41:46,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:46,535 INFO L276 IsEmpty]: Start isEmpty. Operand 8591 states and 12526 transitions. [2022-10-15 17:41:46,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-15 17:41:46,536 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:46,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:46,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:41:46,537 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:46,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash -367990706, now seen corresponding path program 1 times [2022-10-15 17:41:46,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:46,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842738074] [2022-10-15 17:41:46,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:46,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:46,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:46,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:46,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842738074] [2022-10-15 17:41:46,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842738074] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:46,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:46,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:41:46,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970496853] [2022-10-15 17:41:46,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:46,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:41:46,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:46,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:41:46,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:41:46,867 INFO L87 Difference]: Start difference. First operand 8591 states and 12526 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:47,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:47,060 INFO L93 Difference]: Finished difference Result 8591 states and 12430 transitions. [2022-10-15 17:41:47,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:41:47,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-10-15 17:41:47,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:47,094 INFO L225 Difference]: With dead ends: 8591 [2022-10-15 17:41:47,094 INFO L226 Difference]: Without dead ends: 8591 [2022-10-15 17:41:47,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:41:47,096 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 377 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:41:47,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 117 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:41:47,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8591 states. [2022-10-15 17:41:47,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8591 to 8591. [2022-10-15 17:41:47,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8591 states, 8590 states have (on average 1.4470314318975552) internal successors, (12430), 8590 states have internal predecessors, (12430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:47,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8591 states to 8591 states and 12430 transitions. [2022-10-15 17:41:47,413 INFO L78 Accepts]: Start accepts. Automaton has 8591 states and 12430 transitions. Word has length 81 [2022-10-15 17:41:47,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:47,414 INFO L495 AbstractCegarLoop]: Abstraction has 8591 states and 12430 transitions. [2022-10-15 17:41:47,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:47,414 INFO L276 IsEmpty]: Start isEmpty. Operand 8591 states and 12430 transitions. [2022-10-15 17:41:47,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-15 17:41:47,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:47,416 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:47,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:41:47,416 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:47,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:47,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1130854413, now seen corresponding path program 1 times [2022-10-15 17:41:47,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:47,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735504419] [2022-10-15 17:41:47,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:47,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:47,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:41:47,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:47,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735504419] [2022-10-15 17:41:47,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735504419] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:47,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:47,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:41:47,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67055038] [2022-10-15 17:41:47,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:47,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:41:47,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:47,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:41:47,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:41:47,827 INFO L87 Difference]: Start difference. First operand 8591 states and 12430 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:47,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:47,967 INFO L93 Difference]: Finished difference Result 15483 states and 22180 transitions. [2022-10-15 17:41:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:41:47,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-10-15 17:41:47,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:48,021 INFO L225 Difference]: With dead ends: 15483 [2022-10-15 17:41:48,021 INFO L226 Difference]: Without dead ends: 15483 [2022-10-15 17:41:48,022 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 [2022-10-15 17:41:48,023 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 204 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:41:48,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 695 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:41:48,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15483 states. [2022-10-15 17:41:48,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15483 to 8847. [2022-10-15 17:41:48,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8847 states, 8846 states have (on average 1.4304770517748135) internal successors, (12654), 8846 states have internal predecessors, (12654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:48,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 12654 transitions. [2022-10-15 17:41:48,434 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 12654 transitions. Word has length 81 [2022-10-15 17:41:48,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:48,434 INFO L495 AbstractCegarLoop]: Abstraction has 8847 states and 12654 transitions. [2022-10-15 17:41:48,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:48,435 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 12654 transitions. [2022-10-15 17:41:48,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-15 17:41:48,444 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:48,444 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:48,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:41:48,445 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:48,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:48,446 INFO L85 PathProgramCache]: Analyzing trace with hash 905576252, now seen corresponding path program 1 times [2022-10-15 17:41:48,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:48,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841437391] [2022-10-15 17:41:48,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:48,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:48,868 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:41:48,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:48,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841437391] [2022-10-15 17:41:48,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841437391] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:48,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:48,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:41:48,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970428341] [2022-10-15 17:41:48,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:48,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:41:48,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:48,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:41:48,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:41:48,872 INFO L87 Difference]: Start difference. First operand 8847 states and 12654 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:49,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:49,587 INFO L93 Difference]: Finished difference Result 54491 states and 77876 transitions. [2022-10-15 17:41:49,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:41:49,588 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-10-15 17:41:49,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:49,814 INFO L225 Difference]: With dead ends: 54491 [2022-10-15 17:41:49,814 INFO L226 Difference]: Without dead ends: 54491 [2022-10-15 17:41:49,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:41:49,816 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1550 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:41:49,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 1131 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:41:49,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54491 states. [2022-10-15 17:41:50,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54491 to 17647. [2022-10-15 17:41:51,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17647 states, 17646 states have (on average 1.4261589028675055) internal successors, (25166), 17646 states have internal predecessors, (25166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:51,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17647 states to 17647 states and 25166 transitions. [2022-10-15 17:41:51,084 INFO L78 Accepts]: Start accepts. Automaton has 17647 states and 25166 transitions. Word has length 112 [2022-10-15 17:41:51,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:51,085 INFO L495 AbstractCegarLoop]: Abstraction has 17647 states and 25166 transitions. [2022-10-15 17:41:51,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:51,086 INFO L276 IsEmpty]: Start isEmpty. Operand 17647 states and 25166 transitions. [2022-10-15 17:41:51,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-15 17:41:51,094 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:51,094 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:51,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:41:51,095 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:51,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:51,096 INFO L85 PathProgramCache]: Analyzing trace with hash -818965810, now seen corresponding path program 1 times [2022-10-15 17:41:51,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:51,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631627385] [2022-10-15 17:41:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:51,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 17:41:51,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:51,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631627385] [2022-10-15 17:41:51,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631627385] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:51,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:51,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:41:51,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415802724] [2022-10-15 17:41:51,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:51,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:41:51,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:51,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:41:51,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:41:51,622 INFO L87 Difference]: Start difference. First operand 17647 states and 25166 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:52,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:52,210 INFO L93 Difference]: Finished difference Result 63291 states and 90388 transitions. [2022-10-15 17:41:52,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:41:52,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 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 112 [2022-10-15 17:41:52,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:52,671 INFO L225 Difference]: With dead ends: 63291 [2022-10-15 17:41:52,671 INFO L226 Difference]: Without dead ends: 63291 [2022-10-15 17:41:52,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:41:52,674 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1439 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:41:52,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 1196 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:41:52,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63291 states. [2022-10-15 17:41:54,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63291 to 30863. [2022-10-15 17:41:54,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30863 states, 30862 states have (on average 1.4209707731190462) internal successors, (43854), 30862 states have internal predecessors, (43854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:54,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30863 states to 30863 states and 43854 transitions. [2022-10-15 17:41:54,330 INFO L78 Accepts]: Start accepts. Automaton has 30863 states and 43854 transitions. Word has length 112 [2022-10-15 17:41:54,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:54,330 INFO L495 AbstractCegarLoop]: Abstraction has 30863 states and 43854 transitions. [2022-10-15 17:41:54,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:54,331 INFO L276 IsEmpty]: Start isEmpty. Operand 30863 states and 43854 transitions. [2022-10-15 17:41:54,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-15 17:41:54,341 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:54,342 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:54,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:41:54,343 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:54,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:54,344 INFO L85 PathProgramCache]: Analyzing trace with hash 334980296, now seen corresponding path program 1 times [2022-10-15 17:41:54,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:54,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276919867] [2022-10-15 17:41:54,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:54,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:55,008 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-15 17:41:55,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:55,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276919867] [2022-10-15 17:41:55,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276919867] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:55,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:55,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:41:55,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721285165] [2022-10-15 17:41:55,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:55,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:41:55,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:55,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:41:55,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:41:55,013 INFO L87 Difference]: Start difference. First operand 30863 states and 43854 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:55,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:55,649 INFO L93 Difference]: Finished difference Result 72091 states and 102900 transitions. [2022-10-15 17:41:55,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:41:55,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 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 112 [2022-10-15 17:41:55,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:56,169 INFO L225 Difference]: With dead ends: 72091 [2022-10-15 17:41:56,169 INFO L226 Difference]: Without dead ends: 72091 [2022-10-15 17:41:56,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:41:56,171 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1273 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:41:56,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 1252 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:41:56,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72091 states. [2022-10-15 17:41:57,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72091 to 39663. [2022-10-15 17:41:57,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39663 states, 39662 states have (on average 1.4211587917906308) internal successors, (56366), 39662 states have internal predecessors, (56366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:57,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39663 states to 39663 states and 56366 transitions. [2022-10-15 17:41:57,631 INFO L78 Accepts]: Start accepts. Automaton has 39663 states and 56366 transitions. Word has length 112 [2022-10-15 17:41:57,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:41:57,632 INFO L495 AbstractCegarLoop]: Abstraction has 39663 states and 56366 transitions. [2022-10-15 17:41:57,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:57,633 INFO L276 IsEmpty]: Start isEmpty. Operand 39663 states and 56366 transitions. [2022-10-15 17:41:57,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-15 17:41:57,654 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:41:57,655 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:41:57,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:41:57,655 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:41:57,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:41:57,656 INFO L85 PathProgramCache]: Analyzing trace with hash -522920382, now seen corresponding path program 1 times [2022-10-15 17:41:57,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:41:57,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092225411] [2022-10-15 17:41:57,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:41:57,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:41:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:41:58,105 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 17:41:58,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:41:58,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092225411] [2022-10-15 17:41:58,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092225411] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:41:58,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:41:58,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:41:58,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250304140] [2022-10-15 17:41:58,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:41:58,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:41:58,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:41:58,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:41:58,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:41:58,110 INFO L87 Difference]: Start difference. First operand 39663 states and 56366 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:41:59,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:41:59,096 INFO L93 Difference]: Finished difference Result 80891 states and 115412 transitions. [2022-10-15 17:41:59,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:41:59,097 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-10-15 17:41:59,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:41:59,373 INFO L225 Difference]: With dead ends: 80891 [2022-10-15 17:41:59,373 INFO L226 Difference]: Without dead ends: 80891 [2022-10-15 17:41:59,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:41:59,375 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 1268 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:41:59,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1268 Valid, 1352 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:41:59,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80891 states. [2022-10-15 17:42:00,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80891 to 48463. [2022-10-15 17:42:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48463 states, 48462 states have (on average 1.4212785275060873) internal successors, (68878), 48462 states have internal predecessors, (68878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:42:01,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48463 states to 48463 states and 68878 transitions. [2022-10-15 17:42:01,100 INFO L78 Accepts]: Start accepts. Automaton has 48463 states and 68878 transitions. Word has length 112 [2022-10-15 17:42:01,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:42:01,101 INFO L495 AbstractCegarLoop]: Abstraction has 48463 states and 68878 transitions. [2022-10-15 17:42:01,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:42:01,101 INFO L276 IsEmpty]: Start isEmpty. Operand 48463 states and 68878 transitions. [2022-10-15 17:42:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-15 17:42:01,114 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:42:01,114 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:42:01,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:42:01,114 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:42:01,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:42:01,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1413953610, now seen corresponding path program 1 times [2022-10-15 17:42:01,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:42:01,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713039444] [2022-10-15 17:42:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:42:01,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:42:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:42:01,459 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 17:42:01,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:42:01,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713039444] [2022-10-15 17:42:01,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713039444] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:42:01,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:42:01,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:42:01,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311146336] [2022-10-15 17:42:01,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:42:01,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:42:01,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:42:01,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:42:01,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:42:01,462 INFO L87 Difference]: Start difference. First operand 48463 states and 68878 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:42:02,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:42:02,499 INFO L93 Difference]: Finished difference Result 89691 states and 127924 transitions. [2022-10-15 17:42:02,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:42:02,500 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-10-15 17:42:02,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:42:02,734 INFO L225 Difference]: With dead ends: 89691 [2022-10-15 17:42:02,735 INFO L226 Difference]: Without dead ends: 89691 [2022-10-15 17:42:02,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:42:02,738 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 1374 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:42:02,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 1440 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:42:02,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89691 states. [2022-10-15 17:42:04,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89691 to 57263. [2022-10-15 17:42:04,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57263 states, 57262 states have (on average 1.4213614613530787) internal successors, (81390), 57262 states have internal predecessors, (81390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:42:04,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57263 states to 57263 states and 81390 transitions. [2022-10-15 17:42:04,843 INFO L78 Accepts]: Start accepts. Automaton has 57263 states and 81390 transitions. Word has length 112 [2022-10-15 17:42:04,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:42:04,843 INFO L495 AbstractCegarLoop]: Abstraction has 57263 states and 81390 transitions. [2022-10-15 17:42:04,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:42:04,844 INFO L276 IsEmpty]: Start isEmpty. Operand 57263 states and 81390 transitions. [2022-10-15 17:42:04,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-15 17:42:04,855 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:42:04,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:42:04,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 17:42:04,856 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:42:04,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:42:04,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1782817293, now seen corresponding path program 1 times [2022-10-15 17:42:04,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:42:04,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525521810] [2022-10-15 17:42:04,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:42:04,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:42:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:42:05,143 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:42:05,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:42:05,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525521810] [2022-10-15 17:42:05,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525521810] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:42:05,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:42:05,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:42:05,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907334427] [2022-10-15 17:42:05,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:42:05,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:42:05,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:42:05,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:42:05,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:42:05,147 INFO L87 Difference]: Start difference. First operand 57263 states and 81390 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:42:06,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:42:06,378 INFO L93 Difference]: Finished difference Result 95707 states and 136564 transitions. [2022-10-15 17:42:06,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:42:06,379 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 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 113 [2022-10-15 17:42:06,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:42:06,595 INFO L225 Difference]: With dead ends: 95707 [2022-10-15 17:42:06,595 INFO L226 Difference]: Without dead ends: 95707 [2022-10-15 17:42:06,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:42:06,597 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1369 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:42:06,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 1334 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:42:06,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95707 states. [2022-10-15 17:42:08,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95707 to 63279. [2022-10-15 17:42:08,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63279 states, 63278 states have (on average 1.4227693669205728) internal successors, (90030), 63278 states have internal predecessors, (90030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:42:09,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63279 states to 63279 states and 90030 transitions. [2022-10-15 17:42:09,061 INFO L78 Accepts]: Start accepts. Automaton has 63279 states and 90030 transitions. Word has length 113 [2022-10-15 17:42:09,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:42:09,061 INFO L495 AbstractCegarLoop]: Abstraction has 63279 states and 90030 transitions. [2022-10-15 17:42:09,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 8 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:42:09,062 INFO L276 IsEmpty]: Start isEmpty. Operand 63279 states and 90030 transitions. [2022-10-15 17:42:09,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-15 17:42:09,081 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:42:09,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:42:09,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-15 17:42:09,082 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:42:09,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:42:09,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1645382406, now seen corresponding path program 1 times [2022-10-15 17:42:09,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:42:09,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829122488] [2022-10-15 17:42:09,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:42:09,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:42:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:42:10,067 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:42:10,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:42:10,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829122488] [2022-10-15 17:42:10,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829122488] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:42:10,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901429031] [2022-10-15 17:42:10,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:42:10,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:42:10,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:42:10,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:42:10,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:42:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:42:10,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:42:10,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:42:10,901 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:42:10,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:42:11,595 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:42:11,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901429031] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:42:11,596 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:42:11,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 18 [2022-10-15 17:42:11,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741285801] [2022-10-15 17:42:11,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:42:11,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 17:42:11,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:42:11,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 17:42:11,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2022-10-15 17:42:11,599 INFO L87 Difference]: Start difference. First operand 63279 states and 90030 transitions. Second operand has 18 states, 18 states have (on average 18.22222222222222) internal successors, (328), 18 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)