/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:30:29,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:30:29,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:30:29,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 17:30:29,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:30:29,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:30:29,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:30:29,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:30:29,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:30:29,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:30:29,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:30:29,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:30:29,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:30:29,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:30:29,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:30:29,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:30:29,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:30:29,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:30:29,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:30:29,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:30:29,193 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 17:30:29,221 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:30:29,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:30:29,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:30:29,223 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:30:29,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:30:29,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:30:29,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:30:29,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:30:29,225 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:30:29,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:30:29,226 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:30:29,226 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:30:29,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:30:29,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:30:29,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:30:29,227 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:30:29,228 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:30:29,228 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:30:29,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:30:29,228 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:30:29,229 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:30:29,229 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:30:29,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:30:29,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:30:29,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:30:29,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:30:29,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:30:29,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:30:29,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:30:29,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:30:29,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:30:29,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:30:29,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:30:29,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:30:29,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:30:29,726 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:30:29,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-10-15 17:30:29,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b5a08c03/0dbe70623b3540499e46c8e872f5ae0c/FLAGf19ab671a [2022-10-15 17:30:30,621 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:30:30,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-10-15 17:30:30,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b5a08c03/0dbe70623b3540499e46c8e872f5ae0c/FLAGf19ab671a [2022-10-15 17:30:30,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b5a08c03/0dbe70623b3540499e46c8e872f5ae0c [2022-10-15 17:30:30,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:30:30,771 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:30:30,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:30:30,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:30:30,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:30:30,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:30:30" (1/1) ... [2022-10-15 17:30:30,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e3ed64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:30, skipping insertion in model container [2022-10-15 17:30:30,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:30:30" (1/1) ... [2022-10-15 17:30:30,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:30:30,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:30:31,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[14417,14430] [2022-10-15 17:30:31,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:30:31,563 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:30:31,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[14417,14430] [2022-10-15 17:30:31,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:30:31,816 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:30:31,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31 WrapperNode [2022-10-15 17:30:31,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:30:31,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:30:31,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:30:31,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:30:31,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31" (1/1) ... [2022-10-15 17:30:31,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31" (1/1) ... [2022-10-15 17:30:31,918 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1181 [2022-10-15 17:30:31,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:30:31,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:30:31,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:30:31,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:30:31,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31" (1/1) ... [2022-10-15 17:30:31,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31" (1/1) ... [2022-10-15 17:30:31,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31" (1/1) ... [2022-10-15 17:30:31,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31" (1/1) ... [2022-10-15 17:30:31,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31" (1/1) ... [2022-10-15 17:30:31,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31" (1/1) ... [2022-10-15 17:30:31,984 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31" (1/1) ... [2022-10-15 17:30:31,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31" (1/1) ... [2022-10-15 17:30:31,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:30:31,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:30:31,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:30:31,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:30:32,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31" (1/1) ... [2022-10-15 17:30:32,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:30:32,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:30:32,048 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 17:30:32,065 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 17:30:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:30:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:30:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:30:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:30:32,389 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:30:32,395 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:30:33,914 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:30:33,928 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:30:33,928 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:30:33,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:30:33 BoogieIcfgContainer [2022-10-15 17:30:33,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:30:33,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:30:33,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:30:33,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:30:33,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:30:30" (1/3) ... [2022-10-15 17:30:33,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40262732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:30:33, skipping insertion in model container [2022-10-15 17:30:33,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:30:31" (2/3) ... [2022-10-15 17:30:33,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40262732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:30:33, skipping insertion in model container [2022-10-15 17:30:33,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:30:33" (3/3) ... [2022-10-15 17:30:33,943 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2022-10-15 17:30:33,968 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:30:33,969 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:30:34,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:30:34,063 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;@262c393f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:30:34,065 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:30:34,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 313 states, 310 states have (on average 1.7838709677419355) internal successors, (553), 312 states have internal predecessors, (553), 0 states have call successors, (0), 0 states 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 17:30:34,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 17:30:34,094 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:34,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:30:34,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:34,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:34,103 INFO L85 PathProgramCache]: Analyzing trace with hash 962699199, now seen corresponding path program 1 times [2022-10-15 17:30:34,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:34,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668666169] [2022-10-15 17:30:34,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:34,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:34,556 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 17:30:34,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:34,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668666169] [2022-10-15 17:30:34,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668666169] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:34,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:34,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:30:34,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436567395] [2022-10-15 17:30:34,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:34,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:30:34,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:34,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:30:34,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:30:34,621 INFO L87 Difference]: Start difference. First operand has 313 states, 310 states have (on average 1.7838709677419355) internal successors, (553), 312 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:34,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:34,722 INFO L93 Difference]: Finished difference Result 312 states and 551 transitions. [2022-10-15 17:30:34,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:30:34,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-15 17:30:34,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:34,740 INFO L225 Difference]: With dead ends: 312 [2022-10-15 17:30:34,741 INFO L226 Difference]: Without dead ends: 309 [2022-10-15 17:30:34,743 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 17:30:34,747 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 536 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 550 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 17:30:34,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 550 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:30:34,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-10-15 17:30:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2022-10-15 17:30:34,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.4707792207792207) internal successors, (453), 308 states have internal predecessors, (453), 0 states have call successors, (0), 0 states 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 17:30:34,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 453 transitions. [2022-10-15 17:30:34,828 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 453 transitions. Word has length 16 [2022-10-15 17:30:34,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:34,829 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 453 transitions. [2022-10-15 17:30:34,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:34,829 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 453 transitions. [2022-10-15 17:30:34,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-15 17:30:34,837 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:34,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:34,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:30:34,838 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:34,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:34,839 INFO L85 PathProgramCache]: Analyzing trace with hash 811765820, now seen corresponding path program 1 times [2022-10-15 17:30:34,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:34,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615546119] [2022-10-15 17:30:34,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:34,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:35,228 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 17:30:35,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:35,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615546119] [2022-10-15 17:30:35,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615546119] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:35,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:35,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:30:35,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640442602] [2022-10-15 17:30:35,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:35,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:30:35,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:35,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:30:35,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:30:35,234 INFO L87 Difference]: Start difference. First operand 309 states and 453 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:35,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:35,349 INFO L93 Difference]: Finished difference Result 510 states and 758 transitions. [2022-10-15 17:30:35,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:30:35,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2022-10-15 17:30:35,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:35,355 INFO L225 Difference]: With dead ends: 510 [2022-10-15 17:30:35,356 INFO L226 Difference]: Without dead ends: 510 [2022-10-15 17:30:35,356 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 17:30:35,358 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 290 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:35,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 756 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:30:35,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-10-15 17:30:35,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 508. [2022-10-15 17:30:35,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 507 states have (on average 1.4930966469428009) internal successors, (757), 507 states have internal predecessors, (757), 0 states have call successors, (0), 0 states 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 17:30:35,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 757 transitions. [2022-10-15 17:30:35,400 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 757 transitions. Word has length 146 [2022-10-15 17:30:35,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:35,401 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 757 transitions. [2022-10-15 17:30:35,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:35,404 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 757 transitions. [2022-10-15 17:30:35,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-15 17:30:35,414 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:35,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:35,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:30:35,415 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:35,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:35,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1665088068, now seen corresponding path program 1 times [2022-10-15 17:30:35,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:35,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548472927] [2022-10-15 17:30:35,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:35,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:35,856 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 17:30:35,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:35,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548472927] [2022-10-15 17:30:35,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548472927] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:35,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:35,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:30:35,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121548164] [2022-10-15 17:30:35,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:35,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:30:35,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:35,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:30:35,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:30:35,860 INFO L87 Difference]: Start difference. First operand 508 states and 757 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:35,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:35,941 INFO L93 Difference]: Finished difference Result 894 states and 1342 transitions. [2022-10-15 17:30:35,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:30:35,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2022-10-15 17:30:35,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:35,948 INFO L225 Difference]: With dead ends: 894 [2022-10-15 17:30:35,949 INFO L226 Difference]: Without dead ends: 894 [2022-10-15 17:30:35,949 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 17:30:35,951 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 283 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:35,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 746 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:30:35,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-10-15 17:30:35,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 892. [2022-10-15 17:30:35,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 891 states have (on average 1.505050505050505) internal successors, (1341), 891 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states 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 17:30:35,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1341 transitions. [2022-10-15 17:30:35,990 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1341 transitions. Word has length 146 [2022-10-15 17:30:35,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:35,991 INFO L495 AbstractCegarLoop]: Abstraction has 892 states and 1341 transitions. [2022-10-15 17:30:35,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:35,991 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1341 transitions. [2022-10-15 17:30:35,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-15 17:30:35,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:35,995 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:35,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:30:35,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:35,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:35,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2001145712, now seen corresponding path program 1 times [2022-10-15 17:30:35,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:35,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569876510] [2022-10-15 17:30:35,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:35,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:36,565 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 17:30:36,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:36,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569876510] [2022-10-15 17:30:36,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569876510] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:36,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:36,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:30:36,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806939829] [2022-10-15 17:30:36,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:36,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:30:36,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:36,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:30:36,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:30:36,569 INFO L87 Difference]: Start difference. First operand 892 states and 1341 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:36,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:36,668 INFO L93 Difference]: Finished difference Result 1728 states and 2569 transitions. [2022-10-15 17:30:36,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:30:36,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2022-10-15 17:30:36,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:36,680 INFO L225 Difference]: With dead ends: 1728 [2022-10-15 17:30:36,680 INFO L226 Difference]: Without dead ends: 1728 [2022-10-15 17:30:36,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:30:36,683 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 905 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:36,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1185 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:30:36,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2022-10-15 17:30:36,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1726. [2022-10-15 17:30:36,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1725 states have (on average 1.488695652173913) internal successors, (2568), 1725 states have internal predecessors, (2568), 0 states have call successors, (0), 0 states 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 17:30:36,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2568 transitions. [2022-10-15 17:30:36,736 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2568 transitions. Word has length 146 [2022-10-15 17:30:36,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:36,736 INFO L495 AbstractCegarLoop]: Abstraction has 1726 states and 2568 transitions. [2022-10-15 17:30:36,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:36,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2568 transitions. [2022-10-15 17:30:36,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-10-15 17:30:36,741 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:36,741 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:36,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:30:36,742 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:36,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:36,743 INFO L85 PathProgramCache]: Analyzing trace with hash -153017852, now seen corresponding path program 1 times [2022-10-15 17:30:36,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:36,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506307941] [2022-10-15 17:30:36,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:36,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:36,844 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 17:30:36,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:36,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506307941] [2022-10-15 17:30:36,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506307941] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:36,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:36,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:30:36,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335670536] [2022-10-15 17:30:36,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:36,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:30:36,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:36,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:30:36,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:30:36,848 INFO L87 Difference]: Start difference. First operand 1726 states and 2568 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states 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 17:30:36,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:36,889 INFO L93 Difference]: Finished difference Result 3442 states and 5119 transitions. [2022-10-15 17:30:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:30:36,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2022-10-15 17:30:36,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:36,911 INFO L225 Difference]: With dead ends: 3442 [2022-10-15 17:30:36,911 INFO L226 Difference]: Without dead ends: 3442 [2022-10-15 17:30:36,911 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 17:30:36,913 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 442 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:36,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 963 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:30:36,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2022-10-15 17:30:36,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 1728. [2022-10-15 17:30:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1728 states, 1727 states have (on average 1.4881297046902142) internal successors, (2570), 1727 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states 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 17:30:36,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2570 transitions. [2022-10-15 17:30:36,987 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2570 transitions. Word has length 147 [2022-10-15 17:30:36,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:36,988 INFO L495 AbstractCegarLoop]: Abstraction has 1728 states and 2570 transitions. [2022-10-15 17:30:36,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states 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 17:30:36,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2570 transitions. [2022-10-15 17:30:36,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-15 17:30:36,993 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:36,993 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:36,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:30:36,994 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:36,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:36,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1214315247, now seen corresponding path program 1 times [2022-10-15 17:30:36,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:36,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829199443] [2022-10-15 17:30:36,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:36,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:37,415 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 17:30:37,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:37,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829199443] [2022-10-15 17:30:37,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829199443] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:37,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:37,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:30:37,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325340543] [2022-10-15 17:30:37,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:37,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:30:37,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:37,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:30:37,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:30:37,419 INFO L87 Difference]: Start difference. First operand 1728 states and 2570 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states 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 17:30:37,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:37,523 INFO L93 Difference]: Finished difference Result 3338 states and 4909 transitions. [2022-10-15 17:30:37,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:30:37,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 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 148 [2022-10-15 17:30:37,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:37,543 INFO L225 Difference]: With dead ends: 3338 [2022-10-15 17:30:37,543 INFO L226 Difference]: Without dead ends: 3338 [2022-10-15 17:30:37,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:30:37,545 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 889 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:37,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 1166 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:30:37,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3338 states. [2022-10-15 17:30:37,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3338 to 3336. [2022-10-15 17:30:37,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3335 states have (on average 1.471664167916042) internal successors, (4908), 3335 states have internal predecessors, (4908), 0 states have call successors, (0), 0 states 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 17:30:37,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4908 transitions. [2022-10-15 17:30:37,652 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4908 transitions. Word has length 148 [2022-10-15 17:30:37,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:37,652 INFO L495 AbstractCegarLoop]: Abstraction has 3336 states and 4908 transitions. [2022-10-15 17:30:37,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states 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 17:30:37,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4908 transitions. [2022-10-15 17:30:37,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-10-15 17:30:37,660 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:37,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:37,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:30:37,661 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:37,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:37,662 INFO L85 PathProgramCache]: Analyzing trace with hash 568493541, now seen corresponding path program 1 times [2022-10-15 17:30:37,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:37,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066613878] [2022-10-15 17:30:37,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:37,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:37,806 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 17:30:37,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:37,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066613878] [2022-10-15 17:30:37,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066613878] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:37,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:37,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:30:37,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986442139] [2022-10-15 17:30:37,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:37,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:30:37,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:37,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:30:37,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:30:37,811 INFO L87 Difference]: Start difference. First operand 3336 states and 4908 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states 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 17:30:37,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:37,879 INFO L93 Difference]: Finished difference Result 6640 states and 9763 transitions. [2022-10-15 17:30:37,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:30:37,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2022-10-15 17:30:37,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:37,923 INFO L225 Difference]: With dead ends: 6640 [2022-10-15 17:30:37,924 INFO L226 Difference]: Without dead ends: 6640 [2022-10-15 17:30:37,924 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 17:30:37,925 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 428 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:37,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 968 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:30:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6640 states. [2022-10-15 17:30:38,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6640 to 3340. [2022-10-15 17:30:38,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3340 states, 3339 states have (on average 1.47109913147649) internal successors, (4912), 3339 states have internal predecessors, (4912), 0 states have call successors, (0), 0 states 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 17:30:38,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3340 states to 3340 states and 4912 transitions. [2022-10-15 17:30:38,099 INFO L78 Accepts]: Start accepts. Automaton has 3340 states and 4912 transitions. Word has length 149 [2022-10-15 17:30:38,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:38,099 INFO L495 AbstractCegarLoop]: Abstraction has 3340 states and 4912 transitions. [2022-10-15 17:30:38,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states 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 17:30:38,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3340 states and 4912 transitions. [2022-10-15 17:30:38,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-10-15 17:30:38,106 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:38,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:38,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:30:38,107 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:38,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:38,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1727483410, now seen corresponding path program 1 times [2022-10-15 17:30:38,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:38,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240599521] [2022-10-15 17:30:38,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:38,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:38,558 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 17:30:38,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:38,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240599521] [2022-10-15 17:30:38,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240599521] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:38,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:38,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:30:38,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790799204] [2022-10-15 17:30:38,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:38,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:30:38,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:38,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:30:38,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:30:38,561 INFO L87 Difference]: Start difference. First operand 3340 states and 4912 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states 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 17:30:38,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:38,686 INFO L93 Difference]: Finished difference Result 5779 states and 8368 transitions. [2022-10-15 17:30:38,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:30:38,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2022-10-15 17:30:38,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:38,719 INFO L225 Difference]: With dead ends: 5779 [2022-10-15 17:30:38,719 INFO L226 Difference]: Without dead ends: 5779 [2022-10-15 17:30:38,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:30:38,720 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 884 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:38,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1154 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:30:38,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5779 states. [2022-10-15 17:30:38,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5779 to 5777. [2022-10-15 17:30:38,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5777 states, 5776 states have (on average 1.4485803324099722) internal successors, (8367), 5776 states have internal predecessors, (8367), 0 states have call successors, (0), 0 states 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 17:30:38,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5777 states to 5777 states and 8367 transitions. [2022-10-15 17:30:38,896 INFO L78 Accepts]: Start accepts. Automaton has 5777 states and 8367 transitions. Word has length 150 [2022-10-15 17:30:38,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:38,897 INFO L495 AbstractCegarLoop]: Abstraction has 5777 states and 8367 transitions. [2022-10-15 17:30:38,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states 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 17:30:38,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5777 states and 8367 transitions. [2022-10-15 17:30:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-10-15 17:30:38,908 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:38,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:38,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:30:38,909 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:38,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:38,910 INFO L85 PathProgramCache]: Analyzing trace with hash 982054470, now seen corresponding path program 1 times [2022-10-15 17:30:38,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:38,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685494609] [2022-10-15 17:30:38,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:38,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:39,015 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 17:30:39,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:39,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685494609] [2022-10-15 17:30:39,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685494609] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:39,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:39,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:30:39,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175826381] [2022-10-15 17:30:39,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:39,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:30:39,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:39,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:30:39,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:30:39,018 INFO L87 Difference]: Start difference. First operand 5777 states and 8367 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states 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 17:30:39,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:39,108 INFO L93 Difference]: Finished difference Result 11462 states and 16591 transitions. [2022-10-15 17:30:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:30:39,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2022-10-15 17:30:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:39,151 INFO L225 Difference]: With dead ends: 11462 [2022-10-15 17:30:39,151 INFO L226 Difference]: Without dead ends: 11462 [2022-10-15 17:30:39,151 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 17:30:39,153 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 414 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:39,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 1308 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:30:39,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11462 states. [2022-10-15 17:30:39,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11462 to 5785. [2022-10-15 17:30:39,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5785 states, 5784 states have (on average 1.4479598893499308) internal successors, (8375), 5784 states have internal predecessors, (8375), 0 states have call successors, (0), 0 states 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 17:30:39,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 8375 transitions. [2022-10-15 17:30:39,441 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 8375 transitions. Word has length 151 [2022-10-15 17:30:39,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:39,441 INFO L495 AbstractCegarLoop]: Abstraction has 5785 states and 8375 transitions. [2022-10-15 17:30:39,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states 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 17:30:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 8375 transitions. [2022-10-15 17:30:39,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-10-15 17:30:39,452 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:39,452 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:39,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:30:39,453 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:39,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:39,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1043523012, now seen corresponding path program 1 times [2022-10-15 17:30:39,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:39,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342811747] [2022-10-15 17:30:39,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:39,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:39,914 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 17:30:39,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:39,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342811747] [2022-10-15 17:30:39,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342811747] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:39,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:39,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:30:39,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037818607] [2022-10-15 17:30:39,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:39,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:30:39,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:39,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:30:39,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:30:39,917 INFO L87 Difference]: Start difference. First operand 5785 states and 8375 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 0 states have call successors, (0), 0 states 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 17:30:40,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:40,058 INFO L93 Difference]: Finished difference Result 10065 states and 14324 transitions. [2022-10-15 17:30:40,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:30:40,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2022-10-15 17:30:40,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:40,082 INFO L225 Difference]: With dead ends: 10065 [2022-10-15 17:30:40,083 INFO L226 Difference]: Without dead ends: 10065 [2022-10-15 17:30:40,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:30:40,084 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 1326 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:40,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 1162 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:30:40,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10065 states. [2022-10-15 17:30:40,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10065 to 10063. [2022-10-15 17:30:40,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10063 states, 10062 states have (on average 1.4234744583581793) internal successors, (14323), 10062 states have internal predecessors, (14323), 0 states have call successors, (0), 0 states 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 17:30:40,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10063 states to 10063 states and 14323 transitions. [2022-10-15 17:30:40,304 INFO L78 Accepts]: Start accepts. Automaton has 10063 states and 14323 transitions. Word has length 152 [2022-10-15 17:30:40,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:40,305 INFO L495 AbstractCegarLoop]: Abstraction has 10063 states and 14323 transitions. [2022-10-15 17:30:40,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 0 states have call successors, (0), 0 states 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 17:30:40,305 INFO L276 IsEmpty]: Start isEmpty. Operand 10063 states and 14323 transitions. [2022-10-15 17:30:40,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-10-15 17:30:40,322 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:40,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:40,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:30:40,323 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:40,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:40,324 INFO L85 PathProgramCache]: Analyzing trace with hash -333116525, now seen corresponding path program 1 times [2022-10-15 17:30:40,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:40,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63775842] [2022-10-15 17:30:40,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:40,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:40,803 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 17:30:40,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:40,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63775842] [2022-10-15 17:30:40,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63775842] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:40,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:40,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:30:40,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616429288] [2022-10-15 17:30:40,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:40,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:30:40,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:40,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:30:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:30:40,807 INFO L87 Difference]: Start difference. First operand 10063 states and 14323 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states 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 17:30:40,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:40,880 INFO L93 Difference]: Finished difference Result 8837 states and 12501 transitions. [2022-10-15 17:30:40,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:30:40,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2022-10-15 17:30:40,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:40,899 INFO L225 Difference]: With dead ends: 8837 [2022-10-15 17:30:40,900 INFO L226 Difference]: Without dead ends: 8561 [2022-10-15 17:30:40,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:30:40,901 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 65 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:40,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1390 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:30:40,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8561 states. [2022-10-15 17:30:41,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8561 to 8561. [2022-10-15 17:30:41,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8561 states, 8560 states have (on average 1.424766355140187) internal successors, (12196), 8560 states have internal predecessors, (12196), 0 states have call successors, (0), 0 states 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 17:30:41,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8561 states to 8561 states and 12196 transitions. [2022-10-15 17:30:41,112 INFO L78 Accepts]: Start accepts. Automaton has 8561 states and 12196 transitions. Word has length 152 [2022-10-15 17:30:41,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:41,113 INFO L495 AbstractCegarLoop]: Abstraction has 8561 states and 12196 transitions. [2022-10-15 17:30:41,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states 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 17:30:41,113 INFO L276 IsEmpty]: Start isEmpty. Operand 8561 states and 12196 transitions. [2022-10-15 17:30:41,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-15 17:30:41,126 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:41,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:41,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:30:41,127 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:41,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:41,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1970649822, now seen corresponding path program 1 times [2022-10-15 17:30:41,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:41,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306071814] [2022-10-15 17:30:41,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:41,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:41,296 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 17:30:41,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:41,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306071814] [2022-10-15 17:30:41,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306071814] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:41,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:41,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:30:41,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689666610] [2022-10-15 17:30:41,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:41,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:30:41,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:41,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:30:41,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:30:41,299 INFO L87 Difference]: Start difference. First operand 8561 states and 12196 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:41,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:41,570 INFO L93 Difference]: Finished difference Result 15939 states and 22717 transitions. [2022-10-15 17:30:41,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:30:41,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2022-10-15 17:30:41,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:41,611 INFO L225 Difference]: With dead ends: 15939 [2022-10-15 17:30:41,611 INFO L226 Difference]: Without dead ends: 15939 [2022-10-15 17:30:41,611 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 17:30:41,612 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 306 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:41,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 778 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:30:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15939 states. [2022-10-15 17:30:41,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15939 to 15937. [2022-10-15 17:30:41,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15937 states, 15936 states have (on average 1.4254518072289157) internal successors, (22716), 15936 states have internal predecessors, (22716), 0 states have call successors, (0), 0 states 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 17:30:42,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15937 states to 15937 states and 22716 transitions. [2022-10-15 17:30:42,051 INFO L78 Accepts]: Start accepts. Automaton has 15937 states and 22716 transitions. Word has length 158 [2022-10-15 17:30:42,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:42,051 INFO L495 AbstractCegarLoop]: Abstraction has 15937 states and 22716 transitions. [2022-10-15 17:30:42,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:42,052 INFO L276 IsEmpty]: Start isEmpty. Operand 15937 states and 22716 transitions. [2022-10-15 17:30:42,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-15 17:30:42,072 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:42,073 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:42,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:30:42,073 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:42,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:42,074 INFO L85 PathProgramCache]: Analyzing trace with hash 242334909, now seen corresponding path program 1 times [2022-10-15 17:30:42,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:42,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455266934] [2022-10-15 17:30:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:42,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:43,535 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 17:30:43,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:43,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455266934] [2022-10-15 17:30:43,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455266934] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:43,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:43,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-10-15 17:30:43,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518842809] [2022-10-15 17:30:43,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:43,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-15 17:30:43,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:43,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-15 17:30:43,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:30:43,539 INFO L87 Difference]: Start difference. First operand 15937 states and 22716 transitions. Second operand has 16 states, 16 states have (on average 9.875) internal successors, (158), 16 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:45,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:45,837 INFO L93 Difference]: Finished difference Result 33279 states and 48912 transitions. [2022-10-15 17:30:45,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-15 17:30:45,838 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.875) internal successors, (158), 16 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2022-10-15 17:30:45,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:45,914 INFO L225 Difference]: With dead ends: 33279 [2022-10-15 17:30:45,914 INFO L226 Difference]: Without dead ends: 33279 [2022-10-15 17:30:45,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=330, Invalid=930, Unknown=0, NotChecked=0, Total=1260 [2022-10-15 17:30:45,916 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 5494 mSDsluCounter, 5696 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5494 SdHoareTripleChecker+Valid, 6302 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:45,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5494 Valid, 6302 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-10-15 17:30:45,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33279 states. [2022-10-15 17:30:46,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33279 to 17685. [2022-10-15 17:30:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17685 states, 17684 states have (on average 1.4060167382945035) internal successors, (24864), 17684 states have internal predecessors, (24864), 0 states have call successors, (0), 0 states 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 17:30:46,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17685 states to 17685 states and 24864 transitions. [2022-10-15 17:30:46,637 INFO L78 Accepts]: Start accepts. Automaton has 17685 states and 24864 transitions. Word has length 158 [2022-10-15 17:30:46,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:46,637 INFO L495 AbstractCegarLoop]: Abstraction has 17685 states and 24864 transitions. [2022-10-15 17:30:46,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.875) internal successors, (158), 16 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:46,638 INFO L276 IsEmpty]: Start isEmpty. Operand 17685 states and 24864 transitions. [2022-10-15 17:30:46,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-15 17:30:46,662 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:46,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:46,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:30:46,663 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:46,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:46,663 INFO L85 PathProgramCache]: Analyzing trace with hash 331313387, now seen corresponding path program 1 times [2022-10-15 17:30:46,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:46,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840202512] [2022-10-15 17:30:46,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:46,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:47,207 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 17:30:47,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:47,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840202512] [2022-10-15 17:30:47,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840202512] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:47,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:47,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:30:47,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374478241] [2022-10-15 17:30:47,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:47,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:30:47,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:47,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:30:47,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:30:47,212 INFO L87 Difference]: Start difference. First operand 17685 states and 24864 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:47,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:47,390 INFO L93 Difference]: Finished difference Result 29375 states and 40659 transitions. [2022-10-15 17:30:47,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:30:47,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2022-10-15 17:30:47,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:47,462 INFO L225 Difference]: With dead ends: 29375 [2022-10-15 17:30:47,462 INFO L226 Difference]: Without dead ends: 29375 [2022-10-15 17:30:47,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:30:47,464 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 890 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:47,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 1162 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:30:47,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29375 states. [2022-10-15 17:30:48,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29375 to 29373. [2022-10-15 17:30:48,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29373 states, 29372 states have (on average 1.3842434972082256) internal successors, (40658), 29372 states have internal predecessors, (40658), 0 states have call successors, (0), 0 states 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 17:30:48,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29373 states to 29373 states and 40658 transitions. [2022-10-15 17:30:48,368 INFO L78 Accepts]: Start accepts. Automaton has 29373 states and 40658 transitions. Word has length 158 [2022-10-15 17:30:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:48,368 INFO L495 AbstractCegarLoop]: Abstraction has 29373 states and 40658 transitions. [2022-10-15 17:30:48,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:48,369 INFO L276 IsEmpty]: Start isEmpty. Operand 29373 states and 40658 transitions. [2022-10-15 17:30:48,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-10-15 17:30:48,408 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:48,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:48,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:30:48,409 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:48,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:48,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1081823353, now seen corresponding path program 1 times [2022-10-15 17:30:48,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:48,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178733494] [2022-10-15 17:30:48,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:48,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:48,906 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 17:30:48,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:48,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178733494] [2022-10-15 17:30:48,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178733494] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:48,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:48,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:30:48,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366089164] [2022-10-15 17:30:48,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:48,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:30:48,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:48,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:30:48,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:30:48,909 INFO L87 Difference]: Start difference. First operand 29373 states and 40658 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:49,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:49,027 INFO L93 Difference]: Finished difference Result 29579 states and 40875 transitions. [2022-10-15 17:30:49,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:30:49,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2022-10-15 17:30:49,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:49,236 INFO L225 Difference]: With dead ends: 29579 [2022-10-15 17:30:49,237 INFO L226 Difference]: Without dead ends: 29373 [2022-10-15 17:30:49,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:30:49,238 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 53 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:49,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1375 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:30:49,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29373 states. [2022-10-15 17:30:49,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29373 to 29373. [2022-10-15 17:30:49,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29373 states, 29372 states have (on average 1.3842094511779925) internal successors, (40657), 29372 states have internal predecessors, (40657), 0 states have call successors, (0), 0 states 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 17:30:50,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29373 states to 29373 states and 40657 transitions. [2022-10-15 17:30:50,066 INFO L78 Accepts]: Start accepts. Automaton has 29373 states and 40657 transitions. Word has length 160 [2022-10-15 17:30:50,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:50,066 INFO L495 AbstractCegarLoop]: Abstraction has 29373 states and 40657 transitions. [2022-10-15 17:30:50,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:50,067 INFO L276 IsEmpty]: Start isEmpty. Operand 29373 states and 40657 transitions. [2022-10-15 17:30:50,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-10-15 17:30:50,098 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:50,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:50,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:30:50,099 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:50,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:50,099 INFO L85 PathProgramCache]: Analyzing trace with hash -164919766, now seen corresponding path program 1 times [2022-10-15 17:30:50,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:50,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136603105] [2022-10-15 17:30:50,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:50,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:50,341 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 17:30:50,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:50,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136603105] [2022-10-15 17:30:50,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136603105] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:50,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:50,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:30:50,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343731047] [2022-10-15 17:30:50,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:50,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:30:50,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:50,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:30:50,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:30:50,346 INFO L87 Difference]: Start difference. First operand 29373 states and 40657 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:50,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:50,508 INFO L93 Difference]: Finished difference Result 45451 states and 61908 transitions. [2022-10-15 17:30:50,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:30:50,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2022-10-15 17:30:50,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:50,604 INFO L225 Difference]: With dead ends: 45451 [2022-10-15 17:30:50,604 INFO L226 Difference]: Without dead ends: 45451 [2022-10-15 17:30:50,605 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 17:30:50,606 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 374 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:50,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1219 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:30:50,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45451 states. [2022-10-15 17:30:51,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45451 to 45449. [2022-10-15 17:30:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45449 states, 45448 states have (on average 1.3621501496215456) internal successors, (61907), 45448 states have internal predecessors, (61907), 0 states have call successors, (0), 0 states 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 17:30:52,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45449 states to 45449 states and 61907 transitions. [2022-10-15 17:30:52,109 INFO L78 Accepts]: Start accepts. Automaton has 45449 states and 61907 transitions. Word has length 160 [2022-10-15 17:30:52,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:52,110 INFO L495 AbstractCegarLoop]: Abstraction has 45449 states and 61907 transitions. [2022-10-15 17:30:52,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:52,110 INFO L276 IsEmpty]: Start isEmpty. Operand 45449 states and 61907 transitions. [2022-10-15 17:30:52,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-15 17:30:52,151 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:52,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:52,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:30:52,154 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:52,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:52,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1341734995, now seen corresponding path program 1 times [2022-10-15 17:30:52,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:52,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983847192] [2022-10-15 17:30:52,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:52,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:52,837 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 17:30:52,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:52,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983847192] [2022-10-15 17:30:52,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983847192] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:52,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:52,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:30:52,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537618425] [2022-10-15 17:30:52,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:52,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:30:52,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:52,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:30:52,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:30:52,840 INFO L87 Difference]: Start difference. First operand 45449 states and 61907 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:30:53,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:53,360 INFO L93 Difference]: Finished difference Result 84409 states and 115374 transitions. [2022-10-15 17:30:53,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:30:53,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2022-10-15 17:30:53,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:53,603 INFO L225 Difference]: With dead ends: 84409 [2022-10-15 17:30:53,603 INFO L226 Difference]: Without dead ends: 84409 [2022-10-15 17:30:53,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:30:53,605 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 799 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:53,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 842 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:30:53,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84409 states. [2022-10-15 17:30:55,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84409 to 84407. [2022-10-15 17:30:55,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84407 states, 84406 states have (on average 1.3668815013150724) internal successors, (115373), 84406 states have internal predecessors, (115373), 0 states have call successors, (0), 0 states 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 17:30:55,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84407 states to 84407 states and 115373 transitions. [2022-10-15 17:30:55,728 INFO L78 Accepts]: Start accepts. Automaton has 84407 states and 115373 transitions. Word has length 166 [2022-10-15 17:30:55,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:55,728 INFO L495 AbstractCegarLoop]: Abstraction has 84407 states and 115373 transitions. [2022-10-15 17:30:55,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:30:55,729 INFO L276 IsEmpty]: Start isEmpty. Operand 84407 states and 115373 transitions. [2022-10-15 17:30:55,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-15 17:30:55,807 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:55,807 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:55,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:30:55,808 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:55,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:55,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1507391155, now seen corresponding path program 1 times [2022-10-15 17:30:55,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:55,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437788280] [2022-10-15 17:30:55,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:55,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:56,470 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 17:30:56,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:56,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437788280] [2022-10-15 17:30:56,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437788280] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:56,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:56,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:30:56,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004485079] [2022-10-15 17:30:56,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:56,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:30:56,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:56,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:30:56,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:30:56,473 INFO L87 Difference]: Start difference. First operand 84407 states and 115373 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:30:56,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:56,749 INFO L93 Difference]: Finished difference Result 72402 states and 98964 transitions. [2022-10-15 17:30:56,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:30:56,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2022-10-15 17:30:56,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:56,872 INFO L225 Difference]: With dead ends: 72402 [2022-10-15 17:30:56,872 INFO L226 Difference]: Without dead ends: 71991 [2022-10-15 17:30:56,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:30:56,874 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 43 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:56,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 1362 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:30:56,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71991 states. [2022-10-15 17:30:58,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71991 to 71991. [2022-10-15 17:30:58,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71991 states, 71990 states have (on average 1.3687873315738297) internal successors, (98539), 71990 states have internal predecessors, (98539), 0 states have call successors, (0), 0 states 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 17:30:58,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71991 states to 71991 states and 98539 transitions. [2022-10-15 17:30:58,536 INFO L78 Accepts]: Start accepts. Automaton has 71991 states and 98539 transitions. Word has length 166 [2022-10-15 17:30:58,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:58,537 INFO L495 AbstractCegarLoop]: Abstraction has 71991 states and 98539 transitions. [2022-10-15 17:30:58,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:30:58,537 INFO L276 IsEmpty]: Start isEmpty. Operand 71991 states and 98539 transitions. [2022-10-15 17:30:58,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-10-15 17:30:58,596 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:58,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:58,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:30:58,597 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:58,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash 249541113, now seen corresponding path program 1 times [2022-10-15 17:30:58,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:58,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341696851] [2022-10-15 17:30:58,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:58,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:58,733 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 17:30:58,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:58,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341696851] [2022-10-15 17:30:58,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341696851] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:58,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:58,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:30:58,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694904397] [2022-10-15 17:30:58,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:58,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:30:58,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:58,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:30:58,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:30:58,737 INFO L87 Difference]: Start difference. First operand 71991 states and 98539 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 17:30:59,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:59,633 INFO L93 Difference]: Finished difference Result 127866 states and 174588 transitions. [2022-10-15 17:30:59,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:30:59,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2022-10-15 17:30:59,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:59,854 INFO L225 Difference]: With dead ends: 127866 [2022-10-15 17:30:59,855 INFO L226 Difference]: Without dead ends: 127866 [2022-10-15 17:30:59,855 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 17:30:59,856 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 279 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:59,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 764 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:30:59,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127866 states. [2022-10-15 17:31:02,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127866 to 127864. [2022-10-15 17:31:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127864 states, 127863 states have (on average 1.3654223661262446) internal successors, (174587), 127863 states have internal predecessors, (174587), 0 states have call successors, (0), 0 states 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 17:31:02,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127864 states to 127864 states and 174587 transitions. [2022-10-15 17:31:03,001 INFO L78 Accepts]: Start accepts. Automaton has 127864 states and 174587 transitions. Word has length 172 [2022-10-15 17:31:03,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:31:03,002 INFO L495 AbstractCegarLoop]: Abstraction has 127864 states and 174587 transitions. [2022-10-15 17:31:03,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 17:31:03,002 INFO L276 IsEmpty]: Start isEmpty. Operand 127864 states and 174587 transitions. [2022-10-15 17:31:03,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-10-15 17:31:03,105 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:31:03,105 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:03,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:31:03,106 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:31:03,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:31:03,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1999397218, now seen corresponding path program 1 times [2022-10-15 17:31:03,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:31:03,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647781975] [2022-10-15 17:31:03,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:31:03,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:31:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:31:03,531 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 17:31:03,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:31:03,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647781975] [2022-10-15 17:31:03,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647781975] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:31:03,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:31:03,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:31:03,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214264838] [2022-10-15 17:31:03,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:31:03,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:31:03,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:31:03,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:31:03,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:31:03,534 INFO L87 Difference]: Start difference. First operand 127864 states and 174587 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 17:31:04,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:31:04,419 INFO L93 Difference]: Finished difference Result 119880 states and 163471 transitions. [2022-10-15 17:31:04,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:31:04,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2022-10-15 17:31:04,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:31:04,651 INFO L225 Difference]: With dead ends: 119880 [2022-10-15 17:31:04,652 INFO L226 Difference]: Without dead ends: 119880 [2022-10-15 17:31:04,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:31:04,654 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 1149 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:31:04,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 854 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:31:04,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119880 states. [2022-10-15 17:31:06,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119880 to 119638. [2022-10-15 17:31:06,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119638 states, 119637 states have (on average 1.3639760274831365) internal successors, (163182), 119637 states have internal predecessors, (163182), 0 states have call successors, (0), 0 states 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 17:31:07,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119638 states to 119638 states and 163182 transitions. [2022-10-15 17:31:07,093 INFO L78 Accepts]: Start accepts. Automaton has 119638 states and 163182 transitions. Word has length 172 [2022-10-15 17:31:07,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:31:07,093 INFO L495 AbstractCegarLoop]: Abstraction has 119638 states and 163182 transitions. [2022-10-15 17:31:07,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states 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 17:31:07,094 INFO L276 IsEmpty]: Start isEmpty. Operand 119638 states and 163182 transitions. [2022-10-15 17:31:07,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-10-15 17:31:07,204 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:31:07,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:07,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 17:31:07,205 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:31:07,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:31:07,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1736787942, now seen corresponding path program 1 times [2022-10-15 17:31:07,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:31:07,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091652227] [2022-10-15 17:31:07,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:31:07,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:31:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:31:08,113 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 17:31:08,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:31:08,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091652227] [2022-10-15 17:31:08,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091652227] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:31:08,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:31:08,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:31:08,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461686328] [2022-10-15 17:31:08,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:31:08,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:31:08,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:31:08,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:31:08,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:31:08,119 INFO L87 Difference]: Start difference. First operand 119638 states and 163182 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states 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 17:31:08,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:31:08,601 INFO L93 Difference]: Finished difference Result 103227 states and 140732 transitions. [2022-10-15 17:31:08,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:31:08,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2022-10-15 17:31:08,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:31:08,776 INFO L225 Difference]: With dead ends: 103227 [2022-10-15 17:31:08,776 INFO L226 Difference]: Without dead ends: 103125 [2022-10-15 17:31:08,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:31:08,779 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 21 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:31:08,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1336 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:31:08,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103125 states. [2022-10-15 17:31:10,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103125 to 103125. [2022-10-15 17:31:10,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103125 states, 103124 states have (on average 1.3636980722237306) internal successors, (140630), 103124 states have internal predecessors, (140630), 0 states have call successors, (0), 0 states 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 17:31:11,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103125 states to 103125 states and 140630 transitions. [2022-10-15 17:31:11,123 INFO L78 Accepts]: Start accepts. Automaton has 103125 states and 140630 transitions. Word has length 174 [2022-10-15 17:31:11,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:31:11,123 INFO L495 AbstractCegarLoop]: Abstraction has 103125 states and 140630 transitions. [2022-10-15 17:31:11,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states 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 17:31:11,129 INFO L276 IsEmpty]: Start isEmpty. Operand 103125 states and 140630 transitions. [2022-10-15 17:31:11,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-15 17:31:11,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:31:11,216 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:11,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-15 17:31:11,216 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:31:11,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:31:11,217 INFO L85 PathProgramCache]: Analyzing trace with hash -130597814, now seen corresponding path program 1 times [2022-10-15 17:31:11,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:31:11,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953996414] [2022-10-15 17:31:11,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:31:11,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:31:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:31:11,344 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 17:31:11,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:31:11,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953996414] [2022-10-15 17:31:11,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953996414] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:31:11,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:31:11,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:31:11,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288703105] [2022-10-15 17:31:11,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:31:11,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:31:11,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:31:11,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:31:11,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:31:11,347 INFO L87 Difference]: Start difference. First operand 103125 states and 140630 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 17:31:11,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:31:11,887 INFO L93 Difference]: Finished difference Result 129183 states and 179919 transitions. [2022-10-15 17:31:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:31:11,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-10-15 17:31:11,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:31:12,107 INFO L225 Difference]: With dead ends: 129183 [2022-10-15 17:31:12,107 INFO L226 Difference]: Without dead ends: 129183 [2022-10-15 17:31:12,108 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 17:31:12,108 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 267 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:31:12,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 892 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:31:12,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129183 states. [2022-10-15 17:31:14,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129183 to 129181. [2022-10-15 17:31:14,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129181 states, 129180 states have (on average 1.392769778603499) internal successors, (179918), 129180 states have internal predecessors, (179918), 0 states have call successors, (0), 0 states 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 17:31:14,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129181 states to 129181 states and 179918 transitions. [2022-10-15 17:31:14,488 INFO L78 Accepts]: Start accepts. Automaton has 129181 states and 179918 transitions. Word has length 176 [2022-10-15 17:31:14,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:31:14,489 INFO L495 AbstractCegarLoop]: Abstraction has 129181 states and 179918 transitions. [2022-10-15 17:31:14,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 17:31:14,489 INFO L276 IsEmpty]: Start isEmpty. Operand 129181 states and 179918 transitions.