/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:29:21,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:29:21,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:29:21,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:29:21,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:29:21,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:29:21,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:29:22,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:29:22,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:29:22,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:29:22,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:29:22,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:29:22,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:29:22,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:29:22,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:29:22,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:29:22,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:29:22,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:29:22,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:29:22,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:29:22,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:29:22,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:29:22,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:29:22,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:29:22,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:29:22,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:29:22,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:29:22,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:29:22,088 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 17:29:22,145 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:29:22,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:29:22,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:29:22,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:29:22,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:29:22,149 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:29:22,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:29:22,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:29:22,153 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:29:22,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:29:22,155 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:29:22,155 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:29:22,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:29:22,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:29:22,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:29:22,156 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:29:22,156 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:29:22,156 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:29:22,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:29:22,157 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:29:22,157 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:29:22,157 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:29:22,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:29:22,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:29:22,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:29:22,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:29:22,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:29:22,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:29:22,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:29:22,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:29:22,159 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:29:22,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:29:22,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:29:22,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:29:22,657 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:29:22,661 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:29:22,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:29:22,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6b19bfb9/022e4b90bad944e483c03ed04754f0c1/FLAG5c1bb85fb [2022-10-15 17:29:23,463 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:29:23,464 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:29:23,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6b19bfb9/022e4b90bad944e483c03ed04754f0c1/FLAG5c1bb85fb [2022-10-15 17:29:23,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6b19bfb9/022e4b90bad944e483c03ed04754f0c1 [2022-10-15 17:29:23,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:29:23,777 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:29:23,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:29:23,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:29:23,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:29:23,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:29:23" (1/1) ... [2022-10-15 17:29:23,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b2febc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:23, skipping insertion in model container [2022-10-15 17:29:23,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:29:23" (1/1) ... [2022-10-15 17:29:23,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:29:23,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:29:24,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7349,7362] [2022-10-15 17:29:24,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:29:24,295 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:29:24,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7349,7362] [2022-10-15 17:29:24,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:29:24,456 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:29:24,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24 WrapperNode [2022-10-15 17:29:24,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:29:24,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:29:24,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:29:24,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:29:24,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24" (1/1) ... [2022-10-15 17:29:24,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24" (1/1) ... [2022-10-15 17:29:24,562 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 590 [2022-10-15 17:29:24,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:29:24,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:29:24,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:29:24,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:29:24,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24" (1/1) ... [2022-10-15 17:29:24,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24" (1/1) ... [2022-10-15 17:29:24,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24" (1/1) ... [2022-10-15 17:29:24,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24" (1/1) ... [2022-10-15 17:29:24,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24" (1/1) ... [2022-10-15 17:29:24,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24" (1/1) ... [2022-10-15 17:29:24,603 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24" (1/1) ... [2022-10-15 17:29:24,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24" (1/1) ... [2022-10-15 17:29:24,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:29:24,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:29:24,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:29:24,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:29:24,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24" (1/1) ... [2022-10-15 17:29:24,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:29:24,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:29:24,674 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 17:29:24,698 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 17:29:24,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:29:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:29:24,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:29:24,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:29:25,062 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:29:25,084 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:29:25,887 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:29:25,900 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:29:25,901 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:29:25,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:29:25 BoogieIcfgContainer [2022-10-15 17:29:25,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:29:25,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:29:25,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:29:25,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:29:25,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:29:23" (1/3) ... [2022-10-15 17:29:25,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e22e62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:29:25, skipping insertion in model container [2022-10-15 17:29:25,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:29:24" (2/3) ... [2022-10-15 17:29:25,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e22e62b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:29:25, skipping insertion in model container [2022-10-15 17:29:25,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:29:25" (3/3) ... [2022-10-15 17:29:25,919 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:29:25,948 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:29:25,948 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:29:26,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:29:26,034 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;@1e8fb177, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:29:26,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:29:26,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 138 states have (on average 1.7681159420289856) internal successors, (244), 140 states have internal predecessors, (244), 0 states have call successors, (0), 0 states 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 17:29:26,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 17:29:26,052 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:26,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:26,053 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:26,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash 962674463, now seen corresponding path program 1 times [2022-10-15 17:29:26,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:26,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52316849] [2022-10-15 17:29:26,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:26,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:26,593 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 17:29:26,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:26,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52316849] [2022-10-15 17:29:26,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52316849] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:26,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:26,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:29:26,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821998604] [2022-10-15 17:29:26,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:26,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:29:26,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:26,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:29:26,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:29:26,658 INFO L87 Difference]: Start difference. First operand has 141 states, 138 states have (on average 1.7681159420289856) internal successors, (244), 140 states have internal predecessors, (244), 0 states have call successors, (0), 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 17:29:26,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:26,713 INFO L93 Difference]: Finished difference Result 140 states and 242 transitions. [2022-10-15 17:29:26,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:29:26,717 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 17:29:26,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:26,737 INFO L225 Difference]: With dead ends: 140 [2022-10-15 17:29:26,737 INFO L226 Difference]: Without dead ends: 137 [2022-10-15 17:29:26,740 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 17:29:26,749 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 227 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 241 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 17:29:26,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 241 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:29:26,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-10-15 17:29:26,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-10-15 17:29:26,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 1.5588235294117647) internal successors, (212), 136 states have internal predecessors, (212), 0 states have call successors, (0), 0 states 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 17:29:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 212 transitions. [2022-10-15 17:29:26,841 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 212 transitions. Word has length 16 [2022-10-15 17:29:26,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:26,842 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 212 transitions. [2022-10-15 17:29:26,842 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 17:29:26,843 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 212 transitions. [2022-10-15 17:29:26,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-15 17:29:26,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:26,846 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] [2022-10-15 17:29:26,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:29:26,847 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:26,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:26,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1890044597, now seen corresponding path program 1 times [2022-10-15 17:29:26,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:26,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489605550] [2022-10-15 17:29:26,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:26,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:27,209 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 17:29:27,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:27,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489605550] [2022-10-15 17:29:27,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489605550] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:27,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:27,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:29:27,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967694225] [2022-10-15 17:29:27,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:27,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:29:27,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:27,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:29:27,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:29:27,216 INFO L87 Difference]: Start difference. First operand 137 states and 212 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 17:29:27,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:27,327 INFO L93 Difference]: Finished difference Result 211 states and 329 transitions. [2022-10-15 17:29:27,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:29:27,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-10-15 17:29:27,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:27,335 INFO L225 Difference]: With dead ends: 211 [2022-10-15 17:29:27,335 INFO L226 Difference]: Without dead ends: 211 [2022-10-15 17:29:27,335 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 17:29:27,338 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 115 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:27,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 378 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:29:27,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-10-15 17:29:27,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2022-10-15 17:29:27,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.5797101449275361) internal successors, (327), 207 states have internal predecessors, (327), 0 states have call successors, (0), 0 states 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 17:29:27,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 327 transitions. [2022-10-15 17:29:27,405 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 327 transitions. Word has length 56 [2022-10-15 17:29:27,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:27,406 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 327 transitions. [2022-10-15 17:29:27,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 17:29:27,407 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 327 transitions. [2022-10-15 17:29:27,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 17:29:27,410 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:27,411 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] [2022-10-15 17:29:27,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:29:27,411 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:27,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:27,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1610685192, now seen corresponding path program 1 times [2022-10-15 17:29:27,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:27,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142388795] [2022-10-15 17:29:27,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:27,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:27,633 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 17:29:27,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:27,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142388795] [2022-10-15 17:29:27,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142388795] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:27,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:27,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:29:27,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110624430] [2022-10-15 17:29:27,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:27,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:29:27,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:27,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:29:27,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:29:27,644 INFO L87 Difference]: Start difference. First operand 208 states and 327 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 17:29:27,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:27,712 INFO L93 Difference]: Finished difference Result 348 states and 552 transitions. [2022-10-15 17:29:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:29:27,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-10-15 17:29:27,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:27,718 INFO L225 Difference]: With dead ends: 348 [2022-10-15 17:29:27,718 INFO L226 Difference]: Without dead ends: 348 [2022-10-15 17:29:27,719 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 17:29:27,726 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 118 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:27,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 391 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:29:27,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-10-15 17:29:27,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 344. [2022-10-15 17:29:27,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 343 states have (on average 1.6005830903790088) internal successors, (549), 343 states have internal predecessors, (549), 0 states have call successors, (0), 0 states 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 17:29:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 549 transitions. [2022-10-15 17:29:27,781 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 549 transitions. Word has length 58 [2022-10-15 17:29:27,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:27,782 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 549 transitions. [2022-10-15 17:29:27,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states 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 17:29:27,783 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 549 transitions. [2022-10-15 17:29:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 17:29:27,793 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:27,794 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] [2022-10-15 17:29:27,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:29:27,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:27,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:27,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1017067947, now seen corresponding path program 1 times [2022-10-15 17:29:27,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:27,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23662917] [2022-10-15 17:29:27,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:27,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:27,953 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 17:29:27,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:27,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23662917] [2022-10-15 17:29:27,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23662917] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:27,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:27,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:29:27,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729165737] [2022-10-15 17:29:27,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:27,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:29:27,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:27,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:29:27,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:29:27,957 INFO L87 Difference]: Start difference. First operand 344 states and 549 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:27,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:27,989 INFO L93 Difference]: Finished difference Result 606 states and 966 transitions. [2022-10-15 17:29:27,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:29:27,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-10-15 17:29:27,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:27,995 INFO L225 Difference]: With dead ends: 606 [2022-10-15 17:29:27,995 INFO L226 Difference]: Without dead ends: 606 [2022-10-15 17:29:27,995 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 17:29:27,998 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 113 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:27,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 392 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:29:28,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-10-15 17:29:28,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 600. [2022-10-15 17:29:28,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 1.6043405676126878) internal successors, (961), 599 states have internal predecessors, (961), 0 states have call successors, (0), 0 states 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 17:29:28,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 961 transitions. [2022-10-15 17:29:28,021 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 961 transitions. Word has length 60 [2022-10-15 17:29:28,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:28,021 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 961 transitions. [2022-10-15 17:29:28,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:28,022 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 961 transitions. [2022-10-15 17:29:28,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-15 17:29:28,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:28,024 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] [2022-10-15 17:29:28,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:29:28,025 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:28,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:28,026 INFO L85 PathProgramCache]: Analyzing trace with hash 291448600, now seen corresponding path program 1 times [2022-10-15 17:29:28,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:28,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581985152] [2022-10-15 17:29:28,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:28,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:28,201 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 17:29:28,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:28,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581985152] [2022-10-15 17:29:28,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581985152] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:28,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:28,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:29:28,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291343900] [2022-10-15 17:29:28,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:28,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:29:28,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:28,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:29:28,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:29:28,205 INFO L87 Difference]: Start difference. First operand 600 states and 961 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 17:29:28,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:28,401 INFO L93 Difference]: Finished difference Result 2042 states and 3332 transitions. [2022-10-15 17:29:28,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:29:28,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-10-15 17:29:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:28,414 INFO L225 Difference]: With dead ends: 2042 [2022-10-15 17:29:28,414 INFO L226 Difference]: Without dead ends: 2042 [2022-10-15 17:29:28,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:29:28,417 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 851 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:28,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1318 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:29:28,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2022-10-15 17:29:28,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 1077. [2022-10-15 17:29:28,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1076 states have (on average 1.6161710037174721) internal successors, (1739), 1076 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states 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 17:29:28,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1739 transitions. [2022-10-15 17:29:28,462 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1739 transitions. Word has length 62 [2022-10-15 17:29:28,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:28,463 INFO L495 AbstractCegarLoop]: Abstraction has 1077 states and 1739 transitions. [2022-10-15 17:29:28,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states 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 17:29:28,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1739 transitions. [2022-10-15 17:29:28,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 17:29:28,465 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:28,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:28,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:29:28,466 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:28,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:28,467 INFO L85 PathProgramCache]: Analyzing trace with hash 382467820, now seen corresponding path program 1 times [2022-10-15 17:29:28,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:28,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897249907] [2022-10-15 17:29:28,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:28,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:28,612 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 17:29:28,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:28,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897249907] [2022-10-15 17:29:28,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897249907] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:28,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:28,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:29:28,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390762472] [2022-10-15 17:29:28,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:28,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:29:28,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:28,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:29:28,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:29:28,617 INFO L87 Difference]: Start difference. First operand 1077 states and 1739 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:28,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:28,713 INFO L93 Difference]: Finished difference Result 2119 states and 3465 transitions. [2022-10-15 17:29:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:29:28,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-10-15 17:29:28,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:28,728 INFO L225 Difference]: With dead ends: 2119 [2022-10-15 17:29:28,728 INFO L226 Difference]: Without dead ends: 2119 [2022-10-15 17:29:28,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:29:28,730 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 404 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:28,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 709 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:29:28,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2022-10-15 17:29:28,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1589. [2022-10-15 17:29:28,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1588 states have (on average 1.6246851385390428) internal successors, (2580), 1588 states have internal predecessors, (2580), 0 states have call successors, (0), 0 states 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 17:29:28,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2580 transitions. [2022-10-15 17:29:28,791 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2580 transitions. Word has length 63 [2022-10-15 17:29:28,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:28,791 INFO L495 AbstractCegarLoop]: Abstraction has 1589 states and 2580 transitions. [2022-10-15 17:29:28,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:28,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2580 transitions. [2022-10-15 17:29:28,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-15 17:29:28,795 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:28,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:28,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:29:28,795 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:28,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:28,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1086345633, now seen corresponding path program 1 times [2022-10-15 17:29:28,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:28,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467550444] [2022-10-15 17:29:28,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:28,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:28,975 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 17:29:28,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:28,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467550444] [2022-10-15 17:29:28,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467550444] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:28,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:28,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:29:28,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785107975] [2022-10-15 17:29:28,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:28,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:29:28,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:28,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:29:28,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:29:28,981 INFO L87 Difference]: Start difference. First operand 1589 states and 2580 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:29,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:29,090 INFO L93 Difference]: Finished difference Result 3075 states and 5016 transitions. [2022-10-15 17:29:29,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:29:29,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2022-10-15 17:29:29,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:29,110 INFO L225 Difference]: With dead ends: 3075 [2022-10-15 17:29:29,111 INFO L226 Difference]: Without dead ends: 3075 [2022-10-15 17:29:29,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:29:29,113 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 402 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:29,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 717 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:29:29,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3075 states. [2022-10-15 17:29:29,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3075 to 2320. [2022-10-15 17:29:29,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2320 states, 2319 states have (on average 1.624407072013799) internal successors, (3767), 2319 states have internal predecessors, (3767), 0 states have call successors, (0), 0 states 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 17:29:29,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3767 transitions. [2022-10-15 17:29:29,221 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3767 transitions. Word has length 64 [2022-10-15 17:29:29,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:29,222 INFO L495 AbstractCegarLoop]: Abstraction has 2320 states and 3767 transitions. [2022-10-15 17:29:29,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:29,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3767 transitions. [2022-10-15 17:29:29,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:29:29,225 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:29,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:29,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:29:29,226 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:29,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:29,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1879078355, now seen corresponding path program 1 times [2022-10-15 17:29:29,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:29,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856375114] [2022-10-15 17:29:29,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:29,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:29,314 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 17:29:29,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:29,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856375114] [2022-10-15 17:29:29,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856375114] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:29,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:29,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:29:29,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691357704] [2022-10-15 17:29:29,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:29,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:29:29,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:29,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:29:29,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:29:29,322 INFO L87 Difference]: Start difference. First operand 2320 states and 3767 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:29,372 INFO L93 Difference]: Finished difference Result 3501 states and 5674 transitions. [2022-10-15 17:29:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:29:29,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-15 17:29:29,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:29,396 INFO L225 Difference]: With dead ends: 3501 [2022-10-15 17:29:29,396 INFO L226 Difference]: Without dead ends: 3501 [2022-10-15 17:29:29,397 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 17:29:29,398 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 117 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:29,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 463 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:29:29,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2022-10-15 17:29:29,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 3499. [2022-10-15 17:29:29,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3499 states, 3498 states have (on average 1.6217838765008576) internal successors, (5673), 3498 states have internal predecessors, (5673), 0 states have call successors, (0), 0 states 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 17:29:29,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 5673 transitions. [2022-10-15 17:29:29,526 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 5673 transitions. Word has length 65 [2022-10-15 17:29:29,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:29,527 INFO L495 AbstractCegarLoop]: Abstraction has 3499 states and 5673 transitions. [2022-10-15 17:29:29,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:29,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 5673 transitions. [2022-10-15 17:29:29,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:29:29,529 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:29,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:29,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:29:29,531 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:29,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:29,535 INFO L85 PathProgramCache]: Analyzing trace with hash -450865020, now seen corresponding path program 1 times [2022-10-15 17:29:29,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:29,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582805039] [2022-10-15 17:29:29,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:29,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:29,646 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 17:29:29,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:29,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582805039] [2022-10-15 17:29:29,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582805039] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:29,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:29,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:29:29,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41867775] [2022-10-15 17:29:29,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:29,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:29:29,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:29,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:29:29,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:29:29,650 INFO L87 Difference]: Start difference. First operand 3499 states and 5673 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:29,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:29,706 INFO L93 Difference]: Finished difference Result 4917 states and 7952 transitions. [2022-10-15 17:29:29,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:29:29,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-15 17:29:29,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:29,735 INFO L225 Difference]: With dead ends: 4917 [2022-10-15 17:29:29,735 INFO L226 Difference]: Without dead ends: 4917 [2022-10-15 17:29:29,736 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 17:29:29,739 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 112 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:29,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 446 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:29:29,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2022-10-15 17:29:29,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4915. [2022-10-15 17:29:29,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4915 states, 4914 states have (on average 1.618030118030118) internal successors, (7951), 4914 states have internal predecessors, (7951), 0 states have call successors, (0), 0 states 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 17:29:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4915 states to 4915 states and 7951 transitions. [2022-10-15 17:29:29,960 INFO L78 Accepts]: Start accepts. Automaton has 4915 states and 7951 transitions. Word has length 65 [2022-10-15 17:29:29,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:29,961 INFO L495 AbstractCegarLoop]: Abstraction has 4915 states and 7951 transitions. [2022-10-15 17:29:29,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:29,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4915 states and 7951 transitions. [2022-10-15 17:29:29,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:29:29,970 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:29,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:29,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:29:29,971 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:29,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:29,972 INFO L85 PathProgramCache]: Analyzing trace with hash 629635603, now seen corresponding path program 1 times [2022-10-15 17:29:29,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:29,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296445658] [2022-10-15 17:29:29,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:29,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:30,147 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 17:29:30,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:30,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296445658] [2022-10-15 17:29:30,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296445658] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:30,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:30,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:29:30,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367819529] [2022-10-15 17:29:30,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:30,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:29:30,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:30,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:29:30,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:29:30,154 INFO L87 Difference]: Start difference. First operand 4915 states and 7951 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:30,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:30,293 INFO L93 Difference]: Finished difference Result 10363 states and 16797 transitions. [2022-10-15 17:29:30,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:29:30,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-15 17:29:30,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:30,346 INFO L225 Difference]: With dead ends: 10363 [2022-10-15 17:29:30,346 INFO L226 Difference]: Without dead ends: 10363 [2022-10-15 17:29:30,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:29:30,348 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 400 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:30,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 583 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:29:30,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2022-10-15 17:29:30,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 7613. [2022-10-15 17:29:30,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7613 states, 7612 states have (on average 1.614424592748292) internal successors, (12289), 7612 states have internal predecessors, (12289), 0 states have call successors, (0), 0 states 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 17:29:30,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7613 states to 7613 states and 12289 transitions. [2022-10-15 17:29:30,663 INFO L78 Accepts]: Start accepts. Automaton has 7613 states and 12289 transitions. Word has length 65 [2022-10-15 17:29:30,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:30,663 INFO L495 AbstractCegarLoop]: Abstraction has 7613 states and 12289 transitions. [2022-10-15 17:29:30,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:30,664 INFO L276 IsEmpty]: Start isEmpty. Operand 7613 states and 12289 transitions. [2022-10-15 17:29:30,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:29:30,665 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:30,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:30,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:29:30,666 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:30,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:30,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1734684554, now seen corresponding path program 1 times [2022-10-15 17:29:30,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:30,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436433624] [2022-10-15 17:29:30,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:30,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:30,775 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 17:29:30,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:30,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436433624] [2022-10-15 17:29:30,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436433624] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:30,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:30,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:29:30,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293750102] [2022-10-15 17:29:30,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:30,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:29:30,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:30,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:29:30,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:29:30,781 INFO L87 Difference]: Start difference. First operand 7613 states and 12289 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:30,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:30,890 INFO L93 Difference]: Finished difference Result 11162 states and 18066 transitions. [2022-10-15 17:29:30,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:29:30,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-15 17:29:30,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:30,931 INFO L225 Difference]: With dead ends: 11162 [2022-10-15 17:29:30,931 INFO L226 Difference]: Without dead ends: 11162 [2022-10-15 17:29:30,932 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 17:29:30,933 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 122 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:30,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 489 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:29:30,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-10-15 17:29:31,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 11160. [2022-10-15 17:29:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11160 states, 11159 states have (on average 1.6188726588403979) internal successors, (18065), 11159 states have internal predecessors, (18065), 0 states have call successors, (0), 0 states 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 17:29:31,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11160 states to 11160 states and 18065 transitions. [2022-10-15 17:29:31,339 INFO L78 Accepts]: Start accepts. Automaton has 11160 states and 18065 transitions. Word has length 65 [2022-10-15 17:29:31,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:31,339 INFO L495 AbstractCegarLoop]: Abstraction has 11160 states and 18065 transitions. [2022-10-15 17:29:31,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:31,340 INFO L276 IsEmpty]: Start isEmpty. Operand 11160 states and 18065 transitions. [2022-10-15 17:29:31,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 17:29:31,341 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:31,342 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] [2022-10-15 17:29:31,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:29:31,342 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:31,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:31,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2027885532, now seen corresponding path program 1 times [2022-10-15 17:29:31,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:31,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523398085] [2022-10-15 17:29:31,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:31,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:31,710 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 17:29:31,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:31,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523398085] [2022-10-15 17:29:31,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523398085] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:31,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:31,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:29:31,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966255603] [2022-10-15 17:29:31,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:31,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:29:31,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:31,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:29:31,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:29:31,713 INFO L87 Difference]: Start difference. First operand 11160 states and 18065 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 17:29:31,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:31,861 INFO L93 Difference]: Finished difference Result 11162 states and 17941 transitions. [2022-10-15 17:29:31,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:29:31,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-10-15 17:29:31,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:31,895 INFO L225 Difference]: With dead ends: 11162 [2022-10-15 17:29:31,896 INFO L226 Difference]: Without dead ends: 11162 [2022-10-15 17:29:31,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:29:31,898 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 285 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:31,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 579 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:29:31,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-10-15 17:29:32,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 11160. [2022-10-15 17:29:32,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11160 states, 11159 states have (on average 1.607670938256116) internal successors, (17940), 11159 states have internal predecessors, (17940), 0 states have call successors, (0), 0 states 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 17:29:32,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11160 states to 11160 states and 17940 transitions. [2022-10-15 17:29:32,199 INFO L78 Accepts]: Start accepts. Automaton has 11160 states and 17940 transitions. Word has length 67 [2022-10-15 17:29:32,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:32,200 INFO L495 AbstractCegarLoop]: Abstraction has 11160 states and 17940 transitions. [2022-10-15 17:29:32,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 17:29:32,201 INFO L276 IsEmpty]: Start isEmpty. Operand 11160 states and 17940 transitions. [2022-10-15 17:29:32,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-15 17:29:32,202 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:32,202 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] [2022-10-15 17:29:32,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:29:32,203 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:32,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:32,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1776446511, now seen corresponding path program 1 times [2022-10-15 17:29:32,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:32,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114008183] [2022-10-15 17:29:32,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:32,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:32,597 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 17:29:32,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:32,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114008183] [2022-10-15 17:29:32,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114008183] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:32,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:32,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:29:32,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600056928] [2022-10-15 17:29:32,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:32,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:29:32,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:32,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:29:32,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:29:32,601 INFO L87 Difference]: Start difference. First operand 11160 states and 17940 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:32,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:32,815 INFO L93 Difference]: Finished difference Result 20864 states and 33294 transitions. [2022-10-15 17:29:32,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:29:32,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-10-15 17:29:32,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:32,892 INFO L225 Difference]: With dead ends: 20864 [2022-10-15 17:29:32,892 INFO L226 Difference]: Without dead ends: 20864 [2022-10-15 17:29:32,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:29:32,894 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 392 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:32,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 583 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:29:32,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20864 states. [2022-10-15 17:29:33,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20864 to 20862. [2022-10-15 17:29:33,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20862 states, 20861 states have (on average 1.595944585590336) internal successors, (33293), 20861 states have internal predecessors, (33293), 0 states have call successors, (0), 0 states 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 17:29:33,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20862 states to 20862 states and 33293 transitions. [2022-10-15 17:29:33,491 INFO L78 Accepts]: Start accepts. Automaton has 20862 states and 33293 transitions. Word has length 70 [2022-10-15 17:29:33,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:33,491 INFO L495 AbstractCegarLoop]: Abstraction has 20862 states and 33293 transitions. [2022-10-15 17:29:33,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:33,492 INFO L276 IsEmpty]: Start isEmpty. Operand 20862 states and 33293 transitions. [2022-10-15 17:29:33,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 17:29:33,493 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:33,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:33,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:29:33,494 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:33,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:33,494 INFO L85 PathProgramCache]: Analyzing trace with hash 762823713, now seen corresponding path program 1 times [2022-10-15 17:29:33,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:33,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641414049] [2022-10-15 17:29:33,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:33,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:34,015 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 17:29:34,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:34,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641414049] [2022-10-15 17:29:34,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641414049] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:34,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:34,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:29:34,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311290438] [2022-10-15 17:29:34,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:34,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:29:34,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:34,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:29:34,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:29:34,018 INFO L87 Difference]: Start difference. First operand 20862 states and 33293 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:34,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:34,283 INFO L93 Difference]: Finished difference Result 39972 states and 63143 transitions. [2022-10-15 17:29:34,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:29:34,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-10-15 17:29:34,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:34,426 INFO L225 Difference]: With dead ends: 39972 [2022-10-15 17:29:34,426 INFO L226 Difference]: Without dead ends: 39972 [2022-10-15 17:29:34,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:29:34,427 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 250 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:34,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 980 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:29:34,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39972 states. [2022-10-15 17:29:35,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39972 to 21586. [2022-10-15 17:29:35,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21586 states, 21585 states have (on average 1.5755385684503127) internal successors, (34008), 21585 states have internal predecessors, (34008), 0 states have call successors, (0), 0 states 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 17:29:35,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21586 states to 21586 states and 34008 transitions. [2022-10-15 17:29:35,382 INFO L78 Accepts]: Start accepts. Automaton has 21586 states and 34008 transitions. Word has length 71 [2022-10-15 17:29:35,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:35,383 INFO L495 AbstractCegarLoop]: Abstraction has 21586 states and 34008 transitions. [2022-10-15 17:29:35,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:35,383 INFO L276 IsEmpty]: Start isEmpty. Operand 21586 states and 34008 transitions. [2022-10-15 17:29:35,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-15 17:29:35,386 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:35,387 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:35,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:29:35,387 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:35,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:35,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1613729099, now seen corresponding path program 1 times [2022-10-15 17:29:35,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:35,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549910252] [2022-10-15 17:29:35,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:35,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:35,814 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:29:35,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:35,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549910252] [2022-10-15 17:29:35,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549910252] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:35,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:35,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:29:35,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539677986] [2022-10-15 17:29:35,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:35,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:29:35,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:35,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:29:35,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:29:35,818 INFO L87 Difference]: Start difference. First operand 21586 states and 34008 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states 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 17:29:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:36,061 INFO L93 Difference]: Finished difference Result 42410 states and 66891 transitions. [2022-10-15 17:29:36,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:29:36,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-10-15 17:29:36,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:36,164 INFO L225 Difference]: With dead ends: 42410 [2022-10-15 17:29:36,164 INFO L226 Difference]: Without dead ends: 42410 [2022-10-15 17:29:36,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:29:36,166 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 510 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:36,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1002 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:29:36,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42410 states. [2022-10-15 17:29:37,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42410 to 33120. [2022-10-15 17:29:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33120 states, 33119 states have (on average 1.5748060025966968) internal successors, (52156), 33119 states have internal predecessors, (52156), 0 states have call successors, (0), 0 states 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 17:29:37,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33120 states to 33120 states and 52156 transitions. [2022-10-15 17:29:37,534 INFO L78 Accepts]: Start accepts. Automaton has 33120 states and 52156 transitions. Word has length 93 [2022-10-15 17:29:37,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:37,535 INFO L495 AbstractCegarLoop]: Abstraction has 33120 states and 52156 transitions. [2022-10-15 17:29:37,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states 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 17:29:37,535 INFO L276 IsEmpty]: Start isEmpty. Operand 33120 states and 52156 transitions. [2022-10-15 17:29:37,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-15 17:29:37,538 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:37,538 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:37,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:29:37,539 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:37,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:37,540 INFO L85 PathProgramCache]: Analyzing trace with hash 351294822, now seen corresponding path program 1 times [2022-10-15 17:29:37,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:37,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650716930] [2022-10-15 17:29:37,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:37,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:37,749 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 17:29:37,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:37,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650716930] [2022-10-15 17:29:37,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650716930] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:37,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:37,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:29:37,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32749921] [2022-10-15 17:29:37,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:37,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:29:37,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:37,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:29:37,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:29:37,755 INFO L87 Difference]: Start difference. First operand 33120 states and 52156 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 17:29:38,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:38,108 INFO L93 Difference]: Finished difference Result 46462 states and 73327 transitions. [2022-10-15 17:29:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:29:38,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-10-15 17:29:38,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:38,209 INFO L225 Difference]: With dead ends: 46462 [2022-10-15 17:29:38,210 INFO L226 Difference]: Without dead ends: 46462 [2022-10-15 17:29:38,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:29:38,211 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 514 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:38,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1003 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:29:38,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46462 states. [2022-10-15 17:29:39,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46462 to 44808. [2022-10-15 17:29:39,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44808 states, 44807 states have (on average 1.5760930211797264) internal successors, (70620), 44807 states have internal predecessors, (70620), 0 states have call successors, (0), 0 states 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 17:29:39,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44808 states to 44808 states and 70620 transitions. [2022-10-15 17:29:39,728 INFO L78 Accepts]: Start accepts. Automaton has 44808 states and 70620 transitions. Word has length 93 [2022-10-15 17:29:39,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:39,729 INFO L495 AbstractCegarLoop]: Abstraction has 44808 states and 70620 transitions. [2022-10-15 17:29:39,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 17:29:39,729 INFO L276 IsEmpty]: Start isEmpty. Operand 44808 states and 70620 transitions. [2022-10-15 17:29:39,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-10-15 17:29:39,732 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:39,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:39,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:29:39,733 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:39,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:39,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1758122900, now seen corresponding path program 1 times [2022-10-15 17:29:39,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:39,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461362338] [2022-10-15 17:29:39,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:39,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:39,929 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:29:39,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:39,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461362338] [2022-10-15 17:29:39,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461362338] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:39,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:39,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:29:39,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260258945] [2022-10-15 17:29:39,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:39,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:29:39,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:39,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:29:39,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:29:39,932 INFO L87 Difference]: Start difference. First operand 44808 states and 70620 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:40,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:40,240 INFO L93 Difference]: Finished difference Result 53102 states and 83947 transitions. [2022-10-15 17:29:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:29:40,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-10-15 17:29:40,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:40,363 INFO L225 Difference]: With dead ends: 53102 [2022-10-15 17:29:40,364 INFO L226 Difference]: Without dead ends: 53102 [2022-10-15 17:29:40,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:29:40,365 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 510 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:40,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 1028 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:29:40,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53102 states. [2022-10-15 17:29:41,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53102 to 51448. [2022-10-15 17:29:41,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51448 states, 51447 states have (on average 1.5791008222053764) internal successors, (81240), 51447 states have internal predecessors, (81240), 0 states have call successors, (0), 0 states 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 17:29:42,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51448 states to 51448 states and 81240 transitions. [2022-10-15 17:29:42,173 INFO L78 Accepts]: Start accepts. Automaton has 51448 states and 81240 transitions. Word has length 93 [2022-10-15 17:29:42,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:42,173 INFO L495 AbstractCegarLoop]: Abstraction has 51448 states and 81240 transitions. [2022-10-15 17:29:42,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:42,174 INFO L276 IsEmpty]: Start isEmpty. Operand 51448 states and 81240 transitions. [2022-10-15 17:29:42,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-15 17:29:42,185 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:42,185 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:42,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:29:42,186 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:42,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:42,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1270260760, now seen corresponding path program 1 times [2022-10-15 17:29:42,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:42,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821388167] [2022-10-15 17:29:42,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:42,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:42,466 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:29:42,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:42,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821388167] [2022-10-15 17:29:42,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821388167] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:42,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:42,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:29:42,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141268225] [2022-10-15 17:29:42,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:42,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:29:42,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:42,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:29:42,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:29:42,471 INFO L87 Difference]: Start difference. First operand 51448 states and 81240 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:42,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:42,991 INFO L93 Difference]: Finished difference Result 66759 states and 105516 transitions. [2022-10-15 17:29:42,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:29:42,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-10-15 17:29:42,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:43,190 INFO L225 Difference]: With dead ends: 66759 [2022-10-15 17:29:43,190 INFO L226 Difference]: Without dead ends: 66759 [2022-10-15 17:29:43,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:29:43,192 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 228 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:43,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 731 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:29:43,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66759 states. [2022-10-15 17:29:45,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66759 to 65107. [2022-10-15 17:29:45,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65107 states, 65106 states have (on average 1.5796086382207477) internal successors, (102842), 65106 states have internal predecessors, (102842), 0 states have call successors, (0), 0 states 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 17:29:45,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65107 states to 65107 states and 102842 transitions. [2022-10-15 17:29:45,899 INFO L78 Accepts]: Start accepts. Automaton has 65107 states and 102842 transitions. Word has length 94 [2022-10-15 17:29:45,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:45,900 INFO L495 AbstractCegarLoop]: Abstraction has 65107 states and 102842 transitions. [2022-10-15 17:29:45,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 65107 states and 102842 transitions. [2022-10-15 17:29:45,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-10-15 17:29:45,903 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:45,903 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:29:45,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:29:45,903 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:45,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:45,904 INFO L85 PathProgramCache]: Analyzing trace with hash 36164624, now seen corresponding path program 1 times [2022-10-15 17:29:45,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:45,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665308044] [2022-10-15 17:29:45,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:45,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:29:46,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:46,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665308044] [2022-10-15 17:29:46,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665308044] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:46,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:46,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:29:46,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787380507] [2022-10-15 17:29:46,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:46,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:29:46,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:46,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:29:46,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:29:46,004 INFO L87 Difference]: Start difference. First operand 65107 states and 102842 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:47,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:47,040 INFO L93 Difference]: Finished difference Result 109892 states and 173498 transitions. [2022-10-15 17:29:47,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:29:47,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-10-15 17:29:47,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:47,421 INFO L225 Difference]: With dead ends: 109892 [2022-10-15 17:29:47,421 INFO L226 Difference]: Without dead ends: 109892 [2022-10-15 17:29:47,422 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 17:29:47,423 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 103 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:47,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 386 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:29:47,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109892 states. [2022-10-15 17:29:49,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109892 to 109614. [2022-10-15 17:29:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109614 states, 109613 states have (on average 1.5802961327579759) internal successors, (173221), 109613 states have internal predecessors, (173221), 0 states have call successors, (0), 0 states 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 17:29:50,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109614 states to 109614 states and 173221 transitions. [2022-10-15 17:29:50,473 INFO L78 Accepts]: Start accepts. Automaton has 109614 states and 173221 transitions. Word has length 94 [2022-10-15 17:29:50,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:50,474 INFO L495 AbstractCegarLoop]: Abstraction has 109614 states and 173221 transitions. [2022-10-15 17:29:50,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:29:50,477 INFO L276 IsEmpty]: Start isEmpty. Operand 109614 states and 173221 transitions. [2022-10-15 17:29:50,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-15 17:29:50,499 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:50,500 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:50,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:29:50,501 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:50,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:50,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1988921020, now seen corresponding path program 1 times [2022-10-15 17:29:50,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:50,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379229114] [2022-10-15 17:29:50,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:50,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:50,700 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:29:50,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:50,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379229114] [2022-10-15 17:29:50,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379229114] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:50,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:50,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:29:50,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570272715] [2022-10-15 17:29:50,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:50,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:29:50,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:50,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:29:50,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:29:50,704 INFO L87 Difference]: Start difference. First operand 109614 states and 173221 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 17:29:51,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:51,399 INFO L93 Difference]: Finished difference Result 136009 states and 214971 transitions. [2022-10-15 17:29:51,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:29:51,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-10-15 17:29:51,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:52,320 INFO L225 Difference]: With dead ends: 136009 [2022-10-15 17:29:52,320 INFO L226 Difference]: Without dead ends: 136009 [2022-10-15 17:29:52,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:29:52,336 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 232 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:52,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 725 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:29:52,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136009 states. [2022-10-15 17:29:54,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136009 to 129429. [2022-10-15 17:29:54,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129429 states, 129428 states have (on average 1.5792023364341565) internal successors, (204393), 129428 states have internal predecessors, (204393), 0 states have call successors, (0), 0 states 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 17:29:55,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129429 states to 129429 states and 204393 transitions. [2022-10-15 17:29:55,925 INFO L78 Accepts]: Start accepts. Automaton has 129429 states and 204393 transitions. Word has length 95 [2022-10-15 17:29:55,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:29:55,925 INFO L495 AbstractCegarLoop]: Abstraction has 129429 states and 204393 transitions. [2022-10-15 17:29:55,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 17:29:55,926 INFO L276 IsEmpty]: Start isEmpty. Operand 129429 states and 204393 transitions. [2022-10-15 17:29:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-15 17:29:55,929 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:29:55,929 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:55,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 17:29:55,930 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:29:55,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:29:55,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1437742065, now seen corresponding path program 1 times [2022-10-15 17:29:55,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:29:55,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040182988] [2022-10-15 17:29:55,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:29:55,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:29:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:29:56,076 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:29:56,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:29:56,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040182988] [2022-10-15 17:29:56,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040182988] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:29:56,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:29:56,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:29:56,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108179875] [2022-10-15 17:29:56,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:29:56,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:29:56,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:29:56,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:29:56,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:29:56,083 INFO L87 Difference]: Start difference. First operand 129429 states and 204393 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 17:29:57,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:29:57,664 INFO L93 Difference]: Finished difference Result 212560 states and 335141 transitions. [2022-10-15 17:29:57,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:29:57,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-10-15 17:29:57,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:29:58,384 INFO L225 Difference]: With dead ends: 212560 [2022-10-15 17:29:58,384 INFO L226 Difference]: Without dead ends: 212560 [2022-10-15 17:29:58,385 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 17:29:58,386 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 103 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:29:58,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 385 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:29:58,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212560 states. [2022-10-15 17:30:02,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212560 to 212030. [2022-10-15 17:30:03,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212030 states, 212029 states have (on average 1.578142612567149) internal successors, (334612), 212029 states have internal predecessors, (334612), 0 states have call successors, (0), 0 states 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 17:30:04,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212030 states to 212030 states and 334612 transitions. [2022-10-15 17:30:04,176 INFO L78 Accepts]: Start accepts. Automaton has 212030 states and 334612 transitions. Word has length 95 [2022-10-15 17:30:04,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:30:04,176 INFO L495 AbstractCegarLoop]: Abstraction has 212030 states and 334612 transitions. [2022-10-15 17:30:04,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states 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 17:30:04,177 INFO L276 IsEmpty]: Start isEmpty. Operand 212030 states and 334612 transitions. [2022-10-15 17:30:04,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-15 17:30:04,181 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:30:04,182 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:30:04,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-15 17:30:04,182 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:30:04,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:30:04,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1035854142, now seen corresponding path program 1 times [2022-10-15 17:30:04,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:30:04,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842395225] [2022-10-15 17:30:04,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:30:04,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:30:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:30:04,293 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:30:04,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:30:04,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842395225] [2022-10-15 17:30:04,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842395225] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:30:04,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:30:04,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:30:04,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549869506] [2022-10-15 17:30:04,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:30:04,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:30:04,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:30:04,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:30:04,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:30:04,297 INFO L87 Difference]: Start difference. First operand 212030 states and 334612 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:30:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:30:07,579 INFO L93 Difference]: Finished difference Result 413271 states and 647964 transitions. [2022-10-15 17:30:07,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:30:07,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-10-15 17:30:07,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:30:08,847 INFO L225 Difference]: With dead ends: 413271 [2022-10-15 17:30:08,847 INFO L226 Difference]: Without dead ends: 413271 [2022-10-15 17:30:08,847 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 17:30:08,848 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 142 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:30:08,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 472 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 17:30:10,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413271 states.