/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/loop-lit/gj2007.c.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:01:04,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:01:04,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:01:04,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:01:04,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:01:04,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:01:04,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:01:04,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:01:04,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:01:04,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:01:04,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:01:04,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:01:04,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:01:04,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:01:04,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:01:04,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:01:04,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:01:04,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:01:04,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:01:04,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:01:04,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:01:04,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:01:04,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:01:04,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:01:04,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:01:04,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:01:04,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:01:04,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:01:04,691 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 17:01:04,747 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:01:04,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:01:04,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:01:04,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:01:04,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:01:04,750 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:01:04,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:01:04,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:01:04,753 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:01:04,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:01:04,754 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:01:04,754 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:01:04,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:01:04,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:01:04,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:01:04,755 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:01:04,755 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:01:04,755 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:01:04,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:01:04,756 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:01:04,756 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:01:04,756 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:01:04,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:01:04,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:01:04,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:01:04,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:01:04,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:01:04,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:01:04,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:01:04,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:01:04,758 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:01:05,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:01:05,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:01:05,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:01:05,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:01:05,207 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:01:05,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c [2022-10-15 17:01:05,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd6083075/cc30b6009ef14f298bf6a46737666ac9/FLAGaf2b36386 [2022-10-15 17:01:05,976 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:01:05,982 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c [2022-10-15 17:01:05,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd6083075/cc30b6009ef14f298bf6a46737666ac9/FLAGaf2b36386 [2022-10-15 17:01:06,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd6083075/cc30b6009ef14f298bf6a46737666ac9 [2022-10-15 17:01:06,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:01:06,333 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:01:06,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:01:06,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:01:06,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:01:06,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7b3e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06, skipping insertion in model container [2022-10-15 17:01:06,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:01:06,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:01:06,539 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/loop-lit/gj2007.c.i.p+lhb-reducer.c[1613,1626] [2022-10-15 17:01:06,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:01:06,563 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:01:06,585 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/loop-lit/gj2007.c.i.p+lhb-reducer.c[1613,1626] [2022-10-15 17:01:06,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:01:06,608 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:01:06,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06 WrapperNode [2022-10-15 17:01:06,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:01:06,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:01:06,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:01:06,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:01:06,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,652 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 115 [2022-10-15 17:01:06,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:01:06,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:01:06,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:01:06,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:01:06,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,675 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:01:06,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:01:06,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:01:06,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:01:06,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06" (1/1) ... [2022-10-15 17:01:06,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:01:06,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:01:06,725 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 17:01:06,753 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 17:01:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:01:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:01:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:01:06,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:01:06,917 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:01:06,919 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:01:07,220 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:01:07,228 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:01:07,229 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:01:07,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:01:07 BoogieIcfgContainer [2022-10-15 17:01:07,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:01:07,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:01:07,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:01:07,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:01:07,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:01:06" (1/3) ... [2022-10-15 17:01:07,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72245bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:01:07, skipping insertion in model container [2022-10-15 17:01:07,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:01:06" (2/3) ... [2022-10-15 17:01:07,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72245bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:01:07, skipping insertion in model container [2022-10-15 17:01:07,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:01:07" (3/3) ... [2022-10-15 17:01:07,242 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007.c.i.p+lhb-reducer.c [2022-10-15 17:01:07,299 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:01:07,300 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:01:07,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:01:07,367 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;@7b7890b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:01:07,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:01:07,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 28 states have internal predecessors, (49), 0 states have call successors, (0), 0 states 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 17:01:07,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 17:01:07,380 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:07,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 17:01:07,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:07,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:07,399 INFO L85 PathProgramCache]: Analyzing trace with hash 929253, now seen corresponding path program 1 times [2022-10-15 17:01:07,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:07,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114511046] [2022-10-15 17:01:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:07,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:07,692 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 17:01:07,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:07,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114511046] [2022-10-15 17:01:07,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114511046] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:01:07,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:01:07,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:01:07,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291590084] [2022-10-15 17:01:07,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:01:07,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:01:07,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:07,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:01:07,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:01:07,739 INFO L87 Difference]: Start difference. First operand has 29 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 28 states have internal predecessors, (49), 0 states have call successors, (0), 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, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:01:07,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:07,820 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2022-10-15 17:01:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:01:07,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-15 17:01:07,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:07,837 INFO L225 Difference]: With dead ends: 29 [2022-10-15 17:01:07,838 INFO L226 Difference]: Without dead ends: 27 [2022-10-15 17:01:07,840 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 17:01:07,848 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:07,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 51 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:01:07,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-15 17:01:07,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-15 17:01:07,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.76) internal successors, (44), 26 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:01:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 44 transitions. [2022-10-15 17:01:07,900 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 44 transitions. Word has length 4 [2022-10-15 17:01:07,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:07,900 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 44 transitions. [2022-10-15 17:01:07,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:01:07,901 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 44 transitions. [2022-10-15 17:01:07,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-15 17:01:07,902 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:07,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-15 17:01:07,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:01:07,903 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:07,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:07,906 INFO L85 PathProgramCache]: Analyzing trace with hash 889511052, now seen corresponding path program 1 times [2022-10-15 17:01:07,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:07,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056599284] [2022-10-15 17:01:07,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:07,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:08,025 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 17:01:08,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:08,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056599284] [2022-10-15 17:01:08,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056599284] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:01:08,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:01:08,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:01:08,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142524435] [2022-10-15 17:01:08,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:01:08,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:01:08,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:08,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:01:08,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:01:08,035 INFO L87 Difference]: Start difference. First operand 27 states and 44 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states 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 17:01:08,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:08,140 INFO L93 Difference]: Finished difference Result 27 states and 42 transitions. [2022-10-15 17:01:08,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:01:08,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-10-15 17:01:08,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:08,142 INFO L225 Difference]: With dead ends: 27 [2022-10-15 17:01:08,142 INFO L226 Difference]: Without dead ends: 27 [2022-10-15 17:01:08,143 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 17:01:08,145 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:08,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 48 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:01:08,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-15 17:01:08,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-15 17:01:08,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.68) internal successors, (42), 26 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:01:08,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 42 transitions. [2022-10-15 17:01:08,153 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 42 transitions. Word has length 6 [2022-10-15 17:01:08,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:08,157 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 42 transitions. [2022-10-15 17:01:08,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states 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 17:01:08,158 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2022-10-15 17:01:08,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 17:01:08,158 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:08,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:01:08,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:01:08,162 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:08,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:08,163 INFO L85 PathProgramCache]: Analyzing trace with hash 118462291, now seen corresponding path program 1 times [2022-10-15 17:01:08,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:08,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74804739] [2022-10-15 17:01:08,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:08,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:08,262 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 17:01:08,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:08,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74804739] [2022-10-15 17:01:08,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74804739] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:01:08,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:01:08,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:01:08,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176142901] [2022-10-15 17:01:08,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:01:08,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:01:08,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:08,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:01:08,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:01:08,271 INFO L87 Difference]: Start difference. First operand 27 states and 42 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states 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 17:01:08,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:08,386 INFO L93 Difference]: Finished difference Result 41 states and 62 transitions. [2022-10-15 17:01:08,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:01:08,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-10-15 17:01:08,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:08,388 INFO L225 Difference]: With dead ends: 41 [2022-10-15 17:01:08,388 INFO L226 Difference]: Without dead ends: 41 [2022-10-15 17:01:08,389 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 17:01:08,391 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 10 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:08,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 24 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:01:08,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-15 17:01:08,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 34. [2022-10-15 17:01:08,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.5) internal successors, (48), 33 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:01:08,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2022-10-15 17:01:08,408 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 8 [2022-10-15 17:01:08,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:08,408 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2022-10-15 17:01:08,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states 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 17:01:08,409 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2022-10-15 17:01:08,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:01:08,409 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:08,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:01:08,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:01:08,410 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:08,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:08,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2124604207, now seen corresponding path program 1 times [2022-10-15 17:01:08,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:08,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639935558] [2022-10-15 17:01:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:08,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:08,454 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 17:01:08,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:08,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639935558] [2022-10-15 17:01:08,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639935558] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:01:08,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:01:08,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:01:08,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731502864] [2022-10-15 17:01:08,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:01:08,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:01:08,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:08,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:01:08,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:01:08,458 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:01:08,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:08,470 INFO L93 Difference]: Finished difference Result 33 states and 47 transitions. [2022-10-15 17:01:08,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:01:08,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 17:01:08,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:08,472 INFO L225 Difference]: With dead ends: 33 [2022-10-15 17:01:08,472 INFO L226 Difference]: Without dead ends: 32 [2022-10-15 17:01:08,472 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 17:01:08,476 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:08,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:01:08,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-15 17:01:08,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2022-10-15 17:01:08,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 0 states have call successors, (0), 0 states 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 17:01:08,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2022-10-15 17:01:08,492 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 10 [2022-10-15 17:01:08,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:08,493 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2022-10-15 17:01:08,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:01:08,493 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2022-10-15 17:01:08,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 17:01:08,494 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:08,494 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] [2022-10-15 17:01:08,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:01:08,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:08,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:08,496 INFO L85 PathProgramCache]: Analyzing trace with hash -2007464264, now seen corresponding path program 1 times [2022-10-15 17:01:08,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:08,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226909813] [2022-10-15 17:01:08,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:08,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:08,658 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 17:01:08,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:08,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226909813] [2022-10-15 17:01:08,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226909813] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:01:08,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:01:08,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:01:08,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111290621] [2022-10-15 17:01:08,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:01:08,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:01:08,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:08,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:01:08,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:01:08,666 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 17:01:08,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:08,761 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2022-10-15 17:01:08,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:01:08,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-10-15 17:01:08,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:08,763 INFO L225 Difference]: With dead ends: 39 [2022-10-15 17:01:08,764 INFO L226 Difference]: Without dead ends: 39 [2022-10-15 17:01:08,764 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 17:01:08,766 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:08,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:01:08,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-15 17:01:08,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-10-15 17:01:08,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 0 states have call successors, (0), 0 states 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 17:01:08,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2022-10-15 17:01:08,783 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 23 [2022-10-15 17:01:08,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:08,784 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2022-10-15 17:01:08,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 17:01:08,784 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2022-10-15 17:01:08,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 17:01:08,787 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:08,787 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] [2022-10-15 17:01:08,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:01:08,788 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:08,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:08,789 INFO L85 PathProgramCache]: Analyzing trace with hash 635511084, now seen corresponding path program 1 times [2022-10-15 17:01:08,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:08,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655823484] [2022-10-15 17:01:08,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:08,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:08,991 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 17:01:08,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:08,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655823484] [2022-10-15 17:01:08,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655823484] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:01:08,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:01:08,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:01:08,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841144778] [2022-10-15 17:01:08,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:01:08,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:01:08,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:08,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:01:08,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:01:08,996 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 17:01:09,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:09,066 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2022-10-15 17:01:09,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:01:09,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-10-15 17:01:09,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:09,068 INFO L225 Difference]: With dead ends: 35 [2022-10-15 17:01:09,068 INFO L226 Difference]: Without dead ends: 35 [2022-10-15 17:01:09,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:01:09,070 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:09,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 35 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:01:09,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-15 17:01:09,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-10-15 17:01:09,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:01:09,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-10-15 17:01:09,077 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 23 [2022-10-15 17:01:09,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:09,077 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-10-15 17:01:09,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 17:01:09,078 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2022-10-15 17:01:09,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 17:01:09,079 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:09,079 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] [2022-10-15 17:01:09,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:01:09,080 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:09,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:09,080 INFO L85 PathProgramCache]: Analyzing trace with hash 602818777, now seen corresponding path program 1 times [2022-10-15 17:01:09,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:09,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958673565] [2022-10-15 17:01:09,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:09,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:09,241 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 17:01:09,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:09,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958673565] [2022-10-15 17:01:09,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958673565] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:01:09,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:01:09,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:01:09,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121066945] [2022-10-15 17:01:09,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:01:09,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:01:09,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:09,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:01:09,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:01:09,245 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 17:01:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:09,304 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-10-15 17:01:09,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 17:01:09,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-10-15 17:01:09,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:09,306 INFO L225 Difference]: With dead ends: 31 [2022-10-15 17:01:09,306 INFO L226 Difference]: Without dead ends: 31 [2022-10-15 17:01:09,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:01:09,308 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:09,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 29 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:01:09,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-15 17:01:09,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-10-15 17:01:09,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states 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 17:01:09,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-10-15 17:01:09,314 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 23 [2022-10-15 17:01:09,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:09,314 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-10-15 17:01:09,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 17:01:09,315 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-10-15 17:01:09,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 17:01:09,316 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:09,316 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] [2022-10-15 17:01:09,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:01:09,316 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:09,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:09,317 INFO L85 PathProgramCache]: Analyzing trace with hash -217919750, now seen corresponding path program 1 times [2022-10-15 17:01:09,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:09,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457224815] [2022-10-15 17:01:09,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:09,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:09,488 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 17:01:09,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:09,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457224815] [2022-10-15 17:01:09,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457224815] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:01:09,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:01:09,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-15 17:01:09,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915735324] [2022-10-15 17:01:09,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:01:09,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-15 17:01:09,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:09,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-15 17:01:09,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:01:09,492 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 17:01:09,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:09,548 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-10-15 17:01:09,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 17:01:09,549 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-10-15 17:01:09,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:09,550 INFO L225 Difference]: With dead ends: 27 [2022-10-15 17:01:09,550 INFO L226 Difference]: Without dead ends: 27 [2022-10-15 17:01:09,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:01:09,552 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 18 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:09,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 14 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:01:09,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-15 17:01:09,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-15 17:01:09,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states 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 17:01:09,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-10-15 17:01:09,557 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2022-10-15 17:01:09,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:09,558 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-10-15 17:01:09,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states 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 17:01:09,558 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-10-15 17:01:09,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-15 17:01:09,559 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:09,559 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] [2022-10-15 17:01:09,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:01:09,560 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:09,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:09,561 INFO L85 PathProgramCache]: Analyzing trace with hash 423767145, now seen corresponding path program 1 times [2022-10-15 17:01:09,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:09,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302395217] [2022-10-15 17:01:09,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:09,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:09,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:01:09,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:09,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302395217] [2022-10-15 17:01:09,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302395217] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:01:09,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:01:09,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-15 17:01:09,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913889902] [2022-10-15 17:01:09,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:01:09,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 17:01:09,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:09,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 17:01:09,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:01:09,725 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states 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 17:01:09,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:09,776 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-10-15 17:01:09,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 17:01:09,777 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2022-10-15 17:01:09,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:09,778 INFO L225 Difference]: With dead ends: 29 [2022-10-15 17:01:09,778 INFO L226 Difference]: Without dead ends: 29 [2022-10-15 17:01:09,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-15 17:01:09,780 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 17 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:09,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 15 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:01:09,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-15 17:01:09,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-10-15 17:01:09,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states 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 17:01:09,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-10-15 17:01:09,784 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 25 [2022-10-15 17:01:09,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:09,785 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-10-15 17:01:09,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states 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 17:01:09,785 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-10-15 17:01:09,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 17:01:09,786 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:09,787 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:01:09,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:01:09,787 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:09,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:09,788 INFO L85 PathProgramCache]: Analyzing trace with hash -875092666, now seen corresponding path program 1 times [2022-10-15 17:01:09,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:09,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322938147] [2022-10-15 17:01:09,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:09,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:09,943 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:01:09,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:09,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322938147] [2022-10-15 17:01:09,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322938147] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:01:09,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430621918] [2022-10-15 17:01:09,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:09,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:01:09,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:01:09,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:01:09,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:01:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:09,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 17:01:10,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:01:10,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:01:10,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:01:10,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:01:10,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430621918] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:01:10,335 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:01:10,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-10-15 17:01:10,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764466429] [2022-10-15 17:01:10,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:01:10,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-15 17:01:10,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:10,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-15 17:01:10,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-15 17:01:10,338 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 25 states, 25 states have (on average 2.12) internal successors, (53), 25 states have internal predecessors, (53), 0 states have call successors, (0), 0 states 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 17:01:10,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:10,447 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2022-10-15 17:01:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-15 17:01:10,448 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.12) internal successors, (53), 25 states have internal predecessors, (53), 0 states have call successors, (0), 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 27 [2022-10-15 17:01:10,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:10,449 INFO L225 Difference]: With dead ends: 53 [2022-10-15 17:01:10,449 INFO L226 Difference]: Without dead ends: 53 [2022-10-15 17:01:10,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-15 17:01:10,451 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 44 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:10,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 24 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:01:10,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-15 17:01:10,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-10-15 17:01:10,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.0384615384615385) internal successors, (54), 52 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 17:01:10,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2022-10-15 17:01:10,457 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 27 [2022-10-15 17:01:10,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:10,457 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2022-10-15 17:01:10,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.12) internal successors, (53), 25 states have internal predecessors, (53), 0 states have call successors, (0), 0 states 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 17:01:10,458 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2022-10-15 17:01:10,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-15 17:01:10,459 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:10,459 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 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 17:01:10,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 17:01:10,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-15 17:01:10,674 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:10,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:10,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1668395554, now seen corresponding path program 2 times [2022-10-15 17:01:10,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:10,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680697613] [2022-10-15 17:01:10,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:10,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:11,193 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 14 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:01:11,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:11,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680697613] [2022-10-15 17:01:11,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680697613] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:01:11,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514893871] [2022-10-15 17:01:11,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 17:01:11,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:01:11,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:01:11,195 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:01:11,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 17:01:11,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 17:01:11,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:01:11,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-15 17:01:11,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:01:11,356 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 14 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:01:11,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:01:12,155 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 14 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:01:12,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514893871] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:01:12,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:01:12,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-10-15 17:01:12,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654830788] [2022-10-15 17:01:12,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:01:12,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-15 17:01:12,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:12,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-15 17:01:12,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 17:01:12,160 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 states have internal predecessors, (101), 0 states have call successors, (0), 0 states 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 17:01:12,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:12,371 INFO L93 Difference]: Finished difference Result 101 states and 102 transitions. [2022-10-15 17:01:12,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-15 17:01:12,372 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 states have internal predecessors, (101), 0 states have call successors, (0), 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 51 [2022-10-15 17:01:12,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:12,373 INFO L225 Difference]: With dead ends: 101 [2022-10-15 17:01:12,373 INFO L226 Difference]: Without dead ends: 101 [2022-10-15 17:01:12,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 17:01:12,375 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 105 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:12,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 21 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:01:12,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-15 17:01:12,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-10-15 17:01:12,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.02) internal successors, (102), 100 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:01:12,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 102 transitions. [2022-10-15 17:01:12,384 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 102 transitions. Word has length 51 [2022-10-15 17:01:12,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:12,384 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 102 transitions. [2022-10-15 17:01:12,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 states have internal predecessors, (101), 0 states have call successors, (0), 0 states 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 17:01:12,385 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 102 transitions. [2022-10-15 17:01:12,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-15 17:01:12,387 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:12,388 INFO L195 NwaCegarLoop]: trace histogram [38, 37, 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 17:01:12,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 17:01:12,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 17:01:12,601 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:12,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:12,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1723682778, now seen corresponding path program 3 times [2022-10-15 17:01:12,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:12,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158050972] [2022-10-15 17:01:12,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:12,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 38 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:01:14,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:14,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158050972] [2022-10-15 17:01:14,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158050972] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:01:14,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5921782] [2022-10-15 17:01:14,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 17:01:14,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:01:14,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:01:14,658 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:01:14,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 17:01:14,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-15 17:01:14,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:01:14,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 17:01:14,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:01:14,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 111 proven. 1 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-10-15 17:01:14,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:01:14,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 111 proven. 1 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-10-15 17:01:14,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5921782] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:01:14,904 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:01:14,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 4, 4] total 53 [2022-10-15 17:01:14,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756866983] [2022-10-15 17:01:14,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:01:14,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-15 17:01:14,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:14,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-15 17:01:14,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-15 17:01:14,911 INFO L87 Difference]: Start difference. First operand 101 states and 102 transitions. Second operand has 53 states, 53 states have (on average 2.4150943396226414) internal successors, (128), 53 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 17:01:15,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:15,119 INFO L93 Difference]: Finished difference Result 108 states and 109 transitions. [2022-10-15 17:01:15,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-10-15 17:01:15,119 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.4150943396226414) internal successors, (128), 53 states have internal predecessors, (128), 0 states have call successors, (0), 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 99 [2022-10-15 17:01:15,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:15,122 INFO L225 Difference]: With dead ends: 108 [2022-10-15 17:01:15,122 INFO L226 Difference]: Without dead ends: 108 [2022-10-15 17:01:15,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-15 17:01:15,125 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 109 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:15,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 17 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:01:15,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-10-15 17:01:15,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2022-10-15 17:01:15,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.0186915887850467) internal successors, (109), 107 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 17:01:15,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 109 transitions. [2022-10-15 17:01:15,148 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 109 transitions. Word has length 99 [2022-10-15 17:01:15,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:15,150 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 109 transitions. [2022-10-15 17:01:15,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.4150943396226414) internal successors, (128), 53 states have internal predecessors, (128), 0 states have call successors, (0), 0 states 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 17:01:15,151 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 109 transitions. [2022-10-15 17:01:15,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-15 17:01:15,154 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:15,154 INFO L195 NwaCegarLoop]: trace histogram [42, 38, 4, 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 17:01:15,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 17:01:15,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:01:15,355 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:15,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:15,356 INFO L85 PathProgramCache]: Analyzing trace with hash -640925019, now seen corresponding path program 4 times [2022-10-15 17:01:15,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:15,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197827509] [2022-10-15 17:01:15,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:15,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:16,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 273 proven. 1482 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:01:16,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:16,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197827509] [2022-10-15 17:01:16,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197827509] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:01:16,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100376614] [2022-10-15 17:01:16,884 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 17:01:16,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:01:16,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:01:16,888 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:01:16,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 17:01:16,960 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 17:01:16,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:01:16,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-15 17:01:16,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:01:17,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 273 proven. 1482 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:01:17,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:01:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 273 proven. 1482 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:01:18,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100376614] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:01:18,383 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:01:18,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 53 [2022-10-15 17:01:18,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677214582] [2022-10-15 17:01:18,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:01:18,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-15 17:01:18,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:18,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-15 17:01:18,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-15 17:01:18,387 INFO L87 Difference]: Start difference. First operand 108 states and 109 transitions. Second operand has 53 states, 53 states have (on average 2.452830188679245) internal successors, (130), 53 states have internal predecessors, (130), 0 states have call successors, (0), 0 states 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 17:01:18,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:18,519 INFO L93 Difference]: Finished difference Result 114 states and 115 transitions. [2022-10-15 17:01:18,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-15 17:01:18,519 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.452830188679245) internal successors, (130), 53 states have internal predecessors, (130), 0 states have call successors, (0), 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 107 [2022-10-15 17:01:18,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:18,525 INFO L225 Difference]: With dead ends: 114 [2022-10-15 17:01:18,525 INFO L226 Difference]: Without dead ends: 114 [2022-10-15 17:01:18,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 165 SyntacticMatches, 46 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-15 17:01:18,529 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 21 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:18,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 30 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:01:18,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-15 17:01:18,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-10-15 17:01:18,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.0176991150442478) internal successors, (115), 113 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:01:18,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 115 transitions. [2022-10-15 17:01:18,541 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 115 transitions. Word has length 107 [2022-10-15 17:01:18,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:18,541 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 115 transitions. [2022-10-15 17:01:18,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.452830188679245) internal successors, (130), 53 states have internal predecessors, (130), 0 states have call successors, (0), 0 states 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 17:01:18,542 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 115 transitions. [2022-10-15 17:01:18,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-15 17:01:18,548 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:18,549 INFO L195 NwaCegarLoop]: trace histogram [45, 41, 4, 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 17:01:18,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-15 17:01:18,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:01:18,755 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:18,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:18,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1058630724, now seen corresponding path program 5 times [2022-10-15 17:01:18,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:18,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151420655] [2022-10-15 17:01:18,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:18,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:20,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 0 proven. 2025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:01:20,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:20,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151420655] [2022-10-15 17:01:20,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151420655] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:01:20,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759712176] [2022-10-15 17:01:20,750 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-15 17:01:20,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:01:20,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:01:20,751 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:01:20,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 17:01:20,871 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 46 check-sat command(s) [2022-10-15 17:01:20,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:01:20,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-15 17:01:20,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:01:21,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1035 proven. 484 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-10-15 17:01:21,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:01:23,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 1035 proven. 484 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-10-15 17:01:23,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759712176] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:01:23,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:01:23,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 25, 25] total 98 [2022-10-15 17:01:23,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579028230] [2022-10-15 17:01:23,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:01:23,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-10-15 17:01:23,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:23,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-10-15 17:01:23,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2022-10-15 17:01:23,527 INFO L87 Difference]: Start difference. First operand 114 states and 115 transitions. Second operand has 98 states, 98 states have (on average 2.2653061224489797) internal successors, (222), 98 states have internal predecessors, (222), 0 states have call successors, (0), 0 states 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 17:01:23,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:23,963 INFO L93 Difference]: Finished difference Result 198 states and 199 transitions. [2022-10-15 17:01:23,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-10-15 17:01:23,964 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 2.2653061224489797) internal successors, (222), 98 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-10-15 17:01:23,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:23,965 INFO L225 Difference]: With dead ends: 198 [2022-10-15 17:01:23,965 INFO L226 Difference]: Without dead ends: 198 [2022-10-15 17:01:23,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2022-10-15 17:01:23,969 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 129 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:23,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 23 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:01:23,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-10-15 17:01:23,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-10-15 17:01:23,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 1.0101522842639594) internal successors, (199), 197 states have internal predecessors, (199), 0 states have call successors, (0), 0 states 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 17:01:23,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 199 transitions. [2022-10-15 17:01:23,975 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 199 transitions. Word has length 113 [2022-10-15 17:01:23,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:23,976 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 199 transitions. [2022-10-15 17:01:23,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 2.2653061224489797) internal successors, (222), 98 states have internal predecessors, (222), 0 states have call successors, (0), 0 states 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 17:01:23,976 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 199 transitions. [2022-10-15 17:01:23,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-10-15 17:01:23,979 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:23,979 INFO L195 NwaCegarLoop]: trace histogram [87, 46, 41, 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 17:01:24,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 17:01:24,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 17:01:24,192 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:24,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:24,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1561171392, now seen corresponding path program 6 times [2022-10-15 17:01:24,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:24,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680189032] [2022-10-15 17:01:24,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:24,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:30,745 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 0 proven. 7569 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:01:30,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:30,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680189032] [2022-10-15 17:01:30,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680189032] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:01:30,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125630984] [2022-10-15 17:01:30,746 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-15 17:01:30,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:01:30,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:01:30,747 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:01:30,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 17:01:30,951 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 87 check-sat command(s) [2022-10-15 17:01:30,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:01:30,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-15 17:01:30,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:01:31,115 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 3813 proven. 2116 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2022-10-15 17:01:31,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:01:34,176 INFO L134 CoverageAnalysis]: Checked inductivity of 7569 backedges. 3813 proven. 2116 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2022-10-15 17:01:34,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125630984] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:01:34,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:01:34,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 49, 49] total 102 [2022-10-15 17:01:34,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797009642] [2022-10-15 17:01:34,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:01:34,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-10-15 17:01:34,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:34,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-10-15 17:01:34,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2022-10-15 17:01:34,183 INFO L87 Difference]: Start difference. First operand 198 states and 199 transitions. Second operand has 102 states, 102 states have (on average 2.2254901960784315) internal successors, (227), 102 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 17:01:34,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:34,604 INFO L93 Difference]: Finished difference Result 206 states and 207 transitions. [2022-10-15 17:01:34,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-10-15 17:01:34,605 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 2.2254901960784315) internal successors, (227), 102 states have internal predecessors, (227), 0 states have call successors, (0), 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 197 [2022-10-15 17:01:34,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:34,607 INFO L225 Difference]: With dead ends: 206 [2022-10-15 17:01:34,607 INFO L226 Difference]: Without dead ends: 206 [2022-10-15 17:01:34,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 347 SyntacticMatches, 44 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1078 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2022-10-15 17:01:34,611 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 122 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:34,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 17 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:01:34,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-10-15 17:01:34,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-10-15 17:01:34,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.0097560975609756) internal successors, (207), 205 states have internal predecessors, (207), 0 states have call successors, (0), 0 states 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 17:01:34,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 207 transitions. [2022-10-15 17:01:34,617 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 207 transitions. Word has length 197 [2022-10-15 17:01:34,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:34,617 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 207 transitions. [2022-10-15 17:01:34,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 2.2254901960784315) internal successors, (227), 102 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 17:01:34,618 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 207 transitions. [2022-10-15 17:01:34,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-10-15 17:01:34,620 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:34,620 INFO L195 NwaCegarLoop]: trace histogram [91, 50, 41, 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 17:01:34,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-15 17:01:34,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-15 17:01:34,837 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:34,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:34,838 INFO L85 PathProgramCache]: Analyzing trace with hash 782272296, now seen corresponding path program 7 times [2022-10-15 17:01:34,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:34,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951035500] [2022-10-15 17:01:34,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:34,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:37,696 INFO L134 CoverageAnalysis]: Checked inductivity of 8281 backedges. 0 proven. 6559 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-10-15 17:01:37,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:37,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951035500] [2022-10-15 17:01:37,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951035500] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:01:37,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101789596] [2022-10-15 17:01:37,697 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-15 17:01:37,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:01:37,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:01:37,698 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:01:37,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 17:01:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:37,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 105 conjunts are in the unsatisfiable core [2022-10-15 17:01:37,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:01:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 8281 backedges. 0 proven. 6559 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-10-15 17:01:38,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:01:39,146 INFO L134 CoverageAnalysis]: Checked inductivity of 8281 backedges. 0 proven. 6559 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-10-15 17:01:39,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101789596] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:01:39,147 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:01:39,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 55 [2022-10-15 17:01:39,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099618345] [2022-10-15 17:01:39,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:01:39,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-10-15 17:01:39,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:39,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-10-15 17:01:39,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=2862, Unknown=0, NotChecked=0, Total=2970 [2022-10-15 17:01:39,150 INFO L87 Difference]: Start difference. First operand 206 states and 207 transitions. Second operand has 55 states, 55 states have (on average 2.290909090909091) internal successors, (126), 55 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 17:01:40,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:40,441 INFO L93 Difference]: Finished difference Result 210 states and 211 transitions. [2022-10-15 17:01:40,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-10-15 17:01:40,442 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 2.290909090909091) internal successors, (126), 55 states have internal predecessors, (126), 0 states have call successors, (0), 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 205 [2022-10-15 17:01:40,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:40,444 INFO L225 Difference]: With dead ends: 210 [2022-10-15 17:01:40,445 INFO L226 Difference]: Without dead ends: 209 [2022-10-15 17:01:40,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 404 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=113, Invalid=2967, Unknown=0, NotChecked=0, Total=3080 [2022-10-15 17:01:40,447 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 2 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 2812 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 2812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:40,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3871 Invalid, 2812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-15 17:01:40,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-10-15 17:01:40,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 208. [2022-10-15 17:01:40,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.0096618357487923) internal successors, (209), 207 states have internal predecessors, (209), 0 states have call successors, (0), 0 states 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 17:01:40,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 209 transitions. [2022-10-15 17:01:40,465 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 209 transitions. Word has length 205 [2022-10-15 17:01:40,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:40,466 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 209 transitions. [2022-10-15 17:01:40,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 2.290909090909091) internal successors, (126), 55 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 17:01:40,467 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 209 transitions. [2022-10-15 17:01:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-10-15 17:01:40,469 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:01:40,470 INFO L195 NwaCegarLoop]: trace histogram [92, 51, 41, 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 17:01:40,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-15 17:01:40,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:01:40,684 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:01:40,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:01:40,685 INFO L85 PathProgramCache]: Analyzing trace with hash 136861218, now seen corresponding path program 8 times [2022-10-15 17:01:40,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:01:40,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495201620] [2022-10-15 17:01:40,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:01:40,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:01:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:01:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 6742 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2022-10-15 17:01:43,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:01:43,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495201620] [2022-10-15 17:01:43,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495201620] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:01:43,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:01:43,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-10-15 17:01:43,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594046468] [2022-10-15 17:01:43,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:01:43,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-15 17:01:43,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:01:43,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-15 17:01:43,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2022-10-15 17:01:43,018 INFO L87 Difference]: Start difference. First operand 208 states and 209 transitions. Second operand has 52 states, 52 states have (on average 2.423076923076923) internal successors, (126), 52 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 17:01:43,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:01:43,309 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2022-10-15 17:01:43,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-15 17:01:43,309 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.423076923076923) internal successors, (126), 52 states have internal predecessors, (126), 0 states have call successors, (0), 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 207 [2022-10-15 17:01:43,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:01:43,310 INFO L225 Difference]: With dead ends: 203 [2022-10-15 17:01:43,310 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 17:01:43,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2022-10-15 17:01:43,313 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:01:43,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:01:43,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 17:01:43,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 17:01:43,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states 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 17:01:43,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 17:01:43,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2022-10-15 17:01:43,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:01:43,316 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 17:01:43,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.423076923076923) internal successors, (126), 52 states have internal predecessors, (126), 0 states have call successors, (0), 0 states 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 17:01:43,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 17:01:43,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 17:01:43,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-15 17:01:43,322 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-15 17:01:43,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:01:43,327 INFO L444 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:01:43,332 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 17:01:43,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 05:01:43 BoogieIcfgContainer [2022-10-15 17:01:43,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 17:01:43,338 INFO L158 Benchmark]: Toolchain (without parser) took 37008.78ms. Allocated memory was 151.0MB in the beginning and 402.7MB in the end (delta: 251.7MB). Free memory was 124.1MB in the beginning and 277.2MB in the end (delta: -153.1MB). Peak memory consumption was 99.6MB. Max. memory is 8.0GB. [2022-10-15 17:01:43,338 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory was 121.0MB in the beginning and 121.0MB in the end (delta: 77.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 17:01:43,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.81ms. Allocated memory is still 151.0MB. Free memory was 123.8MB in the beginning and 112.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 17:01:43,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.74ms. Allocated memory is still 151.0MB. Free memory was 112.8MB in the beginning and 111.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 17:01:43,340 INFO L158 Benchmark]: Boogie Preprocessor took 24.15ms. Allocated memory is still 151.0MB. Free memory was 111.1MB in the beginning and 109.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 17:01:43,341 INFO L158 Benchmark]: RCFGBuilder took 552.71ms. Allocated memory is still 151.0MB. Free memory was 109.9MB in the beginning and 97.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-15 17:01:43,341 INFO L158 Benchmark]: TraceAbstraction took 36102.61ms. Allocated memory was 151.0MB in the beginning and 402.7MB in the end (delta: 251.7MB). Free memory was 97.0MB in the beginning and 277.2MB in the end (delta: -180.2MB). Peak memory consumption was 72.3MB. Max. memory is 8.0GB. [2022-10-15 17:01:43,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory was 121.0MB in the beginning and 121.0MB in the end (delta: 77.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 274.81ms. Allocated memory is still 151.0MB. Free memory was 123.8MB in the beginning and 112.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.74ms. Allocated memory is still 151.0MB. Free memory was 112.8MB in the beginning and 111.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.15ms. Allocated memory is still 151.0MB. Free memory was 111.1MB in the beginning and 109.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 552.71ms. Allocated memory is still 151.0MB. Free memory was 109.9MB in the beginning and 97.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 36102.61ms. Allocated memory was 151.0MB in the beginning and 402.7MB in the end (delta: 251.7MB). Free memory was 97.0MB in the beginning and 277.2MB in the end (delta: -180.2MB). Peak memory consumption was 72.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 96]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 11]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 36.0s, OverallIterations: 17, TraceHistogramMax: 92, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 629 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 629 mSDsluCounter, 4308 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3963 mSDsCounter, 960 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4869 IncrementalHoareTripleChecker+Invalid, 5829 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 960 mSolverCounterUnsat, 345 mSDtfsCounter, 4869 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2036 GetRequests, 1434 SyntacticMatches, 95 SemanticMatches, 507 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2521 ImplicationChecksByTransitivity, 17.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=16, InterpolantAutomatonStates: 536, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 28.6s InterpolantComputationTime, 1950 NumberOfCodeBlocks, 1878 NumberOfCodeBlocksAsserted, 160 NumberOfCheckSat, 2718 ConstructedInterpolants, 0 QuantifiedInterpolants, 9027 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1892 ConjunctsInSsa, 268 ConjunctsInUnsatCore, 31 InterpolantComputations, 10 PerfectInterpolantSequences, 31437/72314 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-15 17:01:43,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...