/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/recursive-simple/fibo_2calls_20-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:11:45,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:11:45,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:11:45,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:11:45,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:11:45,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:11:45,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:11:45,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:11:45,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:11:45,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:11:45,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:11:45,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:11:45,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:11:45,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:11:45,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:11:45,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:11:45,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:11:45,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:11:45,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:11:45,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:11:45,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:11:45,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:11:45,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:11:45,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:11:45,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:11:46,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:11:46,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:11:46,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:11:46,020 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 17:11:46,071 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:11:46,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:11:46,072 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:11:46,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:11:46,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:11:46,075 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:11:46,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:11:46,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:11:46,078 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:11:46,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:11:46,079 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:11:46,079 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:11:46,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:11:46,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:11:46,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:11:46,080 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:11:46,081 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:11:46,081 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:11:46,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:11:46,081 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:11:46,081 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:11:46,082 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:11:46,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:11:46,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:11:46,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:11:46,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:11:46,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:11:46,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:11:46,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:11:46,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:11:46,084 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:11:46,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:11:46,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:11:46,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:11:46,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:11:46,476 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:11:46,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_20-1.c [2022-10-15 17:11:46,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4390ba5ac/4d226b73b5d848c38622f8702e0edb49/FLAGad0a9ab1e [2022-10-15 17:11:47,203 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:11:47,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_20-1.c [2022-10-15 17:11:47,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4390ba5ac/4d226b73b5d848c38622f8702e0edb49/FLAGad0a9ab1e [2022-10-15 17:11:47,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4390ba5ac/4d226b73b5d848c38622f8702e0edb49 [2022-10-15 17:11:47,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:11:47,612 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:11:47,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:11:47,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:11:47,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:11:47,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f6b655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47, skipping insertion in model container [2022-10-15 17:11:47,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:11:47,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:11:47,804 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/recursive-simple/fibo_2calls_20-1.c[951,964] [2022-10-15 17:11:47,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:11:47,815 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:11:47,831 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/recursive-simple/fibo_2calls_20-1.c[951,964] [2022-10-15 17:11:47,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:11:47,844 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:11:47,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47 WrapperNode [2022-10-15 17:11:47,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:11:47,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:11:47,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:11:47,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:11:47,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,881 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-10-15 17:11:47,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:11:47,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:11:47,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:11:47,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:11:47,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,920 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:11:47,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:11:47,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:11:47,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:11:47,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47" (1/1) ... [2022-10-15 17:11:47,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:11:47,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:47,963 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 17:11:47,967 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 17:11:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:11:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:11:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2022-10-15 17:11:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2022-10-15 17:11:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2022-10-15 17:11:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2022-10-15 17:11:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:11:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:11:48,119 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:11:48,121 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:11:48,344 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:11:48,352 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:11:48,353 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:11:48,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:11:48 BoogieIcfgContainer [2022-10-15 17:11:48,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:11:48,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:11:48,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:11:48,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:11:48,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:11:47" (1/3) ... [2022-10-15 17:11:48,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e6941a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:11:48, skipping insertion in model container [2022-10-15 17:11:48,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:11:47" (2/3) ... [2022-10-15 17:11:48,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e6941a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:11:48, skipping insertion in model container [2022-10-15 17:11:48,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:11:48" (3/3) ... [2022-10-15 17:11:48,367 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_20-1.c [2022-10-15 17:11:48,390 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:11:48,390 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:11:48,460 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:11:48,485 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;@62331211, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:11:48,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:11:48,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-15 17:11:48,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:11:48,505 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:48,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:48,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:48,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:48,523 INFO L85 PathProgramCache]: Analyzing trace with hash -511770027, now seen corresponding path program 1 times [2022-10-15 17:11:48,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:48,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773581921] [2022-10-15 17:11:48,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:48,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:48,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:48,935 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 17:11:48,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:48,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773581921] [2022-10-15 17:11:48,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773581921] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:11:48,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:11:48,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:11:48,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441004901] [2022-10-15 17:11:48,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:11:48,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:11:48,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:48,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:11:48,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:11:48,982 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:11:49,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:49,038 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2022-10-15 17:11:49,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:11:49,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-10-15 17:11:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:49,052 INFO L225 Difference]: With dead ends: 39 [2022-10-15 17:11:49,052 INFO L226 Difference]: Without dead ends: 35 [2022-10-15 17:11:49,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:11:49,060 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:49,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 127 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:11:49,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-15 17:11:49,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2022-10-15 17:11:49,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-15 17:11:49,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2022-10-15 17:11:49,111 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 10 [2022-10-15 17:11:49,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:49,111 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2022-10-15 17:11:49,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:11:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2022-10-15 17:11:49,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 17:11:49,114 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:49,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:49,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:11:49,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:49,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:49,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1315003323, now seen corresponding path program 1 times [2022-10-15 17:11:49,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:49,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879475600] [2022-10-15 17:11:49,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:49,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:49,165 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 17:11:49,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:49,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879475600] [2022-10-15 17:11:49,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879475600] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:11:49,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:11:49,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:11:49,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831891214] [2022-10-15 17:11:49,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:11:49,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:11:49,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:49,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:11:49,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:11:49,171 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:11:49,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:49,182 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-10-15 17:11:49,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:11:49,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-10-15 17:11:49,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:49,184 INFO L225 Difference]: With dead ends: 31 [2022-10-15 17:11:49,184 INFO L226 Difference]: Without dead ends: 27 [2022-10-15 17:11:49,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 17:11:49,187 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 2 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:49,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 57 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:11:49,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-15 17:11:49,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-15 17:11:49,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-10-15 17:11:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2022-10-15 17:11:49,200 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2022-10-15 17:11:49,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:49,201 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-10-15 17:11:49,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:11:49,201 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-10-15 17:11:49,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 17:11:49,202 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:49,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:49,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:11:49,203 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:49,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:49,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2030187948, now seen corresponding path program 1 times [2022-10-15 17:11:49,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:49,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622175327] [2022-10-15 17:11:49,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:49,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:49,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:49,324 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 17:11:49,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:49,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622175327] [2022-10-15 17:11:49,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622175327] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:11:49,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:11:49,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:11:49,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815856748] [2022-10-15 17:11:49,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:11:49,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:11:49,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:49,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:11:49,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:11:49,329 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:11:49,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:49,386 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-10-15 17:11:49,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:11:49,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-10-15 17:11:49,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:49,390 INFO L225 Difference]: With dead ends: 31 [2022-10-15 17:11:49,390 INFO L226 Difference]: Without dead ends: 29 [2022-10-15 17:11:49,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:11:49,397 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:49,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:11:49,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-15 17:11:49,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-10-15 17:11:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-10-15 17:11:49,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2022-10-15 17:11:49,421 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2022-10-15 17:11:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:49,422 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2022-10-15 17:11:49,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 17:11:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-10-15 17:11:49,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 17:11:49,424 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:49,424 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:49,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:11:49,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:49,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:49,428 INFO L85 PathProgramCache]: Analyzing trace with hash 610996755, now seen corresponding path program 1 times [2022-10-15 17:11:49,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:49,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716146511] [2022-10-15 17:11:49,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:49,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:49,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:49,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:49,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 17:11:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:11:49,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:49,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716146511] [2022-10-15 17:11:49,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716146511] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:49,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099715907] [2022-10-15 17:11:49,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:49,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:49,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:49,657 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 17:11:49,674 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 17:11:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:49,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:11:49,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:49,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:11:49,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:11:50,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099715907] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:50,189 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:50,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2022-10-15 17:11:50,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892321693] [2022-10-15 17:11:50,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:50,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 17:11:50,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:50,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 17:11:50,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:11:50,192 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-15 17:11:50,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:50,371 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-10-15 17:11:50,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:11:50,372 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) Word has length 23 [2022-10-15 17:11:50,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:50,373 INFO L225 Difference]: With dead ends: 31 [2022-10-15 17:11:50,374 INFO L226 Difference]: Without dead ends: 31 [2022-10-15 17:11:50,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-10-15 17:11:50,376 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 51 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:50,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 68 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:11:50,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-15 17:11:50,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-10-15 17:11:50,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-15 17:11:50,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2022-10-15 17:11:50,385 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 23 [2022-10-15 17:11:50,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:50,385 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2022-10-15 17:11:50,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-15 17:11:50,386 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2022-10-15 17:11:50,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 17:11:50,387 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:50,388 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:50,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 17:11:50,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:50,602 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:50,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:50,603 INFO L85 PathProgramCache]: Analyzing trace with hash 2035188206, now seen corresponding path program 1 times [2022-10-15 17:11:50,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:50,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326790840] [2022-10-15 17:11:50,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:50,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:50,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:50,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:50,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:11:50,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:50,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326790840] [2022-10-15 17:11:50,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326790840] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:50,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294820914] [2022-10-15 17:11:50,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:50,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:50,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:50,801 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 17:11:50,812 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 17:11:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:50,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 17:11:50,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:11:50,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:51,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:11:51,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294820914] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:51,080 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:51,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2022-10-15 17:11:51,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036139729] [2022-10-15 17:11:51,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:51,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 17:11:51,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:51,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 17:11:51,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-10-15 17:11:51,083 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-15 17:11:51,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:51,263 INFO L93 Difference]: Finished difference Result 47 states and 67 transitions. [2022-10-15 17:11:51,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:11:51,263 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) Word has length 24 [2022-10-15 17:11:51,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:51,266 INFO L225 Difference]: With dead ends: 47 [2022-10-15 17:11:51,266 INFO L226 Difference]: Without dead ends: 47 [2022-10-15 17:11:51,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-10-15 17:11:51,268 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 29 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:51,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 101 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:11:51,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-15 17:11:51,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2022-10-15 17:11:51,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2022-10-15 17:11:51,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 62 transitions. [2022-10-15 17:11:51,279 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 62 transitions. Word has length 24 [2022-10-15 17:11:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:51,280 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 62 transitions. [2022-10-15 17:11:51,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-15 17:11:51,281 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2022-10-15 17:11:51,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-15 17:11:51,282 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:51,283 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:51,320 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 17:11:51,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:51,498 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:51,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:51,501 INFO L85 PathProgramCache]: Analyzing trace with hash 716039159, now seen corresponding path program 1 times [2022-10-15 17:11:51,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:51,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760348295] [2022-10-15 17:11:51,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:51,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:51,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:51,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:51,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 17:11:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:51,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 17:11:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:51,695 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:11:51,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:51,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760348295] [2022-10-15 17:11:51,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760348295] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:51,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334473837] [2022-10-15 17:11:51,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:51,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:51,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:51,698 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 17:11:51,706 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 17:11:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:51,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:11:51,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:51,827 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:11:51,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:52,136 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:11:52,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334473837] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:52,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:52,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 15 [2022-10-15 17:11:52,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56634359] [2022-10-15 17:11:52,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:52,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-15 17:11:52,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:52,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-15 17:11:52,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-10-15 17:11:52,140 INFO L87 Difference]: Start difference. First operand 45 states and 62 transitions. Second operand has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) [2022-10-15 17:11:52,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:52,379 INFO L93 Difference]: Finished difference Result 63 states and 92 transitions. [2022-10-15 17:11:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 17:11:52,380 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) Word has length 36 [2022-10-15 17:11:52,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:52,388 INFO L225 Difference]: With dead ends: 63 [2022-10-15 17:11:52,388 INFO L226 Difference]: Without dead ends: 63 [2022-10-15 17:11:52,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2022-10-15 17:11:52,392 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 57 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:52,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 93 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:11:52,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-15 17:11:52,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-10-15 17:11:52,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 44 states have internal predecessors, (51), 12 states have call successors, (12), 5 states have call predecessors, (12), 9 states have return successors, (29), 13 states have call predecessors, (29), 12 states have call successors, (29) [2022-10-15 17:11:52,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 92 transitions. [2022-10-15 17:11:52,424 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 92 transitions. Word has length 36 [2022-10-15 17:11:52,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:52,425 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 92 transitions. [2022-10-15 17:11:52,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) [2022-10-15 17:11:52,425 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 92 transitions. [2022-10-15 17:11:52,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 17:11:52,431 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:52,431 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:52,457 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 17:11:52,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:52,637 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:52,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:52,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1375469090, now seen corresponding path program 1 times [2022-10-15 17:11:52,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:52,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896640655] [2022-10-15 17:11:52,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:52,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:52,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:52,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:52,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:52,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:52,827 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 17:11:52,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:52,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896640655] [2022-10-15 17:11:52,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896640655] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:52,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364204046] [2022-10-15 17:11:52,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:52,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:52,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:52,829 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 17:11:52,850 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 17:11:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:52,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:11:52,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:11:52,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:53,288 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:11:53,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364204046] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:53,289 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:53,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2022-10-15 17:11:53,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469685524] [2022-10-15 17:11:53,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:53,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 17:11:53,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:53,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 17:11:53,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-10-15 17:11:53,296 INFO L87 Difference]: Start difference. First operand 63 states and 92 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2022-10-15 17:11:53,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:53,698 INFO L93 Difference]: Finished difference Result 117 states and 195 transitions. [2022-10-15 17:11:53,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 17:11:53,699 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) Word has length 37 [2022-10-15 17:11:53,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:53,701 INFO L225 Difference]: With dead ends: 117 [2022-10-15 17:11:53,702 INFO L226 Difference]: Without dead ends: 117 [2022-10-15 17:11:53,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 78 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2022-10-15 17:11:53,703 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 53 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:53,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 204 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:11:53,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-10-15 17:11:53,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 103. [2022-10-15 17:11:53,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 69 states have internal predecessors, (80), 21 states have call successors, (21), 7 states have call predecessors, (21), 15 states have return successors, (65), 26 states have call predecessors, (65), 21 states have call successors, (65) [2022-10-15 17:11:53,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 166 transitions. [2022-10-15 17:11:53,723 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 166 transitions. Word has length 37 [2022-10-15 17:11:53,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:53,723 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 166 transitions. [2022-10-15 17:11:53,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2022-10-15 17:11:53,724 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 166 transitions. [2022-10-15 17:11:53,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-15 17:11:53,728 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:53,728 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:53,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 17:11:53,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:53,944 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:53,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:53,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1808172135, now seen corresponding path program 1 times [2022-10-15 17:11:53,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:53,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687405520] [2022-10-15 17:11:53,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:53,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 17:11:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,258 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-15 17:11:54,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:54,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687405520] [2022-10-15 17:11:54,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687405520] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:54,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516066682] [2022-10-15 17:11:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:54,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:54,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:54,260 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 17:11:54,275 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 17:11:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:54,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-15 17:11:54,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-15 17:11:54,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:54,962 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 17:11:54,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516066682] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:54,962 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:54,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 20 [2022-10-15 17:11:54,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136697001] [2022-10-15 17:11:54,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:54,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-15 17:11:54,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:54,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-15 17:11:54,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-10-15 17:11:54,965 INFO L87 Difference]: Start difference. First operand 103 states and 166 transitions. Second operand has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) [2022-10-15 17:11:55,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:55,453 INFO L93 Difference]: Finished difference Result 155 states and 272 transitions. [2022-10-15 17:11:55,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-15 17:11:55,454 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) Word has length 51 [2022-10-15 17:11:55,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:55,456 INFO L225 Difference]: With dead ends: 155 [2022-10-15 17:11:55,457 INFO L226 Difference]: Without dead ends: 155 [2022-10-15 17:11:55,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 110 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2022-10-15 17:11:55,458 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 76 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:55,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 203 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:11:55,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-10-15 17:11:55,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 109. [2022-10-15 17:11:55,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 72 states have internal predecessors, (87), 24 states have call successors, (24), 9 states have call predecessors, (24), 13 states have return successors, (66), 27 states have call predecessors, (66), 24 states have call successors, (66) [2022-10-15 17:11:55,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 177 transitions. [2022-10-15 17:11:55,481 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 177 transitions. Word has length 51 [2022-10-15 17:11:55,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:55,481 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 177 transitions. [2022-10-15 17:11:55,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) [2022-10-15 17:11:55,482 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 177 transitions. [2022-10-15 17:11:55,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:11:55,487 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:55,487 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:55,528 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 17:11:55,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:55,701 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:55,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:55,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1122052341, now seen corresponding path program 1 times [2022-10-15 17:11:55,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:55,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016685198] [2022-10-15 17:11:55,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:55,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:55,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:55,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:55,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:55,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:56,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:56,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:56,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:56,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:56,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-15 17:11:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:56,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:56,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:56,056 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 39 proven. 38 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-15 17:11:56,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:56,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016685198] [2022-10-15 17:11:56,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016685198] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:56,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306984458] [2022-10-15 17:11:56,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:56,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:56,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:56,058 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 17:11:56,074 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 17:11:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:56,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 17:11:56,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:56,238 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 12 proven. 68 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-15 17:11:56,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:11:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-10-15 17:11:57,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306984458] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:11:57,052 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:11:57,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 24 [2022-10-15 17:11:57,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182745575] [2022-10-15 17:11:57,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:11:57,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-15 17:11:57,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:11:57,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-15 17:11:57,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2022-10-15 17:11:57,055 INFO L87 Difference]: Start difference. First operand 109 states and 177 transitions. Second operand has 24 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 24 states have internal predecessors, (74), 18 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (25), 11 states have call predecessors, (25), 18 states have call successors, (25) [2022-10-15 17:11:57,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:11:57,528 INFO L93 Difference]: Finished difference Result 137 states and 209 transitions. [2022-10-15 17:11:57,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-15 17:11:57,528 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 24 states have internal predecessors, (74), 18 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (25), 11 states have call predecessors, (25), 18 states have call successors, (25) Word has length 79 [2022-10-15 17:11:57,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:11:57,530 INFO L225 Difference]: With dead ends: 137 [2022-10-15 17:11:57,530 INFO L226 Difference]: Without dead ends: 107 [2022-10-15 17:11:57,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 166 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2022-10-15 17:11:57,532 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 100 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:11:57,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 189 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:11:57,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-10-15 17:11:57,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 84. [2022-10-15 17:11:57,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 58 states have internal predecessors, (67), 14 states have call successors, (14), 8 states have call predecessors, (14), 12 states have return successors, (35), 17 states have call predecessors, (35), 14 states have call successors, (35) [2022-10-15 17:11:57,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2022-10-15 17:11:57,543 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 79 [2022-10-15 17:11:57,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:11:57,543 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 116 transitions. [2022-10-15 17:11:57,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 24 states have internal predecessors, (74), 18 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (25), 11 states have call predecessors, (25), 18 states have call successors, (25) [2022-10-15 17:11:57,544 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2022-10-15 17:11:57,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-15 17:11:57,549 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:11:57,550 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:11:57,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 17:11:57,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:57,765 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:11:57,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:11:57,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1844874843, now seen corresponding path program 1 times [2022-10-15 17:11:57,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:11:57,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230510461] [2022-10-15 17:11:57,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:57,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:11:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:11:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-15 17:11:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:11:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-15 17:11:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:11:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:11:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:11:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 73 proven. 135 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2022-10-15 17:11:58,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:11:58,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230510461] [2022-10-15 17:11:58,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230510461] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:11:58,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134212489] [2022-10-15 17:11:58,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:11:58,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:11:58,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:11:58,537 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 17:11:58,559 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 17:11:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:11:58,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-15 17:11:58,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:11:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 36 proven. 211 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2022-10-15 17:11:58,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 36 proven. 227 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-10-15 17:12:00,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134212489] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:00,029 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:00,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 15] total 26 [2022-10-15 17:12:00,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404297120] [2022-10-15 17:12:00,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:00,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-15 17:12:00,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:00,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-15 17:12:00,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2022-10-15 17:12:00,032 INFO L87 Difference]: Start difference. First operand 84 states and 116 transitions. Second operand has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 26 states have internal predecessors, (82), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) [2022-10-15 17:12:00,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:00,659 INFO L93 Difference]: Finished difference Result 140 states and 216 transitions. [2022-10-15 17:12:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-15 17:12:00,660 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 26 states have internal predecessors, (82), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) Word has length 148 [2022-10-15 17:12:00,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:00,662 INFO L225 Difference]: With dead ends: 140 [2022-10-15 17:12:00,662 INFO L226 Difference]: Without dead ends: 134 [2022-10-15 17:12:00,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 320 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=275, Invalid=1285, Unknown=0, NotChecked=0, Total=1560 [2022-10-15 17:12:00,664 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 105 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:00,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 238 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:12:00,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-10-15 17:12:00,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 114. [2022-10-15 17:12:00,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 78 states have internal predecessors, (93), 20 states have call successors, (20), 11 states have call predecessors, (20), 16 states have return successors, (56), 24 states have call predecessors, (56), 20 states have call successors, (56) [2022-10-15 17:12:00,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 169 transitions. [2022-10-15 17:12:00,677 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 169 transitions. Word has length 148 [2022-10-15 17:12:00,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:00,678 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 169 transitions. [2022-10-15 17:12:00,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 26 states have internal predecessors, (82), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) [2022-10-15 17:12:00,678 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 169 transitions. [2022-10-15 17:12:00,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-10-15 17:12:00,681 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:00,682 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 15, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:00,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 17:12:00,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:00,898 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:00,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:00,900 INFO L85 PathProgramCache]: Analyzing trace with hash -776511890, now seen corresponding path program 1 times [2022-10-15 17:12:00,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:00,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270696571] [2022-10-15 17:12:00,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:00,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:01,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-15 17:12:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:02,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-15 17:12:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 179 proven. 311 refuted. 0 times theorem prover too weak. 1290 trivial. 0 not checked. [2022-10-15 17:12:02,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:02,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270696571] [2022-10-15 17:12:02,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270696571] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:02,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355253274] [2022-10-15 17:12:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:02,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:02,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:02,174 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:12:02,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 17:12:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:02,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 17:12:02,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:02,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 89 proven. 482 refuted. 0 times theorem prover too weak. 1209 trivial. 0 not checked. [2022-10-15 17:12:02,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:04,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1780 backedges. 89 proven. 506 refuted. 0 times theorem prover too weak. 1185 trivial. 0 not checked. [2022-10-15 17:12:04,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355253274] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:04,329 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:04,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 17] total 28 [2022-10-15 17:12:04,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38448245] [2022-10-15 17:12:04,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:04,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-15 17:12:04,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:04,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-15 17:12:04,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2022-10-15 17:12:04,332 INFO L87 Difference]: Start difference. First operand 114 states and 169 transitions. Second operand has 28 states, 26 states have (on average 3.5) internal successors, (91), 28 states have internal predecessors, (91), 22 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (37), 14 states have call predecessors, (37), 22 states have call successors, (37) [2022-10-15 17:12:05,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:05,046 INFO L93 Difference]: Finished difference Result 156 states and 244 transitions. [2022-10-15 17:12:05,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-15 17:12:05,047 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 3.5) internal successors, (91), 28 states have internal predecessors, (91), 22 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (37), 14 states have call predecessors, (37), 22 states have call successors, (37) Word has length 255 [2022-10-15 17:12:05,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:05,050 INFO L225 Difference]: With dead ends: 156 [2022-10-15 17:12:05,050 INFO L226 Difference]: Without dead ends: 155 [2022-10-15 17:12:05,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 563 SyntacticMatches, 7 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=342, Invalid=1638, Unknown=0, NotChecked=0, Total=1980 [2022-10-15 17:12:05,052 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 101 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:05,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 276 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:12:05,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-10-15 17:12:05,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 145. [2022-10-15 17:12:05,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 101 states have (on average 1.2376237623762376) internal successors, (125), 99 states have internal predecessors, (125), 26 states have call successors, (26), 18 states have call predecessors, (26), 17 states have return successors, (73), 27 states have call predecessors, (73), 26 states have call successors, (73) [2022-10-15 17:12:05,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 224 transitions. [2022-10-15 17:12:05,072 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 224 transitions. Word has length 255 [2022-10-15 17:12:05,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:05,073 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 224 transitions. [2022-10-15 17:12:05,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 3.5) internal successors, (91), 28 states have internal predecessors, (91), 22 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (37), 14 states have call predecessors, (37), 22 states have call successors, (37) [2022-10-15 17:12:05,073 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 224 transitions. [2022-10-15 17:12:05,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-10-15 17:12:05,081 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:05,081 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 23, 23, 21, 20, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 10, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:05,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 17:12:05,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 17:12:05,283 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:05,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:05,285 INFO L85 PathProgramCache]: Analyzing trace with hash -184807700, now seen corresponding path program 2 times [2022-10-15 17:12:05,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:05,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358857436] [2022-10-15 17:12:05,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:05,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:05,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-15 17:12:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-15 17:12:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-10-15 17:12:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:07,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3244 backedges. 239 proven. 509 refuted. 0 times theorem prover too weak. 2496 trivial. 0 not checked. [2022-10-15 17:12:07,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:07,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358857436] [2022-10-15 17:12:07,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358857436] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:07,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623037046] [2022-10-15 17:12:07,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 17:12:07,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:07,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:07,154 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:12:07,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 17:12:07,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 17:12:07,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:12:07,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-15 17:12:07,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:07,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3244 backedges. 133 proven. 782 refuted. 0 times theorem prover too weak. 2329 trivial. 0 not checked. [2022-10-15 17:12:07,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3244 backedges. 133 proven. 815 refuted. 0 times theorem prover too weak. 2296 trivial. 0 not checked. [2022-10-15 17:12:09,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623037046] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:09,998 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:09,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 19] total 30 [2022-10-15 17:12:09,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291638542] [2022-10-15 17:12:09,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:10,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-15 17:12:10,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:10,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-15 17:12:10,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=736, Unknown=0, NotChecked=0, Total=870 [2022-10-15 17:12:10,002 INFO L87 Difference]: Start difference. First operand 145 states and 224 transitions. Second operand has 30 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 30 states have internal predecessors, (97), 24 states have call successors, (30), 1 states have call predecessors, (30), 12 states have return successors, (40), 15 states have call predecessors, (40), 24 states have call successors, (40) [2022-10-15 17:12:10,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:10,870 INFO L93 Difference]: Finished difference Result 199 states and 320 transitions. [2022-10-15 17:12:10,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-15 17:12:10,872 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 30 states have internal predecessors, (97), 24 states have call successors, (30), 1 states have call predecessors, (30), 12 states have return successors, (40), 15 states have call predecessors, (40), 24 states have call successors, (40) Word has length 339 [2022-10-15 17:12:10,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:10,875 INFO L225 Difference]: With dead ends: 199 [2022-10-15 17:12:10,875 INFO L226 Difference]: Without dead ends: 197 [2022-10-15 17:12:10,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 753 SyntacticMatches, 8 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=406, Invalid=2044, Unknown=0, NotChecked=0, Total=2450 [2022-10-15 17:12:10,877 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 144 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:10,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 250 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:12:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-10-15 17:12:10,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 173. [2022-10-15 17:12:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 122 states have (on average 1.2131147540983607) internal successors, (148), 118 states have internal predecessors, (148), 32 states have call successors, (32), 24 states have call predecessors, (32), 18 states have return successors, (92), 30 states have call predecessors, (92), 32 states have call successors, (92) [2022-10-15 17:12:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 272 transitions. [2022-10-15 17:12:10,893 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 272 transitions. Word has length 339 [2022-10-15 17:12:10,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:10,893 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 272 transitions. [2022-10-15 17:12:10,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 3.4642857142857144) internal successors, (97), 30 states have internal predecessors, (97), 24 states have call successors, (30), 1 states have call predecessors, (30), 12 states have return successors, (40), 15 states have call predecessors, (40), 24 states have call successors, (40) [2022-10-15 17:12:10,894 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 272 transitions. [2022-10-15 17:12:10,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2022-10-15 17:12:10,908 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:10,909 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 43, 43, 36, 35, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 15, 13, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:10,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 17:12:11,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:11,125 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:11,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:11,126 INFO L85 PathProgramCache]: Analyzing trace with hash -340826443, now seen corresponding path program 3 times [2022-10-15 17:12:11,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:11,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038764383] [2022-10-15 17:12:11,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:11,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:12,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:13,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-15 17:12:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-15 17:12:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-15 17:12:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-10-15 17:12:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:14,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:15,197 INFO L134 CoverageAnalysis]: Checked inductivity of 10385 backedges. 1639 proven. 1149 refuted. 0 times theorem prover too weak. 7597 trivial. 0 not checked. [2022-10-15 17:12:15,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:15,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038764383] [2022-10-15 17:12:15,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038764383] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:15,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480909833] [2022-10-15 17:12:15,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 17:12:15,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:15,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:15,200 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:12:15,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 17:12:15,367 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-15 17:12:15,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:12:15,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 17:12:15,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 10385 backedges. 932 proven. 138 refuted. 0 times theorem prover too weak. 9315 trivial. 0 not checked. [2022-10-15 17:12:15,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:17,099 INFO L134 CoverageAnalysis]: Checked inductivity of 10385 backedges. 934 proven. 146 refuted. 0 times theorem prover too weak. 9305 trivial. 0 not checked. [2022-10-15 17:12:17,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480909833] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:17,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:17,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 10, 13] total 39 [2022-10-15 17:12:17,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447036165] [2022-10-15 17:12:17,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:17,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-10-15 17:12:17,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:17,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-10-15 17:12:17,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1280, Unknown=0, NotChecked=0, Total=1482 [2022-10-15 17:12:17,105 INFO L87 Difference]: Start difference. First operand 173 states and 272 transitions. Second operand has 39 states, 37 states have (on average 2.8378378378378377) internal successors, (105), 39 states have internal predecessors, (105), 23 states have call successors, (36), 1 states have call predecessors, (36), 17 states have return successors, (47), 33 states have call predecessors, (47), 23 states have call successors, (47) [2022-10-15 17:12:18,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:18,250 INFO L93 Difference]: Finished difference Result 256 states and 389 transitions. [2022-10-15 17:12:18,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-10-15 17:12:18,251 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 37 states have (on average 2.8378378378378377) internal successors, (105), 39 states have internal predecessors, (105), 23 states have call successors, (36), 1 states have call predecessors, (36), 17 states have return successors, (47), 33 states have call predecessors, (47), 23 states have call successors, (47) Word has length 597 [2022-10-15 17:12:18,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:18,255 INFO L225 Difference]: With dead ends: 256 [2022-10-15 17:12:18,256 INFO L226 Difference]: Without dead ends: 251 [2022-10-15 17:12:18,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 1351 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1370 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=528, Invalid=3378, Unknown=0, NotChecked=0, Total=3906 [2022-10-15 17:12:18,258 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 160 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:18,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 470 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 17:12:18,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-10-15 17:12:18,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 229. [2022-10-15 17:12:18,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 165 states have (on average 1.103030303030303) internal successors, (182), 157 states have internal predecessors, (182), 45 states have call successors, (45), 39 states have call predecessors, (45), 18 states have return successors, (103), 32 states have call predecessors, (103), 45 states have call successors, (103) [2022-10-15 17:12:18,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 330 transitions. [2022-10-15 17:12:18,275 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 330 transitions. Word has length 597 [2022-10-15 17:12:18,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:18,276 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 330 transitions. [2022-10-15 17:12:18,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 37 states have (on average 2.8378378378378377) internal successors, (105), 39 states have internal predecessors, (105), 23 states have call successors, (36), 1 states have call predecessors, (36), 17 states have return successors, (47), 33 states have call predecessors, (47), 23 states have call successors, (47) [2022-10-15 17:12:18,277 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 330 transitions. [2022-10-15 17:12:18,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2022-10-15 17:12:18,308 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:18,309 INFO L195 NwaCegarLoop]: trace histogram [62, 62, 61, 61, 50, 49, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 20, 18, 12, 12, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:18,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 17:12:18,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-15 17:12:18,524 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:18,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:18,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1439681335, now seen corresponding path program 4 times [2022-10-15 17:12:18,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:18,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378564212] [2022-10-15 17:12:18,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:18,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:21,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:21,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-15 17:12:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-10-15 17:12:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-10-15 17:12:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:22,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-15 17:12:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-10-15 17:12:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 17:12:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-15 17:12:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 17:12:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 17:12:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 17:12:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 17:12:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 20885 backedges. 649 proven. 2470 refuted. 0 times theorem prover too weak. 17766 trivial. 0 not checked. [2022-10-15 17:12:23,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:12:23,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378564212] [2022-10-15 17:12:23,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378564212] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:12:23,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336131956] [2022-10-15 17:12:23,300 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 17:12:23,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:12:23,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:12:23,302 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:12:23,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-15 17:12:23,622 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 17:12:23,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 17:12:23,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 1494 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-15 17:12:23,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:12:23,850 INFO L134 CoverageAnalysis]: Checked inductivity of 20885 backedges. 9056 proven. 427 refuted. 0 times theorem prover too weak. 11402 trivial. 0 not checked. [2022-10-15 17:12:23,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:12:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 20885 backedges. 615 proven. 3051 refuted. 0 times theorem prover too weak. 17219 trivial. 0 not checked. [2022-10-15 17:12:27,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336131956] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:12:27,980 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:12:27,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 23] total 37 [2022-10-15 17:12:27,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888714148] [2022-10-15 17:12:27,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:12:27,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-15 17:12:27,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:12:27,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-15 17:12:27,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1131, Unknown=0, NotChecked=0, Total=1332 [2022-10-15 17:12:27,985 INFO L87 Difference]: Start difference. First operand 229 states and 330 transitions. Second operand has 37 states, 37 states have (on average 3.4054054054054053) internal successors, (126), 37 states have internal predecessors, (126), 31 states have call successors, (42), 2 states have call predecessors, (42), 13 states have return successors, (53), 19 states have call predecessors, (53), 31 states have call successors, (53) [2022-10-15 17:12:28,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:12:28,791 INFO L93 Difference]: Finished difference Result 253 states and 368 transitions. [2022-10-15 17:12:28,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-15 17:12:28,793 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.4054054054054053) internal successors, (126), 37 states have internal predecessors, (126), 31 states have call successors, (42), 2 states have call predecessors, (42), 13 states have return successors, (53), 19 states have call predecessors, (53), 31 states have call successors, (53) Word has length 841 [2022-10-15 17:12:28,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:12:28,798 INFO L225 Difference]: With dead ends: 253 [2022-10-15 17:12:28,798 INFO L226 Difference]: Without dead ends: 253 [2022-10-15 17:12:28,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1960 GetRequests, 1901 SyntacticMatches, 11 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=400, Invalid=2050, Unknown=0, NotChecked=0, Total=2450 [2022-10-15 17:12:28,800 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 99 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:12:28,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 452 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 17:12:28,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-10-15 17:12:28,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 237. [2022-10-15 17:12:28,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 171 states have (on average 1.0818713450292399) internal successors, (185), 164 states have internal predecessors, (185), 47 states have call successors, (47), 41 states have call predecessors, (47), 18 states have return successors, (107), 31 states have call predecessors, (107), 47 states have call successors, (107) [2022-10-15 17:12:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 339 transitions. [2022-10-15 17:12:28,825 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 339 transitions. Word has length 841 [2022-10-15 17:12:28,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:12:28,827 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 339 transitions. [2022-10-15 17:12:28,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.4054054054054053) internal successors, (126), 37 states have internal predecessors, (126), 31 states have call successors, (42), 2 states have call predecessors, (42), 13 states have return successors, (53), 19 states have call predecessors, (53), 31 states have call successors, (53) [2022-10-15 17:12:28,828 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 339 transitions. [2022-10-15 17:12:28,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1673 [2022-10-15 17:12:28,853 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:12:28,854 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 121, 121, 99, 99, 62, 62, 62, 62, 62, 62, 62, 60, 60, 60, 60, 60, 60, 60, 39, 37, 25, 22, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:12:28,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-15 17:12:29,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 17:12:29,069 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:12:29,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:12:29,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1431153749, now seen corresponding path program 5 times [2022-10-15 17:12:29,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:12:29,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733915615] [2022-10-15 17:12:29,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:12:29,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:12:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:12:33,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 17:12:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat