/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/gcd01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:06:17,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:06:17,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:06:17,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 02:06:17,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 02:06:17,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 02:06:17,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 02:06:17,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 02:06:17,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 02:06:17,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 02:06:17,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 02:06:17,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 02:06:17,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 02:06:17,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 02:06:17,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 02:06:17,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 02:06:17,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 02:06:17,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 02:06:17,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 02:06:17,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 02:06:17,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 02:06:17,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 02:06:17,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 02:06:17,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 02:06:17,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 02:06:17,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 02:06:17,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 02:06:17,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 02:06:17,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 02:06:17,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 02:06:17,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 02:06:17,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 02:06:17,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 02:06:17,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 02:06:17,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 02:06:17,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 02:06:17,492 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 [2022-10-16 02:06:17,536 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:06:17,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:06:17,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:06:17,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:06:17,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:06:17,538 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:06:17,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:06:17,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:06:17,541 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:06:17,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:06:17,543 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:06:17,543 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:06:17,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:06:17,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:06:17,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:06:17,544 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:06:17,544 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:06:17,544 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:06:17,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:06:17,545 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:06:17,545 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:06:17,545 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:06:17,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:06:17,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:06:17,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:06:17,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:06:17,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:06:17,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:06:17,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:06:17,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:06:17,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:06:17,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:06:18,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:06:18,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:06:18,009 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:06:18,009 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:06:18,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/gcd01-1.c [2022-10-16 02:06:18,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/731d09ed7/847e5a4c67cf4297b9a23130ee5b4348/FLAG2ffa5b71a [2022-10-16 02:06:18,671 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:06:18,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/gcd01-1.c [2022-10-16 02:06:18,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/731d09ed7/847e5a4c67cf4297b9a23130ee5b4348/FLAG2ffa5b71a [2022-10-16 02:06:19,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/731d09ed7/847e5a4c67cf4297b9a23130ee5b4348 [2022-10-16 02:06:19,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:06:19,058 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:06:19,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:06:19,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:06:19,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:06:19,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54cd5a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19, skipping insertion in model container [2022-10-16 02:06:19,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:06:19,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:06:19,257 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/gcd01-1.c[1008,1021] [2022-10-16 02:06:19,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:06:19,271 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:06:19,289 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/gcd01-1.c[1008,1021] [2022-10-16 02:06:19,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:06:19,305 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:06:19,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19 WrapperNode [2022-10-16 02:06:19,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:06:19,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:06:19,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:06:19,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:06:19,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,338 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-10-16 02:06:19,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:06:19,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:06:19,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:06:19,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:06:19,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,356 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:06:19,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:06:19,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:06:19,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:06:19,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19" (1/1) ... [2022-10-16 02:06:19,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:06:19,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:06:19,405 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) [2022-10-16 02:06:19,430 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 [2022-10-16 02:06:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:06:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2022-10-16 02:06:19,475 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2022-10-16 02:06:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:06:19,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:06:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:06:19,546 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:06:19,548 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:06:19,826 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:06:19,834 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:06:19,835 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 02:06:19,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:06:19 BoogieIcfgContainer [2022-10-16 02:06:19,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:06:19,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:06:19,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:06:19,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:06:19,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:06:19" (1/3) ... [2022-10-16 02:06:19,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fee23f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:06:19, skipping insertion in model container [2022-10-16 02:06:19,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:19" (2/3) ... [2022-10-16 02:06:19,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fee23f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:06:19, skipping insertion in model container [2022-10-16 02:06:19,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:06:19" (3/3) ... [2022-10-16 02:06:19,850 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd01-1.c [2022-10-16 02:06:19,875 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:06:19,875 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:06:19,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:06:19,945 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;@7fe3c332, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:06:19,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:06:19,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.5) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:06:20,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 02:06:20,005 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:06:20,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 02:06:20,010 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:06:20,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:06:20,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1479734, now seen corresponding path program 1 times [2022-10-16 02:06:20,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:06:20,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447539154] [2022-10-16 02:06:20,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:06:20,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:06:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:06:20,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:06:20,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447539154] [2022-10-16 02:06:20,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447539154] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:06:20,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:06:20,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:06:20,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336027615] [2022-10-16 02:06:20,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:06:20,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:06:20,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:06:20,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:06:20,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:06:20,310 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.5) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:06:20,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:06:20,353 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2022-10-16 02:06:20,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:06:20,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-16 02:06:20,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:06:20,365 INFO L225 Difference]: With dead ends: 22 [2022-10-16 02:06:20,365 INFO L226 Difference]: Without dead ends: 19 [2022-10-16 02:06:20,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:06:20,372 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:06:20,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 41 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:06:20,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-10-16 02:06:20,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-10-16 02:06:20,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 02:06:20,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-10-16 02:06:20,419 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 4 [2022-10-16 02:06:20,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:06:20,419 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-10-16 02:06:20,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:06:20,420 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-10-16 02:06:20,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 02:06:20,422 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:06:20,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:06:20,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:06:20,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:06:20,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:06:20,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1045336981, now seen corresponding path program 1 times [2022-10-16 02:06:20,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:06:20,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872024448] [2022-10-16 02:06:20,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:06:20,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:06:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:20,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:20,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:06:20,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:06:20,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872024448] [2022-10-16 02:06:20,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872024448] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:06:20,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:06:20,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:06:20,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584352421] [2022-10-16 02:06:20,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:06:20,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:06:20,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:06:20,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:06:20,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:06:20,767 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-10-16 02:06:20,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:06:20,840 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2022-10-16 02:06:20,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:06:20,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 12 [2022-10-16 02:06:20,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:06:20,845 INFO L225 Difference]: With dead ends: 21 [2022-10-16 02:06:20,845 INFO L226 Difference]: Without dead ends: 21 [2022-10-16 02:06:20,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:06:20,848 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:06:20,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 33 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:06:20,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-10-16 02:06:20,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-10-16 02:06:20,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-16 02:06:20,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-10-16 02:06:20,867 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 12 [2022-10-16 02:06:20,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:06:20,870 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-10-16 02:06:20,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-10-16 02:06:20,870 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-10-16 02:06:20,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 02:06:20,873 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:06:20,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:06:20,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:06:20,874 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:06:20,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:06:20,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1383022649, now seen corresponding path program 1 times [2022-10-16 02:06:20,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:06:20,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978970304] [2022-10-16 02:06:20,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:06:20,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:06:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:21,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:21,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:06:21,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:06:21,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978970304] [2022-10-16 02:06:21,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978970304] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:06:21,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:06:21,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:06:21,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451378837] [2022-10-16 02:06:21,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:06:21,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:06:21,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:06:21,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:06:21,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:06:21,097 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-10-16 02:06:21,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:06:21,158 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2022-10-16 02:06:21,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:06:21,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 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 13 [2022-10-16 02:06:21,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:06:21,160 INFO L225 Difference]: With dead ends: 25 [2022-10-16 02:06:21,160 INFO L226 Difference]: Without dead ends: 23 [2022-10-16 02:06:21,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:06:21,162 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 8 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:06:21,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 72 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:06:21,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-16 02:06:21,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-10-16 02:06:21,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-16 02:06:21,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-10-16 02:06:21,175 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 13 [2022-10-16 02:06:21,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:06:21,176 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-10-16 02:06:21,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-10-16 02:06:21,176 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-10-16 02:06:21,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 02:06:21,181 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:06:21,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:06:21,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:06:21,182 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:06:21,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:06:21,184 INFO L85 PathProgramCache]: Analyzing trace with hash -233385519, now seen corresponding path program 1 times [2022-10-16 02:06:21,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:06:21,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439397903] [2022-10-16 02:06:21,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:06:21,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:06:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:21,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:21,365 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 02:06:21,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:06:21,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439397903] [2022-10-16 02:06:21,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439397903] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:06:21,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:06:21,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:06:21,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934424908] [2022-10-16 02:06:21,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:06:21,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:06:21,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:06:21,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:06:21,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:06:21,369 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 02:06:21,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:06:21,465 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2022-10-16 02:06:21,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:06:21,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2022-10-16 02:06:21,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:06:21,469 INFO L225 Difference]: With dead ends: 25 [2022-10-16 02:06:21,470 INFO L226 Difference]: Without dead ends: 25 [2022-10-16 02:06:21,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:06:21,475 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 17 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:06:21,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 54 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:06:21,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-10-16 02:06:21,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2022-10-16 02:06:21,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 02:06:21,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-10-16 02:06:21,494 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 20 [2022-10-16 02:06:21,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:06:21,494 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-10-16 02:06:21,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 02:06:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-10-16 02:06:21,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 02:06:21,497 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:06:21,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:06:21,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:06:21,498 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:06:21,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:06:21,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1579145265, now seen corresponding path program 1 times [2022-10-16 02:06:21,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:06:21,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608748752] [2022-10-16 02:06:21,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:06:21,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:06:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:21,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:21,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:21,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 02:06:21,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:06:21,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608748752] [2022-10-16 02:06:21,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608748752] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:06:21,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:06:21,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:06:21,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831165580] [2022-10-16 02:06:21,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:06:21,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:06:21,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:06:21,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:06:21,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:06:21,796 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 02:06:21,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:06:21,912 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2022-10-16 02:06:21,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:06:21,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2022-10-16 02:06:21,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:06:21,914 INFO L225 Difference]: With dead ends: 25 [2022-10-16 02:06:21,914 INFO L226 Difference]: Without dead ends: 23 [2022-10-16 02:06:21,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:06:21,917 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:06:21,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 55 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:06:21,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-16 02:06:21,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2022-10-16 02:06:21,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-16 02:06:21,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-10-16 02:06:21,924 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 20 [2022-10-16 02:06:21,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:06:21,924 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-10-16 02:06:21,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 02:06:21,925 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-10-16 02:06:21,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 02:06:21,926 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:06:21,926 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:06:21,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:06:21,927 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:06:21,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:06:21,927 INFO L85 PathProgramCache]: Analyzing trace with hash 2129644215, now seen corresponding path program 1 times [2022-10-16 02:06:21,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:06:21,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411853958] [2022-10-16 02:06:21,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:06:21,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:06:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:21,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:22,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:22,077 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 02:06:22,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:06:22,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411853958] [2022-10-16 02:06:22,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411853958] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:06:22,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741154689] [2022-10-16 02:06:22,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:06:22,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:06:22,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:06:22,081 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) [2022-10-16 02:06:22,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 02:06:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:22,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 02:06:22,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:06:22,220 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:06:22,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:06:22,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741154689] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:06:22,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:06:22,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 10 [2022-10-16 02:06:22,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784478570] [2022-10-16 02:06:22,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:06:22,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:06:22,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:06:22,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:06:22,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-16 02:06:22,224 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:06:22,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:06:22,287 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2022-10-16 02:06:22,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:06:22,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-10-16 02:06:22,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:06:22,289 INFO L225 Difference]: With dead ends: 26 [2022-10-16 02:06:22,289 INFO L226 Difference]: Without dead ends: 24 [2022-10-16 02:06:22,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-10-16 02:06:22,291 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:06:22,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 65 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:06:22,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-10-16 02:06:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-10-16 02:06:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-16 02:06:22,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-10-16 02:06:22,298 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 21 [2022-10-16 02:06:22,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:06:22,298 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-10-16 02:06:22,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 02:06:22,299 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-10-16 02:06:22,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 02:06:22,300 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:06:22,300 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:06:22,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 02:06:22,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-16 02:06:22,512 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:06:22,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:06:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash -926471849, now seen corresponding path program 1 times [2022-10-16 02:06:22,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:06:22,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576232260] [2022-10-16 02:06:22,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:06:22,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:06:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:22,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:22,653 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 02:06:22,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:06:22,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576232260] [2022-10-16 02:06:22,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576232260] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:06:22,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:06:22,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 02:06:22,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847422066] [2022-10-16 02:06:22,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:06:22,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 02:06:22,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:06:22,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 02:06:22,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:06:22,657 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 02:06:22,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:06:22,715 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2022-10-16 02:06:22,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:06:22,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2022-10-16 02:06:22,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:06:22,717 INFO L225 Difference]: With dead ends: 29 [2022-10-16 02:06:22,717 INFO L226 Difference]: Without dead ends: 27 [2022-10-16 02:06:22,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:06:22,719 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:06:22,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 65 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:06:22,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-16 02:06:22,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-16 02:06:22,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 02:06:22,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2022-10-16 02:06:22,726 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 21 [2022-10-16 02:06:22,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:06:22,726 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-10-16 02:06:22,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 02:06:22,727 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-10-16 02:06:22,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 02:06:22,728 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:06:22,728 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:06:22,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:06:22,729 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:06:22,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:06:22,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1410598041, now seen corresponding path program 1 times [2022-10-16 02:06:22,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:06:22,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688870378] [2022-10-16 02:06:22,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:06:22,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:06:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:22,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:22,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 02:06:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:22,909 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:06:22,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:06:22,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688870378] [2022-10-16 02:06:22,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688870378] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:06:22,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832492645] [2022-10-16 02:06:22,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:06:22,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:06:22,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:06:22,911 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) [2022-10-16 02:06:22,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 02:06:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:06:22,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 02:06:22,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:06:23,009 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 02:06:23,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:06:23,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832492645] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:06:23,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:06:23,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 11 [2022-10-16 02:06:23,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107487789] [2022-10-16 02:06:23,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:06:23,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 02:06:23,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:06:23,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 02:06:23,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:06:23,012 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 02:06:23,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:06:23,075 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2022-10-16 02:06:23,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 02:06:23,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2022-10-16 02:06:23,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:06:23,077 INFO L225 Difference]: With dead ends: 25 [2022-10-16 02:06:23,077 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 02:06:23,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:06:23,078 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:06:23,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 57 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:06:23,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 02:06:23,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 02:06:23,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:06:23,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 02:06:23,080 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-10-16 02:06:23,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:06:23,081 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 02:06:23,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 02:06:23,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 02:06:23,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 02:06:23,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-10-16 02:06:23,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-10-16 02:06:23,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 02:06:23,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-16 02:06:23,306 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:06:23,308 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 02:06:23,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:06:23 BoogieIcfgContainer [2022-10-16 02:06:23,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 02:06:23,314 INFO L158 Benchmark]: Toolchain (without parser) took 4259.94ms. Allocated memory was 160.4MB in the beginning and 208.7MB in the end (delta: 48.2MB). Free memory was 134.5MB in the beginning and 99.4MB in the end (delta: 35.1MB). Peak memory consumption was 84.2MB. Max. memory is 8.0GB. [2022-10-16 02:06:23,314 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 160.4MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 02:06:23,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.74ms. Allocated memory is still 160.4MB. Free memory was 134.2MB in the beginning and 124.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 02:06:23,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.61ms. Allocated memory is still 160.4MB. Free memory was 124.6MB in the beginning and 123.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 02:06:23,319 INFO L158 Benchmark]: Boogie Preprocessor took 19.48ms. Allocated memory is still 160.4MB. Free memory was 123.2MB in the beginning and 122.2MB in the end (delta: 973.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 02:06:23,320 INFO L158 Benchmark]: RCFGBuilder took 478.47ms. Allocated memory is still 160.4MB. Free memory was 122.0MB in the beginning and 111.3MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 02:06:23,320 INFO L158 Benchmark]: TraceAbstraction took 3471.79ms. Allocated memory was 160.4MB in the beginning and 208.7MB in the end (delta: 48.2MB). Free memory was 110.7MB in the beginning and 99.4MB in the end (delta: 11.3MB). Peak memory consumption was 60.1MB. Max. memory is 8.0GB. [2022-10-16 02:06:23,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 160.4MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 242.74ms. Allocated memory is still 160.4MB. Free memory was 134.2MB in the beginning and 124.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.61ms. Allocated memory is still 160.4MB. Free memory was 124.6MB in the beginning and 123.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.48ms. Allocated memory is still 160.4MB. Free memory was 123.2MB in the beginning and 122.2MB in the end (delta: 973.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 478.47ms. Allocated memory is still 160.4MB. Free memory was 122.0MB in the beginning and 111.3MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 3471.79ms. Allocated memory was 160.4MB in the beginning and 208.7MB in the end (delta: 48.2MB). Free memory was 110.7MB in the beginning and 99.4MB in the end (delta: 11.3MB). Peak memory consumption was 60.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 41]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 30]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 442 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 312 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 364 IncrementalHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 130 mSDtfsCounter, 364 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=7, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 413 SizeOfPredicates, 2 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 49/55 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-16 02:06:23,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...