/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:38:11,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:38:11,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:38:11,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:38:11,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:38:11,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:38:11,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:38:11,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:38:11,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:38:11,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:38:11,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:38:11,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:38:11,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:38:11,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:38:11,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:38:11,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:38:11,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:38:11,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:38:11,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:38:11,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:38:11,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:38:11,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:38:11,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:38:11,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:38:11,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 22:38:11,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:38:11,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:38:11,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:38:11,389 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-20 22:38:11,410 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:38:11,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:38:11,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:38:11,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:38:11,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:38:11,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:38:11,411 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:38:11,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:38:11,411 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:38:11,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:38:11,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:38:11,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:38:11,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:38:11,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:38:11,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:38:11,412 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:38:11,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:38:11,412 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:38:11,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:38:11,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:38:11,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:38:11,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:38:11,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:38:11,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:38:11,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:38:11,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:38:11,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:38:11,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:38:11,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:38:11,413 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:38:11,413 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:38:11,413 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:38:11,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:38:11,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:38:11,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:38:11,616 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:38:11,616 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:38:11,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-09-20 22:38:11,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca05727d9/b155561ba6a54c8381a510b0629273bd/FLAG65f062a63 [2022-09-20 22:38:12,120 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:38:12,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-09-20 22:38:12,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca05727d9/b155561ba6a54c8381a510b0629273bd/FLAG65f062a63 [2022-09-20 22:38:12,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca05727d9/b155561ba6a54c8381a510b0629273bd [2022-09-20 22:38:12,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:38:12,659 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:38:12,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:38:12,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:38:12,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:38:12,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:38:12" (1/1) ... [2022-09-20 22:38:12,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b13de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:12, skipping insertion in model container [2022-09-20 22:38:12,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:38:12" (1/1) ... [2022-09-20 22:38:12,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:38:12,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:38:12,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-09-20 22:38:13,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:38:13,155 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:38:13,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-09-20 22:38:13,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:38:13,261 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:38:13,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:13 WrapperNode [2022-09-20 22:38:13,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:38:13,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:38:13,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:38:13,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:38:13,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:13" (1/1) ... [2022-09-20 22:38:13,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:13" (1/1) ... [2022-09-20 22:38:13,324 INFO L138 Inliner]: procedures = 354, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2022-09-20 22:38:13,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:38:13,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:38:13,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:38:13,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:38:13,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:13" (1/1) ... [2022-09-20 22:38:13,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:13" (1/1) ... [2022-09-20 22:38:13,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:13" (1/1) ... [2022-09-20 22:38:13,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:13" (1/1) ... [2022-09-20 22:38:13,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:13" (1/1) ... [2022-09-20 22:38:13,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:13" (1/1) ... [2022-09-20 22:38:13,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:13" (1/1) ... [2022-09-20 22:38:13,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:38:13,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:38:13,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:38:13,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:38:13,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:13" (1/1) ... [2022-09-20 22:38:13,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:38:13,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:38:13,413 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) [2022-09-20 22:38:13,418 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 [2022-09-20 22:38:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-09-20 22:38:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-09-20 22:38:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-09-20 22:38:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-09-20 22:38:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-09-20 22:38:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:38:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:38:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 22:38:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:38:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-20 22:38:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:38:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:38:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:38:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:38:13,440 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:38:13,611 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:38:13,612 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:38:13,782 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:38:13,786 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:38:13,786 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:38:13,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:38:13 BoogieIcfgContainer [2022-09-20 22:38:13,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:38:13,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:38:13,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:38:13,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:38:13,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:38:12" (1/3) ... [2022-09-20 22:38:13,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8a66e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:38:13, skipping insertion in model container [2022-09-20 22:38:13,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:38:13" (2/3) ... [2022-09-20 22:38:13,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8a66e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:38:13, skipping insertion in model container [2022-09-20 22:38:13,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:38:13" (3/3) ... [2022-09-20 22:38:13,794 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-09-20 22:38:13,806 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:38:13,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 22:38:13,806 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:38:13,852 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-20 22:38:13,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 95 transitions, 206 flow [2022-09-20 22:38:13,923 INFO L130 PetriNetUnfolder]: 1/93 cut-off events. [2022-09-20 22:38:13,924 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-20 22:38:13,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 93 events. 1/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2022-09-20 22:38:13,927 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 95 transitions, 206 flow [2022-09-20 22:38:13,930 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 75 transitions, 159 flow [2022-09-20 22:38:13,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:38:13,946 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@656a70da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:38:13,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-09-20 22:38:13,967 INFO L130 PetriNetUnfolder]: 0/71 cut-off events. [2022-09-20 22:38:13,967 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-20 22:38:13,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:38:13,969 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:38:13,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:38:13,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:38:13,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1499020934, now seen corresponding path program 1 times [2022-09-20 22:38:13,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:38:13,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287167961] [2022-09-20 22:38:13,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:38:13,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:38:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:38:14,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:38:14,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:38:14,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287167961] [2022-09-20 22:38:14,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287167961] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:38:14,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:38:14,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:38:14,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950995590] [2022-09-20 22:38:14,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:38:14,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:38:14,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:38:14,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:38:14,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:38:14,474 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 95 [2022-09-20 22:38:14,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 75 transitions, 159 flow. Second operand has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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) [2022-09-20 22:38:14,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:38:14,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 95 [2022-09-20 22:38:14,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:38:14,584 INFO L130 PetriNetUnfolder]: 16/148 cut-off events. [2022-09-20 22:38:14,584 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-09-20 22:38:14,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 148 events. 16/148 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 389 event pairs, 1 based on Foata normal form. 4/152 useless extension candidates. Maximal degree in co-relation 138. Up to 21 conditions per place. [2022-09-20 22:38:14,587 INFO L137 encePairwiseOnDemand]: 89/95 looper letters, 11 selfloop transitions, 3 changer transitions 11/90 dead transitions. [2022-09-20 22:38:14,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 90 transitions, 248 flow [2022-09-20 22:38:14,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 22:38:14,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 22:38:14,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 587 transitions. [2022-09-20 22:38:14,601 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8827067669172932 [2022-09-20 22:38:14,602 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 587 transitions. [2022-09-20 22:38:14,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 587 transitions. [2022-09-20 22:38:14,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:38:14,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 587 transitions. [2022-09-20 22:38:14,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 83.85714285714286) internal successors, (587), 7 states have internal predecessors, (587), 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) [2022-09-20 22:38:14,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 95.0) internal successors, (760), 8 states have internal predecessors, (760), 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) [2022-09-20 22:38:14,618 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 95.0) internal successors, (760), 8 states have internal predecessors, (760), 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) [2022-09-20 22:38:14,620 INFO L175 Difference]: Start difference. First operand has 82 places, 75 transitions, 159 flow. Second operand 7 states and 587 transitions. [2022-09-20 22:38:14,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 90 transitions, 248 flow [2022-09-20 22:38:14,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 90 transitions, 238 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-20 22:38:14,627 INFO L231 Difference]: Finished difference. Result has 90 places, 75 transitions, 173 flow [2022-09-20 22:38:14,628 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=173, PETRI_PLACES=90, PETRI_TRANSITIONS=75} [2022-09-20 22:38:14,631 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2022-09-20 22:38:14,631 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 75 transitions, 173 flow [2022-09-20 22:38:14,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 81.4) internal successors, (407), 5 states have internal predecessors, (407), 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) [2022-09-20 22:38:14,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:38:14,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:38:14,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:38:14,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:38:14,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:38:14,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1579592568, now seen corresponding path program 1 times [2022-09-20 22:38:14,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:38:14,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579931277] [2022-09-20 22:38:14,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:38:14,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:38:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:38:14,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:38:14,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:38:14,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579931277] [2022-09-20 22:38:14,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579931277] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:38:14,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:38:14,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 22:38:14,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745028129] [2022-09-20 22:38:14,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:38:14,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 22:38:14,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:38:14,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 22:38:14,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 22:38:14,760 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 95 [2022-09-20 22:38:14,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 75 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2022-09-20 22:38:14,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:38:14,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 95 [2022-09-20 22:38:14,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:38:14,826 INFO L130 PetriNetUnfolder]: 7/102 cut-off events. [2022-09-20 22:38:14,827 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-09-20 22:38:14,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 102 events. 7/102 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 176 event pairs, 1 based on Foata normal form. 10/111 useless extension candidates. Maximal degree in co-relation 161. Up to 13 conditions per place. [2022-09-20 22:38:14,834 INFO L137 encePairwiseOnDemand]: 87/95 looper letters, 15 selfloop transitions, 5 changer transitions 12/80 dead transitions. [2022-09-20 22:38:14,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 80 transitions, 242 flow [2022-09-20 22:38:14,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-20 22:38:14,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-20 22:38:14,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 370 transitions. [2022-09-20 22:38:14,836 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7789473684210526 [2022-09-20 22:38:14,836 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 370 transitions. [2022-09-20 22:38:14,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 370 transitions. [2022-09-20 22:38:14,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:38:14,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 370 transitions. [2022-09-20 22:38:14,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 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) [2022-09-20 22:38:14,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 95.0) internal successors, (570), 6 states have internal predecessors, (570), 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) [2022-09-20 22:38:14,839 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 95.0) internal successors, (570), 6 states have internal predecessors, (570), 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) [2022-09-20 22:38:14,839 INFO L175 Difference]: Start difference. First operand has 90 places, 75 transitions, 173 flow. Second operand 5 states and 370 transitions. [2022-09-20 22:38:14,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 80 transitions, 242 flow [2022-09-20 22:38:14,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 80 transitions, 228 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-09-20 22:38:14,841 INFO L231 Difference]: Finished difference. Result has 84 places, 65 transitions, 147 flow [2022-09-20 22:38:14,842 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=147, PETRI_PLACES=84, PETRI_TRANSITIONS=65} [2022-09-20 22:38:14,842 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2022-09-20 22:38:14,842 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 65 transitions, 147 flow [2022-09-20 22:38:14,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 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) [2022-09-20 22:38:14,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:38:14,843 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:38:14,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 22:38:14,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:38:14,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:38:14,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1341110535, now seen corresponding path program 1 times [2022-09-20 22:38:14,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:38:14,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231655484] [2022-09-20 22:38:14,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:38:14,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:38:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 22:38:14,891 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-20 22:38:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 22:38:14,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-20 22:38:14,946 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-20 22:38:14,947 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-09-20 22:38:14,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-09-20 22:38:14,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-09-20 22:38:14,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-09-20 22:38:14,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 22:38:14,950 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-09-20 22:38:14,953 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:38:14,954 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:38:15,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:38:15 BasicIcfg [2022-09-20 22:38:15,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:38:15,008 INFO L158 Benchmark]: Toolchain (without parser) took 2348.73ms. Allocated memory was 166.7MB in the beginning and 246.4MB in the end (delta: 79.7MB). Free memory was 137.0MB in the beginning and 139.5MB in the end (delta: -2.5MB). Peak memory consumption was 76.4MB. Max. memory is 8.0GB. [2022-09-20 22:38:15,008 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 166.7MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:38:15,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.99ms. Allocated memory was 166.7MB in the beginning and 246.4MB in the end (delta: 79.7MB). Free memory was 136.7MB in the beginning and 189.4MB in the end (delta: -52.7MB). Peak memory consumption was 29.1MB. Max. memory is 8.0GB. [2022-09-20 22:38:15,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.06ms. Allocated memory is still 246.4MB. Free memory was 189.4MB in the beginning and 186.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 22:38:15,009 INFO L158 Benchmark]: Boogie Preprocessor took 51.56ms. Allocated memory is still 246.4MB. Free memory was 186.8MB in the beginning and 184.3MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-20 22:38:15,009 INFO L158 Benchmark]: RCFGBuilder took 410.04ms. Allocated memory is still 246.4MB. Free memory was 184.3MB in the beginning and 167.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-09-20 22:38:15,010 INFO L158 Benchmark]: TraceAbstraction took 1218.15ms. Allocated memory is still 246.4MB. Free memory was 167.1MB in the beginning and 139.5MB in the end (delta: 27.6MB). Peak memory consumption was 28.4MB. Max. memory is 8.0GB. [2022-09-20 22:38:15,018 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 166.7MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 599.99ms. Allocated memory was 166.7MB in the beginning and 246.4MB in the end (delta: 79.7MB). Free memory was 136.7MB in the beginning and 189.4MB in the end (delta: -52.7MB). Peak memory consumption was 29.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.06ms. Allocated memory is still 246.4MB. Free memory was 189.4MB in the beginning and 186.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.56ms. Allocated memory is still 246.4MB. Free memory was 186.8MB in the beginning and 184.3MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 410.04ms. Allocated memory is still 246.4MB. Free memory was 184.3MB in the beginning and 167.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 1218.15ms. Allocated memory is still 246.4MB. Free memory was 167.1MB in the beginning and 139.5MB in the end (delta: 27.6MB). Peak memory consumption was 28.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; VAL [g=0] [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [g=0, mut={4:0}] [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; VAL [cond={5:0}, g=0, mut={4:0}] [L1373] 0 pthread_t t1; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, t1={7:0}] [L1374] 0 pthread_t t2; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, t1={7:0}, t2={6:0}] [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, ptr={0:0}, t1={7:0}, t2={6:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={5:0}, g=0, mut={4:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, ptr={0:0}, t1={7:0}, t2={6:0}] [L1356] 1 g = 1 VAL [cond={5:0}, g=1, mut={4:0}, ptr={0:0}, ptr={0:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) VAL [\old(cond)=0, cond=0, cond={5:0}, g=1, mut={4:0}, ptr={0:0}, ptr={0:0}] [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={5:0}, g=1, mut={4:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1377]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 127 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 26 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2022-09-20 22:38:15,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...