/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_19-publish-precision_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:37:34,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:37:34,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:37:34,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:37:34,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:37:34,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:37:34,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:37:34,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:37:34,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:37:34,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:37:34,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:37:34,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:37:34,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:37:34,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:37:34,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:37:34,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:37:34,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:37:34,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:37:34,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:37:34,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:37:34,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:37:34,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:37:34,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:37:34,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:37:34,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 22:37:34,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:37:34,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:37:34,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:37:34,869 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 22:37:34,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:37:34,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:37:34,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:37:34,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:37:34,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:37:34,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:37:34,895 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:37:34,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:37:34,895 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:37:34,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:37:34,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:37:34,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:37:34,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:37:34,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:37:34,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:37:34,896 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:37:34,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:37:34,897 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:37:34,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:37:34,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:37:34,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:37:34,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:37:34,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:37:34,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:37:34,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:37:34,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:37:34,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:37:34,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:37:34,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:37:34,899 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:37:34,899 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:37:34,899 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:37:35,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:37:35,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:37:35,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:37:35,112 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:37:35,120 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:37:35,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-09-20 22:37:35,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfdf00d9b/b3c09b7d49db4f0f92d75172d843c3ab/FLAGc4c3c97ed [2022-09-20 22:37:35,596 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:37:35,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-09-20 22:37:35,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfdf00d9b/b3c09b7d49db4f0f92d75172d843c3ab/FLAGc4c3c97ed [2022-09-20 22:37:35,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfdf00d9b/b3c09b7d49db4f0f92d75172d843c3ab [2022-09-20 22:37:35,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:37:35,629 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:37:35,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:37:35,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:37:35,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:37:35,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:37:35" (1/1) ... [2022-09-20 22:37:35,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6987e190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:35, skipping insertion in model container [2022-09-20 22:37:35,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:37:35" (1/1) ... [2022-09-20 22:37:35,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:37:35,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:37:35,822 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_19-publish-precision_unknown_1_pos.i[1103,1116] [2022-09-20 22:37:35,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:37:35,961 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:37:35,970 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_19-publish-precision_unknown_1_pos.i[1103,1116] [2022-09-20 22:37:35,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:37:36,011 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:37:36,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:36 WrapperNode [2022-09-20 22:37:36,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:37:36,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:37:36,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:37:36,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:37:36,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:36" (1/1) ... [2022-09-20 22:37:36,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:36" (1/1) ... [2022-09-20 22:37:36,041 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-09-20 22:37:36,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:37:36,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:37:36,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:37:36,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:37:36,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:36" (1/1) ... [2022-09-20 22:37:36,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:36" (1/1) ... [2022-09-20 22:37:36,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:36" (1/1) ... [2022-09-20 22:37:36,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:36" (1/1) ... [2022-09-20 22:37:36,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:36" (1/1) ... [2022-09-20 22:37:36,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:36" (1/1) ... [2022-09-20 22:37:36,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:36" (1/1) ... [2022-09-20 22:37:36,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:37:36,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:37:36,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:37:36,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:37:36,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:36" (1/1) ... [2022-09-20 22:37:36,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:37:36,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:37:36,113 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 22:37:36,115 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 22:37:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 22:37:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:37:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-20 22:37:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:37:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:37:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-20 22:37:36,148 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-20 22:37:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:37:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:37:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:37:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:37:36,154 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 22:37:36,279 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:37:36,280 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:37:36,479 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:37:36,483 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:37:36,483 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:37:36,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:37:36 BoogieIcfgContainer [2022-09-20 22:37:36,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:37:36,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:37:36,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:37:36,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:37:36,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:37:35" (1/3) ... [2022-09-20 22:37:36,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d27d27f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:37:36, skipping insertion in model container [2022-09-20 22:37:36,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:37:36" (2/3) ... [2022-09-20 22:37:36,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d27d27f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:37:36, skipping insertion in model container [2022-09-20 22:37:36,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:37:36" (3/3) ... [2022-09-20 22:37:36,494 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2022-09-20 22:37:36,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:37:36,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 22:37:36,506 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:37:36,557 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-20 22:37:36,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 150 flow [2022-09-20 22:37:36,633 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2022-09-20 22:37:36,633 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-20 22:37:36,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 1/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-09-20 22:37:36,638 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 71 transitions, 150 flow [2022-09-20 22:37:36,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 56 transitions, 115 flow [2022-09-20 22:37:36,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:37:36,662 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;@57b4a353, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:37:36,662 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-09-20 22:37:36,682 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-09-20 22:37:36,682 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:37:36,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:37:36,683 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] [2022-09-20 22:37:36,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:37:36,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:37:36,687 INFO L85 PathProgramCache]: Analyzing trace with hash -881270525, now seen corresponding path program 1 times [2022-09-20 22:37:36,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:37:36,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048624828] [2022-09-20 22:37:36,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:37:36,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:37:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:37:36,974 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 22:37:36,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:37:36,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048624828] [2022-09-20 22:37:36,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048624828] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:37:36,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:37:36,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:37:36,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338765653] [2022-09-20 22:37:36,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:37:36,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:37:36,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:37:37,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:37:37,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:37:37,013 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 71 [2022-09-20 22:37:37,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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 22:37:37,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:37:37,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 71 [2022-09-20 22:37:37,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:37:37,095 INFO L130 PetriNetUnfolder]: 8/99 cut-off events. [2022-09-20 22:37:37,095 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-20 22:37:37,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 99 events. 8/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 202 event pairs, 0 based on Foata normal form. 3/102 useless extension candidates. Maximal degree in co-relation 94. Up to 10 conditions per place. [2022-09-20 22:37:37,097 INFO L137 encePairwiseOnDemand]: 65/71 looper letters, 8 selfloop transitions, 3 changer transitions 9/68 dead transitions. [2022-09-20 22:37:37,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 68 transitions, 179 flow [2022-09-20 22:37:37,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 22:37:37,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 22:37:37,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 435 transitions. [2022-09-20 22:37:37,112 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8752515090543259 [2022-09-20 22:37:37,113 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 435 transitions. [2022-09-20 22:37:37,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 435 transitions. [2022-09-20 22:37:37,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:37:37,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 435 transitions. [2022-09-20 22:37:37,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 62.142857142857146) internal successors, (435), 7 states have internal predecessors, (435), 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 22:37:37,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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 22:37:37,131 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 71.0) internal successors, (568), 8 states have internal predecessors, (568), 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 22:37:37,133 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 115 flow. Second operand 7 states and 435 transitions. [2022-09-20 22:37:37,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 68 transitions, 179 flow [2022-09-20 22:37:37,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-20 22:37:37,144 INFO L231 Difference]: Finished difference. Result has 70 places, 56 transitions, 133 flow [2022-09-20 22:37:37,145 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=133, PETRI_PLACES=70, PETRI_TRANSITIONS=56} [2022-09-20 22:37:37,149 INFO L287 CegarLoopForPetriNet]: 60 programPoint places, 10 predicate places. [2022-09-20 22:37:37,149 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 56 transitions, 133 flow [2022-09-20 22:37:37,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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 22:37:37,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:37:37,150 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] [2022-09-20 22:37:37,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:37:37,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:37:37,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:37:37,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1191502746, now seen corresponding path program 1 times [2022-09-20 22:37:37,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:37:37,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089483075] [2022-09-20 22:37:37,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:37:37,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:37:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:37:37,196 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 22:37:37,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:37:37,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089483075] [2022-09-20 22:37:37,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089483075] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:37:37,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:37:37,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-20 22:37:37,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172398412] [2022-09-20 22:37:37,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:37:37,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-20 22:37:37,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:37:37,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-20 22:37:37,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-20 22:37:37,198 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 71 [2022-09-20 22:37:37,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 56 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 22:37:37,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:37:37,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 71 [2022-09-20 22:37:37,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:37:37,234 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2022-09-20 22:37:37,234 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-09-20 22:37:37,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 72 events. 1/72 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 72 event pairs, 0 based on Foata normal form. 4/76 useless extension candidates. Maximal degree in co-relation 99. Up to 13 conditions per place. [2022-09-20 22:37:37,235 INFO L137 encePairwiseOnDemand]: 65/71 looper letters, 8 selfloop transitions, 3 changer transitions 9/58 dead transitions. [2022-09-20 22:37:37,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 169 flow [2022-09-20 22:37:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-20 22:37:37,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-20 22:37:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2022-09-20 22:37:37,236 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8356807511737089 [2022-09-20 22:37:37,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2022-09-20 22:37:37,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2022-09-20 22:37:37,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:37:37,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2022-09-20 22:37:37,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 22:37:37,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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 22:37:37,238 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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 22:37:37,238 INFO L175 Difference]: Start difference. First operand has 70 places, 56 transitions, 133 flow. Second operand 3 states and 178 transitions. [2022-09-20 22:37:37,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 169 flow [2022-09-20 22:37:37,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 155 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-09-20 22:37:37,239 INFO L231 Difference]: Finished difference. Result has 62 places, 49 transitions, 110 flow [2022-09-20 22:37:37,239 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=62, PETRI_TRANSITIONS=49} [2022-09-20 22:37:37,240 INFO L287 CegarLoopForPetriNet]: 60 programPoint places, 2 predicate places. [2022-09-20 22:37:37,240 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 49 transitions, 110 flow [2022-09-20 22:37:37,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 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 22:37:37,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:37:37,240 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] [2022-09-20 22:37:37,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 22:37:37,241 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:37:37,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:37:37,241 INFO L85 PathProgramCache]: Analyzing trace with hash 576623755, now seen corresponding path program 1 times [2022-09-20 22:37:37,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:37:37,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002405468] [2022-09-20 22:37:37,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:37:37,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:37:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 22:37:37,276 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-20 22:37:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 22:37:37,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-20 22:37:37,326 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-20 22:37:37,326 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-09-20 22:37:37,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-09-20 22:37:37,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 22:37:37,328 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-09-20 22:37:37,332 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:37:37,332 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:37:37,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:37:37 BasicIcfg [2022-09-20 22:37:37,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:37:37,355 INFO L158 Benchmark]: Toolchain (without parser) took 1726.05ms. Allocated memory was 206.6MB in the beginning and 272.6MB in the end (delta: 66.1MB). Free memory was 174.1MB in the beginning and 225.3MB in the end (delta: -51.2MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. [2022-09-20 22:37:37,356 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 206.6MB. Free memory is still 163.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:37:37,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.95ms. Allocated memory was 206.6MB in the beginning and 272.6MB in the end (delta: 66.1MB). Free memory was 173.9MB in the beginning and 234.4MB in the end (delta: -60.5MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. [2022-09-20 22:37:37,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.19ms. Allocated memory is still 272.6MB. Free memory was 234.4MB in the beginning and 232.4MB in the end (delta: 2.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-20 22:37:37,357 INFO L158 Benchmark]: Boogie Preprocessor took 14.17ms. Allocated memory is still 272.6MB. Free memory was 232.4MB in the beginning and 231.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 22:37:37,357 INFO L158 Benchmark]: RCFGBuilder took 427.96ms. Allocated memory is still 272.6MB. Free memory was 231.0MB in the beginning and 219.4MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-09-20 22:37:37,357 INFO L158 Benchmark]: TraceAbstraction took 868.61ms. Allocated memory is still 272.6MB. Free memory was 218.7MB in the beginning and 225.3MB in the end (delta: -6.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:37:37,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 206.6MB. Free memory is still 163.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 382.95ms. Allocated memory was 206.6MB in the beginning and 272.6MB in the end (delta: 66.1MB). Free memory was 173.9MB in the beginning and 234.4MB in the end (delta: -60.5MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.19ms. Allocated memory is still 272.6MB. Free memory was 234.4MB in the beginning and 232.4MB in the end (delta: 2.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.17ms. Allocated memory is still 272.6MB. Free memory was 232.4MB in the beginning and 231.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 427.96ms. Allocated memory is still 272.6MB. Free memory was 231.0MB in the beginning and 219.4MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 868.61ms. Allocated memory is still 272.6MB. Free memory was 218.7MB in the beginning and 225.3MB in the end (delta: -6.6MB). There was no memory consumed. 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: [L681] 0 int glob1 = 0; VAL [glob1=0] [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}] [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}, mutex2={4:0}] [L696] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: 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 3 procedures, 87 locations, 2 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: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 21 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=1, InterpolantAutomatonStates: 10, 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, 0.2s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 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 22:37:37,407 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...