/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf -i ../../../trunk/examples/svcomp/pthread-divine/condvar.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-0d686a6 [2022-07-26 14:06:18,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 14:06:18,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 14:06:18,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-07-26 14:06:18,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 14:06:18,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 14:06:18,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 14:06:18,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 14:06:18,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 14:06:18,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 14:06:18,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 14:06:18,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 14:06:18,549 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 14:06:18,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 14:06:18,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 14:06:18,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 14:06:18,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 14:06:18,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 14:06:18,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 14:06:18,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 14:06:18,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 14:06:18,564 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf [2022-07-26 14:06:18,586 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 14:06:18,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 14:06:18,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 14:06:18,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 14:06:18,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 14:06:18,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 14:06:18,587 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 14:06:18,588 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 14:06:18,588 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 14:06:18,588 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 14:06:18,588 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 14:06:18,588 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 14:06:18,588 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 14:06:18,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 14:06:18,588 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 14:06:18,588 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 14:06:18,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 14:06:18,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 14:06:18,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 14:06:18,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 14:06:18,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 14:06:18,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 14:06:18,589 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 14:06:18,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 14:06:18,589 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 14:06:18,589 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 14:06:18,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 14:06:18,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 14:06:18,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 14:06:18,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 14:06:18,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 14:06:18,590 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-07-26 14:06:18,590 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 14:06:18,591 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 14:06:18,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 14:06:18,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 14:06:18,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 14:06:18,781 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 14:06:18,782 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 14:06:18,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar.i [2022-07-26 14:06:18,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d35b49a7d/4fa478dd29004eeebb438d33aa72bfd3/FLAGbded85ba4 [2022-07-26 14:06:19,232 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 14:06:19,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i [2022-07-26 14:06:19,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d35b49a7d/4fa478dd29004eeebb438d33aa72bfd3/FLAGbded85ba4 [2022-07-26 14:06:19,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d35b49a7d/4fa478dd29004eeebb438d33aa72bfd3 [2022-07-26 14:06:19,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 14:06:19,253 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 14:06:19,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 14:06:19,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 14:06:19,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 14:06:19,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:06:19" (1/1) ... [2022-07-26 14:06:19,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43dd1cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19, skipping insertion in model container [2022-07-26 14:06:19,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:06:19" (1/1) ... [2022-07-26 14:06:19,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 14:06:19,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 14:06:19,419 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-26 14:06:19,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i[30458,30471] [2022-07-26 14:06:19,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:06:19,557 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 14:06:19,571 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-26 14:06:19,589 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar.i[30458,30471] [2022-07-26 14:06:19,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:06:19,643 INFO L208 MainTranslator]: Completed translation [2022-07-26 14:06:19,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19 WrapperNode [2022-07-26 14:06:19,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 14:06:19,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 14:06:19,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 14:06:19,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 14:06:19,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19" (1/1) ... [2022-07-26 14:06:19,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19" (1/1) ... [2022-07-26 14:06:19,690 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-07-26 14:06:19,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 14:06:19,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 14:06:19,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 14:06:19,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 14:06:19,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19" (1/1) ... [2022-07-26 14:06:19,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19" (1/1) ... [2022-07-26 14:06:19,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19" (1/1) ... [2022-07-26 14:06:19,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19" (1/1) ... [2022-07-26 14:06:19,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19" (1/1) ... [2022-07-26 14:06:19,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19" (1/1) ... [2022-07-26 14:06:19,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19" (1/1) ... [2022-07-26 14:06:19,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 14:06:19,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 14:06:19,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 14:06:19,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 14:06:19,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19" (1/1) ... [2022-07-26 14:06:19,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:06:19,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:06:19,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-26 14:06:19,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-26 14:06:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-26 14:06:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 14:06:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-26 14:06:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 14:06:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 14:06:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 14:06:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 14:06:19,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-07-26 14:06:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-07-26 14:06:19,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 14:06:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 14:06:19,798 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-26 14:06:19,869 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 14:06:19,870 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 14:06:20,030 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 14:06:20,035 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 14:06:20,036 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-26 14:06:20,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:06:20 BoogieIcfgContainer [2022-07-26 14:06:20,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 14:06:20,038 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 14:06:20,038 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 14:06:20,044 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 14:06:20,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:06:20,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 02:06:19" (1/3) ... [2022-07-26 14:06:20,045 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44084f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:06:20, skipping insertion in model container [2022-07-26 14:06:20,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:06:20,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:06:19" (2/3) ... [2022-07-26 14:06:20,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44084f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:06:20, skipping insertion in model container [2022-07-26 14:06:20,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:06:20,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:06:20" (3/3) ... [2022-07-26 14:06:20,047 INFO L322 chiAutomizerObserver]: Analyzing ICFG condvar.i [2022-07-26 14:06:20,083 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-26 14:06:20,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 78 transitions, 164 flow [2022-07-26 14:06:20,124 INFO L129 PetriNetUnfolder]: 5/76 cut-off events. [2022-07-26 14:06:20,125 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-26 14:06:20,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 76 events. 5/76 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2022-07-26 14:06:20,127 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 78 transitions, 164 flow [2022-07-26 14:06:20,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 76 transitions, 158 flow [2022-07-26 14:06:20,144 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-07-26 14:06:20,150 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 76 transitions, 158 flow [2022-07-26 14:06:20,152 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 76 transitions, 158 flow [2022-07-26 14:06:20,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 76 transitions, 158 flow [2022-07-26 14:06:20,162 INFO L129 PetriNetUnfolder]: 5/76 cut-off events. [2022-07-26 14:06:20,162 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-26 14:06:20,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 76 events. 5/76 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2022-07-26 14:06:20,171 INFO L116 LiptonReduction]: Number of co-enabled transitions 360 [2022-07-26 14:06:22,429 INFO L131 LiptonReduction]: Checked pairs total: 372 [2022-07-26 14:06:22,430 INFO L133 LiptonReduction]: Total number of compositions: 68 [2022-07-26 14:06:22,445 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2022-07-26 14:06:22,445 INFO L302 stractBuchiCegarLoop]: Hoare is false [2022-07-26 14:06:22,445 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-26 14:06:22,445 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-26 14:06:22,445 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-26 14:06:22,446 INFO L306 stractBuchiCegarLoop]: Difference is false [2022-07-26 14:06:22,446 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-26 14:06:22,446 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-26 14:06:22,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-26 14:06:22,479 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 6 [2022-07-26 14:06:22,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 14:06:22,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 14:06:22,486 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-26 14:06:22,486 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-26 14:06:22,486 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-26 14:06:22,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 15 states, but on-demand construction may add more states [2022-07-26 14:06:22,487 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 6 [2022-07-26 14:06:22,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 14:06:22,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 14:06:22,488 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-26 14:06:22,488 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-26 14:06:22,491 INFO L733 eck$LassoCheckResult]: Stem: 79#[ULTIMATE.startENTRY]don't care [262] ULTIMATE.startENTRY-->L712-2: Formula: (let ((.cse3 (select |v_#memory_int_98| 1)) (.cse0 (select |v_#memory_int_98| 2)) (.cse2 (select |v_#memory_int_98| |v_~#lock~0.base_49|)) (.cse1 (select |v_#memory_int_98| |v_~#cond~0.base_34|))) (and (= (select |v_#valid_87| 2) 1) (= |v_#NULL.base_10| 0) (= (select .cse0 5) 0) (= (select .cse1 (+ 16 |v_~#cond~0.offset_34|)) 0) (= (select .cse0 3) 46) (= (select .cse1 (+ 12 |v_~#cond~0.offset_34|)) 0) (= 48 (select |v_#length_66| 4)) (= (select |v_#valid_87| |v_ULTIMATE.start_main_~#t~0#1.base_41|) 0) (= (select .cse2 (+ |v_~#lock~0.offset_49| 8)) 0) (= 2 (select |v_#length_66| 1)) (= |v_#memory_int_97| (store |v_#memory_int_98| |v_ULTIMATE.start_main_~#t~0#1.base_41| (store (select |v_#memory_int_98| |v_ULTIMATE.start_main_~#t~0#1.base_41|) |v_ULTIMATE.start_main_~#t~0#1.offset_33| |v_ULTIMATE.start_main_#t~pre6#1_25|))) (= (select |v_#valid_87| 1) 1) (= (select .cse1 (+ 20 |v_~#cond~0.offset_34|)) 0) (= (select |v_#valid_87| 3) 1) (= v_~x_set~0_27 0) (= |v_~#cond~0.offset_34| 0) (= 3 |v_~#lock~0.base_49|) (= |v_ULTIMATE.start_main_~#t~0#1.offset_33| 0) (= (+ |v_#pthreadsForks_25| 1) |v_#pthreadsForks_24|) (= (store |v_#length_66| |v_ULTIMATE.start_main_~#t~0#1.base_41| 4) |v_#length_65|) (= (select .cse3 1) 0) (= |v_ULTIMATE.start_main_#t~pre6#1_25| |v_#pthreadsForks_25|) (< 0 |v_#StackHeapBarrier_23|) (= (select .cse2 |v_~#lock~0.offset_49|) 0) (= (select .cse1 (+ 8 |v_~#cond~0.offset_34|)) 0) (= (select .cse2 (+ 16 |v_~#lock~0.offset_49|)) 0) (= |v_~#lock~0.offset_49| 0) (= 104 (select .cse0 4)) (= (select .cse3 0) 48) (= 6 (select |v_#length_66| 2)) (= (select .cse1 (+ 28 |v_~#cond~0.offset_34|)) 0) (= (select |v_#valid_87| 4) 1) (= 0 (select .cse1 (+ 4 |v_~#cond~0.offset_34|))) (= |v_#NULL.offset_10| 0) (= (select .cse2 (+ |v_~#lock~0.offset_49| 12)) 0) (= v_~x~0_23 0) (= (select |v_#valid_87| 0) 0) (= 0 (select .cse1 |v_~#cond~0.offset_34|)) (= (select |v_#length_66| 3) 24) (= (select .cse0 1) 118) (= (store |v_#valid_87| |v_ULTIMATE.start_main_~#t~0#1.base_41| 1) |v_#valid_86|) (= |v_~#cond~0.base_34| 4) (= 99 (select .cse0 2)) (= 115 (select .cse0 0)) (= (select .cse2 (+ |v_~#lock~0.offset_49| 4)) 0) (< |v_#StackHeapBarrier_23| |v_ULTIMATE.start_main_~#t~0#1.base_41|) (= (select .cse1 (+ |v_~#cond~0.offset_34| 24)) 0))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_23|, #pthreadsForks=|v_#pthreadsForks_25|, #valid=|v_#valid_87|, #memory_int=|v_#memory_int_98|, #length=|v_#length_66|} OutVars{ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_25|, ~#lock~0.base=|v_~#lock~0.base_49|, ULTIMATE.start_main_#t~post8#1=|v_ULTIMATE.start_main_#t~post8#1_23|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_19|, ~#cond~0.offset=|v_~#cond~0.offset_34|, #NULL.offset=|v_#NULL.offset_10|, #NULL.base=|v_#NULL.base_10|, ~#cond~0.base=|v_~#cond~0.base_34|, #StackHeapBarrier=|v_#StackHeapBarrier_23|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_40|, #pthreadsForks=|v_#pthreadsForks_24|, ULTIMATE.start_main_~#t~0#1.offset=|v_ULTIMATE.start_main_~#t~0#1.offset_33|, #valid=|v_#valid_86|, ULTIMATE.start_main_#t~nondet7#1=|v_ULTIMATE.start_main_#t~nondet7#1_17|, #memory_int=|v_#memory_int_97|, ULTIMATE.start_main_#t~mem9#1=|v_ULTIMATE.start_main_#t~mem9#1_20|, ~#lock~0.offset=|v_~#lock~0.offset_49|, #length=|v_#length_65|, ~x_set~0=v_~x_set~0_27, ULTIMATE.start_main_~#t~0#1.base=|v_ULTIMATE.start_main_~#t~0#1.base_41|, ~x~0=v_~x~0_23} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre6#1, ~#lock~0.base, ULTIMATE.start_main_#t~post8#1, ULTIMATE.start_main_#res#1, ~#cond~0.offset, #NULL.offset, #NULL.base, ~#cond~0.base, ULTIMATE.start_main_~i~0#1, #pthreadsForks, ULTIMATE.start_main_~#t~0#1.offset, #valid, ULTIMATE.start_main_#t~nondet7#1, #memory_int, ULTIMATE.start_main_#t~mem9#1, ~#lock~0.offset, #length, ~x_set~0, ULTIMATE.start_main_~#t~0#1.base, ~x~0] 82#[L712-2]don't care [193] L712-2-->threadENTRY: Formula: (and (= v_threadThread1of1ForFork0_thidvar1_2 0) (= |v_threadThread1of1ForFork0_#in~arg.base_4| 0) (= |v_threadThread1of1ForFork0_#in~arg.offset_4| 0) (= |v_ULTIMATE.start_main_#t~pre6#1_6| v_threadThread1of1ForFork0_thidvar0_2)) InVars {ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_6|} OutVars{threadThread1of1ForFork0_#in~arg.offset=|v_threadThread1of1ForFork0_#in~arg.offset_4|, threadThread1of1ForFork0_~arg.base=v_threadThread1of1ForFork0_~arg.base_4, ULTIMATE.start_main_#t~pre6#1=|v_ULTIMATE.start_main_#t~pre6#1_6|, threadThread1of1ForFork0_~arg.offset=v_threadThread1of1ForFork0_~arg.offset_4, threadThread1of1ForFork0_#res.base=|v_threadThread1of1ForFork0_#res.base_4|, threadThread1of1ForFork0_#t~nondet4=|v_threadThread1of1ForFork0_#t~nondet4_6|, threadThread1of1ForFork0_thidvar0=v_threadThread1of1ForFork0_thidvar0_2, threadThread1of1ForFork0_#t~nondet5=|v_threadThread1of1ForFork0_#t~nondet5_6|, threadThread1of1ForFork0_#res.offset=|v_threadThread1of1ForFork0_#res.offset_4|, threadThread1of1ForFork0_#in~arg.base=|v_threadThread1of1ForFork0_#in~arg.base_4|, threadThread1of1ForFork0_thidvar1=v_threadThread1of1ForFork0_thidvar1_2} AuxVars[] AssignedVars[threadThread1of1ForFork0_#in~arg.offset, threadThread1of1ForFork0_~arg.base, threadThread1of1ForFork0_~arg.offset, threadThread1of1ForFork0_#res.base, threadThread1of1ForFork0_#t~nondet4, threadThread1of1ForFork0_thidvar0, threadThread1of1ForFork0_#t~nondet5, threadThread1of1ForFork0_#res.offset, threadThread1of1ForFork0_#in~arg.base, threadThread1of1ForFork0_thidvar1] 84#[L712-3, threadENTRY]don't care [241] threadENTRY-->L704-2: Formula: (let ((.cse0 (select |v_#pthreadsMutex_40| |v_~#lock~0.base_37|))) (and (= (select .cse0 |v_~#lock~0.offset_37|) 0) (= |v_threadThread1of1ForFork0_#in~arg.offset_7| v_threadThread1of1ForFork0_~arg.offset_7) (= |v_#pthreadsMutex_39| (store |v_#pthreadsMutex_40| |v_~#lock~0.base_37| (store .cse0 |v_~#lock~0.offset_37| 1))) (= v_threadThread1of1ForFork0_~arg.base_7 |v_threadThread1of1ForFork0_#in~arg.base_7|))) InVars {threadThread1of1ForFork0_#in~arg.offset=|v_threadThread1of1ForFork0_#in~arg.offset_7|, #pthreadsMutex=|v_#pthreadsMutex_40|, ~#lock~0.base=|v_~#lock~0.base_37|, ~#lock~0.offset=|v_~#lock~0.offset_37|, threadThread1of1ForFork0_#in~arg.base=|v_threadThread1of1ForFork0_#in~arg.base_7|} OutVars{threadThread1of1ForFork0_#in~arg.offset=|v_threadThread1of1ForFork0_#in~arg.offset_7|, #pthreadsMutex=|v_#pthreadsMutex_39|, threadThread1of1ForFork0_~arg.base=v_threadThread1of1ForFork0_~arg.base_7, ~#lock~0.base=|v_~#lock~0.base_37|, threadThread1of1ForFork0_~arg.offset=v_threadThread1of1ForFork0_~arg.offset_7, threadThread1of1ForFork0_#t~nondet4=|v_threadThread1of1ForFork0_#t~nondet4_9|, ~#lock~0.offset=|v_~#lock~0.offset_37|, threadThread1of1ForFork0_#in~arg.base=|v_threadThread1of1ForFork0_#in~arg.base_7|} AuxVars[] AssignedVars[#pthreadsMutex, threadThread1of1ForFork0_~arg.base, threadThread1of1ForFork0_~arg.offset, threadThread1of1ForFork0_#t~nondet4] 86#[L712-3, L704-2]don't care [2022-07-26 14:06:22,491 INFO L735 eck$LassoCheckResult]: Loop: 86#[L712-3, L704-2]don't care [235] L704-2-->L704-2: Formula: (and (= (mod v_~x_set~0_17 256) 0) (= |v_#pthreadsMutex_29| (store |v_#pthreadsMutex_31| |v_~#lock~0.base_31| (store (select |v_#pthreadsMutex_31| |v_~#lock~0.base_31|) |v_~#lock~0.offset_31| 1)))) InVars {#pthreadsMutex=|v_#pthreadsMutex_31|, ~#lock~0.base=|v_~#lock~0.base_31|, ~#lock~0.offset=|v_~#lock~0.offset_31|, ~x_set~0=v_~x_set~0_17} OutVars{#pthreadsMutex=|v_#pthreadsMutex_29|, ~#lock~0.base=|v_~#lock~0.base_31|, ~#lock~0.offset=|v_~#lock~0.offset_31|, threadThread1of1ForFork0_#t~nondet5=|v_threadThread1of1ForFork0_#t~nondet5_11|, ~x_set~0=v_~x_set~0_17} AuxVars[] AssignedVars[#pthreadsMutex, threadThread1of1ForFork0_#t~nondet5] 86#[L712-3, L704-2]don't care [2022-07-26 14:06:22,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:06:22,495 INFO L85 PathProgramCache]: Analyzing trace with hash 287797, now seen corresponding path program 1 times [2022-07-26 14:06:22,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 14:06:22,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383512293] [2022-07-26 14:06:22,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 14:06:22,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 14:06:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:06:22,576 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 14:06:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:06:22,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 14:06:22,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:06:22,608 INFO L85 PathProgramCache]: Analyzing trace with hash 266, now seen corresponding path program 1 times [2022-07-26 14:06:22,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 14:06:22,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957839016] [2022-07-26 14:06:22,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 14:06:22,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 14:06:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:06:22,616 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 14:06:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:06:22,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 14:06:22,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:06:22,621 INFO L85 PathProgramCache]: Analyzing trace with hash 8921942, now seen corresponding path program 1 times [2022-07-26 14:06:22,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 14:06:22,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341385555] [2022-07-26 14:06:22,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 14:06:22,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 14:06:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:06:22,642 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 14:06:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:06:22,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 14:06:23,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.07 02:06:23 BoogieIcfgContainer [2022-07-26 14:06:23,276 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-26 14:06:23,276 INFO L158 Benchmark]: Toolchain (without parser) took 4022.61ms. Allocated memory was 213.9MB in the beginning and 274.7MB in the end (delta: 60.8MB). Free memory was 185.5MB in the beginning and 207.6MB in the end (delta: -22.1MB). Peak memory consumption was 121.5MB. Max. memory is 8.0GB. [2022-07-26 14:06:23,277 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 213.9MB. Free memory is still 174.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 14:06:23,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.69ms. Allocated memory is still 213.9MB. Free memory was 185.2MB in the beginning and 177.5MB in the end (delta: 7.7MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. [2022-07-26 14:06:23,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.18ms. Allocated memory is still 213.9MB. Free memory was 177.5MB in the beginning and 175.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-26 14:06:23,278 INFO L158 Benchmark]: Boogie Preprocessor took 25.22ms. Allocated memory is still 213.9MB. Free memory was 175.4MB in the beginning and 174.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-26 14:06:23,278 INFO L158 Benchmark]: RCFGBuilder took 320.52ms. Allocated memory is still 213.9MB. Free memory was 174.1MB in the beginning and 161.8MB in the end (delta: 12.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-07-26 14:06:23,279 INFO L158 Benchmark]: BuchiAutomizer took 3237.98ms. Allocated memory was 213.9MB in the beginning and 274.7MB in the end (delta: 60.8MB). Free memory was 161.8MB in the beginning and 207.6MB in the end (delta: -45.7MB). Peak memory consumption was 98.9MB. Max. memory is 8.0GB. [2022-07-26 14:06:23,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 213.9MB. Free memory is still 174.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 389.69ms. Allocated memory is still 213.9MB. Free memory was 185.2MB in the beginning and 177.5MB in the end (delta: 7.7MB). Peak memory consumption was 10.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.18ms. Allocated memory is still 213.9MB. Free memory was 177.5MB in the beginning and 175.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.22ms. Allocated memory is still 213.9MB. Free memory was 175.4MB in the beginning and 174.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 320.52ms. Allocated memory is still 213.9MB. Free memory was 174.1MB in the beginning and 161.8MB in the end (delta: 12.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 3237.98ms. Allocated memory was 213.9MB in the beginning and 274.7MB in the end (delta: 60.8MB). Free memory was 161.8MB in the beginning and 207.6MB in the end (delta: -45.7MB). Peak memory consumption was 98.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 2.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 704]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result={0:0}, \result=0, arg={0:0}, arg={0:0}, cond={4:0}, i=0, lock={3:0}, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@237462e8 in0,-21945, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@560aa865=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72e45261=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@18a0ded=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@124e1c08=0, t={27100:0}, x=0, x_set=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 704]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L697] 0 pthread_mutex_t lock; [L698] 0 pthread_cond_t cond; [L699] 0 int x; [L700] 0 _Bool x_set = 0; [L711] 0 pthread_t t; [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) Loop: [L704] COND TRUE !x_set End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 75 PlacesBefore, 13 PlacesAfterwards, 76 TransitionsBefore, 12 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 6 FixpointIterations, 45 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 68 TotalNumberOfCompositions, 372 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 314, positive: 289, positive conditional: 0, positive unconditional: 289, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 204, positive: 195, positive conditional: 0, positive unconditional: 195, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 314, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 204, unknown conditional: 0, unknown unconditional: 204] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 RESULT: Ultimate proved your program to be incorrect! [2022-07-26 14:06:23,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...