/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-lit/fk2012.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-0d686a6 [2022-07-26 14:03:18,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 14:03:18,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 14:03:19,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-07-26 14:03:19,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 14:03:19,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 14:03:19,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 14:03:19,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 14:03:19,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 14:03:19,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 14:03:19,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 14:03:19,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 14:03:19,043 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 14:03:19,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 14:03:19,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 14:03:19,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 14:03:19,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 14:03:19,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 14:03:19,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 14:03:19,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 14:03:19,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 14:03:19,073 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 14:03:19,092 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 14:03:19,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 14:03:19,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 14:03:19,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 14:03:19,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 14:03:19,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 14:03:19,094 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 14:03:19,094 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 14:03:19,094 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 14:03:19,094 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 14:03:19,094 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 14:03:19,094 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 14:03:19,094 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 14:03:19,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 14:03:19,094 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 14:03:19,095 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 14:03:19,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 14:03:19,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 14:03:19,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 14:03:19,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 14:03:19,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 14:03:19,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 14:03:19,112 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 14:03:19,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 14:03:19,112 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 14:03:19,112 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 14:03:19,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 14:03:19,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 14:03:19,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 14:03:19,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 14:03:19,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 14:03:19,113 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-07-26 14:03:19,114 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 14:03:19,114 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 14:03:19,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 14:03:19,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 14:03:19,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 14:03:19,359 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 14:03:19,359 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 14:03:19,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fk2012.i [2022-07-26 14:03:19,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40cc5b2f1/7a9a95e015a043368d9b0833fdeba283/FLAG526831a07 [2022-07-26 14:03:19,845 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 14:03:19,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fk2012.i [2022-07-26 14:03:19,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40cc5b2f1/7a9a95e015a043368d9b0833fdeba283/FLAG526831a07 [2022-07-26 14:03:19,890 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40cc5b2f1/7a9a95e015a043368d9b0833fdeba283 [2022-07-26 14:03:19,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 14:03:19,892 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 14:03:19,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 14:03:19,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 14:03:19,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 14:03:19,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:03:19" (1/1) ... [2022-07-26 14:03:19,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae5c11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:19, skipping insertion in model container [2022-07-26 14:03:19,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 02:03:19" (1/1) ... [2022-07-26 14:03:19,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 14:03:19,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 14:03:20,137 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-lit/fk2012.i[800,813] [2022-07-26 14:03:20,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:03:20,344 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 14:03:20,355 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-lit/fk2012.i[800,813] [2022-07-26 14:03:20,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 14:03:20,429 INFO L208 MainTranslator]: Completed translation [2022-07-26 14:03:20,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:20 WrapperNode [2022-07-26 14:03:20,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 14:03:20,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 14:03:20,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 14:03:20,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 14:03:20,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:20" (1/1) ... [2022-07-26 14:03:20,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:20" (1/1) ... [2022-07-26 14:03:20,473 INFO L137 Inliner]: procedures = 277, calls = 35, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 156 [2022-07-26 14:03:20,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 14:03:20,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 14:03:20,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 14:03:20,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 14:03:20,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:20" (1/1) ... [2022-07-26 14:03:20,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:20" (1/1) ... [2022-07-26 14:03:20,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:20" (1/1) ... [2022-07-26 14:03:20,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:20" (1/1) ... [2022-07-26 14:03:20,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:20" (1/1) ... [2022-07-26 14:03:20,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:20" (1/1) ... [2022-07-26 14:03:20,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:20" (1/1) ... [2022-07-26 14:03:20,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 14:03:20,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 14:03:20,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 14:03:20,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 14:03:20,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:20" (1/1) ... [2022-07-26 14:03:20,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 14:03:20,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 14:03:20,523 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 14:03:20,525 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 14:03:20,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-26 14:03:20,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 14:03:20,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 14:03:20,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-26 14:03:20,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 14:03:20,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 14:03:20,558 INFO L130 BoogieDeclarations]: Found specification of procedure producer [2022-07-26 14:03:20,558 INFO L138 BoogieDeclarations]: Found implementation of procedure producer [2022-07-26 14:03:20,558 INFO L130 BoogieDeclarations]: Found specification of procedure consumer [2022-07-26 14:03:20,558 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer [2022-07-26 14:03:20,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 14:03:20,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 14:03:20,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 14:03:20,559 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 14:03:20,641 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 14:03:20,642 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 14:03:20,878 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 14:03:20,947 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 14:03:20,947 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-26 14:03:20,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:03:20 BoogieIcfgContainer [2022-07-26 14:03:20,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 14:03:20,950 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 14:03:20,950 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 14:03:20,953 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 14:03:20,954 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:03:20,954 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 02:03:19" (1/3) ... [2022-07-26 14:03:20,954 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6794d603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:03:20, skipping insertion in model container [2022-07-26 14:03:20,955 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:03:20,955 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 02:03:20" (2/3) ... [2022-07-26 14:03:20,955 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6794d603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 02:03:20, skipping insertion in model container [2022-07-26 14:03:20,955 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 14:03:20,955 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 02:03:20" (3/3) ... [2022-07-26 14:03:20,956 INFO L322 chiAutomizerObserver]: Analyzing ICFG fk2012.i [2022-07-26 14:03:21,017 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-26 14:03:21,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 118 transitions, 246 flow [2022-07-26 14:03:21,105 INFO L129 PetriNetUnfolder]: 23/254 cut-off events. [2022-07-26 14:03:21,105 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-26 14:03:21,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 254 events. 23/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 963 event pairs, 1 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 117. Up to 8 conditions per place. [2022-07-26 14:03:21,113 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 118 transitions, 246 flow [2022-07-26 14:03:21,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 118 transitions, 246 flow [2022-07-26 14:03:21,125 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-07-26 14:03:21,133 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 118 transitions, 246 flow [2022-07-26 14:03:21,135 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 118 transitions, 246 flow [2022-07-26 14:03:21,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 118 transitions, 246 flow [2022-07-26 14:03:21,168 INFO L129 PetriNetUnfolder]: 23/254 cut-off events. [2022-07-26 14:03:21,168 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-26 14:03:21,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 254 events. 23/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 966 event pairs, 1 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 117. Up to 8 conditions per place. [2022-07-26 14:03:21,178 INFO L116 LiptonReduction]: Number of co-enabled transitions 6184 [2022-07-26 14:03:23,027 INFO L131 LiptonReduction]: Checked pairs total: 9490 [2022-07-26 14:03:23,027 INFO L133 LiptonReduction]: Total number of compositions: 97 [2022-07-26 14:03:23,045 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2022-07-26 14:03:23,046 INFO L302 stractBuchiCegarLoop]: Hoare is false [2022-07-26 14:03:23,046 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-26 14:03:23,046 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-26 14:03:23,046 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-26 14:03:23,046 INFO L306 stractBuchiCegarLoop]: Difference is false [2022-07-26 14:03:23,046 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-26 14:03:23,047 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-26 14:03:23,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-26 14:03:23,196 INFO L131 ngComponentsAnalysis]: Automaton has 242 accepting balls. 476 [2022-07-26 14:03:23,197 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 14:03:23,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 14:03:23,201 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-26 14:03:23,201 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-26 14:03:23,201 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-26 14:03:23,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 838 states, but on-demand construction may add more states [2022-07-26 14:03:23,219 INFO L131 ngComponentsAnalysis]: Automaton has 242 accepting balls. 476 [2022-07-26 14:03:23,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 14:03:23,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 14:03:23,220 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-26 14:03:23,220 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-26 14:03:23,224 INFO L733 eck$LassoCheckResult]: Stem: 116#[ULTIMATE.startENTRY]don't care [632] ULTIMATE.startENTRY-->L1066-4: Formula: (let ((.cse0 (select |v_#memory_int_31| 1))) (and (= v_~lock1~0_169 0) (= 2 (select |v_#length_44| 1)) (= (select |v_#valid_61| |v_ULTIMATE.start_main_~#t~0#1.base_41|) 0) (= |v_#NULL.base_10| 0) (< |v_#StackHeapBarrier_19| |v_ULTIMATE.start_main_~#t~0#1.base_41|) (= (select .cse0 1) 0) (= (select |v_#valid_61| 0) 0) (= (select |v_#valid_61| 1) 1) (= (select .cse0 0) 48) (= v_~lock2~0_105 0) (= |v_ULTIMATE.start_main_~#t~0#1.offset_35| 0) (= (store |v_#length_44| |v_ULTIMATE.start_main_~#t~0#1.base_41| 4) |v_#length_43|) (= |v_ULTIMATE.start_main_~i~0#1_17| 0) (< 0 |v_#StackHeapBarrier_19|) (= 9 (select |v_#length_44| 2)) (= |v_#NULL.offset_10| 0) (= v_~counter~0_60 0) (= (select |v_#valid_61| 2) 1) (= (store |v_#valid_61| |v_ULTIMATE.start_main_~#t~0#1.base_41| 1) |v_#valid_60|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_19|, #valid=|v_#valid_61|, #memory_int=|v_#memory_int_31|, #length=|v_#length_44|} OutVars{~counter~0=v_~counter~0_60, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_13|, ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_25|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_23|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_24|, #NULL.offset=|v_#NULL.offset_10|, ~lock1~0=v_~lock1~0_169, ~lock2~0=v_~lock2~0_105, ULTIMATE.start_main_#t~nondet12#1=|v_ULTIMATE.start_main_#t~nondet12#1_13|, #NULL.base=|v_#NULL.base_10|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_17|, #StackHeapBarrier=|v_#StackHeapBarrier_19|, ULTIMATE.start_main_~#t~0#1.offset=|v_ULTIMATE.start_main_~#t~0#1.offset_35|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_40|, #valid=|v_#valid_60|, #memory_int=|v_#memory_int_31|, #length=|v_#length_43|, ULTIMATE.start_main_~#t~0#1.base=|v_ULTIMATE.start_main_~#t~0#1.base_41|} AuxVars[] AssignedVars[~counter~0, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~pre11#1, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#res#1, #NULL.offset, ~lock1~0, ~lock2~0, ULTIMATE.start_main_#t~nondet12#1, #NULL.base, ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~#t~0#1.offset, ULTIMATE.start_main_#t~nondet8#1, #valid, #length, ULTIMATE.start_main_~#t~0#1.base] 119#[L1066-4]don't care [625] L1066-4-->L1069-3: Formula: (and (= |v_ULTIMATE.start_main_#t~pre11#1_21| |v_#pthreadsForks_28|) (= |v_ULTIMATE.start_main_#t~nondet8#1_35| 0) (<= 0 |v_ULTIMATE.start_main_~#t~0#1.offset_31|) (= (+ |v_#pthreadsForks_28| 1) |v_#pthreadsForks_27|) (<= (+ |v_ULTIMATE.start_main_~#t~0#1.offset_31| 4) (select |v_#length_35| |v_ULTIMATE.start_main_~#t~0#1.base_37|)) (= (select |v_#valid_52| |v_ULTIMATE.start_main_~#t~0#1.base_37|) 1) (= (store |v_#memory_int_26| |v_ULTIMATE.start_main_~#t~0#1.base_37| (store (select |v_#memory_int_26| |v_ULTIMATE.start_main_~#t~0#1.base_37|) |v_ULTIMATE.start_main_~#t~0#1.offset_31| |v_ULTIMATE.start_main_#t~pre11#1_21|)) |v_#memory_int_25|)) InVars {#pthreadsForks=|v_#pthreadsForks_28|, ULTIMATE.start_main_~#t~0#1.offset=|v_ULTIMATE.start_main_~#t~0#1.offset_31|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_35|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_26|, #length=|v_#length_35|, ULTIMATE.start_main_~#t~0#1.base=|v_ULTIMATE.start_main_~#t~0#1.base_37|} OutVars{ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_21|, #pthreadsForks=|v_#pthreadsForks_27|, ULTIMATE.start_main_~#t~0#1.offset=|v_ULTIMATE.start_main_~#t~0#1.offset_31|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_25|, #length=|v_#length_35|, ULTIMATE.start_main_~#t~0#1.base=|v_ULTIMATE.start_main_~#t~0#1.base_37|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre11#1, #pthreadsForks, ULTIMATE.start_main_#t~nondet8#1, #memory_int] 123#[L1069-3]don't care [535] L1069-3-->consumerENTRY: Formula: (and (= v_consumerThread1of1ForFork1_thidvar1_2 0) (= |v_consumerThread1of1ForFork1_#in~arg#1.base_4| 0) (= v_consumerThread1of1ForFork1_thidvar0_2 |v_ULTIMATE.start_main_#t~pre11#1_6|) (= |v_consumerThread1of1ForFork1_#in~arg#1.offset_4| 0)) InVars {ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_6|} OutVars{consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_8|, consumerThread1of1ForFork1___VERIFIER_assert_#in~cond#1=|v_consumerThread1of1ForFork1___VERIFIER_assert_#in~cond#1_6|, consumerThread1of1ForFork1_~arg#1.base=|v_consumerThread1of1ForFork1_~arg#1.base_4|, ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_6|, consumerThread1of1ForFork1_~arg#1.offset=|v_consumerThread1of1ForFork1_~arg#1.offset_4|, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_8|, consumerThread1of1ForFork1___VERIFIER_assert_~cond#1=|v_consumerThread1of1ForFork1___VERIFIER_assert_~cond#1_10|, consumerThread1of1ForFork1_#res#1.base=|v_consumerThread1of1ForFork1_#res#1.base_4|, consumerThread1of1ForFork1_thidvar1=v_consumerThread1of1ForFork1_thidvar1_2, consumerThread1of1ForFork1_thidvar0=v_consumerThread1of1ForFork1_thidvar0_2, consumerThread1of1ForFork1_#res#1.offset=|v_consumerThread1of1ForFork1_#res#1.offset_4|, consumerThread1of1ForFork1_#in~arg#1.offset=|v_consumerThread1of1ForFork1_#in~arg#1.offset_4|, consumerThread1of1ForFork1_#t~post7#1=|v_consumerThread1of1ForFork1_#t~post7#1_8|, consumerThread1of1ForFork1_#in~arg#1.base=|v_consumerThread1of1ForFork1_#in~arg#1.base_4|} AuxVars[] AssignedVars[consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1, consumerThread1of1ForFork1___VERIFIER_assert_#in~cond#1, consumerThread1of1ForFork1_~arg#1.base, consumerThread1of1ForFork1_~arg#1.offset, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1, consumerThread1of1ForFork1___VERIFIER_assert_~cond#1, consumerThread1of1ForFork1_#res#1.base, consumerThread1of1ForFork1_thidvar1, consumerThread1of1ForFork1_thidvar0, consumerThread1of1ForFork1_#res#1.offset, consumerThread1of1ForFork1_#in~arg#1.offset, consumerThread1of1ForFork1_#t~post7#1, consumerThread1of1ForFork1_#in~arg#1.base] 127#[consumerENTRY, L1069-4]don't care [501] consumerENTRY-->L1049-2: Formula: (and (= |v_consumerThread1of1ForFork1_~arg#1.offset_1| |v_consumerThread1of1ForFork1_#in~arg#1.offset_1|) (= |v_consumerThread1of1ForFork1_~arg#1.base_1| |v_consumerThread1of1ForFork1_#in~arg#1.base_1|)) InVars {consumerThread1of1ForFork1_#in~arg#1.base=|v_consumerThread1of1ForFork1_#in~arg#1.base_1|, consumerThread1of1ForFork1_#in~arg#1.offset=|v_consumerThread1of1ForFork1_#in~arg#1.offset_1|} OutVars{consumerThread1of1ForFork1_#in~arg#1.base=|v_consumerThread1of1ForFork1_#in~arg#1.base_1|, consumerThread1of1ForFork1_#in~arg#1.offset=|v_consumerThread1of1ForFork1_#in~arg#1.offset_1|, consumerThread1of1ForFork1_~arg#1.base=|v_consumerThread1of1ForFork1_~arg#1.base_1|, consumerThread1of1ForFork1_~arg#1.offset=|v_consumerThread1of1ForFork1_~arg#1.offset_1|} AuxVars[] AssignedVars[consumerThread1of1ForFork1_~arg#1.base, consumerThread1of1ForFork1_~arg#1.offset] 131#[L1069-4, L1049-2]don't care [2022-07-26 14:03:23,224 INFO L735 eck$LassoCheckResult]: Loop: 131#[L1069-4, L1049-2]don't care [596] L1049-2-->L1051: Formula: (and (= v_~lock1~0_133 1) (= |v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_21| (ite (= v_~lock1~0_134 0) 1 0)) (= |v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_21| |v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_21|) (not (= |v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_21| 0))) InVars {~lock1~0=v_~lock1~0_134} OutVars{consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_21|, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_21|, ~lock1~0=v_~lock1~0_133} AuxVars[] AssignedVars[consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1, ~lock1~0] 139#[L1051, L1069-4]don't care [513] L1051-->L1052: Formula: (not (< 0 v_~counter~0_12)) InVars {~counter~0=v_~counter~0_12} OutVars{~counter~0=v_~counter~0_12} AuxVars[] AssignedVars[] 165#[L1052, L1069-4]don't care [594] L1052-->L1049-2: Formula: (and (= v_~lock1~0_129 0) (= |v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_19| (ite (= v_~lock1~0_130 1) 1 0)) (= |v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_19| |v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_19|) (not (= |v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_19| 0))) InVars {~lock1~0=v_~lock1~0_130} OutVars{consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_19|, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_19|, ~lock1~0=v_~lock1~0_129} AuxVars[] AssignedVars[consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1, ~lock1~0] 131#[L1069-4, L1049-2]don't care [2022-07-26 14:03:23,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:03:23,229 INFO L85 PathProgramCache]: Analyzing trace with hash 20369144, now seen corresponding path program 1 times [2022-07-26 14:03:23,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 14:03:23,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952784753] [2022-07-26 14:03:23,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 14:03:23,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 14:03:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:03:23,313 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 14:03:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:03:23,353 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 14:03:23,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:03:23,355 INFO L85 PathProgramCache]: Analyzing trace with hash 619044, now seen corresponding path program 1 times [2022-07-26 14:03:23,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 14:03:23,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319463157] [2022-07-26 14:03:23,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 14:03:23,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 14:03:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:03:23,382 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 14:03:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:03:23,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 14:03:23,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 14:03:23,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1227369421, now seen corresponding path program 1 times [2022-07-26 14:03:23,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 14:03:23,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593251770] [2022-07-26 14:03:23,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 14:03:23,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 14:03:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:03:23,407 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 14:03:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 14:03:23,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 14:03:23,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.07 02:03:23 BoogieIcfgContainer [2022-07-26 14:03:23,783 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-26 14:03:23,785 INFO L158 Benchmark]: Toolchain (without parser) took 3890.96ms. Allocated memory was 169.9MB in the beginning and 257.9MB in the end (delta: 88.1MB). Free memory was 110.4MB in the beginning and 111.8MB in the end (delta: -1.4MB). Peak memory consumption was 88.0MB. Max. memory is 8.0GB. [2022-07-26 14:03:23,786 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 169.9MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 14:03:23,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 534.09ms. Allocated memory was 169.9MB in the beginning and 257.9MB in the end (delta: 88.1MB). Free memory was 110.2MB in the beginning and 212.0MB in the end (delta: -101.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-07-26 14:03:23,787 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.98ms. Allocated memory is still 257.9MB. Free memory was 211.5MB in the beginning and 209.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-26 14:03:23,788 INFO L158 Benchmark]: Boogie Preprocessor took 22.17ms. Allocated memory is still 257.9MB. Free memory was 209.4MB in the beginning and 207.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-26 14:03:23,790 INFO L158 Benchmark]: RCFGBuilder took 452.03ms. Allocated memory is still 257.9MB. Free memory was 207.3MB in the beginning and 187.9MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-07-26 14:03:23,793 INFO L158 Benchmark]: BuchiAutomizer took 2832.75ms. Allocated memory is still 257.9MB. Free memory was 187.4MB in the beginning and 111.8MB in the end (delta: 75.6MB). Peak memory consumption was 76.1MB. Max. memory is 8.0GB. [2022-07-26 14:03:23,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 169.9MB. Free memory is still 128.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 534.09ms. Allocated memory was 169.9MB in the beginning and 257.9MB in the end (delta: 88.1MB). Free memory was 110.2MB in the beginning and 212.0MB in the end (delta: -101.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.98ms. Allocated memory is still 257.9MB. Free memory was 211.5MB in the beginning and 209.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.17ms. Allocated memory is still 257.9MB. Free memory was 209.4MB in the beginning and 207.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 452.03ms. Allocated memory is still 257.9MB. Free memory was 207.3MB in the beginning and 187.9MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * BuchiAutomizer took 2832.75ms. Allocated memory is still 257.9MB. Free memory was 187.4MB in the beginning and 111.8MB in the end (delta: 75.6MB). Peak memory consumption was 76.1MB. 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 2.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: 2.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 1]: 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 {\old(cond)=1, \old(cond)=0, \result=0, \result={0:0}, arg={0:0}, arg={0:0}, cond=1, cond=0, counter=0, i=0, lock1=0, lock2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10df542a in18519,0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@650175cc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75bfdf1e in0,0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@26fd9c3d=0, t={3:0}} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L1000] 0 volatile int lock1; [L1001] 0 volatile int lock2; [L1002] 0 volatile int counter; [L1060] 0 pthread_t t; [L1061] 0 counter = 0 [L1062] 0 lock1 = 0 [L1063] 0 lock2 = 0 [L1064] 0 int i =0; [L1065] COND TRUE 0 1 [L1066] COND FALSE 0 !(__VERIFIER_nondet_int()) [L1069] FCALL, FORK 0 pthread_create(&t, 0, consumer, 0) Loop: [L1049] COND TRUE 1 [L1050] CALL acquire1() [L1005] CALL assume_abort_if_not(lock1 == 0) [L16] COND TRUE !cond [L1005] RET assume_abort_if_not(lock1 == 0) [L1006] lock1 = 1 [L1050] RET acquire1() [L1051] COND FALSE !(counter > 0) [L1052] CALL release1() [L1011] CALL assume_abort_if_not(lock1 == 1) [L16] COND FALSE !(!cond) [L1011] RET assume_abort_if_not(lock1 == 1) [L1012] lock1 = 0 [L1052] RET release1() End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 113 PlacesBefore, 32 PlacesAfterwards, 118 TransitionsBefore, 33 TransitionsAfterwards, 6184 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 4 ChoiceCompositions, 97 TotalNumberOfCompositions, 9490 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7135, positive: 6986, positive conditional: 0, positive unconditional: 6986, negative: 149, negative conditional: 0, negative unconditional: 149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3399, positive: 3363, positive conditional: 0, positive unconditional: 3363, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7135, positive: 3623, positive conditional: 0, positive unconditional: 3623, negative: 113, negative conditional: 0, negative unconditional: 113, unknown: 3399, unknown conditional: 0, unknown unconditional: 3399] , Statistics on independence cache: Total cache size (in pairs): 230, Positive cache size: 213, Positive conditional cache size: 0, Positive unconditional cache size: 213, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 RESULT: Ultimate proved your program to be incorrect! [2022-07-26 14:03:23,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...