/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-noLbe.epf -i ../../../trunk/examples/svcomp/pthread-lit/fk2012.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-0d686a6 [2022-07-26 13:22:17,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 13:22:17,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 13:22:17,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-07-26 13:22:18,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 13:22:18,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 13:22:18,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 13:22:18,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 13:22:18,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 13:22:18,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 13:22:18,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 13:22:18,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 13:22:18,023 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 13:22:18,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 13:22:18,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 13:22:18,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 13:22:18,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 13:22:18,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 13:22:18,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 13:22:18,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 13:22:18,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 13:22:18,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2022-07-26 13:22:18,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 13:22:18,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 13:22:18,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 13:22:18,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 13:22:18,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 13:22:18,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 13:22:18,067 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 13:22:18,068 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 13:22:18,068 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 13:22:18,068 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 13:22:18,068 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 13:22:18,069 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 13:22:18,069 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 13:22:18,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 13:22:18,069 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 13:22:18,069 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 13:22:18,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 13:22:18,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 13:22:18,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 13:22:18,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 13:22:18,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 13:22:18,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 13:22:18,070 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 13:22:18,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 13:22:18,070 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 13:22:18,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 13:22:18,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 13:22:18,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 13:22:18,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 13:22:18,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 13:22:18,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 13:22:18,071 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-26 13:22:18,072 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 13:22:18,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 13:22:18,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 13:22:18,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 13:22:18,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 13:22:18,287 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 13:22:18,288 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 13:22:18,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fk2012.i [2022-07-26 13:22:18,332 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9f7cb08/fa2b0b946320484896fb32e534326192/FLAGb3e3a73e1 [2022-07-26 13:22:18,724 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 13:22:18,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fk2012.i [2022-07-26 13:22:18,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9f7cb08/fa2b0b946320484896fb32e534326192/FLAGb3e3a73e1 [2022-07-26 13:22:18,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9f7cb08/fa2b0b946320484896fb32e534326192 [2022-07-26 13:22:18,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 13:22:18,776 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 13:22:18,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 13:22:18,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 13:22:18,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 13:22:18,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:22:18" (1/1) ... [2022-07-26 13:22:18,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6277480a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:18, skipping insertion in model container [2022-07-26 13:22:18,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:22:18" (1/1) ... [2022-07-26 13:22:18,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 13:22:18,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 13:22:19,025 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 13:22:19,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 13:22:19,244 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 13:22:19,256 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 13:22:19,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 13:22:19,347 INFO L208 MainTranslator]: Completed translation [2022-07-26 13:22:19,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:19 WrapperNode [2022-07-26 13:22:19,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 13:22:19,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 13:22:19,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 13:22:19,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 13:22:19,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:19" (1/1) ... [2022-07-26 13:22:19,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:19" (1/1) ... [2022-07-26 13:22:19,388 INFO L137 Inliner]: procedures = 277, calls = 35, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 156 [2022-07-26 13:22:19,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 13:22:19,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 13:22:19,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 13:22:19,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 13:22:19,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:19" (1/1) ... [2022-07-26 13:22:19,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:19" (1/1) ... [2022-07-26 13:22:19,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:19" (1/1) ... [2022-07-26 13:22:19,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:19" (1/1) ... [2022-07-26 13:22:19,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:19" (1/1) ... [2022-07-26 13:22:19,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:19" (1/1) ... [2022-07-26 13:22:19,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:19" (1/1) ... [2022-07-26 13:22:19,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 13:22:19,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 13:22:19,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 13:22:19,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 13:22:19,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:19" (1/1) ... [2022-07-26 13:22:19,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:22:19,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:22:19,485 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 13:22:19,496 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 13:22:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-26 13:22:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 13:22:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 13:22:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-26 13:22:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 13:22:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 13:22:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure producer [2022-07-26 13:22:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure producer [2022-07-26 13:22:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure consumer [2022-07-26 13:22:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer [2022-07-26 13:22:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 13:22:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 13:22:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 13:22:19,528 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 13:22:19,630 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 13:22:19,631 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 13:22:19,794 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 13:22:19,878 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 13:22:19,878 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-26 13:22:19,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:22:19 BoogieIcfgContainer [2022-07-26 13:22:19,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 13:22:19,881 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 13:22:19,881 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 13:22:19,885 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 13:22:19,885 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:22:19,885 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 01:22:18" (1/3) ... [2022-07-26 13:22:19,886 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70454dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:22:19, skipping insertion in model container [2022-07-26 13:22:19,886 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:22:19,886 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:22:19" (2/3) ... [2022-07-26 13:22:19,887 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70454dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:22:19, skipping insertion in model container [2022-07-26 13:22:19,887 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:22:19,887 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:22:19" (3/3) ... [2022-07-26 13:22:19,888 INFO L322 chiAutomizerObserver]: Analyzing ICFG fk2012.i [2022-07-26 13:22:19,993 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-26 13:22:20,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 118 transitions, 246 flow [2022-07-26 13:22:20,101 INFO L129 PetriNetUnfolder]: 23/254 cut-off events. [2022-07-26 13:22:20,102 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-26 13:22:20,108 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 13:22:20,108 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 118 transitions, 246 flow [2022-07-26 13:22:20,117 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 118 transitions, 246 flow [2022-07-26 13:22:20,128 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2022-07-26 13:22:20,128 INFO L302 stractBuchiCegarLoop]: Hoare is false [2022-07-26 13:22:20,128 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-26 13:22:20,128 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-26 13:22:20,128 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-26 13:22:20,128 INFO L306 stractBuchiCegarLoop]: Difference is false [2022-07-26 13:22:20,129 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-26 13:22:20,129 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-26 13:22:20,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-26 13:22:21,848 INFO L131 ngComponentsAnalysis]: Automaton has 2459 accepting balls. 12245 [2022-07-26 13:22:21,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 13:22:21,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 13:22:21,854 INFO L150 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-26 13:22:21,854 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-26 13:22:21,854 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-26 13:22:21,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 26146 states, but on-demand construction may add more states [2022-07-26 13:22:22,276 INFO L131 ngComponentsAnalysis]: Automaton has 2459 accepting balls. 12245 [2022-07-26 13:22:22,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-26 13:22:22,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-26 13:22:22,279 INFO L150 hiAutomatonCegarLoop]: Counterexample stem 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] [2022-07-26 13:22:22,279 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-26 13:22:22,286 INFO L733 eck$LassoCheckResult]: Stem: 116#[ULTIMATE.startENTRY]don't care [441] ULTIMATE.startENTRY-->L-1: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 119#[L-1]don't care [372] L-1-->L-1-1: Formula: (and (= |v_#NULL.base_1| 0) (= |v_#NULL.offset_1| 0)) InVars {} OutVars{#NULL.offset=|v_#NULL.offset_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] 121#[L-1-1]don't care [450] L-1-1-->L-1-2: Formula: (= (select |v_#valid_1| 0) 0) InVars {#valid=|v_#valid_1|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[] 123#[L-1-2]don't care [453] L-1-2-->L12: Formula: (< 0 |v_#StackHeapBarrier_1|) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|} AuxVars[] AssignedVars[] 125#[L12]don't care [413] L12-->L12-1: Formula: (and (= (select |v_#valid_2| 1) 1) (= 2 (select |v_#length_1| 1))) InVars {#length=|v_#length_1|, #valid=|v_#valid_2|} OutVars{#length=|v_#length_1|, #valid=|v_#valid_2|} AuxVars[] AssignedVars[] 127#[L12-1]don't care [426] L12-1-->L12-2: Formula: (= 48 (select (select |v_#memory_int_1| 1) 0)) InVars {#memory_int=|v_#memory_int_1|} OutVars{#memory_int=|v_#memory_int_1|} AuxVars[] AssignedVars[] 129#[L12-2]don't care [425] L12-2-->L12-3: Formula: (= (select (select |v_#memory_int_2| 1) 1) 0) InVars {#memory_int=|v_#memory_int_2|} OutVars{#memory_int=|v_#memory_int_2|} AuxVars[] AssignedVars[] 131#[L12-3]don't care [444] L12-3-->L12-4: Formula: (and (= 9 (select |v_#length_2| 2)) (= (select |v_#valid_3| 2) 1)) InVars {#length=|v_#length_2|, #valid=|v_#valid_3|} OutVars{#length=|v_#length_2|, #valid=|v_#valid_3|} AuxVars[] AssignedVars[] 133#[L12-4]don't care [434] L12-4-->L1001: Formula: (= v_~lock1~0_7 0) InVars {} OutVars{~lock1~0=v_~lock1~0_7} AuxVars[] AssignedVars[~lock1~0] 135#[L1001]don't care [367] L1001-->L1002: Formula: (= v_~lock2~0_7 0) InVars {} OutVars{~lock2~0=v_~lock2~0_7} AuxVars[] AssignedVars[~lock2~0] 137#[L1002]don't care [407] L1002-->L-1-3: Formula: (= v_~counter~0_9 0) InVars {} OutVars{~counter~0=v_~counter~0_9} AuxVars[] AssignedVars[~counter~0] 139#[L-1-3]don't care [454] L-1-3-->L-1-4: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 141#[L-1-4]don't care [377] L-1-4-->L-1-5: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 143#[L-1-5]don't care [356] L-1-5-->L-1-6: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1] 145#[L-1-6]don't care [432] L-1-6-->L1060: Formula: true InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_1|, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_1|, ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_1|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_1|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_1|, ULTIMATE.start_main_~#t~0#1.offset=|v_ULTIMATE.start_main_~#t~0#1.offset_1|, ULTIMATE.start_main_#t~nondet12#1=|v_ULTIMATE.start_main_#t~nondet12#1_1|, ULTIMATE.start_main_~#t~0#1.base=|v_ULTIMATE.start_main_~#t~0#1.base_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~pre11#1, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#t~nondet8#1, ULTIMATE.start_main_~#t~0#1.offset, ULTIMATE.start_main_#t~nondet12#1, ULTIMATE.start_main_~#t~0#1.base] 147#[L1060]don't care [411] L1060-->L1060-1: Formula: (and (not (= |v_ULTIMATE.start_main_~#t~0#1.base_2| 0)) (< |v_#StackHeapBarrier_2| |v_ULTIMATE.start_main_~#t~0#1.base_2|) (= |v_ULTIMATE.start_main_~#t~0#1.offset_2| 0) (= |v_#length_3| (store |v_#length_4| |v_ULTIMATE.start_main_~#t~0#1.base_2| 4)) (= |v_#valid_4| (store |v_#valid_5| |v_ULTIMATE.start_main_~#t~0#1.base_2| 1)) (= (select |v_#valid_5| |v_ULTIMATE.start_main_~#t~0#1.base_2|) 0)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_4|, #valid=|v_#valid_5|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_2|, #length=|v_#length_3|, ULTIMATE.start_main_~#t~0#1.base=|v_ULTIMATE.start_main_~#t~0#1.base_2|, ULTIMATE.start_main_~#t~0#1.offset=|v_ULTIMATE.start_main_~#t~0#1.offset_2|, #valid=|v_#valid_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t~0#1.offset, #valid, #length, ULTIMATE.start_main_~#t~0#1.base] 149#[L1060-1]don't care [438] L1060-1-->L1062: Formula: (= v_~counter~0_10 0) InVars {} OutVars{~counter~0=v_~counter~0_10} AuxVars[] AssignedVars[~counter~0] 151#[L1062]don't care [352] L1062-->L1063: Formula: (= v_~lock1~0_8 0) InVars {} OutVars{~lock1~0=v_~lock1~0_8} AuxVars[] AssignedVars[~lock1~0] 153#[L1063]don't care [349] L1063-->L1064: Formula: (= v_~lock2~0_8 0) InVars {} OutVars{~lock2~0=v_~lock2~0_8} AuxVars[] AssignedVars[~lock2~0] 155#[L1064]don't care [451] L1064-->L1066-4: Formula: (= |v_ULTIMATE.start_main_~i~0#1_2| 0) InVars {} OutVars{ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0#1] 157#[L1066-4]don't care [418] L1066-4-->L1066: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 161#[L1066]don't care [459] L1066-->L1066-3: Formula: (= |v_ULTIMATE.start_main_#t~nondet8#1_4| 0) InVars {ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_4|} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_4|} AuxVars[] AssignedVars[] 167#[L1066-3]don't care [362] L1066-3-->L1069: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet8#1] 173#[L1069]don't care [408] L1069-->L1069-1: Formula: (= |v_ULTIMATE.start_main_#t~pre11#1_2| |v_#pthreadsForks_4|) InVars {#pthreadsForks=|v_#pthreadsForks_4|} OutVars{ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_2|, #pthreadsForks=|v_#pthreadsForks_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre11#1] 179#[L1069-1]don't care [435] L1069-1-->L1069-2: Formula: (= (+ 1 |v_#pthreadsForks_6|) |v_#pthreadsForks_5|) InVars {#pthreadsForks=|v_#pthreadsForks_6|} OutVars{#pthreadsForks=|v_#pthreadsForks_5|} AuxVars[] AssignedVars[#pthreadsForks] 185#[L1069-2]don't care [406] L1069-2-->L1069-3: Formula: (and (<= 0 |v_ULTIMATE.start_main_~#t~0#1.offset_4|) (<= (+ |v_ULTIMATE.start_main_~#t~0#1.offset_4| 4) (select |v_#length_6| |v_ULTIMATE.start_main_~#t~0#1.base_4|)) (= (store |v_#memory_int_6| |v_ULTIMATE.start_main_~#t~0#1.base_4| (store (select |v_#memory_int_6| |v_ULTIMATE.start_main_~#t~0#1.base_4|) |v_ULTIMATE.start_main_~#t~0#1.offset_4| |v_ULTIMATE.start_main_#t~pre11#1_3|)) |v_#memory_int_5|) (= (select |v_#valid_7| |v_ULTIMATE.start_main_~#t~0#1.base_4|) 1)) InVars {ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_3|, ULTIMATE.start_main_~#t~0#1.offset=|v_ULTIMATE.start_main_~#t~0#1.offset_4|, #valid=|v_#valid_7|, #memory_int=|v_#memory_int_6|, #length=|v_#length_6|, ULTIMATE.start_main_~#t~0#1.base=|v_ULTIMATE.start_main_~#t~0#1.base_4|} OutVars{ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_3|, ULTIMATE.start_main_~#t~0#1.offset=|v_ULTIMATE.start_main_~#t~0#1.offset_4|, #valid=|v_#valid_7|, #memory_int=|v_#memory_int_5|, #length=|v_#length_6|, ULTIMATE.start_main_~#t~0#1.base=|v_ULTIMATE.start_main_~#t~0#1.base_4|} AuxVars[] AssignedVars[#memory_int] 191#[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] 197#[L1069-4, consumerENTRY]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] 203#[L1049-2, L1069-4]don't care [2022-07-26 13:22:22,289 INFO L735 eck$LassoCheckResult]: Loop: 203#[L1049-2, L1069-4]don't care [504] L1049-2-->L1050: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 215#[L1050, L1069-4]don't care [506] L1050-->L1004: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 235#[L1069-4, L1004]don't care [508] L1004-->L1007: Formula: (and (= v_~lock1~0_57 1) (= |v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_1| |v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_1|) (not (= |v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_1| 0)) (= (ite (= v_~lock1~0_58 0) 1 0) |v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_1|)) InVars {~lock1~0=v_~lock1~0_58} OutVars{consumerThread1of1ForFork1_assume_abort_if_not_~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_1|, consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_1|, ~lock1~0=v_~lock1~0_57} AuxVars[] AssignedVars[consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1, ~lock1~0] 269#[L1069-4, L1007]don't care [510] L1007-->L1051: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 319#[L1069-4, L1051]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[] 389#[L1069-4, L1052]don't care [515] L1052-->L1010: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 479#[L1010, L1069-4]don't care [517] L1010-->L1013: Formula: (and (= v_~lock1~0_75 0) (= |v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_3| |v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_3|) (not (= |v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_3| 0)) (= (ite (= v_~lock1~0_76 1) 1 0) |v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_3|)) InVars {~lock1~0=v_~lock1~0_76} OutVars{consumerThread1of1ForFork1_assume_abort_if_not_~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_3|, consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_3|, ~lock1~0=v_~lock1~0_75} AuxVars[] AssignedVars[consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1, ~lock1~0] 587#[L1069-4, L1013]don't care [519] L1013-->L1049-2: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 203#[L1049-2, L1069-4]don't care [2022-07-26 13:22:22,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:22:22,297 INFO L85 PathProgramCache]: Analyzing trace with hash 267198409, now seen corresponding path program 1 times [2022-07-26 13:22:22,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:22:22,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322133947] [2022-07-26 13:22:22,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:22:22,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:22:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:22:22,421 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:22:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:22:22,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:22:22,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:22:22,493 INFO L85 PathProgramCache]: Analyzing trace with hash 646419273, now seen corresponding path program 1 times [2022-07-26 13:22:22,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:22:22,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228114227] [2022-07-26 13:22:22,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:22:22,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:22:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:22:22,540 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:22:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:22:22,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:22:22,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-26 13:22:22,559 INFO L85 PathProgramCache]: Analyzing trace with hash 408709905, now seen corresponding path program 1 times [2022-07-26 13:22:22,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-26 13:22:22,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543507452] [2022-07-26 13:22:22,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-26 13:22:22,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-26 13:22:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:22:22,597 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-26 13:22:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-26 13:22:22,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-26 13:22:23,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.07 01:22:23 BoogieIcfgContainer [2022-07-26 13:22:23,215 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-26 13:22:23,217 INFO L158 Benchmark]: Toolchain (without parser) took 4438.74ms. Allocated memory was 189.8MB in the beginning and 390.1MB in the end (delta: 200.3MB). Free memory was 160.3MB in the beginning and 180.7MB in the end (delta: -20.4MB). Peak memory consumption was 179.7MB. Max. memory is 8.0GB. [2022-07-26 13:22:23,217 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 189.8MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 13:22:23,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.33ms. Allocated memory was 189.8MB in the beginning and 257.9MB in the end (delta: 68.2MB). Free memory was 160.1MB in the beginning and 208.0MB in the end (delta: -47.9MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2022-07-26 13:22:23,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.93ms. Allocated memory is still 257.9MB. Free memory was 208.0MB in the beginning and 205.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-26 13:22:23,221 INFO L158 Benchmark]: Boogie Preprocessor took 24.19ms. Allocated memory is still 257.9MB. Free memory was 205.5MB in the beginning and 204.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-26 13:22:23,222 INFO L158 Benchmark]: RCFGBuilder took 467.07ms. Allocated memory is still 257.9MB. Free memory was 204.0MB in the beginning and 184.0MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-07-26 13:22:23,222 INFO L158 Benchmark]: BuchiAutomizer took 3333.24ms. Allocated memory was 257.9MB in the beginning and 390.1MB in the end (delta: 132.1MB). Free memory was 183.5MB in the beginning and 180.7MB in the end (delta: 2.8MB). Peak memory consumption was 136.0MB. Max. memory is 8.0GB. [2022-07-26 13:22:23,228 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 189.8MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 570.33ms. Allocated memory was 189.8MB in the beginning and 257.9MB in the end (delta: 68.2MB). Free memory was 160.1MB in the beginning and 208.0MB in the end (delta: -47.9MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.93ms. Allocated memory is still 257.9MB. Free memory was 208.0MB in the beginning and 205.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.19ms. Allocated memory is still 257.9MB. Free memory was 205.5MB in the beginning and 204.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 467.07ms. Allocated memory is still 257.9MB. Free memory was 204.0MB in the beginning and 184.0MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * BuchiAutomizer took 3333.24ms. Allocated memory was 257.9MB in the beginning and 390.1MB in the end (delta: 132.1MB). Free memory was 183.5MB in the beginning and 180.7MB in the end (delta: 2.8MB). Peak memory consumption was 136.0MB. 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 0.9s. 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: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 1049]: 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)=0, \old(cond)=1, \result={0:0}, \result=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@464221aa in0,16018, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5625ebdc in0,0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b77ac60=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@6f741f90=0, t={12579:0}} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1049]: 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. RESULT: Ultimate proved your program to be incorrect! [2022-07-26 13:22:23,284 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...