/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-21b0908 [2022-07-22 11:39:58,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 11:39:58,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 11:39:58,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-07-22 11:39:58,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 11:39:58,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 11:39:58,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 11:39:58,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 11:39:58,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 11:39:58,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 11:39:58,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 11:39:58,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 11:39:58,345 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 11:39:58,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 11:39:58,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 11:39:58,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 11:39:58,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 11:39:58,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 11:39:58,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 11:39:58,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 11:39:58,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 11:39:58,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2022-07-22 11:39:58,434 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 11:39:58,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 11:39:58,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 11:39:58,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 11:39:58,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 11:39:58,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 11:39:58,438 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 11:39:58,438 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 11:39:58,439 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 11:39:58,440 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 11:39:58,440 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 11:39:58,440 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 11:39:58,440 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 11:39:58,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 11:39:58,441 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 11:39:58,441 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 11:39:58,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 11:39:58,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 11:39:58,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 11:39:58,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 11:39:58,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 11:39:58,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 11:39:58,442 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 11:39:58,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 11:39:58,443 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 11:39:58,443 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 11:39:58,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 11:39:58,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 11:39:58,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 11:39:58,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 11:39:58,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 11:39:58,444 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 11:39:58,447 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 11:39:58,448 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 11:39:58,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 11:39:58,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 11:39:58,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 11:39:58,872 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 11:39:58,873 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 11:39:58,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fk2012.i [2022-07-22 11:39:58,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b9ed2e63/8b9f7546c5b64feaad7262954e4c3679/FLAG9774fc4b5 [2022-07-22 11:39:59,817 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 11:39:59,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fk2012.i [2022-07-22 11:39:59,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b9ed2e63/8b9f7546c5b64feaad7262954e4c3679/FLAG9774fc4b5 [2022-07-22 11:39:59,990 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b9ed2e63/8b9f7546c5b64feaad7262954e4c3679 [2022-07-22 11:39:59,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 11:40:00,002 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 11:40:00,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 11:40:00,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 11:40:00,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 11:40:00,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:39:59" (1/1) ... [2022-07-22 11:40:00,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d02bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00, skipping insertion in model container [2022-07-22 11:40:00,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:39:59" (1/1) ... [2022-07-22 11:40:00,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 11:40:00,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 11:40:00,310 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] [2022-07-22 11:40:00,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:40:00,669 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 11:40:00,684 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] [2022-07-22 11:40:00,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:40:00,798 INFO L208 MainTranslator]: Completed translation [2022-07-22 11:40:00,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00 WrapperNode [2022-07-22 11:40:00,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 11:40:00,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 11:40:00,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 11:40:00,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 11:40:00,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00" (1/1) ... [2022-07-22 11:40:00,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00" (1/1) ... [2022-07-22 11:40:00,885 INFO L137 Inliner]: procedures = 277, calls = 35, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 156 [2022-07-22 11:40:00,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 11:40:00,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 11:40:00,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 11:40:00,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 11:40:00,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00" (1/1) ... [2022-07-22 11:40:00,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00" (1/1) ... [2022-07-22 11:40:00,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00" (1/1) ... [2022-07-22 11:40:00,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00" (1/1) ... [2022-07-22 11:40:00,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00" (1/1) ... [2022-07-22 11:40:00,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00" (1/1) ... [2022-07-22 11:40:00,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00" (1/1) ... [2022-07-22 11:40:00,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 11:40:00,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 11:40:00,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 11:40:00,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 11:40:00,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00" (1/1) ... [2022-07-22 11:40:00,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 11:40:00,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:40:00,984 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) [2022-07-22 11:40:00,994 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 [2022-07-22 11:40:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 11:40:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 11:40:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 11:40:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 11:40:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 11:40:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 11:40:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure producer [2022-07-22 11:40:01,063 INFO L138 BoogieDeclarations]: Found implementation of procedure producer [2022-07-22 11:40:01,063 INFO L130 BoogieDeclarations]: Found specification of procedure consumer [2022-07-22 11:40:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer [2022-07-22 11:40:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 11:40:01,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 11:40:01,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 11:40:01,066 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 11:40:01,205 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 11:40:01,207 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 11:40:01,602 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 11:40:01,720 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 11:40:01,720 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-22 11:40:01,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:40:01 BoogieIcfgContainer [2022-07-22 11:40:01,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 11:40:01,725 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 11:40:01,725 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 11:40:01,730 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 11:40:01,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:40:01,731 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 11:39:59" (1/3) ... [2022-07-22 11:40:01,732 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6966bb0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 11:40:01, skipping insertion in model container [2022-07-22 11:40:01,733 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:40:01,733 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:40:00" (2/3) ... [2022-07-22 11:40:01,733 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6966bb0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 11:40:01, skipping insertion in model container [2022-07-22 11:40:01,734 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:40:01,734 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:40:01" (3/3) ... [2022-07-22 11:40:01,735 INFO L322 chiAutomizerObserver]: Analyzing ICFG fk2012.i [2022-07-22 11:40:01,827 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-22 11:40:01,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 118 transitions, 246 flow [2022-07-22 11:40:02,045 INFO L129 PetriNetUnfolder]: 23/254 cut-off events. [2022-07-22 11:40:02,045 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 11:40:02,056 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. [2022-07-22 11:40:02,057 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 118 transitions, 246 flow [2022-07-22 11:40:02,071 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 118 transitions, 246 flow [2022-07-22 11:40:02,090 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 11:40:02,090 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 11:40:02,091 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 11:40:02,091 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 11:40:02,091 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 11:40:02,091 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 11:40:02,091 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 11:40:02,092 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 11:40:02,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 11:40:04,888 INFO L131 ngComponentsAnalysis]: Automaton has 2459 accepting balls. 12245 [2022-07-22 11:40:04,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 11:40:04,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 11:40:04,899 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] [2022-07-22 11:40:04,899 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:40:04,899 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 11:40:04,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 26146 states, but on-demand construction may add more states [2022-07-22 11:40:05,712 INFO L131 ngComponentsAnalysis]: Automaton has 2459 accepting balls. 12245 [2022-07-22 11:40:05,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 11:40:05,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 11:40:05,716 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] [2022-07-22 11:40:05,716 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:40:05,727 INFO L748 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#[L1069-4, L1049-2]don't care [2022-07-22 11:40:05,727 INFO L750 eck$LassoCheckResult]: Loop: 203#[L1069-4, L1049-2]don't care [504] L1049-2-->L1050: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 215#[L1069-4, L1050]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#[L1069-4, L1010]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#[L1069-4, L1049-2]don't care [2022-07-22 11:40:05,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:40:05,737 INFO L85 PathProgramCache]: Analyzing trace with hash 267198409, now seen corresponding path program 1 times [2022-07-22 11:40:05,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:40:05,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407110248] [2022-07-22 11:40:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:40:05,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:40:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 11:40:05,971 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 11:40:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 11:40:06,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 11:40:06,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:40:06,075 INFO L85 PathProgramCache]: Analyzing trace with hash 646419273, now seen corresponding path program 1 times [2022-07-22 11:40:06,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:40:06,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151082310] [2022-07-22 11:40:06,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:40:06,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:40:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 11:40:06,134 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 11:40:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 11:40:06,159 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 11:40:06,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:40:06,170 INFO L85 PathProgramCache]: Analyzing trace with hash 408709905, now seen corresponding path program 1 times [2022-07-22 11:40:06,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:40:06,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089164796] [2022-07-22 11:40:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:40:06,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:40:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 11:40:06,221 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 11:40:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 11:40:06,247 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 11:40:06,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 11:40:06 BoogieIcfgContainer [2022-07-22 11:40:06,862 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 11:40:06,864 INFO L158 Benchmark]: Toolchain (without parser) took 6864.99ms. Allocated memory was 164.6MB in the beginning and 396.4MB in the end (delta: 231.7MB). Free memory was 137.0MB in the beginning and 202.9MB in the end (delta: -65.9MB). Peak memory consumption was 167.2MB. Max. memory is 8.0GB. [2022-07-22 11:40:06,865 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 164.6MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 11:40:06,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 792.86ms. Allocated memory is still 164.6MB. Free memory was 136.8MB in the beginning and 108.9MB in the end (delta: 27.9MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-07-22 11:40:06,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.66ms. Allocated memory is still 164.6MB. Free memory was 108.7MB in the beginning and 144.3MB in the end (delta: -35.5MB). Peak memory consumption was 4.6MB. Max. memory is 8.0GB. [2022-07-22 11:40:06,868 INFO L158 Benchmark]: Boogie Preprocessor took 50.85ms. Allocated memory is still 164.6MB. Free memory was 144.3MB in the beginning and 142.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 11:40:06,868 INFO L158 Benchmark]: RCFGBuilder took 785.47ms. Allocated memory is still 164.6MB. Free memory was 142.2MB in the beginning and 122.8MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-07-22 11:40:06,869 INFO L158 Benchmark]: BuchiAutomizer took 5136.95ms. Allocated memory was 164.6MB in the beginning and 396.4MB in the end (delta: 231.7MB). Free memory was 122.8MB in the beginning and 202.9MB in the end (delta: -80.1MB). Peak memory consumption was 152.1MB. Max. memory is 8.0GB. [2022-07-22 11:40:06,873 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 164.6MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 792.86ms. Allocated memory is still 164.6MB. Free memory was 136.8MB in the beginning and 108.9MB in the end (delta: 27.9MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 85.66ms. Allocated memory is still 164.6MB. Free memory was 108.7MB in the beginning and 144.3MB in the end (delta: -35.5MB). Peak memory consumption was 4.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.85ms. Allocated memory is still 164.6MB. Free memory was 144.3MB in the beginning and 142.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 785.47ms. Allocated memory is still 164.6MB. Free memory was 142.2MB in the beginning and 122.8MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * BuchiAutomizer took 5136.95ms. Allocated memory was 164.6MB in the beginning and 396.4MB in the end (delta: 231.7MB). Free memory was 122.8MB in the beginning and 202.9MB in the end (delta: -80.1MB). Peak memory consumption was 152.1MB. 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 4.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. 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: 0.2s - 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, \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@32b574f2 in0,0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cdf1f3b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@743cf81c in0,16018, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@686bbef3=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! [2022-07-22 11:40:06,942 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...