/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf -i ../../../trunk/examples/svcomp/pthread-lit/fk2012.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-21b0908
[2022-07-22 12:34:02,974 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-07-22 12:34:02,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
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[2022-07-22 12:34:03,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
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[2022-07-22 12:34:03,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-07-22 12:34:03,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-07-22 12:34:03,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2022-07-22 12:34:03,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2022-07-22 12:34:03,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-07-22 12:34:03,121 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-syntacticLbe.epf
[2022-07-22 12:34:03,170 INFO L113 SettingsManager]: Loading preferences was successful
[2022-07-22 12:34:03,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-07-22 12:34:03,172 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-07-22 12:34:03,172 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-07-22 12:34:03,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-07-22 12:34:03,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-07-22 12:34:03,174 INFO L138 SettingsManager]: * Use SBE=true
[2022-07-22 12:34:03,174 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2022-07-22 12:34:03,175 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2022-07-22 12:34:03,176 INFO L138 SettingsManager]: * Use old map elimination=false
[2022-07-22 12:34:03,176 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false
[2022-07-22 12:34:03,176 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true
[2022-07-22 12:34:03,176 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2022-07-22 12:34:03,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-07-22 12:34:03,177 INFO L138 SettingsManager]: * sizeof long=4
[2022-07-22 12:34:03,177 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-07-22 12:34:03,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-07-22 12:34:03,178 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-07-22 12:34:03,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-07-22 12:34:03,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2022-07-22 12:34:03,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2022-07-22 12:34:03,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2022-07-22 12:34:03,179 INFO L138 SettingsManager]: * sizeof long double=12
[2022-07-22 12:34:03,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-07-22 12:34:03,179 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false
[2022-07-22 12:34:03,179 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-07-22 12:34:03,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2022-07-22 12:34:03,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-07-22 12:34:03,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-07-22 12:34:03,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-07-22 12:34:03,181 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-07-22 12:34:03,181 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2022-07-22 12:34:03,184 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-07-22 12:34:03,184 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-07-22 12:34:03,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-07-22 12:34:03,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-07-22 12:34:03,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-07-22 12:34:03,622 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-07-22 12:34:03,623 INFO L275 PluginConnector]: CDTParser initialized
[2022-07-22 12:34:03,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fk2012.i
[2022-07-22 12:34:03,700 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ec1e9515/9ed6cdda29f743da88d475f62b5cfa16/FLAG46d0666a0
[2022-07-22 12:34:04,578 INFO L306 CDTParser]: Found 1 translation units.
[2022-07-22 12:34:04,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fk2012.i
[2022-07-22 12:34:04,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ec1e9515/9ed6cdda29f743da88d475f62b5cfa16/FLAG46d0666a0
[2022-07-22 12:34:04,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ec1e9515/9ed6cdda29f743da88d475f62b5cfa16
[2022-07-22 12:34:04,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-07-22 12:34:04,761 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-07-22 12:34:04,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-07-22 12:34:04,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-07-22 12:34:04,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-07-22 12:34:04,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:34:04" (1/1) ...
[2022-07-22 12:34:04,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fcd64af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:04, skipping insertion in model container
[2022-07-22 12:34:04,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:34:04" (1/1) ...
[2022-07-22 12:34:04,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-07-22 12:34:04,865 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-07-22 12:34:05,074 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 12:34:05,339 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-07-22 12:34:05,350 INFO L203 MainTranslator]: Completed pre-run
[2022-07-22 12:34:05,364 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 12:34:05,423 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-07-22 12:34:05,525 INFO L208 MainTranslator]: Completed translation
[2022-07-22 12:34:05,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:05 WrapperNode
[2022-07-22 12:34:05,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-07-22 12:34:05,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-07-22 12:34:05,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-07-22 12:34:05,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-07-22 12:34:05,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:05" (1/1) ...
[2022-07-22 12:34:05,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:05" (1/1) ...
[2022-07-22 12:34:05,606 INFO L137 Inliner]: procedures = 277, calls = 35, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 156
[2022-07-22 12:34:05,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-07-22 12:34:05,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-07-22 12:34:05,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-07-22 12:34:05,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-07-22 12:34:05,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:05" (1/1) ...
[2022-07-22 12:34:05,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:05" (1/1) ...
[2022-07-22 12:34:05,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:05" (1/1) ...
[2022-07-22 12:34:05,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:05" (1/1) ...
[2022-07-22 12:34:05,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:05" (1/1) ...
[2022-07-22 12:34:05,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:05" (1/1) ...
[2022-07-22 12:34:05,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:05" (1/1) ...
[2022-07-22 12:34:05,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-07-22 12:34:05,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-07-22 12:34:05,642 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-07-22 12:34:05,642 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-07-22 12:34:05,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:05" (1/1) ...
[2022-07-22 12:34:05,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-07-22 12:34:05,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-07-22 12:34:05,681 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 12:34:05,705 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 12:34:05,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-07-22 12:34:05,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-07-22 12:34:05,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-07-22 12:34:05,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-07-22 12:34:05,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-07-22 12:34:05,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-07-22 12:34:05,760 INFO L130 BoogieDeclarations]: Found specification of procedure producer
[2022-07-22 12:34:05,760 INFO L138 BoogieDeclarations]: Found implementation of procedure producer
[2022-07-22 12:34:05,760 INFO L130 BoogieDeclarations]: Found specification of procedure consumer
[2022-07-22 12:34:05,760 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer
[2022-07-22 12:34:05,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-07-22 12:34:05,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-07-22 12:34:05,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-07-22 12:34:05,762 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 12:34:05,891 INFO L234 CfgBuilder]: Building ICFG
[2022-07-22 12:34:05,893 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-07-22 12:34:06,209 INFO L275 CfgBuilder]: Performing block encoding
[2022-07-22 12:34:06,362 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-07-22 12:34:06,363 INFO L299 CfgBuilder]: Removed 3 assume(true) statements.
[2022-07-22 12:34:06,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:34:06 BoogieIcfgContainer
[2022-07-22 12:34:06,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-07-22 12:34:06,367 INFO L113 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2022-07-22 12:34:06,367 INFO L271 PluginConnector]: Initializing BuchiAutomizer...
[2022-07-22 12:34:06,372 INFO L275 PluginConnector]: BuchiAutomizer initialized
[2022-07-22 12:34:06,373 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2022-07-22 12:34:06,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:34:04" (1/3) ...
[2022-07-22 12:34:06,375 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7799ec05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:34:06, skipping insertion in model container
[2022-07-22 12:34:06,375 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2022-07-22 12:34:06,375 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:34:05" (2/3) ...
[2022-07-22 12:34:06,375 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7799ec05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:34:06, skipping insertion in model container
[2022-07-22 12:34:06,376 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2022-07-22 12:34:06,376 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:34:06" (3/3) ...
[2022-07-22 12:34:06,377 INFO L322 chiAutomizerObserver]: Analyzing ICFG fk2012.i
[2022-07-22 12:34:06,461 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2022-07-22 12:34:06,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 118 transitions, 246 flow
[2022-07-22 12:34:06,608 INFO L129 PetriNetUnfolder]: 23/254 cut-off events.
[2022-07-22 12:34:06,609 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-07-22 12:34:06,622 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 12:34:06,623 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 118 transitions, 246 flow
[2022-07-22 12:34:06,638 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 118 transitions, 246 flow
[2022-07-22 12:34:06,643 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2022-07-22 12:34:06,656 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 118 transitions, 246 flow
[2022-07-22 12:34:06,660 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 118 transitions, 246 flow
[2022-07-22 12:34:06,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 118 transitions, 246 flow
[2022-07-22 12:34:06,718 INFO L129 PetriNetUnfolder]: 23/254 cut-off events.
[2022-07-22 12:34:06,719 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2022-07-22 12:34:06,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 254 events. 23/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 966 event pairs, 1 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 117. Up to 8 conditions per place.
[2022-07-22 12:34:06,736 INFO L116 LiptonReduction]: Number of co-enabled transitions 6184
[2022-07-22 12:34:09,483 INFO L131 LiptonReduction]: Checked pairs total: 9490
[2022-07-22 12:34:09,483 INFO L133 LiptonReduction]: Total number of compositions: 97
[2022-07-22 12:34:09,509 INFO L300 stractBuchiCegarLoop]: Interprodecural is true
[2022-07-22 12:34:09,509 INFO L301 stractBuchiCegarLoop]: Hoare is false
[2022-07-22 12:34:09,509 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2022-07-22 12:34:09,509 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2022-07-22 12:34:09,510 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2022-07-22 12:34:09,510 INFO L305 stractBuchiCegarLoop]: Difference is false
[2022-07-22 12:34:09,510 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2022-07-22 12:34:09,510 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2022-07-22 12:34:09,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states
[2022-07-22 12:34:09,739 INFO L131 ngComponentsAnalysis]: Automaton has 242 accepting balls. 476
[2022-07-22 12:34:09,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-07-22 12:34:09,740 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-07-22 12:34:09,748 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2022-07-22 12:34:09,748 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2022-07-22 12:34:09,748 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============
[2022-07-22 12:34:09,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 838 states, but on-demand construction may add more states
[2022-07-22 12:34:09,769 INFO L131 ngComponentsAnalysis]: Automaton has 242 accepting balls. 476
[2022-07-22 12:34:09,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-07-22 12:34:09,769 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-07-22 12:34:09,770 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2022-07-22 12:34:09,770 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2022-07-22 12:34:09,776 INFO L748 eck$LassoCheckResult]: Stem: 116#[ULTIMATE.startENTRY]don't care [632] ULTIMATE.startENTRY-->L1066-4: Formula: (let ((.cse0 (select |v_#memory_int_31| 1))) (and (= v_~lock1~0_169 0) (= 2 (select |v_#length_44| 1)) (= (select |v_#valid_61| |v_ULTIMATE.start_main_~#t~0#1.base_41|) 0) (= |v_#NULL.base_10| 0) (< |v_#StackHeapBarrier_19| |v_ULTIMATE.start_main_~#t~0#1.base_41|) (= (select .cse0 1) 0) (= (select |v_#valid_61| 0) 0) (= (select |v_#valid_61| 1) 1) (= (select .cse0 0) 48) (= v_~lock2~0_105 0) (= |v_ULTIMATE.start_main_~#t~0#1.offset_35| 0) (= (store |v_#length_44| |v_ULTIMATE.start_main_~#t~0#1.base_41| 4) |v_#length_43|) (= |v_ULTIMATE.start_main_~i~0#1_17| 0) (< 0 |v_#StackHeapBarrier_19|) (= 9 (select |v_#length_44| 2)) (= |v_#NULL.offset_10| 0) (= v_~counter~0_60 0) (= (select |v_#valid_61| 2) 1) (= (store |v_#valid_61| |v_ULTIMATE.start_main_~#t~0#1.base_41| 1) |v_#valid_60|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_19|, #valid=|v_#valid_61|, #memory_int=|v_#memory_int_31|, #length=|v_#length_44|} OutVars{~counter~0=v_~counter~0_60, ULTIMATE.start_main_#t~nondet10#1=|v_ULTIMATE.start_main_#t~nondet10#1_13|, ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_25|, ULTIMATE.start_main_#t~pre9#1=|v_ULTIMATE.start_main_#t~pre9#1_23|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_24|, #NULL.offset=|v_#NULL.offset_10|, ~lock1~0=v_~lock1~0_169, ~lock2~0=v_~lock2~0_105, ULTIMATE.start_main_#t~nondet12#1=|v_ULTIMATE.start_main_#t~nondet12#1_13|, #NULL.base=|v_#NULL.base_10|, ULTIMATE.start_main_~i~0#1=|v_ULTIMATE.start_main_~i~0#1_17|, #StackHeapBarrier=|v_#StackHeapBarrier_19|, ULTIMATE.start_main_~#t~0#1.offset=|v_ULTIMATE.start_main_~#t~0#1.offset_35|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_40|, #valid=|v_#valid_60|, #memory_int=|v_#memory_int_31|, #length=|v_#length_43|, ULTIMATE.start_main_~#t~0#1.base=|v_ULTIMATE.start_main_~#t~0#1.base_41|} AuxVars[] AssignedVars[~counter~0, ULTIMATE.start_main_#t~nondet10#1, ULTIMATE.start_main_#t~pre11#1, ULTIMATE.start_main_#t~pre9#1, ULTIMATE.start_main_#res#1, #NULL.offset, ~lock1~0, ~lock2~0, ULTIMATE.start_main_#t~nondet12#1, #NULL.base, ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~#t~0#1.offset, ULTIMATE.start_main_#t~nondet8#1, #valid, #length, ULTIMATE.start_main_~#t~0#1.base] 119#[L1066-4]don't care [625] L1066-4-->L1069-3: Formula: (and (= |v_ULTIMATE.start_main_#t~pre11#1_21| |v_#pthreadsForks_28|) (= |v_ULTIMATE.start_main_#t~nondet8#1_35| 0) (<= 0 |v_ULTIMATE.start_main_~#t~0#1.offset_31|) (= (+ |v_#pthreadsForks_28| 1) |v_#pthreadsForks_27|) (<= (+ |v_ULTIMATE.start_main_~#t~0#1.offset_31| 4) (select |v_#length_35| |v_ULTIMATE.start_main_~#t~0#1.base_37|)) (= (select |v_#valid_52| |v_ULTIMATE.start_main_~#t~0#1.base_37|) 1) (= (store |v_#memory_int_26| |v_ULTIMATE.start_main_~#t~0#1.base_37| (store (select |v_#memory_int_26| |v_ULTIMATE.start_main_~#t~0#1.base_37|) |v_ULTIMATE.start_main_~#t~0#1.offset_31| |v_ULTIMATE.start_main_#t~pre11#1_21|)) |v_#memory_int_25|)) InVars {#pthreadsForks=|v_#pthreadsForks_28|, ULTIMATE.start_main_~#t~0#1.offset=|v_ULTIMATE.start_main_~#t~0#1.offset_31|, ULTIMATE.start_main_#t~nondet8#1=|v_ULTIMATE.start_main_#t~nondet8#1_35|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_26|, #length=|v_#length_35|, ULTIMATE.start_main_~#t~0#1.base=|v_ULTIMATE.start_main_~#t~0#1.base_37|} OutVars{ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_21|, #pthreadsForks=|v_#pthreadsForks_27|, ULTIMATE.start_main_~#t~0#1.offset=|v_ULTIMATE.start_main_~#t~0#1.offset_31|, #valid=|v_#valid_52|, #memory_int=|v_#memory_int_25|, #length=|v_#length_35|, ULTIMATE.start_main_~#t~0#1.base=|v_ULTIMATE.start_main_~#t~0#1.base_37|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~pre11#1, #pthreadsForks, ULTIMATE.start_main_#t~nondet8#1, #memory_int] 123#[L1069-3]don't care [535] L1069-3-->consumerENTRY: Formula: (and (= v_consumerThread1of1ForFork1_thidvar1_2 0) (= |v_consumerThread1of1ForFork1_#in~arg#1.base_4| 0) (= v_consumerThread1of1ForFork1_thidvar0_2 |v_ULTIMATE.start_main_#t~pre11#1_6|) (= |v_consumerThread1of1ForFork1_#in~arg#1.offset_4| 0)) InVars {ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_6|} OutVars{consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_8|, consumerThread1of1ForFork1___VERIFIER_assert_#in~cond#1=|v_consumerThread1of1ForFork1___VERIFIER_assert_#in~cond#1_6|, consumerThread1of1ForFork1_~arg#1.base=|v_consumerThread1of1ForFork1_~arg#1.base_4|, ULTIMATE.start_main_#t~pre11#1=|v_ULTIMATE.start_main_#t~pre11#1_6|, consumerThread1of1ForFork1_~arg#1.offset=|v_consumerThread1of1ForFork1_~arg#1.offset_4|, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_8|, consumerThread1of1ForFork1___VERIFIER_assert_~cond#1=|v_consumerThread1of1ForFork1___VERIFIER_assert_~cond#1_10|, consumerThread1of1ForFork1_#res#1.base=|v_consumerThread1of1ForFork1_#res#1.base_4|, consumerThread1of1ForFork1_thidvar1=v_consumerThread1of1ForFork1_thidvar1_2, consumerThread1of1ForFork1_thidvar0=v_consumerThread1of1ForFork1_thidvar0_2, consumerThread1of1ForFork1_#res#1.offset=|v_consumerThread1of1ForFork1_#res#1.offset_4|, consumerThread1of1ForFork1_#in~arg#1.offset=|v_consumerThread1of1ForFork1_#in~arg#1.offset_4|, consumerThread1of1ForFork1_#t~post7#1=|v_consumerThread1of1ForFork1_#t~post7#1_8|, consumerThread1of1ForFork1_#in~arg#1.base=|v_consumerThread1of1ForFork1_#in~arg#1.base_4|} AuxVars[] AssignedVars[consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1, consumerThread1of1ForFork1___VERIFIER_assert_#in~cond#1, consumerThread1of1ForFork1_~arg#1.base, consumerThread1of1ForFork1_~arg#1.offset, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1, consumerThread1of1ForFork1___VERIFIER_assert_~cond#1, consumerThread1of1ForFork1_#res#1.base, consumerThread1of1ForFork1_thidvar1, consumerThread1of1ForFork1_thidvar0, consumerThread1of1ForFork1_#res#1.offset, consumerThread1of1ForFork1_#in~arg#1.offset, consumerThread1of1ForFork1_#t~post7#1, consumerThread1of1ForFork1_#in~arg#1.base] 127#[consumerENTRY, L1069-4]don't care [501] consumerENTRY-->L1049-2: Formula: (and (= |v_consumerThread1of1ForFork1_~arg#1.offset_1| |v_consumerThread1of1ForFork1_#in~arg#1.offset_1|) (= |v_consumerThread1of1ForFork1_~arg#1.base_1| |v_consumerThread1of1ForFork1_#in~arg#1.base_1|)) InVars {consumerThread1of1ForFork1_#in~arg#1.base=|v_consumerThread1of1ForFork1_#in~arg#1.base_1|, consumerThread1of1ForFork1_#in~arg#1.offset=|v_consumerThread1of1ForFork1_#in~arg#1.offset_1|} OutVars{consumerThread1of1ForFork1_#in~arg#1.base=|v_consumerThread1of1ForFork1_#in~arg#1.base_1|, consumerThread1of1ForFork1_#in~arg#1.offset=|v_consumerThread1of1ForFork1_#in~arg#1.offset_1|, consumerThread1of1ForFork1_~arg#1.base=|v_consumerThread1of1ForFork1_~arg#1.base_1|, consumerThread1of1ForFork1_~arg#1.offset=|v_consumerThread1of1ForFork1_~arg#1.offset_1|} AuxVars[] AssignedVars[consumerThread1of1ForFork1_~arg#1.base, consumerThread1of1ForFork1_~arg#1.offset] 131#[L1049-2, L1069-4]don't care
[2022-07-22 12:34:09,776 INFO L750 eck$LassoCheckResult]: Loop: 131#[L1049-2, L1069-4]don't care [596] L1049-2-->L1051: Formula: (and (= v_~lock1~0_133 1) (= |v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_21| (ite (= v_~lock1~0_134 0) 1 0)) (= |v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_21| |v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_21|) (not (= |v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_21| 0))) InVars {~lock1~0=v_~lock1~0_134} OutVars{consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_21|, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_21|, ~lock1~0=v_~lock1~0_133} AuxVars[] AssignedVars[consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1, ~lock1~0] 139#[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[] 165#[L1069-4, L1052]don't care [594] L1052-->L1049-2: Formula: (and (= v_~lock1~0_129 0) (= |v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_19| (ite (= v_~lock1~0_130 1) 1 0)) (= |v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_19| |v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_19|) (not (= |v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_19| 0))) InVars {~lock1~0=v_~lock1~0_130} OutVars{consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_19|, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1=|v_consumerThread1of1ForFork1_assume_abort_if_not_~cond#1_19|, ~lock1~0=v_~lock1~0_129} AuxVars[] AssignedVars[consumerThread1of1ForFork1_assume_abort_if_not_#in~cond#1, consumerThread1of1ForFork1_assume_abort_if_not_~cond#1, ~lock1~0] 131#[L1049-2, L1069-4]don't care
[2022-07-22 12:34:09,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-07-22 12:34:09,783 INFO L85 PathProgramCache]: Analyzing trace with hash 20369144, now seen corresponding path program 1 times
[2022-07-22 12:34:09,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-07-22 12:34:09,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636856123]
[2022-07-22 12:34:09,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-07-22 12:34:09,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-07-22 12:34:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-07-22 12:34:09,925 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-07-22 12:34:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-07-22 12:34:09,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-07-22 12:34:10,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-07-22 12:34:10,000 INFO L85 PathProgramCache]: Analyzing trace with hash 619044, now seen corresponding path program 1 times
[2022-07-22 12:34:10,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-07-22 12:34:10,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258302463]
[2022-07-22 12:34:10,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-07-22 12:34:10,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-07-22 12:34:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-07-22 12:34:10,058 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-07-22 12:34:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-07-22 12:34:10,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-07-22 12:34:10,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-07-22 12:34:10,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1227369421, now seen corresponding path program 1 times
[2022-07-22 12:34:10,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-07-22 12:34:10,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102723241]
[2022-07-22 12:34:10,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-07-22 12:34:10,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-07-22 12:34:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-07-22 12:34:10,163 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-07-22 12:34:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-07-22 12:34:10,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-07-22 12:34:10,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 12:34:10 BoogieIcfgContainer
[2022-07-22 12:34:10,839 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2022-07-22 12:34:10,842 INFO L158 Benchmark]: Toolchain (without parser) took 6083.62ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 124.1MB in the beginning and 67.8MB in the end (delta: 56.3MB). Peak memory consumption was 89.1MB. Max. memory is 8.0GB.
[2022-07-22 12:34:10,843 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 151.0MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-07-22 12:34:10,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 760.89ms. Allocated memory is still 151.0MB. Free memory was 123.9MB in the beginning and 127.7MB in the end (delta: -3.8MB). Peak memory consumption was 30.3MB. Max. memory is 8.0GB.
[2022-07-22 12:34:10,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.45ms. Allocated memory is still 151.0MB. Free memory was 127.7MB in the beginning and 125.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-07-22 12:34:10,848 INFO L158 Benchmark]: Boogie Preprocessor took 33.63ms. Allocated memory is still 151.0MB. Free memory was 125.6MB in the beginning and 124.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-07-22 12:34:10,850 INFO L158 Benchmark]: RCFGBuilder took 724.20ms. Allocated memory is still 151.0MB. Free memory was 123.5MB in the beginning and 103.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB.
[2022-07-22 12:34:10,859 INFO L158 Benchmark]: BuchiAutomizer took 4472.47ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 103.6MB in the beginning and 67.8MB in the end (delta: 35.8MB). Peak memory consumption was 67.2MB. Max. memory is 8.0GB.
[2022-07-22 12:34:10,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26ms. Allocated memory is still 151.0MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 760.89ms. Allocated memory is still 151.0MB. Free memory was 123.9MB in the beginning and 127.7MB in the end (delta: -3.8MB). Peak memory consumption was 30.3MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 79.45ms. Allocated memory is still 151.0MB. Free memory was 127.7MB in the beginning and 125.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 33.63ms. Allocated memory is still 151.0MB. Free memory was 125.6MB in the beginning and 124.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 724.20ms. Allocated memory is still 151.0MB. Free memory was 123.5MB in the beginning and 103.6MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB.
* BuchiAutomizer took 4472.47ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 103.6MB in the beginning and 67.8MB in the end (delta: 35.8MB). Peak memory consumption was 67.2MB. 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 4.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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: 3.0s
- TerminationAnalysisResult: Nontermination possible
Buchi Automizer proved that your program is nonterminating for some inputs
- FixpointNonTerminationResult [Line: 1]: Nontermination argument in form of an infinite program execution.
Nontermination argument in form of an infinite execution
State at position 0 is
{}
State at position 1 is
{\old(cond)=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@3f80e4b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d0cd43b in18519,0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a3cd869 in0,0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@6cbb7302=0, t={3:0}}
- StatisticsResult: NonterminationArgumentStatistics
Fixpoint
- NonterminatingLassoResult [Line: 1]: Nonterminating execution
Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L1000] 0 volatile int lock1;
[L1001] 0 volatile int lock2;
[L1002] 0 volatile int counter;
[L1060] 0 pthread_t t;
[L1061] 0 counter = 0
[L1062] 0 lock1 = 0
[L1063] 0 lock2 = 0
[L1064] 0 int i =0;
[L1065] COND TRUE 0 1
[L1066] COND FALSE 0 !(__VERIFIER_nondet_int())
[L1069] FCALL, FORK 0 pthread_create(&t, 0, consumer, 0)
Loop:
[L1049] COND TRUE 1
[L1050] CALL acquire1()
[L1005] CALL assume_abort_if_not(lock1 == 0)
[L16] COND TRUE !cond
[L1005] RET assume_abort_if_not(lock1 == 0)
[L1006] lock1 = 1
[L1050] RET acquire1()
[L1051] COND FALSE !(counter > 0)
[L1052] CALL release1()
[L1011] CALL assume_abort_if_not(lock1 == 1)
[L16] COND FALSE !(!cond)
[L1011] RET assume_abort_if_not(lock1 == 1)
[L1012] lock1 = 0
[L1052] RET release1()
End of lasso representation.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
Lipton Reduction Statistics: ReductionTime: 2.8s, 113 PlacesBefore, 32 PlacesAfterwards, 118 TransitionsBefore, 33 TransitionsAfterwards, 6184 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 4 ChoiceCompositions, 97 TotalNumberOfCompositions, 9490 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7135, positive: 6986, positive conditional: 0, positive unconditional: 6986, negative: 149, negative conditional: 0, negative unconditional: 149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3399, positive: 3363, positive conditional: 0, positive unconditional: 3363, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7135, positive: 3623, positive conditional: 0, positive unconditional: 3623, negative: 113, negative conditional: 0, negative unconditional: 113, unknown: 3399, unknown conditional: 0, unknown unconditional: 3399] , Statistics on independence cache: Total cache size (in pairs): 230, Positive cache size: 213, Positive conditional cache size: 0, Positive unconditional cache size: 213, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17
RESULT: Ultimate proved your program to be incorrect!
[2022-07-22 12:34:10,971 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...