/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-semanticLbe.epf -i ../../../trunk/examples/svcomp/weaver/chl-time-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-0d686a6 [2022-07-26 13:50:32,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-26 13:50:32,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-26 13:50:32,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-26 13:50:32,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-26 13:50:32,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-26 13:50:32,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-26 13:50:32,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-26 13:50:32,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-26 13:50:32,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-26 13:50:32,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-26 13:50:32,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-26 13:50:32,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-26 13:50:32,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-26 13:50:32,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-26 13:50:32,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-26 13:50:32,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-26 13:50:32,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-26 13:50:32,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-26 13:50:32,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-26 13:50:32,653 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-26 13:50:32,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-26 13:50:32,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-26 13:50:32,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-26 13:50:32,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-26 13:50:32,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-26 13:50:32,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-26 13:50:32,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-26 13:50:32,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-26 13:50:32,673 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf [2022-07-26 13:50:32,700 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-26 13:50:32,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-26 13:50:32,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-26 13:50:32,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-26 13:50:32,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-26 13:50:32,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-26 13:50:32,702 INFO L138 SettingsManager]: * Use SBE=true [2022-07-26 13:50:32,702 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-26 13:50:32,702 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-26 13:50:32,703 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-26 13:50:32,703 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-26 13:50:32,703 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-26 13:50:32,703 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-26 13:50:32,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-26 13:50:32,703 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-26 13:50:32,703 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-26 13:50:32,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-26 13:50:32,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-26 13:50:32,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-26 13:50:32,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-26 13:50:32,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-26 13:50:32,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-26 13:50:32,704 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-26 13:50:32,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-26 13:50:32,704 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-26 13:50:32,705 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-26 13:50:32,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-26 13:50:32,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-26 13:50:32,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-26 13:50:32,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-26 13:50:32,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-26 13:50:32,706 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-26 13:50:32,706 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-26 13:50:32,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-26 13:50:32,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-26 13:50:32,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-26 13:50:32,943 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-26 13:50:32,944 INFO L275 PluginConnector]: CDTParser initialized [2022-07-26 13:50:32,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-time-symm.wvr.c [2022-07-26 13:50:32,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2e32f10/fc1a89a4ba18421b885dc19346827ebf/FLAGe75a43f15 [2022-07-26 13:50:33,397 INFO L306 CDTParser]: Found 1 translation units. [2022-07-26 13:50:33,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-symm.wvr.c [2022-07-26 13:50:33,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2e32f10/fc1a89a4ba18421b885dc19346827ebf/FLAGe75a43f15 [2022-07-26 13:50:33,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc2e32f10/fc1a89a4ba18421b885dc19346827ebf [2022-07-26 13:50:33,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-26 13:50:33,427 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-26 13:50:33,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-26 13:50:33,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-26 13:50:33,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-26 13:50:33,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:50:33" (1/1) ... [2022-07-26 13:50:33,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6dea60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33, skipping insertion in model container [2022-07-26 13:50:33,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.07 01:50:33" (1/1) ... [2022-07-26 13:50:33,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-26 13:50:33,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-26 13:50:33,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-symm.wvr.c[2494,2507] [2022-07-26 13:50:33,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 13:50:33,680 INFO L203 MainTranslator]: Completed pre-run [2022-07-26 13:50:33,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-time-symm.wvr.c[2494,2507] [2022-07-26 13:50:33,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-26 13:50:33,732 INFO L208 MainTranslator]: Completed translation [2022-07-26 13:50:33,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33 WrapperNode [2022-07-26 13:50:33,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-26 13:50:33,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-26 13:50:33,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-26 13:50:33,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-26 13:50:33,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33" (1/1) ... [2022-07-26 13:50:33,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33" (1/1) ... [2022-07-26 13:50:33,766 INFO L137 Inliner]: procedures = 22, calls = 29, calls flagged for inlining = 9, calls inlined = 15, statements flattened = 154 [2022-07-26 13:50:33,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-26 13:50:33,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-26 13:50:33,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-26 13:50:33,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-26 13:50:33,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33" (1/1) ... [2022-07-26 13:50:33,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33" (1/1) ... [2022-07-26 13:50:33,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33" (1/1) ... [2022-07-26 13:50:33,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33" (1/1) ... [2022-07-26 13:50:33,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33" (1/1) ... [2022-07-26 13:50:33,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33" (1/1) ... [2022-07-26 13:50:33,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33" (1/1) ... [2022-07-26 13:50:33,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-26 13:50:33,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-26 13:50:33,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-26 13:50:33,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-26 13:50:33,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33" (1/1) ... [2022-07-26 13:50:33,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-26 13:50:33,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-26 13:50:33,832 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 13:50:33,834 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 13:50:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-26 13:50:33,871 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-26 13:50:33,871 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-26 13:50:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-26 13:50:33,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-26 13:50:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-26 13:50:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-26 13:50:33,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-26 13:50:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-26 13:50:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-26 13:50:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-26 13:50:33,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-26 13:50:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-26 13:50:33,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-26 13:50:33,876 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 13:50:33,988 INFO L234 CfgBuilder]: Building ICFG [2022-07-26 13:50:33,990 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-26 13:50:34,342 INFO L275 CfgBuilder]: Performing block encoding [2022-07-26 13:50:34,552 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-26 13:50:34,552 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-26 13:50:34,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:50:34 BoogieIcfgContainer [2022-07-26 13:50:34,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-26 13:50:34,557 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-26 13:50:34,557 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-26 13:50:34,560 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-26 13:50:34,561 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:50:34,561 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.07 01:50:33" (1/3) ... [2022-07-26 13:50:34,562 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49ef35fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:50:34, skipping insertion in model container [2022-07-26 13:50:34,562 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:50:34,563 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.07 01:50:33" (2/3) ... [2022-07-26 13:50:34,563 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49ef35fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.07 01:50:34, skipping insertion in model container [2022-07-26 13:50:34,563 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-26 13:50:34,563 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.07 01:50:34" (3/3) ... [2022-07-26 13:50:34,565 INFO L322 chiAutomizerObserver]: Analyzing ICFG chl-time-symm.wvr.c [2022-07-26 13:50:34,648 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-26 13:50:34,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 97 transitions, 210 flow [2022-07-26 13:50:34,726 INFO L129 PetriNetUnfolder]: 5/93 cut-off events. [2022-07-26 13:50:34,726 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 13:50:34,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 93 events. 5/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2022-07-26 13:50:34,729 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 97 transitions, 210 flow [2022-07-26 13:50:34,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 93 transitions, 198 flow [2022-07-26 13:50:34,737 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-26 13:50:34,749 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 93 transitions, 198 flow [2022-07-26 13:50:34,751 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 93 transitions, 198 flow [2022-07-26 13:50:34,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 93 transitions, 198 flow [2022-07-26 13:50:34,775 INFO L129 PetriNetUnfolder]: 5/93 cut-off events. [2022-07-26 13:50:34,775 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-26 13:50:34,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 93 events. 5/93 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2022-07-26 13:50:34,777 INFO L116 LiptonReduction]: Number of co-enabled transitions 108 [2022-07-26 13:50:38,574 INFO L131 LiptonReduction]: Checked pairs total: 177 [2022-07-26 13:50:38,575 INFO L133 LiptonReduction]: Total number of compositions: 96 [2022-07-26 13:50:38,592 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2022-07-26 13:50:38,592 INFO L302 stractBuchiCegarLoop]: Hoare is false [2022-07-26 13:50:38,592 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-26 13:50:38,592 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-26 13:50:38,592 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-26 13:50:38,592 INFO L306 stractBuchiCegarLoop]: Difference is false [2022-07-26 13:50:38,592 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-26 13:50:38,592 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-26 13:50:38,594 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-26 13:50:38,613 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-26 13:50:38,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-26 13:50:38,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.07 01:50:38 BoogieIcfgContainer [2022-07-26 13:50:38,617 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-26 13:50:38,618 INFO L158 Benchmark]: Toolchain (without parser) took 5190.97ms. Allocated memory was 176.2MB in the beginning and 222.3MB in the end (delta: 46.1MB). Free memory was 149.9MB in the beginning and 172.7MB in the end (delta: -22.8MB). Peak memory consumption was 23.2MB. Max. memory is 8.0GB. [2022-07-26 13:50:38,619 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 13:50:38,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.98ms. Allocated memory was 176.2MB in the beginning and 222.3MB in the end (delta: 46.1MB). Free memory was 149.7MB in the beginning and 194.1MB in the end (delta: -44.4MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. [2022-07-26 13:50:38,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.89ms. Allocated memory is still 222.3MB. Free memory was 194.1MB in the beginning and 192.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-26 13:50:38,621 INFO L158 Benchmark]: Boogie Preprocessor took 19.77ms. Allocated memory is still 222.3MB. Free memory was 192.0MB in the beginning and 190.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-26 13:50:38,621 INFO L158 Benchmark]: RCFGBuilder took 767.42ms. Allocated memory is still 222.3MB. Free memory was 190.6MB in the beginning and 157.8MB in the end (delta: 32.8MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-07-26 13:50:38,622 INFO L158 Benchmark]: BuchiAutomizer took 4060.48ms. Allocated memory is still 222.3MB. Free memory was 157.4MB in the beginning and 172.7MB in the end (delta: -15.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-07-26 13:50:38,624 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 304.98ms. Allocated memory was 176.2MB in the beginning and 222.3MB in the end (delta: 46.1MB). Free memory was 149.7MB in the beginning and 194.1MB in the end (delta: -44.4MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.89ms. Allocated memory is still 222.3MB. Free memory was 194.1MB in the beginning and 192.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.77ms. Allocated memory is still 222.3MB. Free memory was 192.0MB in the beginning and 190.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 767.42ms. Allocated memory is still 222.3MB. Free memory was 190.6MB in the beginning and 157.8MB in the end (delta: 32.8MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 4060.48ms. Allocated memory is still 222.3MB. Free memory was 157.4MB in the beginning and 172.7MB in the end (delta: -15.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition. There is no loop in your program. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. 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: nont0 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: 3.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 95 PlacesBefore, 18 PlacesAfterwards, 93 TransitionsBefore, 11 TransitionsAfterwards, 108 CoEnabledTransitionPairs, 7 FixpointIterations, 68 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 0 ConcurrentYvCompositions, 5 ChoiceCompositions, 96 TotalNumberOfCompositions, 177 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 177, positive: 177, positive conditional: 0, positive unconditional: 177, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 89, positive: 89, positive conditional: 0, positive unconditional: 89, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 89, positive: 89, positive conditional: 0, positive unconditional: 89, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 177, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 89, unknown conditional: 0, unknown unconditional: 89] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2022-07-26 13:50:38,662 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...