/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/pthread-atomic/read_write_lock-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:10:13,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:10:13,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:10:13,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-07-22 12:10:13,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:10:13,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:10:13,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:10:13,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:10:13,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:10:13,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:10:13,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:10:13,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:10:13,607 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:10:13,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:10:13,610 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:10:13,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:10:13,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:10:13,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 12:10:13,647 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf [2022-07-22 12:10:13,694 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:10:13,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:10:13,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:10:13,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:10:13,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:10:13,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:10:13,698 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:10:13,699 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:10:13,699 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:10:13,700 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:10:13,700 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:10:13,700 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:10:13,701 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:10:13,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:10:13,701 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:10:13,701 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:10:13,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:10:13,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:10:13,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:10:13,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:10:13,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:10:13,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:10:13,703 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:10:13,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:10:13,703 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:10:13,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:10:13,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:10:13,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:10:13,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:10:13,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:10:13,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:10:13,707 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:10:13,707 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:10:14,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:10:14,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:10:14,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:10:14,091 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:10:14,092 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:10:14,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2022-07-22 12:10:14,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f971754e5/6c5b1f9987e34cd3b305e758705c7cdc/FLAGaf0ba6efd [2022-07-22 12:10:14,910 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:10:14,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-2.i [2022-07-22 12:10:14,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f971754e5/6c5b1f9987e34cd3b305e758705c7cdc/FLAGaf0ba6efd [2022-07-22 12:10:15,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f971754e5/6c5b1f9987e34cd3b305e758705c7cdc [2022-07-22 12:10:15,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:10:15,215 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:10:15,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:10:15,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:10:15,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:10:15,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:15,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6445cff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15, skipping insertion in model container [2022-07-22 12:10:15,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:15,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:10:15,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:10:15,599 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-22 12:10:15,756 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-atomic/read_write_lock-2.i[31244,31257] [2022-07-22 12:10:15,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:10:15,781 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:10:15,797 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-22 12:10:15,824 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-atomic/read_write_lock-2.i[31244,31257] [2022-07-22 12:10:15,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:10:15,889 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:10:15,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15 WrapperNode [2022-07-22 12:10:15,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:10:15,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:10:15,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:10:15,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:10:15,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:15,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:15,982 INFO L137 Inliner]: procedures = 174, calls = 51, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 119 [2022-07-22 12:10:15,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:10:15,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:10:15,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:10:15,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:10:15,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:15,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:15,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:15,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:10:16,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:10:16,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:10:16,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:10:16,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (1/1) ... [2022-07-22 12:10:16,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:10:16,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:10:16,079 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 12:10:16,102 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 12:10:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 12:10:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:10:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 12:10:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:10:16,199 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-07-22 12:10:16,204 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-07-22 12:10:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:10:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:10:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:10:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 12:10:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:10:16,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:10:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-07-22 12:10:16,206 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-07-22 12:10:16,208 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 12:10:16,319 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:10:16,322 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:10:16,553 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:10:16,603 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:10:16,603 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 12:10:16,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:10:16 BoogieIcfgContainer [2022-07-22 12:10:16,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:10:16,607 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:10:16,607 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:10:16,611 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:10:16,612 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:10:16,612 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:10:15" (1/3) ... [2022-07-22 12:10:16,613 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c66ec44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:10:16, skipping insertion in model container [2022-07-22 12:10:16,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:10:16,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:10:15" (2/3) ... [2022-07-22 12:10:16,614 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c66ec44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:10:16, skipping insertion in model container [2022-07-22 12:10:16,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:10:16,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:10:16" (3/3) ... [2022-07-22 12:10:16,616 INFO L322 chiAutomizerObserver]: Analyzing ICFG read_write_lock-2.i [2022-07-22 12:10:16,769 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-22 12:10:16,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 116 transitions, 264 flow [2022-07-22 12:10:16,869 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2022-07-22 12:10:16,869 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-07-22 12:10:16,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 108 events. 2/108 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-07-22 12:10:16,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 116 transitions, 264 flow [2022-07-22 12:10:16,885 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 240 flow [2022-07-22 12:10:16,889 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-22 12:10:16,904 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 240 flow [2022-07-22 12:10:16,907 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 240 flow [2022-07-22 12:10:16,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 240 flow [2022-07-22 12:10:16,944 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2022-07-22 12:10:16,944 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-07-22 12:10:16,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 108 events. 2/108 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-07-22 12:10:16,952 INFO L116 LiptonReduction]: Number of co-enabled transitions 2408 [2022-07-22 12:10:20,566 INFO L131 LiptonReduction]: Checked pairs total: 9937 [2022-07-22 12:10:20,567 INFO L133 LiptonReduction]: Total number of compositions: 79 [2022-07-22 12:10:20,598 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 12:10:20,598 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 12:10:20,598 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 12:10:20,599 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 12:10:20,600 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 12:10:20,600 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 12:10:20,600 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 12:10:20,600 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 12:10:20,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 12:10:21,049 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 12:10:21,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 12:10:21,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 12:10:21 BoogieIcfgContainer [2022-07-22 12:10:21,056 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 12:10:21,059 INFO L158 Benchmark]: Toolchain (without parser) took 5845.97ms. Allocated memory was 151.0MB in the beginning and 181.4MB in the end (delta: 30.4MB). Free memory was 124.2MB in the beginning and 129.5MB in the end (delta: -5.3MB). Peak memory consumption was 106.5MB. Max. memory is 8.0GB. [2022-07-22 12:10:21,060 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory is still 122.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:10:21,062 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.51ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 104.7MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-07-22 12:10:21,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.73ms. Allocated memory is still 151.0MB. Free memory was 104.7MB in the beginning and 102.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 12:10:21,064 INFO L158 Benchmark]: Boogie Preprocessor took 28.96ms. Allocated memory is still 151.0MB. Free memory was 102.6MB in the beginning and 101.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 12:10:21,065 INFO L158 Benchmark]: RCFGBuilder took 593.13ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 120.6MB in the end (delta: -19.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-07-22 12:10:21,067 INFO L158 Benchmark]: BuchiAutomizer took 4448.47ms. Allocated memory was 151.0MB in the beginning and 181.4MB in the end (delta: 30.4MB). Free memory was 120.1MB in the beginning and 129.5MB in the end (delta: -9.4MB). Peak memory consumption was 102.3MB. Max. memory is 8.0GB. [2022-07-22 12:10:21,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 151.0MB. Free memory is still 122.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 672.51ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 104.7MB in the end (delta: 19.3MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 91.73ms. Allocated memory is still 151.0MB. Free memory was 104.7MB in the beginning and 102.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.96ms. Allocated memory is still 151.0MB. Free memory was 102.6MB in the beginning and 101.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 593.13ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 120.6MB in the end (delta: -19.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * BuchiAutomizer took 4448.47ms. Allocated memory was 151.0MB in the beginning and 181.4MB in the end (delta: 30.4MB). Free memory was 120.1MB in the beginning and 129.5MB in the end (delta: -9.4MB). Peak memory consumption was 102.3MB. 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 4.2s 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: 3.7s - 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: 3.7s, 119 PlacesBefore, 50 PlacesAfterwards, 108 TransitionsBefore, 38 TransitionsAfterwards, 2408 CoEnabledTransitionPairs, 8 FixpointIterations, 34 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 79 TotalNumberOfCompositions, 9937 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5512, positive: 5208, positive conditional: 0, positive unconditional: 5208, negative: 304, negative conditional: 0, negative unconditional: 304, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1852, positive: 1795, positive conditional: 0, positive unconditional: 1795, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1852, positive: 1768, positive conditional: 0, positive unconditional: 1768, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 131, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5512, positive: 3413, positive conditional: 0, positive unconditional: 3413, negative: 247, negative conditional: 0, negative unconditional: 247, unknown: 1852, unknown conditional: 0, unknown unconditional: 1852] , Statistics on independence cache: Total cache size (in pairs): 409, Positive cache size: 379, Positive conditional cache size: 0, Positive unconditional cache size: 379, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30 RESULT: Ultimate proved your program to be correct! [2022-07-22 12:10:21,143 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...