/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/parallel-bakery-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 12:18:41,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:18:41,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:18:41,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:18:41,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:18:41,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:18:41,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:18:41,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:18:41,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:18:41,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:18:41,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:18:41,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:18:41,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:18:41,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:18:41,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:18:41,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:18:41,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:18:41,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:18:41,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:18:41,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:18:41,619 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:18:41,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:18:41,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:18:41,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:18:41,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:18:41,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 12:18:41,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:18:41,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:18:41,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:18:41,660 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 12:18:41,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:18:41,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:18:41,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:18:41,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:18:41,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:18:41,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:18:41,719 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:18:41,720 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 12:18:41,720 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 12:18:41,721 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 12:18:41,721 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 12:18:41,721 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 12:18:41,722 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 12:18:41,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:18:41,722 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:18:41,723 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 12:18:41,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:18:41,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:18:41,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:18:41,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 12:18:41,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 12:18:41,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 12:18:41,724 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:18:41,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:18:41,724 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 12:18:41,724 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:18:41,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 12:18:41,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:18:41,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:18:41,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:18:41,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:18:41,728 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 12:18:41,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 12:18:42,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:18:42,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:18:42,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:18:42,151 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:18:42,156 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:18:42,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c [2022-07-22 12:18:42,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78b3ef1ab/64320cbc44304eb099476a8622ee40b8/FLAG7472daf0b [2022-07-22 12:18:42,863 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:18:42,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c [2022-07-22 12:18:42,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78b3ef1ab/64320cbc44304eb099476a8622ee40b8/FLAG7472daf0b [2022-07-22 12:18:43,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78b3ef1ab/64320cbc44304eb099476a8622ee40b8 [2022-07-22 12:18:43,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:18:43,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 12:18:43,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:18:43,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:18:43,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:18:43,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:18:43" (1/1) ... [2022-07-22 12:18:43,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a5d27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43, skipping insertion in model container [2022-07-22 12:18:43,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:18:43" (1/1) ... [2022-07-22 12:18:43,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:18:43,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:18:43,535 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/parallel-bakery-2.wvr.c[3512,3525] [2022-07-22 12:18:43,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:18:43,557 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:18:43,619 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/parallel-bakery-2.wvr.c[3512,3525] [2022-07-22 12:18:43,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:18:43,650 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:18:43,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43 WrapperNode [2022-07-22 12:18:43,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:18:43,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:18:43,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:18:43,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:18:43,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43" (1/1) ... [2022-07-22 12:18:43,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43" (1/1) ... [2022-07-22 12:18:43,748 INFO L137 Inliner]: procedures = 21, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 151 [2022-07-22 12:18:43,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:18:43,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:18:43,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:18:43,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:18:43,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43" (1/1) ... [2022-07-22 12:18:43,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43" (1/1) ... [2022-07-22 12:18:43,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43" (1/1) ... [2022-07-22 12:18:43,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43" (1/1) ... [2022-07-22 12:18:43,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43" (1/1) ... [2022-07-22 12:18:43,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43" (1/1) ... [2022-07-22 12:18:43,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43" (1/1) ... [2022-07-22 12:18:43,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:18:43,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:18:43,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:18:43,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:18:43,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43" (1/1) ... [2022-07-22 12:18:43,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 12:18:43,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:18:43,852 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 12:18:43,873 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 12:18:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:18:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-22 12:18:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-22 12:18:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-22 12:18:43,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-22 12:18:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:18:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 12:18:43,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 12:18:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-22 12:18:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-22 12:18:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:18:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:18:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 12:18:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 12:18:43,942 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 12:18:44,083 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:18:44,086 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:18:44,410 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:18:44,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:18:44,562 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 12:18:44,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:18:44 BoogieIcfgContainer [2022-07-22 12:18:44,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:18:44,571 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 12:18:44,571 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 12:18:44,582 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 12:18:44,583 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:18:44,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 12:18:43" (1/3) ... [2022-07-22 12:18:44,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32b3d3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:18:44, skipping insertion in model container [2022-07-22 12:18:44,584 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:18:44,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:18:43" (2/3) ... [2022-07-22 12:18:44,585 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32b3d3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 12:18:44, skipping insertion in model container [2022-07-22 12:18:44,585 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 12:18:44,585 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:18:44" (3/3) ... [2022-07-22 12:18:44,600 INFO L322 chiAutomizerObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2022-07-22 12:18:44,688 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-22 12:18:44,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 104 transitions, 224 flow [2022-07-22 12:18:44,775 INFO L129 PetriNetUnfolder]: 2/100 cut-off events. [2022-07-22 12:18:44,776 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 12:18:44,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 100 events. 2/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-07-22 12:18:44,779 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 104 transitions, 224 flow [2022-07-22 12:18:44,787 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 100 transitions, 212 flow [2022-07-22 12:18:44,791 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-22 12:18:44,807 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 100 transitions, 212 flow [2022-07-22 12:18:44,810 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 100 transitions, 212 flow [2022-07-22 12:18:44,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 100 transitions, 212 flow [2022-07-22 12:18:44,839 INFO L129 PetriNetUnfolder]: 2/100 cut-off events. [2022-07-22 12:18:44,839 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 12:18:44,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 100 events. 2/100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-07-22 12:18:44,846 INFO L116 LiptonReduction]: Number of co-enabled transitions 572 [2022-07-22 12:18:47,871 INFO L131 LiptonReduction]: Checked pairs total: 2732 [2022-07-22 12:18:47,872 INFO L133 LiptonReduction]: Total number of compositions: 83 [2022-07-22 12:18:47,902 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 12:18:47,902 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 12:18:47,902 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 12:18:47,903 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 12:18:47,903 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 12:18:47,903 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 12:18:47,903 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 12:18:47,903 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 12:18:47,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-07-22 12:18:47,977 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 12:18:47,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 12:18:47,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 12:18:47 BoogieIcfgContainer [2022-07-22 12:18:47,983 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 12:18:47,986 INFO L158 Benchmark]: Toolchain (without parser) took 4768.60ms. Allocated memory was 151.0MB in the beginning and 181.4MB in the end (delta: 30.4MB). Free memory was 125.4MB in the beginning and 80.3MB in the end (delta: 45.2MB). Peak memory consumption was 77.0MB. Max. memory is 8.0GB. [2022-07-22 12:18:47,987 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-07-22 12:18:47,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.31ms. Allocated memory is still 151.0MB. Free memory was 125.3MB in the beginning and 114.4MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-07-22 12:18:47,989 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.97ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 112.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-07-22 12:18:47,990 INFO L158 Benchmark]: Boogie Preprocessor took 48.00ms. Allocated memory is still 151.0MB. Free memory was 112.6MB in the beginning and 111.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-07-22 12:18:47,990 INFO L158 Benchmark]: RCFGBuilder took 766.81ms. Allocated memory is still 151.0MB. Free memory was 111.2MB in the beginning and 131.7MB in the end (delta: -20.5MB). Peak memory consumption was 20.9MB. Max. memory is 8.0GB. [2022-07-22 12:18:47,991 INFO L158 Benchmark]: BuchiAutomizer took 3412.61ms. Allocated memory was 151.0MB in the beginning and 181.4MB in the end (delta: 30.4MB). Free memory was 131.2MB in the beginning and 80.3MB in the end (delta: 50.9MB). Peak memory consumption was 81.3MB. Max. memory is 8.0GB. [2022-07-22 12:18:47,996 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 430.31ms. Allocated memory is still 151.0MB. Free memory was 125.3MB in the beginning and 114.4MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 95.97ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 112.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.00ms. Allocated memory is still 151.0MB. Free memory was 112.6MB in the beginning and 111.4MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 766.81ms. Allocated memory is still 151.0MB. Free memory was 111.2MB in the beginning and 131.7MB in the end (delta: -20.5MB). Peak memory consumption was 20.9MB. Max. memory is 8.0GB. * BuchiAutomizer took 3412.61ms. Allocated memory was 151.0MB in the beginning and 181.4MB in the end (delta: 30.4MB). Free memory was 131.2MB in the beginning and 80.3MB in the end (delta: 50.9MB). Peak memory consumption was 81.3MB. 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 3.2s 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: 3.1s - 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: 3.1s, 105 PlacesBefore, 30 PlacesAfterwards, 100 TransitionsBefore, 23 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 7 FixpointIterations, 62 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 83 TotalNumberOfCompositions, 2732 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1462, positive: 1263, positive conditional: 0, positive unconditional: 1263, negative: 199, negative conditional: 0, negative unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 413, positive: 382, positive conditional: 0, positive unconditional: 382, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 413, positive: 372, positive conditional: 0, positive unconditional: 372, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 91, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1462, positive: 881, positive conditional: 0, positive unconditional: 881, negative: 168, negative conditional: 0, negative unconditional: 168, unknown: 413, unknown conditional: 0, unknown unconditional: 413] , Statistics on independence cache: Total cache size (in pairs): 125, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 RESULT: Ultimate proved your program to be correct! [2022-07-22 12:18:48,051 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...