/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -i ../../../trunk/examples/svcomp/weaver/chl-match-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-21b0908 [2022-07-22 11:48:33,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 11:48:33,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 11:48:33,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 11:48:33,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 11:48:33,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 11:48:33,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 11:48:33,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 11:48:33,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 11:48:33,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 11:48:33,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 11:48:33,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 11:48:33,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 11:48:33,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 11:48:33,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 11:48:33,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 11:48:33,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 11:48:33,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 11:48:33,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 11:48:33,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 11:48:33,590 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 11:48:33,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 11:48:33,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 11:48:33,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 11:48:33,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 11:48:33,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-07-22 11:48:33,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 11:48:33,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 11:48:33,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 11:48:33,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 11:48:33,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 11:48:33,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 11:48:33,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 11:48:33,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 11:48:33,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 11:48:33,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 11:48:33,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 11:48:33,629 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2022-07-22 11:48:33,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 11:48:33,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 11:48:33,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 11:48:33,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 11:48:33,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 11:48:33,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 11:48:33,682 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 11:48:33,683 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 11:48:33,683 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 11:48:33,684 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 11:48:33,684 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 11:48:33,684 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 11:48:33,685 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 11:48:33,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 11:48:33,685 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 11:48:33,685 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 11:48:33,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 11:48:33,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 11:48:33,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 11:48:33,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 11:48:33,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 11:48:33,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 11:48:33,686 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 11:48:33,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 11:48:33,687 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 11:48:33,687 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 11:48:33,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 11:48:33,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 11:48:33,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 11:48:33,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 11:48:33,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 11:48:33,689 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 11:48:33,692 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 11:48:33,692 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-07-22 11:48:34,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 11:48:34,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 11:48:34,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 11:48:34,155 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 11:48:34,155 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 11:48:34,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2022-07-22 11:48:34,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d464b10/6f0929a251a346b7b1d890d4ddc4b2a2/FLAG5bacfe566 [2022-07-22 11:48:34,826 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 11:48:34,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2022-07-22 11:48:34,843 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d464b10/6f0929a251a346b7b1d890d4ddc4b2a2/FLAG5bacfe566 [2022-07-22 11:48:35,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d464b10/6f0929a251a346b7b1d890d4ddc4b2a2 [2022-07-22 11:48:35,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 11:48:35,187 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-07-22 11:48:35,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 11:48:35,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 11:48:35,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 11:48:35,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:48:35" (1/1) ... [2022-07-22 11:48:35,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e82318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35, skipping insertion in model container [2022-07-22 11:48:35,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:48:35" (1/1) ... [2022-07-22 11:48:35,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 11:48:35,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 11:48:35,571 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-match-subst.wvr.c[3017,3030] [2022-07-22 11:48:35,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:48:35,598 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 11:48:35,656 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-match-subst.wvr.c[3017,3030] [2022-07-22 11:48:35,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:48:35,685 INFO L208 MainTranslator]: Completed translation [2022-07-22 11:48:35,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35 WrapperNode [2022-07-22 11:48:35,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 11:48:35,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 11:48:35,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 11:48:35,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 11:48:35,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35" (1/1) ... [2022-07-22 11:48:35,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35" (1/1) ... [2022-07-22 11:48:35,755 INFO L137 Inliner]: procedures = 23, calls = 34, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 239 [2022-07-22 11:48:35,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 11:48:35,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 11:48:35,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 11:48:35,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 11:48:35,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35" (1/1) ... [2022-07-22 11:48:35,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35" (1/1) ... [2022-07-22 11:48:35,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35" (1/1) ... [2022-07-22 11:48:35,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35" (1/1) ... [2022-07-22 11:48:35,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35" (1/1) ... [2022-07-22 11:48:35,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35" (1/1) ... [2022-07-22 11:48:35,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35" (1/1) ... [2022-07-22 11:48:35,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 11:48:35,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 11:48:35,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 11:48:35,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 11:48:35,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35" (1/1) ... [2022-07-22 11:48:35,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 11:48:35,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:48:35,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 11:48:35,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 11:48:35,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 11:48:35,896 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-22 11:48:35,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-22 11:48:35,897 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-22 11:48:35,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-22 11:48:35,897 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-22 11:48:35,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-22 11:48:35,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 11:48:35,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 11:48:35,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 11:48:35,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 11:48:35,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 11:48:35,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 11:48:35,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 11:48:35,901 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 11:48:36,017 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 11:48:36,020 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 11:48:36,539 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 11:48:36,556 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 11:48:36,556 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 11:48:36,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:48:36 BoogieIcfgContainer [2022-07-22 11:48:36,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 11:48:36,564 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 11:48:36,564 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 11:48:36,576 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 11:48:36,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:48:36,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 11:48:35" (1/3) ... [2022-07-22 11:48:36,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e288b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 11:48:36, skipping insertion in model container [2022-07-22 11:48:36,580 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:48:36,584 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:48:35" (2/3) ... [2022-07-22 11:48:36,584 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e288b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 11:48:36, skipping insertion in model container [2022-07-22 11:48:36,585 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 11:48:36,585 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:48:36" (3/3) ... [2022-07-22 11:48:36,590 INFO L322 chiAutomizerObserver]: Analyzing ICFG chl-match-subst.wvr.c [2022-07-22 11:48:36,810 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-22 11:48:36,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 317 places, 336 transitions, 696 flow [2022-07-22 11:48:37,020 INFO L129 PetriNetUnfolder]: 26/330 cut-off events. [2022-07-22 11:48:37,020 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-22 11:48:37,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 330 events. 26/330 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 622 event pairs, 0 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 250. Up to 2 conditions per place. [2022-07-22 11:48:37,038 INFO L82 GeneralOperation]: Start removeDead. Operand has 317 places, 336 transitions, 696 flow [2022-07-22 11:48:37,070 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 314 places, 330 transitions, 678 flow [2022-07-22 11:48:37,087 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 11:48:37,088 INFO L301 stractBuchiCegarLoop]: Hoare is false [2022-07-22 11:48:37,088 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 11:48:37,088 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 11:48:37,088 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 11:48:37,088 INFO L305 stractBuchiCegarLoop]: Difference is false [2022-07-22 11:48:37,088 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 11:48:37,089 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 11:48:37,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states Received shutdown request... [2022-07-22 11:51:16,807 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-07-22 11:51:17,890 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 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown