/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/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.fairness.type.for.concurrent.programs FAIRNESS_INTERSECTION -i ../../../trunk/examples/svcomp/weaver/chl-match-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.me.fairness-42053ae-m [2023-09-08 14:40:52,602 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-09-08 14:40:52,710 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-09-08 14:40:52,748 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-08 14:40:52,749 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-08 14:40:52,749 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-08 14:40:52,750 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-08 14:40:52,750 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-09-08 14:40:52,765 INFO L137 SettingsManager]: * Use SBE=true [2023-09-08 14:40:52,768 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-09-08 14:40:52,768 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-09-08 14:40:52,769 INFO L137 SettingsManager]: * Use old map elimination=false [2023-09-08 14:40:52,769 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-09-08 14:40:52,770 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-09-08 14:40:52,770 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-09-08 14:40:52,771 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-08 14:40:52,771 INFO L137 SettingsManager]: * sizeof long=4 [2023-09-08 14:40:52,771 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-08 14:40:52,771 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-08 14:40:52,771 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-09-08 14:40:52,771 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-09-08 14:40:52,772 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-09-08 14:40:52,773 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-09-08 14:40:52,773 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-09-08 14:40:52,773 INFO L137 SettingsManager]: * sizeof long double=12 [2023-09-08 14:40:52,773 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-09-08 14:40:52,773 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-09-08 14:40:52,773 INFO L137 SettingsManager]: * Use constant arrays=true [2023-09-08 14:40:52,773 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-09-08 14:40:52,774 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-08 14:40:52,774 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-08 14:40:52,775 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-08 14:40:52,775 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-08 14:40:52,775 INFO L137 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-08 14:40:52,776 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-09-08 14:40:52,776 INFO L137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Fairness type for concurrent programs -> FAIRNESS_INTERSECTION [2023-09-08 14:40:53,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-08 14:40:53,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-08 14:40:53,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-08 14:40:53,169 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-08 14:40:53,169 INFO L274 PluginConnector]: CDTParser initialized [2023-09-08 14:40:53,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2023-09-08 14:40:54,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-08 14:40:54,461 INFO L384 CDTParser]: Found 1 translation units. [2023-09-08 14:40:54,461 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2023-09-08 14:40:54,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c6cda159/5d9c762415cd42af9ca90c27475aff9b/FLAG95ef83dd0 [2023-09-08 14:40:54,481 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c6cda159/5d9c762415cd42af9ca90c27475aff9b [2023-09-08 14:40:54,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-08 14:40:54,484 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-08 14:40:54,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-08 14:40:54,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-08 14:40:54,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-08 14:40:54,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54278b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54, skipping insertion in model container [2023-09-08 14:40:54,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-08 14:40:54,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-08 14:40:54,632 WARN L247 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] [2023-09-08 14:40:54,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 14:40:54,649 INFO L203 MainTranslator]: Completed pre-run [2023-09-08 14:40:54,680 WARN L247 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] [2023-09-08 14:40:54,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-08 14:40:54,695 INFO L208 MainTranslator]: Completed translation [2023-09-08 14:40:54,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54 WrapperNode [2023-09-08 14:40:54,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-08 14:40:54,697 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-08 14:40:54,697 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-08 14:40:54,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-08 14:40:54,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,751 INFO L138 Inliner]: procedures = 23, calls = 34, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 200 [2023-09-08 14:40:54,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-08 14:40:54,753 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-08 14:40:54,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-08 14:40:54,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-08 14:40:54,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,777 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,797 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,799 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-08 14:40:54,800 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-08 14:40:54,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-08 14:40:54,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-08 14:40:54,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54" (1/1) ... [2023-09-08 14:40:54,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-09-08 14:40:54,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-08 14:40:54,830 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) [2023-09-08 14:40:54,848 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 [2023-09-08 14:40:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-08 14:40:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-08 14:40:54,861 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-08 14:40:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-08 14:40:54,862 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-08 14:40:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-08 14:40:54,862 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-08 14:40:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-08 14:40:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-08 14:40:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-08 14:40:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-08 14:40:54,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-08 14:40:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-08 14:40:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-08 14:40:54,864 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-08 14:40:54,945 INFO L236 CfgBuilder]: Building ICFG [2023-09-08 14:40:54,946 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-08 14:40:55,200 INFO L277 CfgBuilder]: Performing block encoding [2023-09-08 14:40:55,208 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-08 14:40:55,208 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-08 14:40:55,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 02:40:55 BoogieIcfgContainer [2023-09-08 14:40:55,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-08 14:40:55,210 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-09-08 14:40:55,210 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-09-08 14:40:55,212 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-09-08 14:40:55,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-09-08 14:40:55,213 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.09 02:40:54" (1/3) ... [2023-09-08 14:40:55,214 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3885569f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.09 02:40:55, skipping insertion in model container [2023-09-08 14:40:55,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-09-08 14:40:55,214 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:40:54" (2/3) ... [2023-09-08 14:40:55,214 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3885569f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.09 02:40:55, skipping insertion in model container [2023-09-08 14:40:55,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-09-08 14:40:55,214 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 02:40:55" (3/3) ... [2023-09-08 14:40:55,215 INFO L332 chiAutomizerObserver]: Analyzing ICFG chl-match-subst.wvr.c [2023-09-08 14:40:55,325 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-09-08 14:40:55,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 241 transitions, 506 flow [2023-09-08 14:40:55,454 INFO L124 PetriNetUnfolderBase]: 14/235 cut-off events. [2023-09-08 14:40:55,455 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-09-08 14:40:55,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 235 events. 14/235 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 322 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 160. Up to 2 conditions per place. [2023-09-08 14:40:55,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 234 places, 241 transitions, 506 flow [2023-09-08 14:40:55,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 235 transitions, 488 flow [2023-09-08 14:40:55,490 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-09-08 14:40:55,491 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-09-08 14:40:55,491 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-09-08 14:40:55,491 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-09-08 14:40:55,491 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-09-08 14:40:55,491 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-09-08 14:40:55,491 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-09-08 14:40:55,492 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-09-08 14:40:55,493 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand null