/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-name-comparator-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:07:41,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:07:41,511 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:07:41,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:07:41,514 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:07:41,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:07:41,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:07:41,538 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:07:41,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:07:41,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:07:41,539 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:07:41,539 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:07:41,539 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:07:41,539 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:07:41,539 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:07:41,539 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:07:41,539 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:07:41,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:07:41,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:07:41,540 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:07:41,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:07:41,540 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:07:41,540 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:07:41,540 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:07:41,540 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:07:41,540 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:07:41,540 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:07:41,540 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:07:41,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:07:41,541 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:07:41,541 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:07:41,541 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:07:41,541 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:07:41,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:07:41,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:07:41,541 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:07:41,541 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:07:41,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:07:41,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:07:41,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:07:41,766 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-26 16:07:41,766 INFO L274 PluginConnector]: CDTParser initialized [2025-04-26 16:07:41,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/chl-name-comparator-trans.wvr.c [2025-04-26 16:07:43,048 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8de3ceccf/6c1285339bab40feb715d122423a3bcc/FLAG8bf60081b [2025-04-26 16:07:43,259 INFO L389 CDTParser]: Found 1 translation units. [2025-04-26 16:07:43,259 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-trans.wvr.c [2025-04-26 16:07:43,268 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8de3ceccf/6c1285339bab40feb715d122423a3bcc/FLAG8bf60081b [2025-04-26 16:07:44,099 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8de3ceccf/6c1285339bab40feb715d122423a3bcc [2025-04-26 16:07:44,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:07:44,102 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-26 16:07:44,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-26 16:07:44,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-26 16:07:44,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-26 16:07:44,106 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@513790c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44, skipping insertion in model container [2025-04-26 16:07:44,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,120 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-26 16:07:44,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-26 16:07:44,300 INFO L200 MainTranslator]: Completed pre-run [2025-04-26 16:07:44,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-26 16:07:44,366 INFO L204 MainTranslator]: Completed translation [2025-04-26 16:07:44,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44 WrapperNode [2025-04-26 16:07:44,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-26 16:07:44,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:07:44,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:07:44,368 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:07:44,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,411 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 281 [2025-04-26 16:07:44,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:07:44,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:07:44,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:07:44,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:07:44,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,429 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,433 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:07:44,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:07:44,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:07:44,440 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:07:44,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (1/1) ... [2025-04-26 16:07:44,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:07:44,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:07:44,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:07:44,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:07:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-26 16:07:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:07:44,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:07:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:07:44,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:07:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:07:44,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:07:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-26 16:07:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-26 16:07:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-26 16:07:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:07:44,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:07:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-26 16:07:44,489 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:07:44,582 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:07:44,584 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:07:44,913 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:07:44,913 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:07:44,922 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:07:44,922 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-04-26 16:07:44,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:07:44 BoogieIcfgContainer [2025-04-26 16:07:44,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:07:44,923 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:07:44,923 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:07:44,927 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:07:44,927 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:07:44,927 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.04 04:07:44" (1/3) ... [2025-04-26 16:07:44,928 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74ae801e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:07:44, skipping insertion in model container [2025-04-26 16:07:44,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:07:44,928 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:07:44" (2/3) ... [2025-04-26 16:07:44,928 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74ae801e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:07:44, skipping insertion in model container [2025-04-26 16:07:44,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:07:44,928 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:07:44" (3/3) ... [2025-04-26 16:07:44,929 INFO L376 chiAutomizerObserver]: Analyzing ICFG chl-name-comparator-trans.wvr.c [2025-04-26 16:07:45,012 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 16:07:45,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 370 transitions, 761 flow [2025-04-26 16:07:45,151 INFO L116 PetriNetUnfolderBase]: 25/364 cut-off events. [2025-04-26 16:07:45,152 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 16:07:45,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 364 events. 25/364 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 915 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 274. Up to 2 conditions per place. [2025-04-26 16:07:45,162 INFO L82 GeneralOperation]: Start removeDead. Operand has 352 places, 370 transitions, 761 flow [2025-04-26 16:07:45,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 349 places, 364 transitions, 746 flow [2025-04-26 16:07:45,175 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 349 places, 364 transitions, 746 flow [2025-04-26 16:07:45,184 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:07:45,184 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:07:45,184 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:07:45,184 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:07:45,184 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:07:45,184 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:07:45,184 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:07:45,185 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:07:45,186 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:08:25,164 INFO L131 ngComponentsAnalysis]: Automaton has 19278 accepting balls. 605584 [2025-04-26 16:08:25,165 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:08:25,165 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:08:25,195 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:08:25,196 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:08:25,196 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:08:25,197 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 893569 states, but on-demand construction may add more states