/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/gemcutter/Termination.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:36:02,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:36:02,657 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:36:02,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:36:02,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:36:02,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:36:02,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:36:02,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:36:02,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:36:02,684 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:36:02,684 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:36:02,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:36:02,684 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:36:02,684 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:36:02,684 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:36:02,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:36:02,685 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:36:02,686 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:36:02,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:36:02,686 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:36:02,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:36:02,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:36:02,686 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:36:02,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:36:02,686 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:36:02,686 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:36:02,686 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:36:02,686 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:36:02,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:36:02,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:36:02,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:36:02,898 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-26 16:36:02,898 INFO L274 PluginConnector]: CDTParser initialized [2025-04-26 16:36:02,900 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c [2025-04-26 16:36:04,187 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3a7b6f764/3a768c5afe3b4148ad2c746c5fec024e/FLAG320e740a9 [2025-04-26 16:36:04,399 INFO L389 CDTParser]: Found 1 translation units. [2025-04-26 16:36:04,400 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c [2025-04-26 16:36:04,407 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3a7b6f764/3a768c5afe3b4148ad2c746c5fec024e/FLAG320e740a9 [2025-04-26 16:36:05,187 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3a7b6f764/3a768c5afe3b4148ad2c746c5fec024e [2025-04-26 16:36:05,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:36:05,190 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-26 16:36:05,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-26 16:36:05,191 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-26 16:36:05,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-26 16:36:05,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3196af8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05, skipping insertion in model container [2025-04-26 16:36:05,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,208 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-26 16:36:05,416 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c[6540,6553] [2025-04-26 16:36:05,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-26 16:36:05,434 INFO L200 MainTranslator]: Completed pre-run [2025-04-26 16:36:05,492 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c[6540,6553] [2025-04-26 16:36:05,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-26 16:36:05,514 INFO L204 MainTranslator]: Completed translation [2025-04-26 16:36:05,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05 WrapperNode [2025-04-26 16:36:05,515 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-26 16:36:05,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:36:05,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:36:05,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:36:05,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,564 INFO L138 Inliner]: procedures = 25, calls = 61, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 573 [2025-04-26 16:36:05,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:36:05,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:36:05,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:36:05,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:36:05,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,593 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:36:05,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:36:05,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:36:05,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:36:05,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (1/1) ... [2025-04-26 16:36:05,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:36:05,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:36:05,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-26 16:36:05,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-26 16:36:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-26 16:36:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:36:05,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:36:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:36:05,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:36:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:36:05,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:36:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-26 16:36:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-26 16:36:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-26 16:36:05,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:36:05,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:36:05,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-26 16:36:05,668 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 16:36:05,767 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:36:05,768 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:36:06,327 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:36:06,328 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:36:06,348 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:36:06,348 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-04-26 16:36:06,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:36:06 BoogieIcfgContainer [2025-04-26 16:36:06,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:36:06,349 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:36:06,349 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:36:06,352 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:36:06,353 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:36:06,353 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.04 04:36:05" (1/3) ... [2025-04-26 16:36:06,354 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15dd4933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:36:06, skipping insertion in model container [2025-04-26 16:36:06,354 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:36:06,354 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.04 04:36:05" (2/3) ... [2025-04-26 16:36:06,354 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15dd4933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:36:06, skipping insertion in model container [2025-04-26 16:36:06,354 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:36:06,354 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:36:06" (3/3) ... [2025-04-26 16:36:06,355 INFO L376 chiAutomizerObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2025-04-26 16:36:06,498 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 16:36:06,523 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:36:06,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:36:06,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:36:06,526 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-26 16:36:06,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-26 16:36:06,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 712 places, 775 transitions, 1571 flow [2025-04-26 16:36:06,832 INFO L116 PetriNetUnfolderBase]: 70/769 cut-off events. [2025-04-26 16:36:06,839 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 16:36:06,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 769 events. 70/769 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2680 event pairs, 0 based on Foata normal form. 0/698 useless extension candidates. Maximal degree in co-relation 579. Up to 2 conditions per place. [2025-04-26 16:36:06,857 INFO L82 GeneralOperation]: Start removeDead. Operand has 712 places, 775 transitions, 1571 flow [2025-04-26 16:36:06,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 709 places, 769 transitions, 1556 flow [2025-04-26 16:36:06,890 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 709 places, 769 transitions, 1556 flow [2025-04-26 16:36:06,896 INFO L135 AmpleReduction]: Starting ample reduction