/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/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/barrier-7t.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 18:42:39,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 18:42:39,875 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 18:42:39,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 18:42:39,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 18:42:39,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 18:42:39,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 18:42:39,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 18:42:39,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 18:42:39,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 18:42:39,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 18:42:39,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 18:42:39,899 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 18:42:39,899 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 18:42:39,900 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 18:42:39,900 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 18:42:39,900 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 18:42:39,901 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 18:42:39,901 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 18:42:39,901 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 18:42:39,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 18:42:39,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 18:42:39,901 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 18:42:39,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 18:42:39,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 18:42:39,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 18:42:39,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 18:42:39,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 18:42:39,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 18:42:39,902 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 18:42:39,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 18:42:39,902 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 18:42:39,902 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 18:42:39,902 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 18:42:39,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 18:42:39,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:42:39,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 18:42:39,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 18:42:39,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 18:42:39,902 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 18:42:39,902 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 18:42:39,903 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 18:42:39,903 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 18:42:40,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 18:42:40,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 18:42:40,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 18:42:40,165 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 18:42:40,167 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 18:42:40,168 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/barrier-7t.c.bpl [2025-04-26 18:42:40,168 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/barrier-7t.c.bpl' [2025-04-26 18:42:40,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 18:42:40,189 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 18:42:40,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 18:42:40,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 18:42:40,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 18:42:40,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/1) ... [2025-04-26 18:42:40,222 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/1) ... [2025-04-26 18:42:40,228 INFO L138 Inliner]: procedures = 8, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 18:42:40,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 18:42:40,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 18:42:40,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 18:42:40,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 18:42:40,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/1) ... [2025-04-26 18:42:40,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/1) ... [2025-04-26 18:42:40,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/1) ... [2025-04-26 18:42:40,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/1) ... [2025-04-26 18:42:40,242 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/1) ... [2025-04-26 18:42:40,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/1) ... [2025-04-26 18:42:40,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/1) ... [2025-04-26 18:42:40,249 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/1) ... [2025-04-26 18:42:40,249 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/1) ... [2025-04-26 18:42:40,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 18:42:40,265 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 18:42:40,265 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 18:42:40,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 18:42:40,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/1) ... [2025-04-26 18:42:40,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:42:40,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:40,291 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 18:42:40,294 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 18:42:40,315 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 18:42:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 18:42:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 18:42:40,316 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 18:42:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 18:42:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 18:42:40,316 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 18:42:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 18:42:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 18:42:40,316 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 18:42:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 18:42:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 18:42:40,316 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 18:42:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 18:42:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 18:42:40,317 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-04-26 18:42:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-26 18:42:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-26 18:42:40,317 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-04-26 18:42:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-26 18:42:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-26 18:42:40,317 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2025-04-26 18:42:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2025-04-26 18:42:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2025-04-26 18:42:40,318 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 18:42:40,362 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 18:42:40,363 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 18:42:40,492 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 18:42:40,492 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 18:42:40,499 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 18:42:40,500 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 18:42:40,500 INFO L201 PluginConnector]: Adding new model barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:42:40 BoogieIcfgContainer [2025-04-26 18:42:40,500 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 18:42:40,501 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 18:42:40,501 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 18:42:40,505 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 18:42:40,505 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:42:40,505 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:42:40" (1/2) ... [2025-04-26 18:42:40,506 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9b2e752 and model type barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 06:42:40, skipping insertion in model container [2025-04-26 18:42:40,506 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:42:40,506 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:42:40" (2/2) ... [2025-04-26 18:42:40,507 INFO L376 chiAutomizerObserver]: Analyzing ICFG barrier-7t.c.bpl [2025-04-26 18:42:40,576 INFO L143 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2025-04-26 18:42:40,603 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 18:42:40,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 18:42:40,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:40,606 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 18:42:40,608 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 18:42:40,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 93 transitions, 235 flow [2025-04-26 18:42:40,693 INFO L116 PetriNetUnfolderBase]: 14/79 cut-off events. [2025-04-26 18:42:40,694 INFO L117 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-04-26 18:42:40,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 79 events. 14/79 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 243 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2025-04-26 18:42:40,699 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 93 transitions, 235 flow [2025-04-26 18:42:40,703 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 79 transitions, 200 flow [2025-04-26 18:42:40,703 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 87 places, 79 transitions, 200 flow [2025-04-26 18:42:40,704 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 79 transitions, 200 flow