/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/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 16:24:44,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:24:44,957 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:24:44,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:24:44,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:24:44,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:24:44,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:24:44,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:24:44,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:24:44,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:24:44,976 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:24:44,976 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:24:44,976 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:24:44,976 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:24:44,976 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:24:44,976 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:24:44,976 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:24:44,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:24:44,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:24:44,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:24:44,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:24:44,978 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:24:44,978 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:24:44,978 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:24:45,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:24:45,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:24:45,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:24:45,201 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:24:45,202 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:24:45,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/barrier-7t.c.bpl [2025-04-26 16:24:45,202 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/barrier-7t.c.bpl' [2025-04-26 16:24:45,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:24:45,225 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:24:45,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:45,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:24:45,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:24:45,233 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 04:24:45" (1/1) ... [2025-04-26 16:24:45,257 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 04:24:45" (1/1) ... [2025-04-26 16:24:45,262 INFO L138 Inliner]: procedures = 8, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:24:45,263 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:45,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:24:45,265 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:24:45,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:24:45,269 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 04:24:45" (1/1) ... [2025-04-26 16:24:45,270 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 04:24:45" (1/1) ... [2025-04-26 16:24:45,271 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 04:24:45" (1/1) ... [2025-04-26 16:24:45,271 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 04:24:45" (1/1) ... [2025-04-26 16:24:45,273 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 04:24:45" (1/1) ... [2025-04-26 16:24:45,275 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 04:24:45" (1/1) ... [2025-04-26 16:24:45,281 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 04:24:45" (1/1) ... [2025-04-26 16:24:45,282 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 04:24:45" (1/1) ... [2025-04-26 16:24:45,282 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 04:24:45" (1/1) ... [2025-04-26 16:24:45,293 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:24:45,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:24:45,294 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:24:45,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:24:45,295 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 04:24:45" (1/1) ... [2025-04-26 16:24:45,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:45,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:45,320 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 16:24:45,325 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 16:24:45,347 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:24:45,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:24:45,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:24:45,348 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:24:45,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:24:45,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:24:45,348 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:24:45,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:24:45,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:24:45,348 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:24:45,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:24:45,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:24:45,348 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 16:24:45,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 16:24:45,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 16:24:45,349 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-04-26 16:24:45,349 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-26 16:24:45,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-26 16:24:45,349 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-04-26 16:24:45,349 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-26 16:24:45,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-26 16:24:45,349 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2025-04-26 16:24:45,349 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2025-04-26 16:24:45,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2025-04-26 16:24:45,350 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 16:24:45,387 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:24:45,388 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:24:45,516 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:24:45,516 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:24:45,524 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:24:45,524 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:24:45,524 INFO L201 PluginConnector]: Adding new model barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:45 BoogieIcfgContainer [2025-04-26 16:24:45,524 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:24:45,525 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:24:45,525 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:24:45,529 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:24:45,530 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:45,530 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 04:24:45" (1/2) ... [2025-04-26 16:24:45,531 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@186abba3 and model type barrier-7t.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:24:45, skipping insertion in model container [2025-04-26 16:24:45,531 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:45,531 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 04:24:45" (2/2) ... [2025-04-26 16:24:45,532 INFO L376 chiAutomizerObserver]: Analyzing ICFG barrier-7t.c.bpl [2025-04-26 16:24:45,605 INFO L143 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2025-04-26 16:24:45,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 93 transitions, 235 flow [2025-04-26 16:24:45,671 INFO L116 PetriNetUnfolderBase]: 14/79 cut-off events. [2025-04-26 16:24:45,675 INFO L117 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-04-26 16:24:45,681 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 16:24:45,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 93 transitions, 235 flow [2025-04-26 16:24:45,691 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 79 transitions, 200 flow [2025-04-26 16:24:45,692 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 87 places, 79 transitions, 200 flow [2025-04-26 16:24:45,703 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:24:45,703 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:24:45,703 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:24:45,703 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:24:45,703 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:24:45,703 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:24:45,704 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:24:45,704 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:24:45,706 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states