/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-6t.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:57:07,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:57:07,467 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:57:07,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:57:07,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:57:07,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:57:07,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:57:07,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:57:07,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:57:07,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:57:07,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:57:07,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:57:07,489 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:57:07,489 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:57:07,489 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:57:07,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:57:07,490 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:57:07,491 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:57:07,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:57:07,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:57:07,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:57:07,491 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:57:07,491 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:57:07,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:57:07,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:57:07,491 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:57:07,491 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:57:07,491 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:57:07,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:57:07,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:57:07,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:57:07,734 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:57:07,735 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:57:07,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/barrier-6t.c.bpl [2025-04-26 16:57:07,736 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/barrier-6t.c.bpl' [2025-04-26 16:57:07,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:57:07,757 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:57:07,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:57:07,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:57:07,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:57:07,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/1) ... [2025-04-26 16:57:07,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/1) ... [2025-04-26 16:57:07,794 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:57:07,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:57:07,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:57:07,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:57:07,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:57:07,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/1) ... [2025-04-26 16:57:07,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/1) ... [2025-04-26 16:57:07,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/1) ... [2025-04-26 16:57:07,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/1) ... [2025-04-26 16:57:07,804 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/1) ... [2025-04-26 16:57:07,805 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/1) ... [2025-04-26 16:57:07,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/1) ... [2025-04-26 16:57:07,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/1) ... [2025-04-26 16:57:07,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/1) ... [2025-04-26 16:57:07,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:57:07,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:57:07,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:57:07,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:57:07,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/1) ... [2025-04-26 16:57:07,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:57:07,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:07,848 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 16:57:07,849 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 16:57:07,867 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:57:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:57:07,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:57:07,867 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:57:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:57:07,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:57:07,867 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:57:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:57:07,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:57:07,867 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:57:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:57:07,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:57:07,867 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 16:57:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 16:57:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 16:57:07,868 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-04-26 16:57:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-26 16:57:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-26 16:57:07,868 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-04-26 16:57:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-26 16:57:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-26 16:57:07,868 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 16:57:07,903 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:57:07,904 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:57:08,019 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:57:08,019 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:57:08,030 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:57:08,030 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:57:08,031 INFO L201 PluginConnector]: Adding new model barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:57:08 BoogieIcfgContainer [2025-04-26 16:57:08,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:57:08,031 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:57:08,032 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:57:08,037 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:57:08,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:57:08,038 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:07" (1/2) ... [2025-04-26 16:57:08,039 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6123587 and model type barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:57:08, skipping insertion in model container [2025-04-26 16:57:08,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:57:08,039 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "barrier-6t.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:57:08" (2/2) ... [2025-04-26 16:57:08,040 INFO L376 chiAutomizerObserver]: Analyzing ICFG barrier-6t.c.bpl [2025-04-26 16:57:08,123 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-04-26 16:57:08,158 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:57:08,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:57:08,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:08,161 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 16:57:08,171 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 16:57:08,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 80 transitions, 202 flow [2025-04-26 16:57:08,241 INFO L116 PetriNetUnfolderBase]: 12/68 cut-off events. [2025-04-26 16:57:08,245 INFO L117 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-04-26 16:57:08,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 68 events. 12/68 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 204 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2025-04-26 16:57:08,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 80 transitions, 202 flow [2025-04-26 16:57:08,254 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 68 transitions, 172 flow [2025-04-26 16:57:08,255 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 75 places, 68 transitions, 172 flow [2025-04-26 16:57:08,259 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 16:57:35,749 WARN L140 AmpleReduction]: Number of pruned transitions: 993502 [2025-04-26 16:57:35,749 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 16:57:35,749 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 109357 [2025-04-26 16:57:35,749 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:2055 [2025-04-26 16:57:35,749 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:188690 [2025-04-26 16:57:35,749 WARN L145 AmpleReduction]: Times succ was already a loop node:356398 [2025-04-26 16:57:35,749 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:50874 [2025-04-26 16:57:35,749 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 16:57:36,721 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 300103 states, 300102 states have (on average 3.3568320104497804) internal successors, (in total 1007392), 300102 states have internal predecessors, (1007392), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:57:36,727 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:57:36,728 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:57:36,728 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:57:36,728 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:57:36,728 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:57:36,728 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:57:36,728 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:57:36,728 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:57:37,255 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 300103 states, 300102 states have (on average 3.3568320104497804) internal successors, (in total 1007392), 300102 states have internal predecessors, (1007392), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:57:42,953 INFO L131 ngComponentsAnalysis]: Automaton has 33368 accepting balls. 220680 [2025-04-26 16:57:42,953 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:57:42,953 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:57:42,971 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:57:42,972 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:57:42,972 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:57:43,443 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 300103 states, 300102 states have (on average 3.3568320104497804) internal successors, (in total 1007392), 300102 states have internal predecessors, (1007392), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:57:47,780 INFO L131 ngComponentsAnalysis]: Automaton has 33368 accepting balls. 220680 [2025-04-26 16:57:47,781 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:57:47,781 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:57:47,795 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:57:47,795 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:57:47,798 INFO L752 eck$LassoCheckResult]: Stem: "[143] $Ultimate##0-->L14: Formula: (= v_x2_10 0) InVars {} OutVars{x2=v_x2_10} AuxVars[] AssignedVars[x2]" "[234] L14-->L31: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:57:47,799 INFO L754 eck$LassoCheckResult]: Loop: "[179] L31-->L33: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[181] L33-->L31: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" [2025-04-26 16:57:47,802 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:47,802 INFO L85 PathProgramCache]: Analyzing trace with hash 5628, now seen corresponding path program 1 times [2025-04-26 16:57:47,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:47,806 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363292836] [2025-04-26 16:57:47,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:47,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:47,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:57:47,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:57:47,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:47,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:47,851 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:47,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:57:47,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:57:47,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:47,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:48,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:48,085 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:48,085 INFO L85 PathProgramCache]: Analyzing trace with hash 6691, now seen corresponding path program 1 times [2025-04-26 16:57:48,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:48,085 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221827084] [2025-04-26 16:57:48,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:48,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:48,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:57:48,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:57:48,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:48,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:48,095 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:48,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:57:48,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:57:48,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:48,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:48,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:48,106 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:48,106 INFO L85 PathProgramCache]: Analyzing trace with hash 5414238, now seen corresponding path program 1 times [2025-04-26 16:57:48,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:57:48,106 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025197096] [2025-04-26 16:57:48,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:57:48,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:57:48,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:57:48,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:57:48,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:48,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:48,114 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:57:48,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:57:48,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:57:48,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:48,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:57:48,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:57:48,189 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:48,193 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:48,193 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:48,193 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:48,193 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:57:48,193 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:48,193 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:48,193 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:48,193 INFO L132 ssoRankerPreferences]: Filename of dumped script: barrier-6t.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:57:48,193 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:48,194 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:48,202 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:48,233 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:48,234 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:57:48,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:48,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:48,237 INFO L229 MonitoredProcess]: Starting monitored process 3 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 16:57:48,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:57:48,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:57:48,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:48,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-04-26 16:57:48,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:48,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:48,295 INFO L229 MonitoredProcess]: Starting monitored process 4 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 16:57:48,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:57:48,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:57:48,297 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:57:48,434 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:57:48,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 16:57:48,443 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:57:48,444 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:57:48,444 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:57:48,444 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:57:48,444 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:57:48,444 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:48,444 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:57:48,444 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:57:48,444 INFO L132 ssoRankerPreferences]: Filename of dumped script: barrier-6t.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:57:48,444 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:57:48,444 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:57:48,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:57:48,469 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:57:48,471 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:57:48,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:48,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:48,479 INFO L229 MonitoredProcess]: Starting monitored process 5 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 16:57:48,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:57:48,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:57:48,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:57:48,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:57:48,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:57:48,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:57:48,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:57:48,514 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:57:48,514 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:57:48,516 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:57:48,524 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:57:48,524 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:57:48,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:57:48,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:48,531 INFO L229 MonitoredProcess]: Starting monitored process 6 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 16:57:48,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:57:48,533 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:57:48,535 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:57:48,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 16:57:48,537 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:57:48,537 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:57:48,538 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x1) = 1*z - 1*x1 Supporting invariants [] [2025-04-26 16:57:48,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-04-26 16:57:48,546 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:57:48,565 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:57:48,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:57:48,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:57:48,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:48,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:48,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:57:48,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:48,598 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:57:48,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:57:48,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:57:48,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:57:48,602 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:57:48,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:57:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:57:48,652 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:57:49,143 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 300103 states, 300102 states have (on average 3.3568320104497804) internal successors, (in total 1007392), 300102 states have internal predecessors, (1007392), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:58:02,348 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 300103 states, 300102 states have (on average 3.3568320104497804) internal successors, (in total 1007392), 300102 states have internal predecessors, (1007392), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 921092 states and 3246965 transitions. Complement of second has 7 states. [2025-04-26 16:58:02,349 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:58:02,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:58:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2025-04-26 16:58:02,359 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:58:02,360 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:58:02,360 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:58:02,361 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:58:02,361 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:58:02,361 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:58:02,361 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 921092 states and 3246965 transitions.