/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/indep_loops_9.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:57:22,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:57:22,813 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:57:22,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:57:22,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:57:22,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:57:22,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:57:22,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:57:22,843 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:57:22,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:57:22,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:57:22,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:57:22,844 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:57:22,844 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:57:22,844 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:57:22,844 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:57:22,844 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:57:22,845 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:57:22,845 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:57:22,845 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:57:22,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:57:22,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:57:22,845 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:57:22,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:57:22,845 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:57:22,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:57:22,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:57:22,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:57:22,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:57:22,845 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:57:22,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:57:22,846 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:57:22,846 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:57:22,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:57:22,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:57:22,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:57:22,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:57:22,846 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:57:22,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:57:22,846 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:57:22,846 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:57:22,846 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:57:22,846 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:57:23,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:57:23,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:57:23,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:57:23,068 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:57:23,069 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:57:23,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/indep_loops_9.c.bpl [2025-04-26 16:57:23,070 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/indep_loops_9.c.bpl' [2025-04-26 16:57:23,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:57:23,095 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:57:23,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:57:23,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:57:23,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:57:23,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/1) ... [2025-04-26 16:57:23,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/1) ... [2025-04-26 16:57:23,131 INFO L138 Inliner]: procedures = 10, calls = 9, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:57:23,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:57:23,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:57:23,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:57:23,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:57:23,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/1) ... [2025-04-26 16:57:23,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/1) ... [2025-04-26 16:57:23,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/1) ... [2025-04-26 16:57:23,140 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/1) ... [2025-04-26 16:57:23,141 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/1) ... [2025-04-26 16:57:23,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/1) ... [2025-04-26 16:57:23,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/1) ... [2025-04-26 16:57:23,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/1) ... [2025-04-26 16:57:23,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/1) ... [2025-04-26 16:57:23,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:57:23,159 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:57:23,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:57:23,159 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:57:23,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/1) ... [2025-04-26 16:57:23,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:57:23,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:23,179 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 16:57:23,184 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 16:57:23,200 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:57:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:57:23,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:57:23,201 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:57:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:57:23,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:57:23,201 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:57:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:57:23,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:57:23,201 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:57:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:57:23,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:57:23,201 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 16:57:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 16:57:23,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 16:57:23,201 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-04-26 16:57:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-26 16:57:23,202 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-26 16:57:23,202 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-04-26 16:57:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-26 16:57:23,202 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-26 16:57:23,202 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2025-04-26 16:57:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2025-04-26 16:57:23,202 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2025-04-26 16:57:23,202 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2025-04-26 16:57:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2025-04-26 16:57:23,202 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2025-04-26 16:57:23,202 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread9 given in one single declaration [2025-04-26 16:57:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure thread9 [2025-04-26 16:57:23,202 INFO L138 BoogieDeclarations]: Found implementation of procedure thread9 [2025-04-26 16:57:23,203 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 16:57:23,239 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:57:23,241 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:57:23,328 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:57:23,329 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:57:23,336 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:57:23,336 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:57:23,337 INFO L201 PluginConnector]: Adding new model indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:57:23 BoogieIcfgContainer [2025-04-26 16:57:23,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:57:23,339 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:57:23,339 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:57:23,343 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:57:23,343 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:57:23,343 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:57:23" (1/2) ... [2025-04-26 16:57:23,345 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d82a746 and model type indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:57:23, skipping insertion in model container [2025-04-26 16:57:23,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:57:23,345 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_9.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:57:23" (2/2) ... [2025-04-26 16:57:23,346 INFO L376 chiAutomizerObserver]: Analyzing ICFG indep_loops_9.c.bpl [2025-04-26 16:57:23,418 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2025-04-26 16:57:23,459 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:57:23,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:57:23,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:57:23,462 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 16:57:23,462 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 16:57:23,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 73 transitions, 209 flow [2025-04-26 16:57:23,547 INFO L116 PetriNetUnfolderBase]: 9/55 cut-off events. [2025-04-26 16:57:23,549 INFO L117 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-04-26 16:57:23,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 55 events. 9/55 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 110 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2025-04-26 16:57:23,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 73 transitions, 209 flow [2025-04-26 16:57:23,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 55 transitions, 164 flow [2025-04-26 16:57:23,556 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 74 places, 55 transitions, 164 flow [2025-04-26 16:57:23,561 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 16:58:20,641 WARN L140 AmpleReduction]: Number of pruned transitions: 1612347 [2025-04-26 16:58:20,641 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 16:58:20,641 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 217677 [2025-04-26 16:58:20,642 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:46 [2025-04-26 16:58:20,642 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:219183 [2025-04-26 16:58:20,642 WARN L145 AmpleReduction]: Times succ was already a loop node:924786 [2025-04-26 16:58:20,642 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:194384 [2025-04-26 16:58:20,642 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 16:58:22,313 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 436907 states, 436906 states have (on average 5.176307947247234) internal successors, (in total 2261560), 436906 states have internal predecessors, (2261560), 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 16:58:22,323 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:58:22,323 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:58:22,323 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:58:22,323 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:58:22,323 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:58:22,323 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:58:22,323 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:58:22,324 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:58:23,239 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 436907 states, 436906 states have (on average 5.176307947247234) internal successors, (in total 2261560), 436906 states have internal predecessors, (2261560), 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 16:58:37,413 INFO L131 ngComponentsAnalysis]: Automaton has 37831 accepting balls. 435372 [2025-04-26 16:58:37,414 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:58:37,414 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:58:37,435 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-04-26 16:58:37,435 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:58:37,435 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:58:38,321 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 436907 states, 436906 states have (on average 5.176307947247234) internal successors, (in total 2261560), 436906 states have internal predecessors, (2261560), 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 16:58:48,305 INFO L131 ngComponentsAnalysis]: Automaton has 37831 accepting balls. 435372 [2025-04-26 16:58:48,305 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:58:48,305 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:58:48,323 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-04-26 16:58:48,323 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:58:48,328 INFO L752 eck$LassoCheckResult]: Stem: "[175] $Ultimate##0-->L40: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:58:48,328 INFO L754 eck$LassoCheckResult]: Loop: "[138] L40-->L42: 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[]" "[140] L42-->L40: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" [2025-04-26 16:58:48,332 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:58:48,332 INFO L85 PathProgramCache]: Analyzing trace with hash 206, now seen corresponding path program 1 times [2025-04-26 16:58:48,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:58:48,338 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598638774] [2025-04-26 16:58:48,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:58:48,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:58:48,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:58:48,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:58:48,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:58:48,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:58:48,387 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:58:48,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:58:48,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:58:48,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:58:48,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:58:48,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:58:48,411 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:58:48,411 INFO L85 PathProgramCache]: Analyzing trace with hash 5379, now seen corresponding path program 1 times [2025-04-26 16:58:48,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:58:48,411 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791480389] [2025-04-26 16:58:48,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:58:48,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:58:48,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:58:48,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:58:48,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:58:48,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:58:48,419 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:58:48,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:58:48,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:58:48,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:58:48,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:58:48,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:58:48,429 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:58:48,429 INFO L85 PathProgramCache]: Analyzing trace with hash 202384, now seen corresponding path program 1 times [2025-04-26 16:58:48,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:58:48,429 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133807682] [2025-04-26 16:58:48,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:58:48,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:58:48,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:58:48,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:58:48,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:58:48,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:58:48,437 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:58:48,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:58:48,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:58:48,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:58:48,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:58:48,445 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:58:48,485 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:58:48,486 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:58:48,486 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:58:48,486 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:58:48,486 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:58:48,486 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:58:48,486 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:58:48,486 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:58:48,486 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_9.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:58:48,486 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:58:48,486 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:58:48,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:58:48,530 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:58:48,530 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:58:48,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:58:48,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:58:48,535 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 16:58:48,536 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 16:58:48,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:58:48,539 INFO L160 nArgumentSynthesizer]: Using integer mode.