/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/2_thr/adfg_2_x_indep.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 18:41:58,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 18:41:58,834 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 18:41:58,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 18:41:58,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 18:41:58,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 18:41:58,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 18:41:58,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 18:41:58,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 18:41:58,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 18:41:58,863 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 18:41:58,863 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 18:41:58,863 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 18:41:58,864 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 18:41:58,865 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 18:41:58,865 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 18:41:58,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 18:41:58,866 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 18:41:58,866 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 18:41:58,866 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 18:41:58,866 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 18:41:58,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:41:58,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 18:41:58,866 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 18:41:58,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 18:41:58,866 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 18:41:58,866 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 18:41:58,866 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 18:41:58,867 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 18:41:59,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 18:41:59,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 18:41:59,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 18:41:59,075 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 18:41:59,076 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 18:41:59,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/adfg_2_x_indep.c.bpl [2025-04-26 18:41:59,077 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/adfg_2_x_indep.c.bpl' [2025-04-26 18:41:59,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 18:41:59,091 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 18:41:59,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 18:41:59,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 18:41:59,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 18:41:59,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/1) ... [2025-04-26 18:41:59,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/1) ... [2025-04-26 18:41:59,125 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 18:41:59,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 18:41:59,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 18:41:59,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 18:41:59,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 18:41:59,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/1) ... [2025-04-26 18:41:59,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/1) ... [2025-04-26 18:41:59,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/1) ... [2025-04-26 18:41:59,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/1) ... [2025-04-26 18:41:59,136 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/1) ... [2025-04-26 18:41:59,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/1) ... [2025-04-26 18:41:59,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/1) ... [2025-04-26 18:41:59,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/1) ... [2025-04-26 18:41:59,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/1) ... [2025-04-26 18:41:59,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 18:41:59,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 18:41:59,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 18:41:59,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 18:41:59,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/1) ... [2025-04-26 18:41:59,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:41:59,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:59,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:59,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-26 18:41:59,245 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 18:41:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 18:41:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 18:41:59,246 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 18:41:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 18:41:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 18:41:59,246 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 18:41:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 18:41:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 18:41:59,246 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 18:41:59,283 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 18:41:59,284 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 18:41:59,349 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 18:41:59,349 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 18:41:59,357 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 18:41:59,357 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 18:41:59,358 INFO L201 PluginConnector]: Adding new model adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:41:59 BoogieIcfgContainer [2025-04-26 18:41:59,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 18:41:59,358 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 18:41:59,358 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 18:41:59,362 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 18:41:59,363 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:41:59,363 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:41:59" (1/2) ... [2025-04-26 18:41:59,364 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f5b691f and model type adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 06:41:59, skipping insertion in model container [2025-04-26 18:41:59,364 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:41:59,364 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:41:59" (2/2) ... [2025-04-26 18:41:59,365 INFO L376 chiAutomizerObserver]: Analyzing ICFG adfg_2_x_indep.c.bpl [2025-04-26 18:41:59,412 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 18:41:59,456 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 18:41:59,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 18:41:59,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:59,459 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-26 18:41:59,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-26 18:41:59,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 31 transitions, 76 flow [2025-04-26 18:41:59,526 INFO L116 PetriNetUnfolderBase]: 6/27 cut-off events. [2025-04-26 18:41:59,529 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 18:41:59,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 27 events. 6/27 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 25. Up to 4 conditions per place. [2025-04-26 18:41:59,533 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 31 transitions, 76 flow [2025-04-26 18:41:59,536 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 27 transitions, 66 flow [2025-04-26 18:41:59,537 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 28 places, 27 transitions, 66 flow [2025-04-26 18:41:59,537 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 27 transitions, 66 flow [2025-04-26 18:41:59,551 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 102 states, 101 states have (on average 2.386138613861386) internal successors, (in total 241), 101 states have internal predecessors, (241), 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 18:41:59,552 INFO L171 actionProvider$Eager]: Constructed initial Büchi automaton abstraction (from Petri net) that has 102 states, 101 states have (on average 2.386138613861386) internal successors, (in total 241), 101 states have internal predecessors, (241), 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 18:41:59,554 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 18:41:59,636 WARN L140 AmpleReduction]: Number of pruned transitions: 48 [2025-04-26 18:41:59,636 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 18:41:59,636 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 19 [2025-04-26 18:41:59,636 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:23 [2025-04-26 18:41:59,636 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:42 [2025-04-26 18:41:59,637 WARN L145 AmpleReduction]: Times succ was already a loop node:9 [2025-04-26 18:41:59,637 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:28 [2025-04-26 18:41:59,637 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 18:41:59,637 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 85 states, 84 states have (on average 1.75) internal successors, (in total 147), 84 states have internal predecessors, (147), 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 18:41:59,643 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 18:41:59,643 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 18:41:59,643 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 18:41:59,643 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 18:41:59,643 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 18:41:59,643 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 18:41:59,643 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 18:41:59,644 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 18:41:59,645 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 85 states, 84 states have (on average 1.75) internal successors, (in total 147), 84 states have internal predecessors, (147), 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 18:41:59,655 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 56 [2025-04-26 18:41:59,655 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:41:59,655 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:41:59,658 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 18:41:59,659 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:41:59,659 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 18:41:59,659 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 85 states, 84 states have (on average 1.75) internal successors, (in total 147), 84 states have internal predecessors, (147), 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 18:41:59,661 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 56 [2025-04-26 18:41:59,661 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:41:59,661 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:41:59,662 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 18:41:59,662 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:41:59,665 INFO L752 eck$LassoCheckResult]: Stem: "[100] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[76] $Ultimate##0-->L24: Formula: (<= 1 v_b_2) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" "[78] L24-->L32-2: Formula: (= v_t_2 1) InVars {} OutVars{t=v_t_2} AuxVars[] AssignedVars[t]" [2025-04-26 18:41:59,666 INFO L754 eck$LassoCheckResult]: Loop: "[81] L32-2-->L32: Formula: (<= v_x1_4 v_n_2) InVars {x1=v_x1_4, n=v_n_2} OutVars{x1=v_x1_4, n=v_n_2} AuxVars[] AssignedVars[]" "[83] L32-->L34: Formula: (<= 1 v_b_4) InVars {b=v_b_4} OutVars{b=v_b_4} AuxVars[] AssignedVars[]" "[85] L34-->L32-2: Formula: (= v_x1_5 (+ v_x1_6 v_t_4)) InVars {x1=v_x1_6, t=v_t_4} OutVars{x1=v_x1_5, t=v_t_4} AuxVars[] AssignedVars[x1]" [2025-04-26 18:41:59,669 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:41:59,669 INFO L85 PathProgramCache]: Analyzing trace with hash 128325, now seen corresponding path program 1 times [2025-04-26 18:41:59,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:41:59,674 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047836837] [2025-04-26 18:41:59,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:41:59,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:41:59,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:41:59,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:41:59,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:59,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:59,718 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:41:59,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:41:59,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:41:59,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:59,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:59,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:41:59,734 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:41:59,734 INFO L85 PathProgramCache]: Analyzing trace with hash 110290, now seen corresponding path program 1 times [2025-04-26 18:41:59,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:41:59,734 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601262960] [2025-04-26 18:41:59,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:41:59,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:41:59,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:41:59,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:41:59,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:59,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:59,744 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:41:59,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:41:59,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:41:59,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:59,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:59,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:41:59,752 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:41:59,752 INFO L85 PathProgramCache]: Analyzing trace with hash -471956722, now seen corresponding path program 1 times [2025-04-26 18:41:59,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:41:59,752 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462528255] [2025-04-26 18:41:59,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:41:59,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:41:59,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:41:59,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:41:59,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:59,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:59,761 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:41:59,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:41:59,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:41:59,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:41:59,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:41:59,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:41:59,895 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:41:59,895 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:41:59,896 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:41:59,896 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:41:59,896 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:41:59,896 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:59,896 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:41:59,896 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:41:59,896 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_indep.c.bpl_petrified1_Iteration1_Lasso [2025-04-26 18:41:59,896 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:41:59,896 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:41:59,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:41:59,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:41:59,938 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:41:59,987 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:41:59,988 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:41:59,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:41:59,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:41:59,992 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 18:41:59,993 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 18:41:59,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:41:59,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:00,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:00,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:00,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:00,019 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 18:42:00,020 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 18:42:00,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:42:00,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:00,165 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:42:00,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-04-26 18:42:00,172 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:00,172 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:00,172 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:00,172 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:00,172 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:42:00,172 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:00,172 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:00,172 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:00,172 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_indep.c.bpl_petrified1_Iteration1_Lasso [2025-04-26 18:42:00,172 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:00,172 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:00,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:00,177 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:00,180 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:00,228 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:00,232 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:42:00,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:00,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:00,238 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 18:42:00,240 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 18:42:00,244 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 18:42:00,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:00,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:00,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:00,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:00,273 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:00,274 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:00,278 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:42:00,284 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 18:42:00,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:00,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:00,287 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 18:42:00,288 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 18:42:00,293 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 18:42:00,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:00,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:00,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:00,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:00,307 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:00,307 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:00,313 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:42:00,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:00,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:00,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:00,321 INFO L229 MonitoredProcess]: Starting monitored process 7 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 18:42:00,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 18:42:00,323 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 18:42:00,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:00,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:00,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:00,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:00,336 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:00,336 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:00,342 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:42:00,347 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 18:42:00,347 INFO L437 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 18:42:00,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:00,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:00,474 INFO L229 MonitoredProcess]: Starting monitored process 8 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 18:42:00,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 18:42:00,477 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:42:00,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 18:42:00,493 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 18:42:00,494 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:42:00,494 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(t, x1, n) = 1*t - 2*x1 + 2*n Supporting invariants [1*t - 1 >= 0] [2025-04-26 18:42:00,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 18:42:00,506 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 18:42:00,539 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:00,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:00,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:00,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:00,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:00,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 18:42:00,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:00,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:00,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:00,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:00,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:00,563 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 18:42:00,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:00,601 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 18:42:00,614 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 18:42:00,616 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 85 states, 84 states have (on average 1.75) internal successors, (in total 147), 84 states have internal predecessors, (147), 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 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 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 18:42:00,756 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 85 states, 84 states have (on average 1.75) internal successors, (in total 147), 84 states have internal predecessors, (147), 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 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 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 297 states and 517 transitions. Complement of second has 8 states. [2025-04-26 18:42:00,758 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2025-04-26 18:42:00,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 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 18:42:00,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 61 transitions. [2025-04-26 18:42:00,769 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 3 letters. Loop has 3 letters. [2025-04-26 18:42:00,770 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:00,770 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 6 letters. Loop has 3 letters. [2025-04-26 18:42:00,770 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:00,770 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 61 transitions. Stem has 3 letters. Loop has 6 letters. [2025-04-26 18:42:00,770 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:00,771 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 297 states and 517 transitions. [2025-04-26 18:42:00,778 INFO L131 ngComponentsAnalysis]: Automaton has 23 accepting balls. 116 [2025-04-26 18:42:00,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 297 states to 227 states and 392 transitions. [2025-04-26 18:42:00,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2025-04-26 18:42:00,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 196 [2025-04-26 18:42:00,788 INFO L74 IsDeterministic]: Start isDeterministic. Operand 227 states and 392 transitions. [2025-04-26 18:42:00,788 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:42:00,788 INFO L218 hiAutomatonCegarLoop]: Abstraction has 227 states and 392 transitions. [2025-04-26 18:42:00,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states and 392 transitions. [2025-04-26 18:42:00,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 132. [2025-04-26 18:42:00,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 132 states have (on average 1.8257575757575757) internal successors, (in total 241), 131 states have internal predecessors, (241), 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 18:42:00,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 241 transitions. [2025-04-26 18:42:00,815 INFO L240 hiAutomatonCegarLoop]: Abstraction has 132 states and 241 transitions. [2025-04-26 18:42:00,815 INFO L438 stractBuchiCegarLoop]: Abstraction has 132 states and 241 transitions. [2025-04-26 18:42:00,815 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 18:42:00,815 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states and 241 transitions. [2025-04-26 18:42:00,817 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 56 [2025-04-26 18:42:00,817 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:42:00,818 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:42:00,818 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 18:42:00,818 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:42:00,818 INFO L752 eck$LassoCheckResult]: Stem: "[100] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[77] $Ultimate##0-->L28: Formula: (< v_b_3 1) InVars {b=v_b_3} OutVars{b=v_b_3} AuxVars[] AssignedVars[]" "[79] L28-->L32-2: Formula: (= (+ v_t_3 1) 0) InVars {} OutVars{t=v_t_3} AuxVars[] AssignedVars[t]" [2025-04-26 18:42:00,818 INFO L754 eck$LassoCheckResult]: Loop: "[81] L32-2-->L32: Formula: (<= v_x1_4 v_n_2) InVars {x1=v_x1_4, n=v_n_2} OutVars{x1=v_x1_4, n=v_n_2} AuxVars[] AssignedVars[]" "[84] L32-->L38: Formula: (< v_b_1 1) InVars {b=v_b_1} OutVars{b=v_b_1} AuxVars[] AssignedVars[]" "[86] L38-->L32-2: Formula: (= v_x1_2 (+ v_x1_1 v_t_1)) InVars {x1=v_x1_2, t=v_t_1} OutVars{x1=v_x1_1, t=v_t_1} AuxVars[] AssignedVars[x1]" [2025-04-26 18:42:00,822 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:00,822 INFO L85 PathProgramCache]: Analyzing trace with hash 128357, now seen corresponding path program 1 times [2025-04-26 18:42:00,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:00,822 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832222305] [2025-04-26 18:42:00,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:00,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:00,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:00,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:00,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:00,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:00,825 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:00,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:00,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:00,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:00,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:00,830 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:00,831 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:00,831 INFO L85 PathProgramCache]: Analyzing trace with hash 110322, now seen corresponding path program 1 times [2025-04-26 18:42:00,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:00,831 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206560471] [2025-04-26 18:42:00,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:00,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:00,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:00,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:00,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:00,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:00,837 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:00,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:00,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:00,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:00,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:00,841 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:00,841 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:00,841 INFO L85 PathProgramCache]: Analyzing trace with hash -471003378, now seen corresponding path program 1 times [2025-04-26 18:42:00,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:00,841 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942266423] [2025-04-26 18:42:00,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:00,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:00,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:42:00,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:42:00,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:00,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:00,848 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:00,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:42:00,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:42:00,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:00,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:00,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:00,887 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:00,887 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:00,887 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:00,887 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:00,887 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:42:00,887 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:00,887 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:00,887 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:00,888 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_indep.c.bpl_petrified1_Iteration2_Lasso [2025-04-26 18:42:00,888 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:00,888 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:00,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:00,891 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:00,895 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:00,929 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:00,929 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:42:00,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:00,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:00,931 INFO L229 MonitoredProcess]: Starting monitored process 9 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 18:42:00,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 18:42:00,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:00,933 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:00,944 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:42:00,944 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:42:00,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:00,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:00,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:00,952 INFO L229 MonitoredProcess]: Starting monitored process 10 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 18:42:00,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 18:42:00,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:00,957 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:00,974 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:42:00,975 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=0} Honda state: {b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:42:00,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:00,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:00,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:00,983 INFO L229 MonitoredProcess]: Starting monitored process 11 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 18:42:00,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 18:42:00,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:00,986 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:01,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 18:42:01,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:01,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:01,007 INFO L229 MonitoredProcess]: Starting monitored process 12 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 18:42:01,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 18:42:01,010 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:42:01,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:01,133 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:42:01,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 18:42:01,139 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:01,139 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:01,139 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:01,139 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:01,139 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:42:01,139 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:01,139 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:01,139 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:01,139 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_indep.c.bpl_petrified1_Iteration2_Lasso [2025-04-26 18:42:01,139 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:01,139 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:01,140 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:01,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:01,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:01,191 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:01,191 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:42:01,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:01,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:01,193 INFO L229 MonitoredProcess]: Starting monitored process 13 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 18:42:01,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 18:42:01,197 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 18:42:01,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:01,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:01,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:01,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:01,210 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:01,210 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:01,212 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:42:01,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-04-26 18:42:01,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:01,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:01,221 INFO L229 MonitoredProcess]: Starting monitored process 14 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 18:42:01,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-04-26 18:42:01,224 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 18:42:01,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:01,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:01,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:01,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:01,238 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:01,238 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:01,241 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:42:01,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:01,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:01,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:01,250 INFO L229 MonitoredProcess]: Starting monitored process 15 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 18:42:01,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-04-26 18:42:01,253 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 18:42:01,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:01,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:01,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:01,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:01,266 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:01,266 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:01,270 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:42:01,274 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 18:42:01,274 INFO L437 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 18:42:01,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:01,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:01,276 INFO L229 MonitoredProcess]: Starting monitored process 16 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 18:42:01,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-04-26 18:42:01,278 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:42:01,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:01,296 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 18:42:01,296 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:42:01,296 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(t, n, x1) = -1*t + 2*n - 2*x1 Supporting invariants [-1*t - 1 >= 0] [2025-04-26 18:42:01,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:01,309 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 18:42:01,334 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:01,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:01,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:01,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:01,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:01,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 18:42:01,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:01,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:01,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:01,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:01,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:01,351 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 18:42:01,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:01,381 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 18:42:01,382 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 18:42:01,382 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 132 states and 241 transitions. cyclomatic complexity: 126 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 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 18:42:01,481 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 132 states and 241 transitions. cyclomatic complexity: 126. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 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 318 states and 568 transitions. Complement of second has 8 states. [2025-04-26 18:42:01,481 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2025-04-26 18:42:01,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 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 18:42:01,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 55 transitions. [2025-04-26 18:42:01,482 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 3 letters. Loop has 3 letters. [2025-04-26 18:42:01,482 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:01,482 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 6 letters. Loop has 3 letters. [2025-04-26 18:42:01,482 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:01,482 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 55 transitions. Stem has 3 letters. Loop has 6 letters. [2025-04-26 18:42:01,482 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:01,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 568 transitions. [2025-04-26 18:42:01,488 INFO L131 ngComponentsAnalysis]: Automaton has 23 accepting balls. 116 [2025-04-26 18:42:01,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 282 states and 498 transitions. [2025-04-26 18:42:01,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2025-04-26 18:42:01,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 220 [2025-04-26 18:42:01,491 INFO L74 IsDeterministic]: Start isDeterministic. Operand 282 states and 498 transitions. [2025-04-26 18:42:01,491 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:42:01,491 INFO L218 hiAutomatonCegarLoop]: Abstraction has 282 states and 498 transitions. [2025-04-26 18:42:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states and 498 transitions. [2025-04-26 18:42:01,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 187. [2025-04-26 18:42:01,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 187 states have (on average 1.8556149732620322) internal successors, (in total 347), 186 states have internal predecessors, (347), 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 18:42:01,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 347 transitions. [2025-04-26 18:42:01,502 INFO L240 hiAutomatonCegarLoop]: Abstraction has 187 states and 347 transitions. [2025-04-26 18:42:01,502 INFO L438 stractBuchiCegarLoop]: Abstraction has 187 states and 347 transitions. [2025-04-26 18:42:01,502 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 18:42:01,502 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 187 states and 347 transitions. [2025-04-26 18:42:01,503 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 56 [2025-04-26 18:42:01,503 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:42:01,503 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:42:01,504 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 18:42:01,504 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:42:01,504 INFO L752 eck$LassoCheckResult]: Stem: "[100] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[76] $Ultimate##0-->L24: Formula: (<= 1 v_b_2) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" "[103] L13-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[87] $Ultimate##0-->L48: Formula: (<= 1 v_b_7) InVars {b=v_b_7} OutVars{b=v_b_7} AuxVars[] AssignedVars[]" "[89] L48-->L56-2: Formula: (= v_t_7 1) InVars {} OutVars{t=v_t_7} AuxVars[] AssignedVars[t]" [2025-04-26 18:42:01,504 INFO L754 eck$LassoCheckResult]: Loop: "[92] L56-2-->L56: Formula: (<= v_x2_1 v_n_3) InVars {x2=v_x2_1, n=v_n_3} OutVars{x2=v_x2_1, n=v_n_3} AuxVars[] AssignedVars[]" "[95] L56-->L62: Formula: (< v_b_6 1) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[97] L62-->L56-2: Formula: (= v_x2_5 (+ v_x2_4 v_t_6)) InVars {t=v_t_6, x2=v_x2_5} OutVars{t=v_t_6, x2=v_x2_4} AuxVars[] AssignedVars[x2]" [2025-04-26 18:42:01,504 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:01,504 INFO L85 PathProgramCache]: Analyzing trace with hash 123347136, now seen corresponding path program 1 times [2025-04-26 18:42:01,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:01,505 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863262953] [2025-04-26 18:42:01,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:01,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:01,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:01,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:01,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:01,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:01,508 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:01,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:01,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:01,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:01,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:01,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:01,511 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:01,511 INFO L85 PathProgramCache]: Analyzing trace with hash 121245, now seen corresponding path program 1 times [2025-04-26 18:42:01,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:01,511 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431797124] [2025-04-26 18:42:01,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:01,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:01,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:01,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:01,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:01,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:01,513 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:01,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:01,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:01,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:01,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:01,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:01,515 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:01,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1857385346, now seen corresponding path program 1 times [2025-04-26 18:42:01,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:01,515 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629978446] [2025-04-26 18:42:01,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:01,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:01,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:42:01,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:42:01,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:01,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:01,556 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 18:42:01,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:42:01,556 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629978446] [2025-04-26 18:42:01,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629978446] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:42:01,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:42:01,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-26 18:42:01,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835108589] [2025-04-26 18:42:01,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:42:01,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:42:01,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:42:01,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:42:01,592 INFO L87 Difference]: Start difference. First operand 187 states and 347 transitions. cyclomatic complexity: 183 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 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 18:42:01,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:42:01,609 INFO L93 Difference]: Finished difference Result 179 states and 291 transitions. [2025-04-26 18:42:01,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 179 states and 291 transitions. [2025-04-26 18:42:01,610 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 54 [2025-04-26 18:42:01,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 179 states to 157 states and 255 transitions. [2025-04-26 18:42:01,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 113 [2025-04-26 18:42:01,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2025-04-26 18:42:01,612 INFO L74 IsDeterministic]: Start isDeterministic. Operand 157 states and 255 transitions. [2025-04-26 18:42:01,612 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:42:01,612 INFO L218 hiAutomatonCegarLoop]: Abstraction has 157 states and 255 transitions. [2025-04-26 18:42:01,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states and 255 transitions. [2025-04-26 18:42:01,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 142. [2025-04-26 18:42:01,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 142 states have (on average 1.6408450704225352) internal successors, (in total 233), 141 states have internal predecessors, (233), 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 18:42:01,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 233 transitions. [2025-04-26 18:42:01,616 INFO L240 hiAutomatonCegarLoop]: Abstraction has 142 states and 233 transitions. [2025-04-26 18:42:01,616 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 18:42:01,617 INFO L438 stractBuchiCegarLoop]: Abstraction has 142 states and 233 transitions. [2025-04-26 18:42:01,617 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 18:42:01,617 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 233 transitions. [2025-04-26 18:42:01,618 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 54 [2025-04-26 18:42:01,618 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:42:01,618 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:42:01,618 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 18:42:01,618 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:42:01,618 INFO L752 eck$LassoCheckResult]: Stem: "[100] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[76] $Ultimate##0-->L24: Formula: (<= 1 v_b_2) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" "[103] L13-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[87] $Ultimate##0-->L48: Formula: (<= 1 v_b_7) InVars {b=v_b_7} OutVars{b=v_b_7} AuxVars[] AssignedVars[]" "[89] L48-->L56-2: Formula: (= v_t_7 1) InVars {} OutVars{t=v_t_7} AuxVars[] AssignedVars[t]" [2025-04-26 18:42:01,618 INFO L754 eck$LassoCheckResult]: Loop: "[92] L56-2-->L56: Formula: (<= v_x2_1 v_n_3) InVars {x2=v_x2_1, n=v_n_3} OutVars{x2=v_x2_1, n=v_n_3} AuxVars[] AssignedVars[]" "[94] L56-->L58: Formula: (<= 1 v_b_5) InVars {b=v_b_5} OutVars{b=v_b_5} AuxVars[] AssignedVars[]" "[96] L58-->L56-2: Formula: (= v_x2_2 (+ v_x2_3 v_t_5)) InVars {t=v_t_5, x2=v_x2_3} OutVars{t=v_t_5, x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-04-26 18:42:01,618 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:01,619 INFO L85 PathProgramCache]: Analyzing trace with hash 123347136, now seen corresponding path program 2 times [2025-04-26 18:42:01,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:01,619 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016764760] [2025-04-26 18:42:01,619 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 18:42:01,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:01,624 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:01,626 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:01,626 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 18:42:01,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:01,626 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:01,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:01,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:01,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:01,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:01,628 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:01,632 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:01,632 INFO L85 PathProgramCache]: Analyzing trace with hash 121213, now seen corresponding path program 1 times [2025-04-26 18:42:01,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:01,632 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875809798] [2025-04-26 18:42:01,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:01,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:01,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:01,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:01,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:01,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:01,636 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:01,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:01,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:01,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:01,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:01,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:01,645 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:01,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1857385378, now seen corresponding path program 1 times [2025-04-26 18:42:01,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:01,645 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137990026] [2025-04-26 18:42:01,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:01,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:01,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:42:01,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:42:01,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:01,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:01,649 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:01,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:42:01,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:42:01,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:01,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:01,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:01,691 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:01,691 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:01,691 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:01,691 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:01,691 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:42:01,691 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:01,691 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:01,691 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:01,691 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_indep.c.bpl_petrified1_Iteration4_Lasso [2025-04-26 18:42:01,691 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:01,691 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:01,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:01,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:01,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:01,703 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:01,705 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:01,749 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:01,749 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:42:01,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:01,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:01,752 INFO L229 MonitoredProcess]: Starting monitored process 17 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 18:42:01,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-04-26 18:42:01,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:01,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:01,764 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:42:01,764 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:42:01,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:01,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:01,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:01,772 INFO L229 MonitoredProcess]: Starting monitored process 18 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 18:42:01,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-04-26 18:42:01,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:01,775 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:01,793 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:42:01,793 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=1} Honda state: {b=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:42:01,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:01,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:01,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:01,800 INFO L229 MonitoredProcess]: Starting monitored process 19 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 18:42:01,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-04-26 18:42:01,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:01,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:01,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-04-26 18:42:01,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:01,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:01,822 INFO L229 MonitoredProcess]: Starting monitored process 20 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 18:42:01,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-04-26 18:42:01,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:42:01,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:01,977 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:42:01,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-04-26 18:42:01,984 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:01,984 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:01,984 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:01,984 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:01,984 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:42:01,984 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:01,984 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:01,984 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:01,984 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_indep.c.bpl_petrified1_Iteration4_Lasso [2025-04-26 18:42:01,984 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:01,984 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:01,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:01,988 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:01,990 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:01,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:01,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:02,038 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:02,038 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:42:02,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,041 INFO L229 MonitoredProcess]: Starting monitored process 21 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 18:42:02,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-04-26 18:42:02,044 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 18:42:02,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:02,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:02,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:02,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:02,059 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:02,060 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:02,064 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:42:02,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:02,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,075 INFO L229 MonitoredProcess]: Starting monitored process 22 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 18:42:02,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-04-26 18:42:02,078 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 18:42:02,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:02,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:02,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:02,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:02,089 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:02,089 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:02,092 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:42:02,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-04-26 18:42:02,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,099 INFO L229 MonitoredProcess]: Starting monitored process 23 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 18:42:02,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-04-26 18:42:02,102 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 18:42:02,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:02,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:02,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:02,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:02,114 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:02,114 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:02,118 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:42:02,122 INFO L436 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-04-26 18:42:02,122 INFO L437 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:42:02,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,124 INFO L229 MonitoredProcess]: Starting monitored process 24 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 18:42:02,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-04-26 18:42:02,128 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:42:02,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-04-26 18:42:02,145 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 18:42:02,145 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:42:02,145 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x2) = 2*n - 2*x2 + 1 Supporting invariants [1*t - 1 >= 0] [2025-04-26 18:42:02,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:02,153 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 18:42:02,172 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:02,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:02,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:02,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:02,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 18:42:02,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:02,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:02,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:02,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:02,190 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 18:42:02,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:02,213 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 18:42:02,214 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 18:42:02,214 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 233 transitions. cyclomatic complexity: 115 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 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 18:42:02,273 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 233 transitions. cyclomatic complexity: 115. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 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 259 states and 410 transitions. Complement of second has 7 states. [2025-04-26 18:42:02,273 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 18:42:02,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 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 18:42:02,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2025-04-26 18:42:02,274 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 18:42:02,274 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:02,274 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 8 letters. Loop has 3 letters. [2025-04-26 18:42:02,274 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:02,274 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 5 letters. Loop has 6 letters. [2025-04-26 18:42:02,274 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:02,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 259 states and 410 transitions. [2025-04-26 18:42:02,275 INFO L131 ngComponentsAnalysis]: Automaton has 26 accepting balls. 90 [2025-04-26 18:42:02,276 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 259 states to 168 states and 261 transitions. [2025-04-26 18:42:02,278 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2025-04-26 18:42:02,279 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 131 [2025-04-26 18:42:02,279 INFO L74 IsDeterministic]: Start isDeterministic. Operand 168 states and 261 transitions. [2025-04-26 18:42:02,279 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:42:02,279 INFO L218 hiAutomatonCegarLoop]: Abstraction has 168 states and 261 transitions. [2025-04-26 18:42:02,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states and 261 transitions. [2025-04-26 18:42:02,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 136. [2025-04-26 18:42:02,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 136 states have (on average 1.6029411764705883) internal successors, (in total 218), 135 states have internal predecessors, (218), 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 18:42:02,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 218 transitions. [2025-04-26 18:42:02,287 INFO L240 hiAutomatonCegarLoop]: Abstraction has 136 states and 218 transitions. [2025-04-26 18:42:02,287 INFO L438 stractBuchiCegarLoop]: Abstraction has 136 states and 218 transitions. [2025-04-26 18:42:02,287 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 18:42:02,287 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 218 transitions. [2025-04-26 18:42:02,288 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 60 [2025-04-26 18:42:02,288 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:42:02,288 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:42:02,288 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 18:42:02,288 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:42:02,288 INFO L752 eck$LassoCheckResult]: Stem: "[100] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[77] $Ultimate##0-->L28: Formula: (< v_b_3 1) InVars {b=v_b_3} OutVars{b=v_b_3} AuxVars[] AssignedVars[]" "[103] L13-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[88] $Ultimate##0-->L52: Formula: (< v_b_8 1) InVars {b=v_b_8} OutVars{b=v_b_8} AuxVars[] AssignedVars[]" "[90] L52-->L56-2: Formula: (= (+ v_t_8 1) 0) InVars {} OutVars{t=v_t_8} AuxVars[] AssignedVars[t]" [2025-04-26 18:42:02,288 INFO L754 eck$LassoCheckResult]: Loop: "[92] L56-2-->L56: Formula: (<= v_x2_1 v_n_3) InVars {x2=v_x2_1, n=v_n_3} OutVars{x2=v_x2_1, n=v_n_3} AuxVars[] AssignedVars[]" "[95] L56-->L62: Formula: (< v_b_6 1) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[97] L62-->L56-2: Formula: (= v_x2_5 (+ v_x2_4 v_t_6)) InVars {t=v_t_6, x2=v_x2_5} OutVars{t=v_t_6, x2=v_x2_4} AuxVars[] AssignedVars[x2]" [2025-04-26 18:42:02,288 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:02,289 INFO L85 PathProgramCache]: Analyzing trace with hash 123376959, now seen corresponding path program 1 times [2025-04-26 18:42:02,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:02,289 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152774702] [2025-04-26 18:42:02,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:02,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:02,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:02,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:02,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:02,295 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:02,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:02,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:02,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:02,302 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:02,302 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:02,302 INFO L85 PathProgramCache]: Analyzing trace with hash 121245, now seen corresponding path program 2 times [2025-04-26 18:42:02,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:02,303 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771064926] [2025-04-26 18:42:02,303 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 18:42:02,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:02,304 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:02,305 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:02,305 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 18:42:02,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:02,305 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:02,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:02,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:02,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:02,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:02,307 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:02,307 INFO L85 PathProgramCache]: Analyzing trace with hash -968928353, now seen corresponding path program 1 times [2025-04-26 18:42:02,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:02,307 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677801010] [2025-04-26 18:42:02,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:02,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:02,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:42:02,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:42:02,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:02,312 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:02,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 18:42:02,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 18:42:02,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:02,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:02,355 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:02,355 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:02,355 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:02,355 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:02,355 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:42:02,355 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,355 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:02,355 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:02,355 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_indep.c.bpl_petrified1_Iteration5_Lasso [2025-04-26 18:42:02,355 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:02,355 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:02,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:02,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:02,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:02,363 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:02,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:02,407 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:02,407 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:42:02,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,411 INFO L229 MonitoredProcess]: Starting monitored process 25 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 18:42:02,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-04-26 18:42:02,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:02,414 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:02,426 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:42:02,426 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:42:02,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:02,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,434 INFO L229 MonitoredProcess]: Starting monitored process 26 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 18:42:02,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-04-26 18:42:02,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:02,438 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:02,449 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:42:02,449 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar1=0} Honda state: {thread2Thread1of1ForFork1_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:42:02,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-04-26 18:42:02,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,457 INFO L229 MonitoredProcess]: Starting monitored process 27 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 18:42:02,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-04-26 18:42:02,459 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:02,459 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:02,469 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:42:02,470 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 18:42:02,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:02,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,476 INFO L229 MonitoredProcess]: Starting monitored process 28 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 18:42:02,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-04-26 18:42:02,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:42:02,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:02,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2025-04-26 18:42:02,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,495 INFO L229 MonitoredProcess]: Starting monitored process 29 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 18:42:02,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-04-26 18:42:02,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:42:02,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:42:02,607 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:42:02,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-04-26 18:42:02,613 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:42:02,613 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:42:02,613 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:42:02,613 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:42:02,613 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:42:02,613 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,613 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:42:02,613 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:42:02,613 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_indep.c.bpl_petrified1_Iteration5_Lasso [2025-04-26 18:42:02,613 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:42:02,613 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:42:02,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:02,616 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:02,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:02,619 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:02,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:42:02,665 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:42:02,666 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:42:02,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,668 INFO L229 MonitoredProcess]: Starting monitored process 30 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 18:42:02,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-04-26 18:42:02,671 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 18:42:02,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:02,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:02,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:02,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:02,683 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:02,683 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:02,685 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:42:02,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:02,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,693 INFO L229 MonitoredProcess]: Starting monitored process 31 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 18:42:02,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-04-26 18:42:02,705 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 18:42:02,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:02,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:02,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:02,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:02,718 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:02,718 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:02,720 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:42:02,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:02,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,728 INFO L229 MonitoredProcess]: Starting monitored process 32 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 18:42:02,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-04-26 18:42:02,730 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 18:42:02,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:02,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:02,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:02,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:02,742 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:02,742 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:02,744 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:42:02,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:02,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,752 INFO L229 MonitoredProcess]: Starting monitored process 33 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 18:42:02,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-04-26 18:42:02,755 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 18:42:02,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:02,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:02,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:02,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:02,766 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:02,766 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:02,768 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:42:02,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2025-04-26 18:42:02,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,775 INFO L229 MonitoredProcess]: Starting monitored process 34 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 18:42:02,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-04-26 18:42:02,777 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 18:42:02,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:42:02,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:42:02,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:42:02,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:42:02,789 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 18:42:02,789 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 18:42:02,793 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:42:02,796 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 18:42:02,797 INFO L437 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:42:02,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:42:02,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:42:02,798 INFO L229 MonitoredProcess]: Starting monitored process 35 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 18:42:02,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-04-26 18:42:02,801 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:42:02,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2025-04-26 18:42:02,818 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 18:42:02,818 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:42:02,818 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x2) = 2*n - 2*x2 + 1 Supporting invariants [-1*t - 1 >= 0] [2025-04-26 18:42:02,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2025-04-26 18:42:02,828 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 18:42:02,849 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:02,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:42:02,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:42:02,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:02,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 18:42:02,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:02,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:02,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:02,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:02,860 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 18:42:02,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:42:02,877 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 18:42:02,878 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 18:42:02,878 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 136 states and 218 transitions. cyclomatic complexity: 107 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 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 18:42:02,929 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 136 states and 218 transitions. cyclomatic complexity: 107. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 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 287 states and 464 transitions. Complement of second has 7 states. [2025-04-26 18:42:02,930 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 18:42:02,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 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 18:42:02,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2025-04-26 18:42:02,931 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 18:42:02,931 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:02,931 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 8 letters. Loop has 3 letters. [2025-04-26 18:42:02,932 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:02,932 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 5 letters. Loop has 6 letters. [2025-04-26 18:42:02,932 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:42:02,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 287 states and 464 transitions. [2025-04-26 18:42:02,933 INFO L131 ngComponentsAnalysis]: Automaton has 25 accepting balls. 87 [2025-04-26 18:42:02,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 287 states to 236 states and 366 transitions. [2025-04-26 18:42:02,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 142 [2025-04-26 18:42:02,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 158 [2025-04-26 18:42:02,935 INFO L74 IsDeterministic]: Start isDeterministic. Operand 236 states and 366 transitions. [2025-04-26 18:42:02,936 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:42:02,936 INFO L218 hiAutomatonCegarLoop]: Abstraction has 236 states and 366 transitions. [2025-04-26 18:42:02,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 366 transitions. [2025-04-26 18:42:02,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 172. [2025-04-26 18:42:02,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 172 states have (on average 1.6046511627906976) internal successors, (in total 276), 171 states have internal predecessors, (276), 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 18:42:02,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 276 transitions. [2025-04-26 18:42:02,943 INFO L240 hiAutomatonCegarLoop]: Abstraction has 172 states and 276 transitions. [2025-04-26 18:42:02,943 INFO L438 stractBuchiCegarLoop]: Abstraction has 172 states and 276 transitions. [2025-04-26 18:42:02,943 INFO L340 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-04-26 18:42:02,944 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 172 states and 276 transitions. [2025-04-26 18:42:02,944 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 48 [2025-04-26 18:42:02,944 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:42:02,944 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:42:02,944 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-04-26 18:42:02,944 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:42:02,945 INFO L752 eck$LassoCheckResult]: Stem: "[100] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[77] $Ultimate##0-->L28: Formula: (< v_b_3 1) InVars {b=v_b_3} OutVars{b=v_b_3} AuxVars[] AssignedVars[]" "[103] L13-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[88] $Ultimate##0-->L52: Formula: (< v_b_8 1) InVars {b=v_b_8} OutVars{b=v_b_8} AuxVars[] AssignedVars[]" "[79] L28-->L32-2: Formula: (= (+ v_t_3 1) 0) InVars {} OutVars{t=v_t_3} AuxVars[] AssignedVars[t]" "[81] L32-2-->L32: Formula: (<= v_x1_4 v_n_2) InVars {x1=v_x1_4, n=v_n_2} OutVars{x1=v_x1_4, n=v_n_2} AuxVars[] AssignedVars[]" [2025-04-26 18:42:02,946 INFO L754 eck$LassoCheckResult]: Loop: "[83] L32-->L34: Formula: (<= 1 v_b_4) InVars {b=v_b_4} OutVars{b=v_b_4} AuxVars[] AssignedVars[]" "[85] L34-->L32-2: Formula: (= v_x1_5 (+ v_x1_6 v_t_4)) InVars {x1=v_x1_6, t=v_t_4} OutVars{x1=v_x1_5, t=v_t_4} AuxVars[] AssignedVars[x1]" "[81] L32-2-->L32: Formula: (<= v_x1_4 v_n_2) InVars {x1=v_x1_4, n=v_n_2} OutVars{x1=v_x1_4, n=v_n_2} AuxVars[] AssignedVars[]" [2025-04-26 18:42:02,946 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:02,946 INFO L85 PathProgramCache]: Analyzing trace with hash -470281827, now seen corresponding path program 1 times [2025-04-26 18:42:02,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:02,946 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360348685] [2025-04-26 18:42:02,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:02,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:02,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:42:02,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:42:02,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:02,950 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:02,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:42:02,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:42:02,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:02,953 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:02,953 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:02,953 INFO L85 PathProgramCache]: Analyzing trace with hash 112270, now seen corresponding path program 2 times [2025-04-26 18:42:02,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:02,953 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542308057] [2025-04-26 18:42:02,953 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 18:42:02,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:02,955 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:02,956 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:02,956 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 18:42:02,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:02,956 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:42:02,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:42:02,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:42:02,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:42:02,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:42:02,959 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:42:02,959 INFO L85 PathProgramCache]: Analyzing trace with hash 17493874, now seen corresponding path program 1 times [2025-04-26 18:42:02,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:42:02,959 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671606075] [2025-04-26 18:42:02,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:42:02,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:42:02,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 18:42:02,962 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 18:42:02,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:42:02,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:42:02,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 18:42:02,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 18:42:02,977 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671606075] [2025-04-26 18:42:02,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671606075] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 18:42:02,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 18:42:02,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-26 18:42:02,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517270462] [2025-04-26 18:42:02,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 18:42:02,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 18:42:02,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 18:42:02,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 18:42:02,993 INFO L87 Difference]: Start difference. First operand 172 states and 276 transitions. cyclomatic complexity: 134 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (in total 9), 3 states have internal predecessors, (9), 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 18:42:03,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 18:42:03,001 INFO L93 Difference]: Finished difference Result 99 states and 151 transitions. [2025-04-26 18:42:03,001 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 151 transitions. [2025-04-26 18:42:03,002 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:42:03,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 0 states and 0 transitions. [2025-04-26 18:42:03,002 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 18:42:03,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 18:42:03,002 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 18:42:03,002 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 18:42:03,002 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:42:03,002 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:42:03,002 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 18:42:03,003 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 18:42:03,003 INFO L340 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-04-26 18:42:03,003 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 18:42:03,003 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 18:42:03,003 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 18:42:03,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-26 18:42:03,013 INFO L201 PluginConnector]: Adding new model adfg_2_x_indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 06:42:03 BoogieIcfgContainer [2025-04-26 18:42:03,013 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 18:42:03,014 INFO L158 Benchmark]: Toolchain (without parser) took 3922.48ms. Allocated memory was 155.2MB in the beginning and 125.8MB in the end (delta: -29.4MB). Free memory was 85.6MB in the beginning and 67.6MB in the end (delta: 18.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:42:03,014 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:42:03,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.85ms. Allocated memory is still 155.2MB. Free memory was 85.6MB in the beginning and 83.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:42:03,014 INFO L158 Benchmark]: Boogie Preprocessor took 22.12ms. Allocated memory is still 155.2MB. Free memory was 83.8MB in the beginning and 82.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:42:03,014 INFO L158 Benchmark]: RCFGBuilder took 208.63ms. Allocated memory is still 155.2MB. Free memory was 82.7MB in the beginning and 73.3MB in the end (delta: 9.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 18:42:03,015 INFO L158 Benchmark]: BuchiAutomizer took 3654.90ms. Allocated memory was 155.2MB in the beginning and 125.8MB in the end (delta: -29.4MB). Free memory was 73.1MB in the beginning and 67.6MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 18:42:03,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.85ms. Allocated memory is still 155.2MB. Free memory was 85.6MB in the beginning and 83.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 22.12ms. Allocated memory is still 155.2MB. Free memory was 83.8MB in the beginning and 82.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 208.63ms. Allocated memory is still 155.2MB. Free memory was 82.7MB in the beginning and 73.3MB in the end (delta: 9.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 3654.90ms. Allocated memory was 155.2MB in the beginning and 125.8MB in the end (delta: -29.4MB). Free memory was 73.1MB in the beginning and 67.6MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 301 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 208 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 208 mSDsluCounter, 231 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 180 IncrementalHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 165 mSDtfsCounter, 180 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq184 hnf95 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 1 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.1s InitialAbstraction: Time to compute Ample Reduction [ms]: 188, Number of transitions in reduction automaton: 147, Number of states in reduction automaton: 85, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * n + -2 * x1 + t and consists of 5 locations. One deterministic module has affine ranking function 2 * n + -1 * t + -2 * x1 and consists of 5 locations. One deterministic module has affine ranking function 2 * n + -2 * x2 + 1 and consists of 4 locations. One deterministic module has affine ranking function 2 * n + -2 * x2 + 1 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 18:42:03,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...