/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/Termination.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/pc6.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 18:44:14,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 18:44:14,455 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 18:44:14,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 18:44:14,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 18:44:14,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 18:44:14,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 18:44:14,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 18:44:14,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 18:44:14,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 18:44:14,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 18:44:14,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 18:44:14,483 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 18:44:14,483 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 18:44:14,483 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 18:44:14,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 18:44:14,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 18:44:14,485 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 18:44:14,485 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 18:44:14,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 18:44:14,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 18:44:14,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:44:14,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 18:44:14,485 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 18:44:14,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 18:44:14,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 18:44:14,485 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 18:44:14,485 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 18:44:14,485 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 18:44:14,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 18:44:14,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 18:44:14,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 18:44:14,712 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 18:44:14,713 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 18:44:14,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/pc6.c.bpl [2025-04-26 18:44:14,714 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/pc6.c.bpl' [2025-04-26 18:44:14,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 18:44:14,731 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 18:44:14,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 18:44:14,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 18:44:14,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 18:44:14,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/1) ... [2025-04-26 18:44:14,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/1) ... [2025-04-26 18:44:14,768 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 18:44:14,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 18:44:14,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 18:44:14,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 18:44:14,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 18:44:14,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/1) ... [2025-04-26 18:44:14,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/1) ... [2025-04-26 18:44:14,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/1) ... [2025-04-26 18:44:14,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/1) ... [2025-04-26 18:44:14,785 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/1) ... [2025-04-26 18:44:14,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/1) ... [2025-04-26 18:44:14,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/1) ... [2025-04-26 18:44:14,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/1) ... [2025-04-26 18:44:14,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/1) ... [2025-04-26 18:44:14,800 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 18:44:14,802 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 18:44:14,802 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 18:44:14,802 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 18:44:14,803 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/1) ... [2025-04-26 18:44:14,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 18:44:14,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:14,832 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 18:44:14,836 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 18:44:14,857 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 18:44:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 18:44:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 18:44:14,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 18:44:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 18:44:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 18:44:14,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 18:44:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 18:44:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 18:44:14,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 18:44:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 18:44:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 18:44:14,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 18:44:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 18:44:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 18:44:14,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-04-26 18:44:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-26 18:44:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-26 18:44:14,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-04-26 18:44:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-26 18:44:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-26 18:44:14,859 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 18:44:14,899 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 18:44:14,901 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 18:44:15,008 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 18:44:15,008 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 18:44:15,015 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 18:44:15,015 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 18:44:15,016 INFO L201 PluginConnector]: Adding new model pc6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:44:15 BoogieIcfgContainer [2025-04-26 18:44:15,016 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 18:44:15,017 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 18:44:15,017 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 18:44:15,021 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 18:44:15,021 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:44:15,021 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 06:44:14" (1/2) ... [2025-04-26 18:44:15,023 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65081e5d and model type pc6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 06:44:15, skipping insertion in model container [2025-04-26 18:44:15,024 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 18:44:15,024 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pc6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 06:44:15" (2/2) ... [2025-04-26 18:44:15,024 INFO L376 chiAutomizerObserver]: Analyzing ICFG pc6.c.bpl [2025-04-26 18:44:15,097 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-04-26 18:44:15,131 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 18:44:15,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 18:44:15,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:15,134 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 18:44:15,135 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 18:44:15,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 62 transitions, 166 flow [2025-04-26 18:44:15,208 INFO L116 PetriNetUnfolderBase]: 6/50 cut-off events. [2025-04-26 18:44:15,212 INFO L117 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-04-26 18:44:15,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 50 events. 6/50 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 126 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2025-04-26 18:44:15,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 62 transitions, 166 flow [2025-04-26 18:44:15,221 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 50 transitions, 136 flow [2025-04-26 18:44:15,222 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 63 places, 50 transitions, 136 flow [2025-04-26 18:44:15,222 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 50 transitions, 136 flow [2025-04-26 18:44:17,616 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 65320 states, 65319 states have (on average 5.942834397342274) internal successors, (in total 388180), 65319 states have internal predecessors, (388180), 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 18:44:17,758 INFO L171 actionProvider$Eager]: Constructed initial Büchi automaton abstraction (from Petri net) that has 65320 states, 65319 states have (on average 5.942834397342274) internal successors, (in total 388180), 65319 states have internal predecessors, (388180), 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 18:44:17,761 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 18:44:22,129 WARN L140 AmpleReduction]: Number of pruned transitions: 229932 [2025-04-26 18:44:22,130 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 18:44:22,130 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 16072 [2025-04-26 18:44:22,130 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:41 [2025-04-26 18:44:22,130 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:48829 [2025-04-26 18:44:22,130 WARN L145 AmpleReduction]: Times succ was already a loop node:11302 [2025-04-26 18:44:22,130 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:45435 [2025-04-26 18:44:22,130 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 18:44:22,251 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 64943 states, 64942 states have (on average 2.415247451572172) internal successors, (in total 156851), 64942 states have internal predecessors, (156851), 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 18:44:22,258 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 18:44:22,259 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 18:44:22,259 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 18:44:22,259 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 18:44:22,259 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 18:44:22,259 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 18:44:22,259 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 18:44:22,259 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 18:44:22,352 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 64943 states, 64942 states have (on average 2.415247451572172) internal successors, (in total 156851), 64942 states have internal predecessors, (156851), 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 18:44:23,132 INFO L131 ngComponentsAnalysis]: Automaton has 3174 accepting balls. 48234 [2025-04-26 18:44:23,133 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:44:23,133 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:44:23,138 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 18:44:23,138 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:44:23,138 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 18:44:23,218 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 64943 states, 64942 states have (on average 2.415247451572172) internal successors, (in total 156851), 64942 states have internal predecessors, (156851), 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 18:44:23,809 INFO L131 ngComponentsAnalysis]: Automaton has 3174 accepting balls. 48234 [2025-04-26 18:44:23,809 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:44:23,809 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:44:23,810 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 18:44:23,810 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:44:23,814 INFO L752 eck$LassoCheckResult]: Stem: "[98] $Ultimate##0-->L17: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[165] L17-->L34: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" [2025-04-26 18:44:23,815 INFO L754 eck$LassoCheckResult]: Loop: "[122] L34-->L36: Formula: (< v_x1_1 v_z1_1) InVars {x1=v_x1_1, z1=v_z1_1} OutVars{x1=v_x1_1, z1=v_z1_1} AuxVars[] AssignedVars[]" "[124] L36-->L37: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[126] L37-->L34: Formula: (= (+ v_c_2 1) v_c_1) InVars {c=v_c_2} OutVars{c=v_c_1} AuxVars[] AssignedVars[c]" [2025-04-26 18:44:23,817 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:23,818 INFO L85 PathProgramCache]: Analyzing trace with hash 4164, now seen corresponding path program 1 times [2025-04-26 18:44:23,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:23,822 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361537716] [2025-04-26 18:44:23,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:23,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:23,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:44:23,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:44:23,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:23,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:23,869 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:23,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:44:23,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:44:23,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:23,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:23,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:23,888 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:23,889 INFO L85 PathProgramCache]: Analyzing trace with hash 151003, now seen corresponding path program 1 times [2025-04-26 18:44:23,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:23,889 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541887117] [2025-04-26 18:44:23,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:23,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:23,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:44:23,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:44:23,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:23,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:23,895 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:23,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:44:23,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:44:23,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:23,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:23,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:23,902 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:23,902 INFO L85 PathProgramCache]: Analyzing trace with hash 124170936, now seen corresponding path program 1 times [2025-04-26 18:44:23,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:23,902 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784491429] [2025-04-26 18:44:23,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:23,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:23,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:44:23,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:44:23,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:23,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:23,907 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:23,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 18:44:23,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 18:44:23,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:23,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:23,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:24,057 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:24,058 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:24,058 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:24,058 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:24,058 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:44:24,058 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:24,058 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:24,058 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:24,058 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration1_Loop [2025-04-26 18:44:24,059 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:24,059 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:24,075 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:24,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:24,128 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:24,129 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:44:24,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:24,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:24,132 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 18:44:24,133 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 18:44:24,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:24,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:24,156 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 18:44:24,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:24,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:24,159 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 18:44:24,160 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 18:44:24,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:44:24,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:24,208 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:44:24,209 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=-3}, {c=-3}, {c=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 18:44:24,218 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 18:44:24,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:24,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:24,221 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 18:44:24,227 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 18:44:24,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:24,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:24,253 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 18:44:24,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:24,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:24,256 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 18:44:24,260 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 18:44:24,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:44:24,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:24,351 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:44:24,358 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 18:44:24,360 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:24,360 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:24,360 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:24,360 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:24,360 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:44:24,360 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:24,360 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:24,360 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:24,360 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration1_Loop [2025-04-26 18:44:24,360 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:24,360 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:24,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:24,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:24,411 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:24,414 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:44:24,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:24,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:24,417 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 18:44:24,419 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 18:44:24,423 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 18:44:24,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:24,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:24,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:24,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:24,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:24,451 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:24,451 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:24,457 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:44:24,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:24,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:24,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:24,473 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 18:44:24,476 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 18:44:24,477 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 18:44:24,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:24,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:24,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:24,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:24,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:24,489 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:24,489 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:24,491 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:44:24,494 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:44:24,497 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 18:44:24,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:24,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:24,500 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 18:44:24,501 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 18:44:24,503 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:44:24,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 18:44:24,508 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:44:24,508 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:44:24,508 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z1, x1) = 1*z1 - 1*x1 Supporting invariants [] [2025-04-26 18:44:24,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:24,523 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:44:24,572 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:24,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 18:44:24,587 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 18:44:24,587 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:24,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:24,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:44:24,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:24,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:44:24,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:44:24,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:24,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:24,608 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:44:24,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:24,666 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 18:44:24,698 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 18:44:24,799 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 64943 states, 64942 states have (on average 2.415247451572172) internal successors, (in total 156851), 64942 states have internal predecessors, (156851), 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 4 states, 4 states have (on average 1.25) internal successors, (in total 5), 4 states have internal predecessors, (5), 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 18:44:26,101 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 64943 states, 64942 states have (on average 2.415247451572172) internal successors, (in total 156851), 64942 states have internal predecessors, (156851), 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 4 states, 4 states have (on average 1.25) internal successors, (in total 5), 4 states have internal predecessors, (5), 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 132996 states and 323034 transitions. Complement of second has 6 states. [2025-04-26 18:44:26,102 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 18:44:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (in total 5), 4 states have internal predecessors, (5), 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 18:44:26,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2025-04-26 18:44:26,111 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 122 transitions. Stem has 2 letters. Loop has 3 letters. [2025-04-26 18:44:26,112 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:26,112 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 122 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 18:44:26,112 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:26,112 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 122 transitions. Stem has 2 letters. Loop has 6 letters. [2025-04-26 18:44:26,112 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:26,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132996 states and 323034 transitions. [2025-04-26 18:44:27,746 INFO L131 ngComponentsAnalysis]: Automaton has 1809 accepting balls. 20241 [2025-04-26 18:44:28,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132996 states to 86004 states and 207826 transitions. [2025-04-26 18:44:28,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42795 [2025-04-26 18:44:28,566 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 55141 [2025-04-26 18:44:28,567 INFO L74 IsDeterministic]: Start isDeterministic. Operand 86004 states and 207826 transitions. [2025-04-26 18:44:28,567 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:28,567 INFO L218 hiAutomatonCegarLoop]: Abstraction has 86004 states and 207826 transitions. [2025-04-26 18:44:28,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86004 states and 207826 transitions. [2025-04-26 18:44:30,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86004 to 79831. [2025-04-26 18:44:30,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79831 states, 79831 states have (on average 2.525998672195012) internal successors, (in total 201653), 79830 states have internal predecessors, (201653), 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 18:44:31,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79831 states to 79831 states and 201653 transitions. [2025-04-26 18:44:31,092 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79831 states and 201653 transitions. [2025-04-26 18:44:31,092 INFO L438 stractBuchiCegarLoop]: Abstraction has 79831 states and 201653 transitions. [2025-04-26 18:44:31,092 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 18:44:31,092 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79831 states and 201653 transitions. [2025-04-26 18:44:31,549 INFO L131 ngComponentsAnalysis]: Automaton has 1809 accepting balls. 20241 [2025-04-26 18:44:31,549 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:44:31,549 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:44:31,550 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-04-26 18:44:31,550 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:44:31,550 INFO L752 eck$LassoCheckResult]: Stem: "[98] $Ultimate##0-->L17: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[165] L17-->L34: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[121] L34-->L39: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[123] L39-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[125] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[168] L17-1-->L45: Formula: (and (= v_thread2Thread1of1ForFork3_thidvar0_2 2) (= v_thread2Thread1of1ForFork3_thidvar1_2 2)) InVars {} OutVars{thread2Thread1of1ForFork3_thidvar0=v_thread2Thread1of1ForFork3_thidvar0_2, thread2Thread1of1ForFork3_thidvar1=v_thread2Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork3_thidvar0, thread2Thread1of1ForFork3_thidvar1]" [2025-04-26 18:44:31,550 INFO L754 eck$LassoCheckResult]: Loop: "[128] L45-->L47: Formula: (< v_x2_1 v_z2_1) InVars {z2=v_z2_1, x2=v_x2_1} OutVars{z2=v_z2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[130] L47-->L48: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" "[132] L48-->L45: Formula: (= (+ v_c_4 1) v_c_3) InVars {c=v_c_4} OutVars{c=v_c_3} AuxVars[] AssignedVars[c]" [2025-04-26 18:44:31,551 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:31,551 INFO L85 PathProgramCache]: Analyzing trace with hash -445698895, now seen corresponding path program 1 times [2025-04-26 18:44:31,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:31,551 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700132087] [2025-04-26 18:44:31,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:31,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:31,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:44:31,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:44:31,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:31,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:31,555 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:31,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:44:31,556 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:44:31,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:31,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:31,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:31,558 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:31,558 INFO L85 PathProgramCache]: Analyzing trace with hash 156961, now seen corresponding path program 1 times [2025-04-26 18:44:31,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:31,558 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886255327] [2025-04-26 18:44:31,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:31,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:31,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:44:31,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:44:31,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:31,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:31,560 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:31,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:44:31,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:44:31,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:31,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:31,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:31,563 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:31,563 INFO L85 PathProgramCache]: Analyzing trace with hash -2071741839, now seen corresponding path program 1 times [2025-04-26 18:44:31,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:31,563 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038189426] [2025-04-26 18:44:31,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:31,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:31,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 18:44:31,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 18:44:31,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:31,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:31,566 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:31,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 18:44:31,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 18:44:31,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:31,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:31,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:31,590 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:31,590 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:31,590 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:31,590 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:31,590 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:44:31,590 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:31,590 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:31,590 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:31,590 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration2_Loop [2025-04-26 18:44:31,590 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:31,590 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:31,591 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:31,594 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:31,617 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:31,617 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:44:31,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:31,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:31,620 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 18:44:31,621 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 18:44:31,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:31,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:31,637 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 18:44:31,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:31,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:31,639 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 18:44:31,640 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 18:44:31,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:44:31,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:31,671 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:44:31,671 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=-3}, {c=-3}, {c=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 18:44:31,676 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 18:44:31,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:31,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:31,679 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 18:44:31,680 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 18:44:31,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:31,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:31,699 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 18:44:31,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:31,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:31,702 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 18:44:31,703 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 18:44:31,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:44:31,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:31,770 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:44:31,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:31,775 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:31,775 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:31,775 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:31,775 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:31,775 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:44:31,775 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:31,775 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:31,775 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:31,775 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration2_Loop [2025-04-26 18:44:31,775 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:31,775 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:31,776 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:31,782 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:31,818 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:31,818 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:44:31,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:31,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:31,820 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 18:44:31,822 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 18:44:31,827 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 18:44:31,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:31,838 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:31,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:31,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:31,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:31,839 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:31,839 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:31,844 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:44:31,849 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 18:44:31,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:31,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:31,851 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 18:44:31,852 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 18:44:31,854 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 18:44:31,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:31,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:31,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:31,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:31,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:31,867 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:31,867 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:31,869 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:44:31,871 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:44:31,871 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 18:44:31,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:31,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:31,873 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 18:44:31,875 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 18:44:31,876 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:44:31,878 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 18:44:31,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-04-26 18:44:31,880 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:44:31,880 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:44:31,880 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z2, x2) = 1*z2 - 1*x2 Supporting invariants [] [2025-04-26 18:44:31,887 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 18:44:31,888 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:44:31,902 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:31,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 18:44:31,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 18:44:31,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:31,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:31,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:44:31,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:31,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:44:31,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:44:31,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:31,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:31,929 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:44:31,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:31,957 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 18:44:31,957 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 18:44:31,958 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79831 states and 201653 transitions. cyclomatic complexity: 124924 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (in total 9), 4 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 18:44:33,428 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79831 states and 201653 transitions. cyclomatic complexity: 124924. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (in total 9), 4 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) Result 177061 states and 442296 transitions. Complement of second has 6 states. [2025-04-26 18:44:33,429 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 18:44:33,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (in total 9), 4 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 18:44:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2025-04-26 18:44:33,432 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 126 transitions. Stem has 6 letters. Loop has 3 letters. [2025-04-26 18:44:33,432 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:33,432 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 126 transitions. Stem has 9 letters. Loop has 3 letters. [2025-04-26 18:44:33,432 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:33,432 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 126 transitions. Stem has 6 letters. Loop has 6 letters. [2025-04-26 18:44:33,432 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:33,433 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 177061 states and 442296 transitions. [2025-04-26 18:44:35,103 INFO L131 ngComponentsAnalysis]: Automaton has 871 accepting balls. 7023 [2025-04-26 18:44:36,142 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 177061 states to 119349 states and 299335 transitions. [2025-04-26 18:44:36,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45532 [2025-04-26 18:44:36,264 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52844 [2025-04-26 18:44:36,264 INFO L74 IsDeterministic]: Start isDeterministic. Operand 119349 states and 299335 transitions. [2025-04-26 18:44:36,264 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:36,264 INFO L218 hiAutomatonCegarLoop]: Abstraction has 119349 states and 299335 transitions. [2025-04-26 18:44:36,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119349 states and 299335 transitions. [2025-04-26 18:44:38,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119349 to 112461. [2025-04-26 18:44:38,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112461 states, 112461 states have (on average 2.534354131654529) internal successors, (in total 285016), 112460 states have internal predecessors, (285016), 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 18:44:38,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112461 states to 112461 states and 285016 transitions. [2025-04-26 18:44:38,915 INFO L240 hiAutomatonCegarLoop]: Abstraction has 112461 states and 285016 transitions. [2025-04-26 18:44:38,915 INFO L438 stractBuchiCegarLoop]: Abstraction has 112461 states and 285016 transitions. [2025-04-26 18:44:38,915 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 18:44:38,915 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 112461 states and 285016 transitions. [2025-04-26 18:44:39,631 INFO L131 ngComponentsAnalysis]: Automaton has 871 accepting balls. 7023 [2025-04-26 18:44:39,631 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:44:39,631 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:44:39,632 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 18:44:39,632 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:44:39,632 INFO L752 eck$LassoCheckResult]: Stem: "[98] $Ultimate##0-->L17: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[165] L17-->L34: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[121] L34-->L39: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[123] L39-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[125] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[168] L17-1-->L45: Formula: (and (= v_thread2Thread1of1ForFork3_thidvar0_2 2) (= v_thread2Thread1of1ForFork3_thidvar1_2 2)) InVars {} OutVars{thread2Thread1of1ForFork3_thidvar0=v_thread2Thread1of1ForFork3_thidvar0_2, thread2Thread1of1ForFork3_thidvar1=v_thread2Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork3_thidvar0, thread2Thread1of1ForFork3_thidvar1]" "[127] L45-->L50: Formula: (<= v_z2_2 v_x2_4) InVars {z2=v_z2_2, x2=v_x2_4} OutVars{z2=v_z2_2, x2=v_x2_4} AuxVars[] AssignedVars[]" "[129] L50-->thread2FINAL: Formula: (= (+ v_f_4 1) v_f_3) InVars {f=v_f_4} OutVars{f=v_f_3} AuxVars[] AssignedVars[f]" "[131] thread2FINAL-->thread2EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[171] L18-->L56: Formula: (and (= v_thread3Thread1of1ForFork4_thidvar0_2 3) (= v_thread3Thread1of1ForFork4_thidvar1_2 3) (= v_thread3Thread1of1ForFork4_thidvar2_2 3)) InVars {} OutVars{thread3Thread1of1ForFork4_thidvar0=v_thread3Thread1of1ForFork4_thidvar0_2, thread3Thread1of1ForFork4_thidvar1=v_thread3Thread1of1ForFork4_thidvar1_2, thread3Thread1of1ForFork4_thidvar2=v_thread3Thread1of1ForFork4_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork4_thidvar0, thread3Thread1of1ForFork4_thidvar1, thread3Thread1of1ForFork4_thidvar2]" [2025-04-26 18:44:39,632 INFO L754 eck$LassoCheckResult]: Loop: "[134] L56-->L58: Formula: (< v_x3_1 v_z3_1) InVars {z3=v_z3_1, x3=v_x3_1} OutVars{z3=v_z3_1, x3=v_x3_1} AuxVars[] AssignedVars[]" "[136] L58-->L59: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" "[138] L59-->L56: Formula: (= v_c_5 (+ v_c_6 1)) InVars {c=v_c_6} OutVars{c=v_c_5} AuxVars[] AssignedVars[c]" [2025-04-26 18:44:39,633 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:39,633 INFO L85 PathProgramCache]: Analyzing trace with hash 200481819, now seen corresponding path program 1 times [2025-04-26 18:44:39,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:39,633 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235713544] [2025-04-26 18:44:39,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:39,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:39,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 18:44:39,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 18:44:39,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:39,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:39,637 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:39,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 18:44:39,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 18:44:39,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:39,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:39,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:39,645 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:39,645 INFO L85 PathProgramCache]: Analyzing trace with hash 162919, now seen corresponding path program 1 times [2025-04-26 18:44:39,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:39,645 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037813590] [2025-04-26 18:44:39,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:39,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:39,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:44:39,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:44:39,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:39,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:39,648 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:39,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:44:39,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:44:39,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:39,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:39,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:39,650 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:39,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1745505779, now seen corresponding path program 1 times [2025-04-26 18:44:39,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:39,650 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861125030] [2025-04-26 18:44:39,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:39,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:39,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-26 18:44:39,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-26 18:44:39,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:39,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:39,654 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:39,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-26 18:44:39,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-26 18:44:39,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:39,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:39,658 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:39,678 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:39,678 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:39,678 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:39,678 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:39,679 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:44:39,679 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:39,679 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:39,679 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:39,679 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration3_Loop [2025-04-26 18:44:39,679 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:39,679 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:39,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:39,684 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:39,705 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:39,705 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:44:39,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:39,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:39,707 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 18:44:39,707 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 18:44:39,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:39,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:39,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-04-26 18:44:39,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:39,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:39,725 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 18:44:39,725 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 18:44:39,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:44:39,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:39,786 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:44:39,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-04-26 18:44:39,791 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:39,791 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:39,791 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:39,791 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:39,791 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:44:39,791 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:39,791 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:39,791 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:39,791 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration3_Loop [2025-04-26 18:44:39,791 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:39,791 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:39,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:39,805 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:39,826 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:39,826 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:44:39,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:39,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:39,829 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 18:44:39,831 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 18:44:39,831 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 18:44:39,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:39,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:39,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:39,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:39,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:39,842 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:39,842 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:39,847 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:44:39,851 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:44:39,851 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:44:39,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:39,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:39,853 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 18:44:39,854 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 18:44:39,855 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:44:39,857 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 18:44:39,858 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:44:39,858 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:44:39,858 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(x3, z3) = -1*x3 + 1*z3 Supporting invariants [] [2025-04-26 18:44:39,863 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 18:44:39,863 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:44:39,875 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:39,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 18:44:39,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 18:44:39,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:39,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:39,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:44:39,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:39,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:44:39,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:44:39,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:39,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:39,902 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:44:39,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:39,923 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 18:44:39,924 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 18:44:39,924 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 112461 states and 285016 transitions. cyclomatic complexity: 176195 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (in total 13), 4 states have internal predecessors, (13), 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 18:44:41,762 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 112461 states and 285016 transitions. cyclomatic complexity: 176195. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (in total 13), 4 states have internal predecessors, (13), 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 263221 states and 660663 transitions. Complement of second has 6 states. [2025-04-26 18:44:41,763 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 18:44:41,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (in total 13), 4 states have internal predecessors, (13), 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 18:44:41,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2025-04-26 18:44:41,763 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 131 transitions. Stem has 10 letters. Loop has 3 letters. [2025-04-26 18:44:41,764 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:41,764 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 131 transitions. Stem has 13 letters. Loop has 3 letters. [2025-04-26 18:44:41,764 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:41,764 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 131 transitions. Stem has 10 letters. Loop has 6 letters. [2025-04-26 18:44:41,764 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:41,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 263221 states and 660663 transitions. [2025-04-26 18:44:44,245 INFO L131 ngComponentsAnalysis]: Automaton has 339 accepting balls. 1971 [2025-04-26 18:44:45,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 263221 states to 172183 states and 428210 transitions. [2025-04-26 18:44:45,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49670 [2025-04-26 18:44:45,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53477 [2025-04-26 18:44:45,843 INFO L74 IsDeterministic]: Start isDeterministic. Operand 172183 states and 428210 transitions. [2025-04-26 18:44:45,843 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:45,843 INFO L218 hiAutomatonCegarLoop]: Abstraction has 172183 states and 428210 transitions. [2025-04-26 18:44:46,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172183 states and 428210 transitions. [2025-04-26 18:44:48,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172183 to 167233. [2025-04-26 18:44:48,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167233 states, 167233 states have (on average 2.511442119677336) internal successors, (in total 419996), 167232 states have internal predecessors, (419996), 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 18:44:49,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167233 states to 167233 states and 419996 transitions. [2025-04-26 18:44:49,271 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167233 states and 419996 transitions. [2025-04-26 18:44:49,271 INFO L438 stractBuchiCegarLoop]: Abstraction has 167233 states and 419996 transitions. [2025-04-26 18:44:49,271 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 18:44:49,272 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167233 states and 419996 transitions. [2025-04-26 18:44:50,192 INFO L131 ngComponentsAnalysis]: Automaton has 339 accepting balls. 1971 [2025-04-26 18:44:50,193 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:44:50,193 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:44:50,194 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 18:44:50,194 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:44:50,195 INFO L752 eck$LassoCheckResult]: Stem: "[98] $Ultimate##0-->L17: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[165] L17-->L34: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[121] L34-->L39: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[123] L39-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[125] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[168] L17-1-->L45: Formula: (and (= v_thread2Thread1of1ForFork3_thidvar0_2 2) (= v_thread2Thread1of1ForFork3_thidvar1_2 2)) InVars {} OutVars{thread2Thread1of1ForFork3_thidvar0=v_thread2Thread1of1ForFork3_thidvar0_2, thread2Thread1of1ForFork3_thidvar1=v_thread2Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork3_thidvar0, thread2Thread1of1ForFork3_thidvar1]" "[127] L45-->L50: Formula: (<= v_z2_2 v_x2_4) InVars {z2=v_z2_2, x2=v_x2_4} OutVars{z2=v_z2_2, x2=v_x2_4} AuxVars[] AssignedVars[]" "[129] L50-->thread2FINAL: Formula: (= (+ v_f_4 1) v_f_3) InVars {f=v_f_4} OutVars{f=v_f_3} AuxVars[] AssignedVars[f]" "[131] thread2FINAL-->thread2EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[171] L18-->L56: Formula: (and (= v_thread3Thread1of1ForFork4_thidvar0_2 3) (= v_thread3Thread1of1ForFork4_thidvar1_2 3) (= v_thread3Thread1of1ForFork4_thidvar2_2 3)) InVars {} OutVars{thread3Thread1of1ForFork4_thidvar0=v_thread3Thread1of1ForFork4_thidvar0_2, thread3Thread1of1ForFork4_thidvar1=v_thread3Thread1of1ForFork4_thidvar1_2, thread3Thread1of1ForFork4_thidvar2=v_thread3Thread1of1ForFork4_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork4_thidvar0, thread3Thread1of1ForFork4_thidvar1, thread3Thread1of1ForFork4_thidvar2]" "[133] L56-->L61: Formula: (<= v_z3_2 v_x3_4) InVars {z3=v_z3_2, x3=v_x3_4} OutVars{z3=v_z3_2, x3=v_x3_4} AuxVars[] AssignedVars[]" "[135] L61-->thread3FINAL: Formula: (= v_f_5 (+ v_f_6 1)) InVars {f=v_f_6} OutVars{f=v_f_5} AuxVars[] AssignedVars[f]" "[137] thread3FINAL-->thread3EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[174] L19-->$Ultimate##0: Formula: (and (= v_thread4Thread1of1ForFork5_thidvar2_2 4) (= v_thread4Thread1of1ForFork5_thidvar0_2 4) (= v_thread4Thread1of1ForFork5_thidvar1_2 4) (= v_thread4Thread1of1ForFork5_thidvar3_2 4)) InVars {} OutVars{thread4Thread1of1ForFork5_thidvar3=v_thread4Thread1of1ForFork5_thidvar3_2, thread4Thread1of1ForFork5_thidvar2=v_thread4Thread1of1ForFork5_thidvar2_2, thread4Thread1of1ForFork5_thidvar1=v_thread4Thread1of1ForFork5_thidvar1_2, thread4Thread1of1ForFork5_thidvar0=v_thread4Thread1of1ForFork5_thidvar0_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork5_thidvar3, thread4Thread1of1ForFork5_thidvar2, thread4Thread1of1ForFork5_thidvar1, thread4Thread1of1ForFork5_thidvar0]" "[139] $Ultimate##0-->L68-1: Formula: (< 2 v_f_8) InVars {f=v_f_8} OutVars{f=v_f_8} AuxVars[] AssignedVars[]" [2025-04-26 18:44:50,196 INFO L754 eck$LassoCheckResult]: Loop: "[141] L68-1-->L70: Formula: (< v_y1_2 v_z1_4) InVars {y1=v_y1_2, z1=v_z1_4} OutVars{y1=v_y1_2, z1=v_z1_4} AuxVars[] AssignedVars[]" "[143] L70-->L71: Formula: (= v_y1_3 (+ v_y1_4 1)) InVars {y1=v_y1_4} OutVars{y1=v_y1_3} AuxVars[] AssignedVars[y1]" "[144] L71-->L68-1: Formula: (= v_c_8 (+ v_c_7 1)) InVars {c=v_c_8} OutVars{c=v_c_7} AuxVars[] AssignedVars[c]" [2025-04-26 18:44:50,196 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:50,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1900210377, now seen corresponding path program 1 times [2025-04-26 18:44:50,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:50,196 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645910787] [2025-04-26 18:44:50,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:50,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:50,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-26 18:44:50,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-26 18:44:50,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:50,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:50,211 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:50,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-26 18:44:50,218 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-26 18:44:50,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:50,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:50,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:50,220 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:50,220 INFO L85 PathProgramCache]: Analyzing trace with hash 169869, now seen corresponding path program 1 times [2025-04-26 18:44:50,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:50,220 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140771389] [2025-04-26 18:44:50,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:50,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:50,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:44:50,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:44:50,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:50,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:50,226 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:50,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:44:50,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:44:50,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:50,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:50,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:50,233 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:50,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1498520005, now seen corresponding path program 1 times [2025-04-26 18:44:50,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:44:50,233 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764635185] [2025-04-26 18:44:50,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:44:50,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:44:50,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-26 18:44:50,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-26 18:44:50,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:50,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:50,248 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:44:50,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-26 18:44:50,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-26 18:44:50,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:50,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:44:50,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:44:50,292 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:50,292 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:50,293 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:50,293 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:50,293 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:44:50,293 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:50,293 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:50,293 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:50,293 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration4_Loop [2025-04-26 18:44:50,293 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:50,293 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:50,294 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:50,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:50,334 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:50,334 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:44:50,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:50,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:50,336 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 18:44:50,338 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 18:44:50,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:50,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:50,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-04-26 18:44:50,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:50,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:50,376 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 18:44:50,378 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 18:44:50,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:44:50,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:50,410 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:44:50,410 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=0}, {c=7}, {c=-8}] Lambdas: [0, 1, 1] Nus: [0, 0] [2025-04-26 18:44:50,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:50,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:50,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:50,418 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 18:44:50,419 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 18:44:50,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:44:50,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:50,441 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 18:44:50,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:50,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:50,447 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 18:44:50,448 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 18:44:50,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:44:50,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:44:50,528 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:44:50,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:50,532 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:44:50,532 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:44:50,532 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:44:50,532 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:44:50,532 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:44:50,532 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:50,532 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:44:50,532 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:44:50,532 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration4_Loop [2025-04-26 18:44:50,532 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:44:50,532 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:44:50,533 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:50,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:44:50,567 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:44:50,567 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:44:50,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:50,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:50,570 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 18:44:50,579 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 18:44:50,579 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 18:44:50,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:50,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:50,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:50,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:50,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:50,599 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:50,599 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:50,603 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:44:50,612 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 18:44:50,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:50,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:50,618 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 18:44:50,620 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 18:44:50,620 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 18:44:50,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:44:50,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:44:50,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:44:50,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:44:50,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:44:50,637 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:44:50,637 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:44:50,639 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:44:50,641 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 18:44:50,641 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 18:44:50,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:44:50,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:44:50,643 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 18:44:50,644 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 18:44:50,645 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:44:50,648 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 18:44:50,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2025-04-26 18:44:50,648 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:44:50,648 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:44:50,648 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(y1, z1) = -1*y1 + 1*z1 Supporting invariants [] [2025-04-26 18:44:50,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2025-04-26 18:44:50,654 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:44:50,672 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:44:50,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-26 18:44:50,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-26 18:44:50,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:50,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:50,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:44:50,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:50,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:44:50,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:44:50,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:44:50,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:44:50,726 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:44:50,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:44:50,762 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 18:44:50,762 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 18:44:50,762 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 167233 states and 419996 transitions. cyclomatic complexity: 257829 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (in total 18), 4 states have internal predecessors, (18), 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 18:44:53,424 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 167233 states and 419996 transitions. cyclomatic complexity: 257829. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (in total 18), 4 states have internal predecessors, (18), 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 366462 states and 901070 transitions. Complement of second has 6 states. [2025-04-26 18:44:53,424 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 18:44:53,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (in total 18), 4 states have internal predecessors, (18), 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 18:44:53,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 152 transitions. [2025-04-26 18:44:53,425 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 152 transitions. Stem has 15 letters. Loop has 3 letters. [2025-04-26 18:44:53,425 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:53,425 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 152 transitions. Stem has 18 letters. Loop has 3 letters. [2025-04-26 18:44:53,425 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:53,426 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 152 transitions. Stem has 15 letters. Loop has 6 letters. [2025-04-26 18:44:53,426 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:44:53,426 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 366462 states and 901070 transitions. [2025-04-26 18:44:56,933 INFO L131 ngComponentsAnalysis]: Automaton has 172 accepting balls. 702 [2025-04-26 18:44:58,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 366462 states to 250889 states and 610112 transitions. [2025-04-26 18:44:58,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57881 [2025-04-26 18:44:58,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 61139 [2025-04-26 18:44:58,850 INFO L74 IsDeterministic]: Start isDeterministic. Operand 250889 states and 610112 transitions. [2025-04-26 18:44:58,850 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:44:58,850 INFO L218 hiAutomatonCegarLoop]: Abstraction has 250889 states and 610112 transitions. [2025-04-26 18:44:59,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250889 states and 610112 transitions. [2025-04-26 18:45:02,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250889 to 244655. [2025-04-26 18:45:02,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244655 states, 244655 states have (on average 2.462479818519957) internal successors, (in total 602458), 244654 states have internal predecessors, (602458), 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 18:45:03,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244655 states to 244655 states and 602458 transitions. [2025-04-26 18:45:03,448 INFO L240 hiAutomatonCegarLoop]: Abstraction has 244655 states and 602458 transitions. [2025-04-26 18:45:03,448 INFO L438 stractBuchiCegarLoop]: Abstraction has 244655 states and 602458 transitions. [2025-04-26 18:45:03,448 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 18:45:03,448 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 244655 states and 602458 transitions. [2025-04-26 18:45:04,616 INFO L131 ngComponentsAnalysis]: Automaton has 172 accepting balls. 702 [2025-04-26 18:45:04,616 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 18:45:04,616 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 18:45:04,617 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 18:45:04,617 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 18:45:04,618 INFO L752 eck$LassoCheckResult]: Stem: "[98] $Ultimate##0-->L17: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[165] L17-->L34: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[121] L34-->L39: Formula: (<= v_z1_2 v_x1_4) InVars {x1=v_x1_4, z1=v_z1_2} OutVars{x1=v_x1_4, z1=v_z1_2} AuxVars[] AssignedVars[]" "[123] L39-->thread1FINAL: Formula: (= (+ v_f_2 1) v_f_1) InVars {f=v_f_2} OutVars{f=v_f_1} AuxVars[] AssignedVars[f]" "[125] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[168] L17-1-->L45: Formula: (and (= v_thread2Thread1of1ForFork3_thidvar0_2 2) (= v_thread2Thread1of1ForFork3_thidvar1_2 2)) InVars {} OutVars{thread2Thread1of1ForFork3_thidvar0=v_thread2Thread1of1ForFork3_thidvar0_2, thread2Thread1of1ForFork3_thidvar1=v_thread2Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork3_thidvar0, thread2Thread1of1ForFork3_thidvar1]" "[127] L45-->L50: Formula: (<= v_z2_2 v_x2_4) InVars {z2=v_z2_2, x2=v_x2_4} OutVars{z2=v_z2_2, x2=v_x2_4} AuxVars[] AssignedVars[]" "[129] L50-->thread2FINAL: Formula: (= (+ v_f_4 1) v_f_3) InVars {f=v_f_4} OutVars{f=v_f_3} AuxVars[] AssignedVars[f]" "[131] thread2FINAL-->thread2EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[171] L18-->L56: Formula: (and (= v_thread3Thread1of1ForFork4_thidvar0_2 3) (= v_thread3Thread1of1ForFork4_thidvar1_2 3) (= v_thread3Thread1of1ForFork4_thidvar2_2 3)) InVars {} OutVars{thread3Thread1of1ForFork4_thidvar0=v_thread3Thread1of1ForFork4_thidvar0_2, thread3Thread1of1ForFork4_thidvar1=v_thread3Thread1of1ForFork4_thidvar1_2, thread3Thread1of1ForFork4_thidvar2=v_thread3Thread1of1ForFork4_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork4_thidvar0, thread3Thread1of1ForFork4_thidvar1, thread3Thread1of1ForFork4_thidvar2]" "[133] L56-->L61: Formula: (<= v_z3_2 v_x3_4) InVars {z3=v_z3_2, x3=v_x3_4} OutVars{z3=v_z3_2, x3=v_x3_4} AuxVars[] AssignedVars[]" "[135] L61-->thread3FINAL: Formula: (= v_f_5 (+ v_f_6 1)) InVars {f=v_f_6} OutVars{f=v_f_5} AuxVars[] AssignedVars[f]" "[137] thread3FINAL-->thread3EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[174] L19-->$Ultimate##0: Formula: (and (= v_thread4Thread1of1ForFork5_thidvar2_2 4) (= v_thread4Thread1of1ForFork5_thidvar0_2 4) (= v_thread4Thread1of1ForFork5_thidvar1_2 4) (= v_thread4Thread1of1ForFork5_thidvar3_2 4)) InVars {} OutVars{thread4Thread1of1ForFork5_thidvar3=v_thread4Thread1of1ForFork5_thidvar3_2, thread4Thread1of1ForFork5_thidvar2=v_thread4Thread1of1ForFork5_thidvar2_2, thread4Thread1of1ForFork5_thidvar1=v_thread4Thread1of1ForFork5_thidvar1_2, thread4Thread1of1ForFork5_thidvar0=v_thread4Thread1of1ForFork5_thidvar0_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork5_thidvar3, thread4Thread1of1ForFork5_thidvar2, thread4Thread1of1ForFork5_thidvar1, thread4Thread1of1ForFork5_thidvar0]" "[139] $Ultimate##0-->L68-1: Formula: (< 2 v_f_8) InVars {f=v_f_8} OutVars{f=v_f_8} AuxVars[] AssignedVars[]" "[140] L68-1-->thread4FINAL: Formula: (<= v_z1_3 v_y1_1) InVars {y1=v_y1_1, z1=v_z1_3} OutVars{y1=v_y1_1, z1=v_z1_3} AuxVars[] AssignedVars[]" "[142] thread4FINAL-->thread4EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[159] L20-->$Ultimate##0: Formula: (and (= 5 v_thread5Thread1of1ForFork0_thidvar4_2) (= 5 v_thread5Thread1of1ForFork0_thidvar3_2) (= 5 v_thread5Thread1of1ForFork0_thidvar2_2) (= 5 v_thread5Thread1of1ForFork0_thidvar1_2) (= 5 v_thread5Thread1of1ForFork0_thidvar0_2)) InVars {} OutVars{thread5Thread1of1ForFork0_thidvar4=v_thread5Thread1of1ForFork0_thidvar4_2, thread5Thread1of1ForFork0_thidvar3=v_thread5Thread1of1ForFork0_thidvar3_2, thread5Thread1of1ForFork0_thidvar2=v_thread5Thread1of1ForFork0_thidvar2_2, thread5Thread1of1ForFork0_thidvar1=v_thread5Thread1of1ForFork0_thidvar1_2, thread5Thread1of1ForFork0_thidvar0=v_thread5Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread5Thread1of1ForFork0_thidvar4, thread5Thread1of1ForFork0_thidvar3, thread5Thread1of1ForFork0_thidvar2, thread5Thread1of1ForFork0_thidvar1, thread5Thread1of1ForFork0_thidvar0]" "[145] $Ultimate##0-->L79-1: Formula: (< 2 v_f_9) InVars {f=v_f_9} OutVars{f=v_f_9} AuxVars[] AssignedVars[]" [2025-04-26 18:45:04,618 INFO L754 eck$LassoCheckResult]: Loop: "[147] L79-1-->L81: Formula: (< v_y2_1 v_z2_3) InVars {z2=v_z2_3, y2=v_y2_1} OutVars{z2=v_z2_3, y2=v_y2_1} AuxVars[] AssignedVars[]" "[149] L81-->L82: Formula: (= v_y2_2 (+ v_y2_3 1)) InVars {y2=v_y2_3} OutVars{y2=v_y2_2} AuxVars[] AssignedVars[y2]" "[150] L82-->L79-1: Formula: (= (+ v_c_9 1) v_c_10) InVars {c=v_c_10} OutVars{c=v_c_9} AuxVars[] AssignedVars[c]" [2025-04-26 18:45:04,618 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:45:04,618 INFO L85 PathProgramCache]: Analyzing trace with hash -790550243, now seen corresponding path program 1 times [2025-04-26 18:45:04,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:45:04,618 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403554512] [2025-04-26 18:45:04,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:45:04,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:45:04,622 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-26 18:45:04,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-26 18:45:04,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:45:04,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:45:04,624 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:45:04,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-26 18:45:04,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-26 18:45:04,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:45:04,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:45:04,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:45:04,631 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:45:04,631 INFO L85 PathProgramCache]: Analyzing trace with hash 175827, now seen corresponding path program 1 times [2025-04-26 18:45:04,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:45:04,631 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781239289] [2025-04-26 18:45:04,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:45:04,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:45:04,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:45:04,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:45:04,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:45:04,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:45:04,637 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:45:04,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:45:04,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:45:04,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:45:04,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:45:04,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:45:04,639 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:45:04,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1976459209, now seen corresponding path program 1 times [2025-04-26 18:45:04,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 18:45:04,639 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69638383] [2025-04-26 18:45:04,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 18:45:04,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 18:45:04,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-26 18:45:04,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-26 18:45:04,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:45:04,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:45:04,648 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 18:45:04,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-26 18:45:04,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-26 18:45:04,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:45:04,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 18:45:04,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 18:45:04,669 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:45:04,669 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:45:04,669 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:45:04,669 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:45:04,669 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 18:45:04,669 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:45:04,669 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:45:04,669 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:45:04,669 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration5_Loop [2025-04-26 18:45:04,669 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:45:04,669 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:45:04,670 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:45:04,671 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:45:04,690 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:45:04,690 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 18:45:04,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:45:04,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:45:04,692 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 18:45:04,692 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 18:45:04,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:45:04,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:45:04,710 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 18:45:04,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:45:04,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:45:04,712 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 18:45:04,712 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 18:45:04,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:45:04,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:45:04,734 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 18:45:04,734 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=0}, {c=7}, {c=-8}] Lambdas: [0, 1, 1] Nus: [0, 0] [2025-04-26 18:45:04,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2025-04-26 18:45:04,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:45:04,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:45:04,740 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 18:45:04,741 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 18:45:04,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 18:45:04,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:45:04,758 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 18:45:04,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:45:04,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:45:04,760 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 18:45:04,760 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 18:45:04,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 18:45:04,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 18:45:04,815 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 18:45:04,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2025-04-26 18:45:04,821 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 18:45:04,821 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 18:45:04,821 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 18:45:04,821 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 18:45:04,821 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 18:45:04,821 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:45:04,821 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 18:45:04,821 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 18:45:04,821 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc6.c.bpl_petrified1_Iteration5_Loop [2025-04-26 18:45:04,821 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 18:45:04,821 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 18:45:04,822 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:45:04,824 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 18:45:04,843 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 18:45:04,843 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 18:45:04,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:45:04,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:45:04,845 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 18:45:04,845 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 18:45:04,846 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 18:45:04,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:45:04,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:45:04,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:45:04,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:45:04,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:45:04,856 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:45:04,856 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:45:04,858 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 18:45:04,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2025-04-26 18:45:04,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:45:04,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:45:04,864 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 18:45:04,864 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 18:45:04,865 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 18:45:04,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 18:45:04,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 18:45:04,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 18:45:04,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 18:45:04,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 18:45:04,875 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 18:45:04,875 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 18:45:04,877 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 18:45:04,879 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 18:45:04,879 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 18:45:04,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 18:45:04,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 18:45:04,881 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 18:45:04,882 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 18:45:04,883 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 18:45:04,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2025-04-26 18:45:04,886 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 18:45:04,886 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 18:45:04,886 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(y2, z2) = -1*y2 + 1*z2 Supporting invariants [] [2025-04-26 18:45:04,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2025-04-26 18:45:04,892 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 18:45:04,900 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 18:45:04,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-26 18:45:04,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-26 18:45:04,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:45:04,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:45:04,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 18:45:04,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:45:04,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 18:45:04,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 18:45:04,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 18:45:04,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 18:45:04,937 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 18:45:04,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 18:45:04,960 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 18:45:04,961 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 18:45:04,961 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 244655 states and 602458 transitions. cyclomatic complexity: 364753 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (in total 22), 4 states have internal predecessors, (22), 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 18:45:08,331 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 244655 states and 602458 transitions. cyclomatic complexity: 364753. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (in total 22), 4 states have internal predecessors, (22), 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 539822 states and 1305161 transitions. Complement of second has 6 states. [2025-04-26 18:45:08,332 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 18:45:08,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (in total 22), 4 states have internal predecessors, (22), 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 18:45:08,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 151 transitions. [2025-04-26 18:45:08,333 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 151 transitions. Stem has 19 letters. Loop has 3 letters. [2025-04-26 18:45:08,333 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:45:08,333 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 151 transitions. Stem has 22 letters. Loop has 3 letters. [2025-04-26 18:45:08,333 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:45:08,333 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 151 transitions. Stem has 19 letters. Loop has 6 letters. [2025-04-26 18:45:08,333 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 18:45:08,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 539822 states and 1305161 transitions. [2025-04-26 18:45:12,977 INFO L131 ngComponentsAnalysis]: Automaton has 63 accepting balls. 189 [2025-04-26 18:45:14,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 539822 states to 311426 states and 745914 transitions. [2025-04-26 18:45:14,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58885 [2025-04-26 18:45:15,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60797 [2025-04-26 18:45:15,283 INFO L74 IsDeterministic]: Start isDeterministic. Operand 311426 states and 745914 transitions. [2025-04-26 18:45:15,283 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 18:45:15,283 INFO L218 hiAutomatonCegarLoop]: Abstraction has 311426 states and 745914 transitions. [2025-04-26 18:45:15,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311426 states and 745914 transitions.