/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 ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:55:10,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:55:11,022 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:55:11,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:55:11,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:55:11,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:55:11,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:55:11,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:55:11,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:55:11,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:55:11,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:55:11,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:55:11,047 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:55:11,047 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:55:11,047 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:55:11,047 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:55:11,047 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:55:11,047 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:55:11,047 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:55:11,047 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:55:11,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:55:11,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:55:11,047 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:55:11,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:55:11,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:55:11,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:55:11,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:55:11,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:55:11,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:55:11,048 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:55:11,048 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:55:11,048 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:55:11,048 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:55:11,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:55:11,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:55:11,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:55:11,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:55:11,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:55:11,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:55:11,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:55:11,049 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:55:11,049 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:55:11,049 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:55:11,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:55:11,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:55:11,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:55:11,296 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:55:11,296 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:55:11,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl [2025-04-26 16:55:11,297 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-5.wvr.bpl' [2025-04-26 16:55:11,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:55:11,317 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:55:11,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:55:11,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:55:11,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:55:11,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/1) ... [2025-04-26 16:55:11,346 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/1) ... [2025-04-26 16:55:11,350 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:55:11,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:55:11,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:55:11,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:55:11,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:55:11,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/1) ... [2025-04-26 16:55:11,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/1) ... [2025-04-26 16:55:11,359 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/1) ... [2025-04-26 16:55:11,359 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/1) ... [2025-04-26 16:55:11,362 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/1) ... [2025-04-26 16:55:11,366 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/1) ... [2025-04-26 16:55:11,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/1) ... [2025-04-26 16:55:11,368 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/1) ... [2025-04-26 16:55:11,369 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/1) ... [2025-04-26 16:55:11,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:55:11,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:55:11,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:55:11,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:55:11,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/1) ... [2025-04-26 16:55:11,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:55:11,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:11,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:11,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-26 16:55:11,423 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:55:11,423 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:55:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:55:11,424 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:55:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:55:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:55:11,424 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:55:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:55:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:55:11,424 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:55:11,424 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:55:11,424 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:55:11,425 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:55:11,457 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:55:11,458 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:55:11,523 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:55:11,523 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:55:11,545 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:55:11,545 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:55:11,545 INFO L201 PluginConnector]: Adding new model misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:55:11 BoogieIcfgContainer [2025-04-26 16:55:11,545 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:55:11,546 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:55:11,546 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:55:11,552 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:55:11,553 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:55:11,553 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:11" (1/2) ... [2025-04-26 16:55:11,554 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e4b9971 and model type misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:55:11, skipping insertion in model container [2025-04-26 16:55:11,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:55:11,554 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:55:11" (2/2) ... [2025-04-26 16:55:11,555 INFO L376 chiAutomizerObserver]: Analyzing ICFG misc-5.wvr.bpl [2025-04-26 16:55:11,595 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 16:55:11,637 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:55:11,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:55:11,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:11,641 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:11,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-26 16:55:11,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 28 transitions, 77 flow [2025-04-26 16:55:11,701 INFO L116 PetriNetUnfolderBase]: 4/22 cut-off events. [2025-04-26 16:55:11,703 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 16:55:11,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 22 events. 4/22 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 18. Up to 3 conditions per place. [2025-04-26 16:55:11,706 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 28 transitions, 77 flow [2025-04-26 16:55:11,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 22 transitions, 62 flow [2025-04-26 16:55:11,708 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 28 places, 22 transitions, 62 flow [2025-04-26 16:55:11,713 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 16:55:11,880 WARN L140 AmpleReduction]: Number of pruned transitions: 67 [2025-04-26 16:55:11,881 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 16:55:11,881 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 12 [2025-04-26 16:55:11,881 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:35 [2025-04-26 16:55:11,881 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:36 [2025-04-26 16:55:11,881 WARN L145 AmpleReduction]: Times succ was already a loop node:55 [2025-04-26 16:55:11,881 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:0 [2025-04-26 16:55:11,881 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 16:55:11,884 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 84 states, 82 states have (on average 2.2439024390243905) internal successors, (in total 184), 83 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:11,889 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:55:11,889 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:55:11,889 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:55:11,889 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:55:11,889 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:55:11,889 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:55:11,889 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:55:11,889 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:55:11,892 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 84 states, 82 states have (on average 2.2439024390243905) internal successors, (in total 184), 83 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:11,905 INFO L131 ngComponentsAnalysis]: Automaton has 19 accepting balls. 46 [2025-04-26 16:55:11,906 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:11,907 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:11,910 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:55:11,910 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:11,910 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:55:11,911 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 84 states, 82 states have (on average 2.2439024390243905) internal successors, (in total 184), 83 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:11,917 INFO L131 ngComponentsAnalysis]: Automaton has 19 accepting balls. 46 [2025-04-26 16:55:11,917 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:11,917 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:11,917 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:55:11,917 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:11,922 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[]" "[90] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" [2025-04-26 16:55:11,922 INFO L754 eck$LassoCheckResult]: Loop: "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[73] L18-->L25: Formula: (and (= (+ v_c1_11 1) v_c1_12) (< 0 v_c1_12) (= v_pos_16 (+ v_pos_15 1))) InVars {pos=v_pos_16, c1=v_c1_12} OutVars{pos=v_pos_15, c1=v_c1_11} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:55:11,926 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:11,926 INFO L85 PathProgramCache]: Analyzing trace with hash 3004, now seen corresponding path program 1 times [2025-04-26 16:55:11,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:11,931 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227869245] [2025-04-26 16:55:11,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:11,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:11,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:11,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:11,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:11,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:11,981 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:11,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:11,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:11,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:11,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:11,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:12,000 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:12,000 INFO L85 PathProgramCache]: Analyzing trace with hash 3235, now seen corresponding path program 1 times [2025-04-26 16:55:12,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:12,001 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060142967] [2025-04-26 16:55:12,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:12,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:12,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:12,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:12,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:12,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:12,008 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:12,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:12,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:12,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:12,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:12,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:12,012 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:12,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2889118, now seen corresponding path program 1 times [2025-04-26 16:55:12,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:12,013 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095847995] [2025-04-26 16:55:12,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:12,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:12,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:55:12,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:55:12,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:12,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:12,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:55:12,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:55:12,118 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095847995] [2025-04-26 16:55:12,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095847995] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:55:12,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:55:12,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-26 16:55:12,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002179789] [2025-04-26 16:55:12,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:55:12,211 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:12,216 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:12,216 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:12,216 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:12,216 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:55:12,217 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,217 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:12,217 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:12,217 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:55:12,217 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:12,217 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:12,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:12,240 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:12,249 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:12,296 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:12,296 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:55:12,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:12,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:55:12,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:12,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,324 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:12,324 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite v_assert 1 0)_1=1} Honda state: {v_rep(ite v_assert 1 0)_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:12,330 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 16:55:12,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,332 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:12,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:55:12,333 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:12,333 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,386 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 16:55:12,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,389 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:12,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:55:12,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:12,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,414 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:55:12,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-04-26 16:55:12,418 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:12,418 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:12,418 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:12,418 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:12,418 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:12,418 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,419 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:12,419 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:12,419 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:55:12,419 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:12,419 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:12,419 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:12,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:12,431 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:12,463 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:12,466 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:12,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,468 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:12,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:55:12,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:55:12,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:12,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:12,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:12,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:12,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:12,488 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:12,488 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:12,490 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:12,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 16:55:12,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,497 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 16:55:12,499 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 16:55:12,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:55:12,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:12,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:12,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:12,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:12,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:12,512 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:12,512 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:12,514 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:12,517 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:55:12,517 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:55:12,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,520 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 16:55:12,521 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 16:55:12,522 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:12,526 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 16:55:12,526 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:55:12,526 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:12,526 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(c1) = 1*c1 Supporting invariants [] [2025-04-26 16:55:12,531 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 16:55:12,533 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:12,546 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:12,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:12,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:12,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:12,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:12,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:12,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:12,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:12,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:12,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:12,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:12,568 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:12,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:55:12,586 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:55:12,588 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 84 states, 82 states have (on average 2.2439024390243905) internal successors, (in total 184), 83 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:12,664 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 84 states, 82 states have (on average 2.2439024390243905) internal successors, (in total 184), 83 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 296 states and 699 transitions. Complement of second has 6 states. [2025-04-26 16:55:12,669 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:55:12,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:12,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2025-04-26 16:55:12,678 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:55:12,682 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:12,682 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:55:12,682 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:12,682 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:55:12,682 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:12,682 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 296 states and 699 transitions. [2025-04-26 16:55:12,694 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 70 [2025-04-26 16:55:12,701 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 296 states to 196 states and 509 transitions. [2025-04-26 16:55:12,702 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 113 [2025-04-26 16:55:12,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 150 [2025-04-26 16:55:12,706 INFO L74 IsDeterministic]: Start isDeterministic. Operand 196 states and 509 transitions. [2025-04-26 16:55:12,706 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:12,706 INFO L218 hiAutomatonCegarLoop]: Abstraction has 196 states and 509 transitions. [2025-04-26 16:55:12,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 509 transitions. [2025-04-26 16:55:12,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 138. [2025-04-26 16:55:12,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 138 states have (on average 2.7681159420289854) internal successors, (in total 382), 137 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:12,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 382 transitions. [2025-04-26 16:55:12,736 INFO L240 hiAutomatonCegarLoop]: Abstraction has 138 states and 382 transitions. [2025-04-26 16:55:12,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:55:12,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:55:12,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:55:12,739 INFO L87 Difference]: Start difference. First operand 138 states and 382 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (in total 4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:12,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:55:12,768 INFO L93 Difference]: Finished difference Result 145 states and 327 transitions. [2025-04-26 16:55:12,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 145 states and 327 transitions. [2025-04-26 16:55:12,770 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 70 [2025-04-26 16:55:12,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 145 states to 115 states and 270 transitions. [2025-04-26 16:55:12,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 115 [2025-04-26 16:55:12,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 115 [2025-04-26 16:55:12,772 INFO L74 IsDeterministic]: Start isDeterministic. Operand 115 states and 270 transitions. [2025-04-26 16:55:12,772 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:55:12,772 INFO L218 hiAutomatonCegarLoop]: Abstraction has 115 states and 270 transitions. [2025-04-26 16:55:12,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 270 transitions. [2025-04-26 16:55:12,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 91. [2025-04-26 16:55:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 2.4945054945054945) internal successors, (in total 227), 90 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:12,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 227 transitions. [2025-04-26 16:55:12,778 INFO L240 hiAutomatonCegarLoop]: Abstraction has 91 states and 227 transitions. [2025-04-26 16:55:12,781 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:55:12,782 INFO L438 stractBuchiCegarLoop]: Abstraction has 91 states and 227 transitions. [2025-04-26 16:55:12,782 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:55:12,782 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 227 transitions. [2025-04-26 16:55:12,783 INFO L131 ngComponentsAnalysis]: Automaton has 23 accepting balls. 54 [2025-04-26 16:55:12,783 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:12,783 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:12,783 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:55:12,783 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:12,783 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[]" "[90] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[84] L64-1-->L45: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-04-26 16:55:12,783 INFO L754 eck$LassoCheckResult]: Loop: "[76] L45-->L38: Formula: v_v_assert_3 InVars {v_assert=v_v_assert_3} OutVars{v_assert=v_v_assert_3} AuxVars[] AssignedVars[]" "[78] L38-->L45: Formula: (and (< 0 v_c2_12) (= (+ v_c2_11 1) v_c2_12) (= (+ v_pos_27 1) v_pos_28)) InVars {pos=v_pos_28, c2=v_c2_12} OutVars{pos=v_pos_27, c2=v_c2_11} AuxVars[] AssignedVars[c2, pos]" [2025-04-26 16:55:12,784 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:12,784 INFO L85 PathProgramCache]: Analyzing trace with hash 93208, now seen corresponding path program 1 times [2025-04-26 16:55:12,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:12,784 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139164811] [2025-04-26 16:55:12,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:12,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:12,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:55:12,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:55:12,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:12,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:12,789 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:12,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:55:12,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:55:12,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:12,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:12,796 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:12,796 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:12,796 INFO L85 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 1 times [2025-04-26 16:55:12,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:12,796 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895671301] [2025-04-26 16:55:12,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:12,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:12,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:12,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:12,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:12,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:12,804 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:12,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:12,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:12,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:12,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:12,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:12,808 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:12,808 INFO L85 PathProgramCache]: Analyzing trace with hash 89575322, now seen corresponding path program 1 times [2025-04-26 16:55:12,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:12,808 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895295226] [2025-04-26 16:55:12,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:12,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:12,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:12,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:12,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:12,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:12,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:55:12,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:55:12,855 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895295226] [2025-04-26 16:55:12,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895295226] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:55:12,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:55:12,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-26 16:55:12,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453916105] [2025-04-26 16:55:12,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:55:12,879 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:12,879 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:12,879 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:12,879 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:12,879 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:55:12,879 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,879 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:12,879 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:12,879 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:55:12,879 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:12,879 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:12,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:12,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:12,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:12,911 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:12,911 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:55:12,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,913 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 16:55:12,915 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 16:55:12,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:12,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,932 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:12,932 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite v_assert 1 0)_3=1} Honda state: {v_rep(ite v_assert 1 0)_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:12,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:12,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,940 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 16:55:12,941 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 16:55:12,942 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:12,942 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-04-26 16:55:12,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:12,962 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 16:55:12,963 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 16:55:12,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:12,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:12,986 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:55:12,990 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 16:55:12,990 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:12,990 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:12,990 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:12,990 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:12,991 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:12,991 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:12,991 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:12,991 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:12,991 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:55:12,991 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:12,991 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:12,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:12,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:12,999 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,024 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:13,024 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:13,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,026 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 16:55:13,027 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 16:55:13,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:55:13,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:13,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:13,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:13,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:13,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:13,038 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:13,038 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:13,040 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:13,045 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 16:55:13,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,048 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 16:55:13,049 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 16:55:13,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:55:13,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:13,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:13,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:13,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:13,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:13,060 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:13,060 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:13,062 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:13,063 INFO L436 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-04-26 16:55:13,064 INFO L437 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:55:13,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,066 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 16:55:13,066 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 16:55:13,067 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:13,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-04-26 16:55:13,071 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:55:13,072 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:13,072 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(c2) = 1*c2 Supporting invariants [] [2025-04-26 16:55:13,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-04-26 16:55:13,079 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:13,089 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:13,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:55:13,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:55:13,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:13,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:13,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:13,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:13,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:13,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:13,106 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:13,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:55:13,109 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:55:13,109 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 91 states and 227 transitions. cyclomatic complexity: 159 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 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 16:55:13,135 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 91 states and 227 transitions. cyclomatic complexity: 159. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 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 313 states and 844 transitions. Complement of second has 5 states. [2025-04-26 16:55:13,136 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:55:13,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 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 16:55:13,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2025-04-26 16:55:13,137 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:55:13,137 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:13,137 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:55:13,137 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:13,137 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:55:13,137 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:13,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 313 states and 844 transitions. [2025-04-26 16:55:13,143 INFO L131 ngComponentsAnalysis]: Automaton has 37 accepting balls. 82 [2025-04-26 16:55:13,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 313 states to 283 states and 770 transitions. [2025-04-26 16:55:13,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 172 [2025-04-26 16:55:13,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 214 [2025-04-26 16:55:13,147 INFO L74 IsDeterministic]: Start isDeterministic. Operand 283 states and 770 transitions. [2025-04-26 16:55:13,147 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:13,147 INFO L218 hiAutomatonCegarLoop]: Abstraction has 283 states and 770 transitions. [2025-04-26 16:55:13,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states and 770 transitions. [2025-04-26 16:55:13,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 215. [2025-04-26 16:55:13,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 215 states have (on average 2.902325581395349) internal successors, (in total 624), 214 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:13,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 624 transitions. [2025-04-26 16:55:13,158 INFO L240 hiAutomatonCegarLoop]: Abstraction has 215 states and 624 transitions. [2025-04-26 16:55:13,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:55:13,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:55:13,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:55:13,158 INFO L87 Difference]: Start difference. First operand 215 states and 624 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (in total 5), 2 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 16:55:13,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:55:13,185 INFO L93 Difference]: Finished difference Result 226 states and 552 transitions. [2025-04-26 16:55:13,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 552 transitions. [2025-04-26 16:55:13,188 INFO L131 ngComponentsAnalysis]: Automaton has 37 accepting balls. 82 [2025-04-26 16:55:13,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 176 states and 432 transitions. [2025-04-26 16:55:13,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 176 [2025-04-26 16:55:13,190 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 176 [2025-04-26 16:55:13,190 INFO L74 IsDeterministic]: Start isDeterministic. Operand 176 states and 432 transitions. [2025-04-26 16:55:13,192 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:55:13,192 INFO L218 hiAutomatonCegarLoop]: Abstraction has 176 states and 432 transitions. [2025-04-26 16:55:13,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states and 432 transitions. [2025-04-26 16:55:13,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 142. [2025-04-26 16:55:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 142 states have (on average 2.5704225352112675) internal successors, (in total 365), 141 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:13,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 365 transitions. [2025-04-26 16:55:13,197 INFO L240 hiAutomatonCegarLoop]: Abstraction has 142 states and 365 transitions. [2025-04-26 16:55:13,197 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:55:13,197 INFO L438 stractBuchiCegarLoop]: Abstraction has 142 states and 365 transitions. [2025-04-26 16:55:13,198 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:55:13,198 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 365 transitions. [2025-04-26 16:55:13,199 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 70 [2025-04-26 16:55:13,199 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:13,199 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:13,199 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:55:13,199 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:13,199 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[]" "[90] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[74] L18-->L25: Formula: (and (= (+ v_c1_16 1) v_c1_15) (= (+ v_pos_20 1) v_pos_19)) InVars {pos=v_pos_20, c1=v_c1_16} OutVars{pos=v_pos_19, c1=v_c1_15} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:55:13,199 INFO L754 eck$LassoCheckResult]: Loop: "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[73] L18-->L25: Formula: (and (= (+ v_c1_11 1) v_c1_12) (< 0 v_c1_12) (= v_pos_16 (+ v_pos_15 1))) InVars {pos=v_pos_16, c1=v_c1_12} OutVars{pos=v_pos_15, c1=v_c1_11} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:55:13,200 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:13,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2889119, now seen corresponding path program 1 times [2025-04-26 16:55:13,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:13,200 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611672256] [2025-04-26 16:55:13,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:13,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:13,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:55:13,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:55:13,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,204 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:13,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:55:13,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:55:13,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,208 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:13,208 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:13,208 INFO L85 PathProgramCache]: Analyzing trace with hash 3235, now seen corresponding path program 2 times [2025-04-26 16:55:13,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:13,209 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304749111] [2025-04-26 16:55:13,209 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:55:13,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:13,213 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:13,215 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:13,215 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:55:13,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,216 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:13,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:13,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:13,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:13,218 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:13,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1518521663, now seen corresponding path program 1 times [2025-04-26 16:55:13,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:13,218 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24230658] [2025-04-26 16:55:13,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:13,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:13,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:55:13,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:55:13,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,222 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:13,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:55:13,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:55:13,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:13,247 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:13,247 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:13,247 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:13,247 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:13,247 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:55:13,247 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,247 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:13,247 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:13,247 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:55:13,247 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:13,247 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:13,248 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,255 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,276 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:13,276 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:55:13,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,278 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 16:55:13,280 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 16:55:13,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:13,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:13,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-04-26 16:55:13,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,300 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 16:55:13,301 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 16:55:13,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:13,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:13,328 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:55:13,351 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 16:55:13,351 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:13,351 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:13,351 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:13,351 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:13,351 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:13,351 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,352 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:13,352 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:13,352 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:55:13,352 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:13,352 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:13,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,397 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:13,397 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:13,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,399 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 16:55:13,400 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 16:55:13,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:55:13,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:13,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:13,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:13,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:13,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:13,412 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:13,412 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:13,417 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:13,420 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:55:13,420 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:55:13,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,423 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 16:55:13,424 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 16:55:13,426 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:13,428 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:55:13,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:13,430 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:55:13,430 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:13,430 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(c1) = 1*c1 Supporting invariants [] [2025-04-26 16:55:13,436 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 16:55:13,436 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:13,449 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:13,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:55:13,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:55:13,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:13,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:13,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:13,463 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:13,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:13,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:13,465 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:13,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:13,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:55:13,467 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:55:13,468 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 142 states and 365 transitions. cyclomatic complexity: 254 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:13,495 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 142 states and 365 transitions. cyclomatic complexity: 254. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 468 states and 1274 transitions. Complement of second has 5 states. [2025-04-26 16:55:13,496 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:55:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:13,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2025-04-26 16:55:13,497 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:55:13,497 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:13,497 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:55:13,497 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:13,497 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 4 letters. Loop has 4 letters. [2025-04-26 16:55:13,497 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:13,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 468 states and 1274 transitions. [2025-04-26 16:55:13,505 INFO L131 ngComponentsAnalysis]: Automaton has 51 accepting balls. 110 [2025-04-26 16:55:13,511 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 468 states to 424 states and 1154 transitions. [2025-04-26 16:55:13,511 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 295 [2025-04-26 16:55:13,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 355 [2025-04-26 16:55:13,513 INFO L74 IsDeterministic]: Start isDeterministic. Operand 424 states and 1154 transitions. [2025-04-26 16:55:13,513 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:13,514 INFO L218 hiAutomatonCegarLoop]: Abstraction has 424 states and 1154 transitions. [2025-04-26 16:55:13,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states and 1154 transitions. [2025-04-26 16:55:13,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 280. [2025-04-26 16:55:13,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 280 states have (on average 3.1107142857142858) internal successors, (in total 871), 279 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 871 transitions. [2025-04-26 16:55:13,537 INFO L240 hiAutomatonCegarLoop]: Abstraction has 280 states and 871 transitions. [2025-04-26 16:55:13,537 INFO L438 stractBuchiCegarLoop]: Abstraction has 280 states and 871 transitions. [2025-04-26 16:55:13,537 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:55:13,537 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 280 states and 871 transitions. [2025-04-26 16:55:13,539 INFO L131 ngComponentsAnalysis]: Automaton has 35 accepting balls. 78 [2025-04-26 16:55:13,540 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:13,540 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:13,541 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:55:13,541 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:13,541 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[]" "[90] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[84] L64-1-->L45: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[76] L45-->L38: Formula: v_v_assert_3 InVars {v_assert=v_v_assert_3} OutVars{v_assert=v_v_assert_3} AuxVars[] AssignedVars[]" "[79] L38-->L45: Formula: (and (= (+ v_c2_16 1) v_c2_15) (= v_pos_31 (+ v_pos_32 1))) InVars {pos=v_pos_32, c2=v_c2_16} OutVars{pos=v_pos_31, c2=v_c2_15} AuxVars[] AssignedVars[c2, pos]" [2025-04-26 16:55:13,541 INFO L754 eck$LassoCheckResult]: Loop: "[76] L45-->L38: Formula: v_v_assert_3 InVars {v_assert=v_v_assert_3} OutVars{v_assert=v_v_assert_3} AuxVars[] AssignedVars[]" "[78] L38-->L45: Formula: (and (< 0 v_c2_12) (= (+ v_c2_11 1) v_c2_12) (= (+ v_pos_27 1) v_pos_28)) InVars {pos=v_pos_28, c2=v_c2_12} OutVars{pos=v_pos_27, c2=v_c2_11} AuxVars[] AssignedVars[c2, pos]" [2025-04-26 16:55:13,541 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:13,542 INFO L85 PathProgramCache]: Analyzing trace with hash 89575323, now seen corresponding path program 1 times [2025-04-26 16:55:13,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:13,542 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992905228] [2025-04-26 16:55:13,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:13,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:13,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:13,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:13,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,546 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:13,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:13,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:13,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:13,555 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:13,555 INFO L85 PathProgramCache]: Analyzing trace with hash 3395, now seen corresponding path program 2 times [2025-04-26 16:55:13,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:13,555 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412639027] [2025-04-26 16:55:13,555 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:55:13,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:13,558 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:13,560 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:13,560 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:55:13,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,560 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:13,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:13,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:13,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:13,565 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:13,565 INFO L85 PathProgramCache]: Analyzing trace with hash 182541917, now seen corresponding path program 1 times [2025-04-26 16:55:13,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:13,565 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108738719] [2025-04-26 16:55:13,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:13,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:13,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:55:13,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:55:13,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,572 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:13,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:55:13,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:55:13,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:13,604 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:13,604 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:13,604 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:13,604 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:13,604 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:55:13,604 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,604 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:13,604 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:13,604 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration4_Loop [2025-04-26 16:55:13,604 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:13,604 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:13,605 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,613 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,651 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:13,651 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:55:13,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,655 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 16:55:13,655 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 16:55:13,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:13,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:13,676 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 16:55:13,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,678 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 16:55:13,679 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 16:55:13,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:13,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:13,701 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:55:13,705 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 16:55:13,705 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:13,705 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:13,705 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:13,705 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:13,705 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:13,705 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,705 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:13,705 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:13,705 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration4_Loop [2025-04-26 16:55:13,705 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:13,705 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:13,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,711 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,714 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,738 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:13,738 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:13,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,741 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 16:55:13,741 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 16:55:13,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:55:13,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:13,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:13,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:13,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:13,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:13,753 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:13,754 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:13,755 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:13,757 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:55:13,757 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:55:13,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,759 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 16:55:13,760 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 16:55:13,761 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:13,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-04-26 16:55:13,765 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:55:13,765 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:13,765 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(c2) = 1*c2 Supporting invariants [] [2025-04-26 16:55:13,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:13,771 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:13,784 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:13,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:13,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:13,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:13,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:13,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:13,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:13,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:13,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:13,799 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:13,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:13,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:55:13,802 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:55:13,802 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 280 states and 871 transitions. cyclomatic complexity: 645 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:13,842 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 280 states and 871 transitions. cyclomatic complexity: 645. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 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 895 states and 2710 transitions. Complement of second has 5 states. [2025-04-26 16:55:13,843 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:55:13,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:13,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2025-04-26 16:55:13,844 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:55:13,844 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:13,844 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 7 letters. Loop has 2 letters. [2025-04-26 16:55:13,844 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:13,844 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 5 letters. Loop has 4 letters. [2025-04-26 16:55:13,844 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:13,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 895 states and 2710 transitions. [2025-04-26 16:55:13,856 INFO L131 ngComponentsAnalysis]: Automaton has 55 accepting balls. 118 [2025-04-26 16:55:13,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 895 states to 790 states and 2440 transitions. [2025-04-26 16:55:13,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 428 [2025-04-26 16:55:13,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 484 [2025-04-26 16:55:13,863 INFO L74 IsDeterministic]: Start isDeterministic. Operand 790 states and 2440 transitions. [2025-04-26 16:55:13,863 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:13,863 INFO L218 hiAutomatonCegarLoop]: Abstraction has 790 states and 2440 transitions. [2025-04-26 16:55:13,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states and 2440 transitions. [2025-04-26 16:55:13,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 566. [2025-04-26 16:55:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 566 states have (on average 3.3692579505300353) internal successors, (in total 1907), 565 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:13,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1907 transitions. [2025-04-26 16:55:13,877 INFO L240 hiAutomatonCegarLoop]: Abstraction has 566 states and 1907 transitions. [2025-04-26 16:55:13,877 INFO L438 stractBuchiCegarLoop]: Abstraction has 566 states and 1907 transitions. [2025-04-26 16:55:13,877 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 16:55:13,877 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 566 states and 1907 transitions. [2025-04-26 16:55:13,880 INFO L131 ngComponentsAnalysis]: Automaton has 43 accepting balls. 94 [2025-04-26 16:55:13,881 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:13,881 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:13,881 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2025-04-26 16:55:13,881 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:13,881 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[]" "[90] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[74] L18-->L25: Formula: (and (= (+ v_c1_16 1) v_c1_15) (= (+ v_pos_20 1) v_pos_19)) InVars {pos=v_pos_20, c1=v_c1_16} OutVars{pos=v_pos_19, c1=v_c1_15} AuxVars[] AssignedVars[c1, pos]" "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[74] L18-->L25: Formula: (and (= (+ v_c1_16 1) v_c1_15) (= (+ v_pos_20 1) v_pos_19)) InVars {pos=v_pos_20, c1=v_c1_16} OutVars{pos=v_pos_19, c1=v_c1_15} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:55:13,881 INFO L754 eck$LassoCheckResult]: Loop: "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[73] L18-->L25: Formula: (and (= (+ v_c1_11 1) v_c1_12) (< 0 v_c1_12) (= v_pos_16 (+ v_pos_15 1))) InVars {pos=v_pos_16, c1=v_c1_12} OutVars{pos=v_pos_15, c1=v_c1_11} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:55:13,881 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:13,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1518521662, now seen corresponding path program 2 times [2025-04-26 16:55:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:13,882 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777309091] [2025-04-26 16:55:13,882 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:55:13,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:13,884 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 6 statements into 2 equivalence classes. [2025-04-26 16:55:13,886 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:55:13,886 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-26 16:55:13,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,886 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:13,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:55:13,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:55:13,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:13,889 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:13,889 INFO L85 PathProgramCache]: Analyzing trace with hash 3235, now seen corresponding path program 3 times [2025-04-26 16:55:13,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:13,889 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426257730] [2025-04-26 16:55:13,889 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-26 16:55:13,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:13,895 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:13,896 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:13,896 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-26 16:55:13,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,896 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:13,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:13,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:13,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:13,898 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:13,898 INFO L85 PathProgramCache]: Analyzing trace with hash 989565732, now seen corresponding path program 2 times [2025-04-26 16:55:13,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:13,898 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161436101] [2025-04-26 16:55:13,898 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:55:13,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:13,900 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 2 equivalence classes. [2025-04-26 16:55:13,902 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:55:13,902 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-26 16:55:13,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,902 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:13,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:55:13,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:55:13,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:13,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:13,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:13,935 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:13,935 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:13,935 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:13,935 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:13,935 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:55:13,935 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,935 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:13,935 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:13,935 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration5_Loop [2025-04-26 16:55:13,935 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:13,935 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:13,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,940 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:13,959 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:13,960 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:55:13,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,962 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 16:55:13,963 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 16:55:13,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:13,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:13,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-04-26 16:55:13,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:13,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:13,983 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 16:55:13,984 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 16:55:13,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:13,984 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,007 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:14,008 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {pos=0} Honda state: {pos=0} Generalized eigenvectors: [{pos=7}, {pos=-8}, {pos=0}] Lambdas: [1, 1, 0] Nus: [0, 0] [2025-04-26 16:55:14,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-04-26 16:55:14,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,015 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 16:55:14,016 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 16:55:14,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:14,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-04-26 16:55:14,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,035 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 16:55:14,036 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 16:55:14,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:14,037 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,058 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:55:14,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-04-26 16:55:14,063 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:14,063 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:14,063 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:14,063 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:14,063 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:14,063 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,063 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:14,063 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:14,063 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration5_Loop [2025-04-26 16:55:14,063 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:14,063 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:14,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:14,070 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:14,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:14,093 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:14,093 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:14,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,095 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 16:55:14,095 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 16:55:14,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:55:14,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:14,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:14,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:14,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:14,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:14,108 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:14,108 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:14,109 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:14,115 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 16:55:14,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,116 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 16:55:14,117 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 16:55:14,118 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:55:14,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:14,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:14,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:14,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:14,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:14,128 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:14,128 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:14,130 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:14,131 INFO L436 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-04-26 16:55:14,131 INFO L437 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:55:14,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,133 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 16:55:14,135 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 16:55:14,136 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:14,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-04-26 16:55:14,139 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:55:14,139 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:14,140 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(c1) = 1*c1 Supporting invariants [] [2025-04-26 16:55:14,146 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 16:55:14,146 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:14,158 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:14,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:55:14,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:55:14,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:14,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:14,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:14,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:14,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:14,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:14,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:14,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:14,180 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:14,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:55:14,182 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:55:14,182 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 566 states and 1907 transitions. cyclomatic complexity: 1439 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:14,227 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 566 states and 1907 transitions. cyclomatic complexity: 1439. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 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 1407 states and 4387 transitions. Complement of second has 5 states. [2025-04-26 16:55:14,227 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:55:14,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2025-04-26 16:55:14,228 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:55:14,228 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:14,228 INFO L699 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-04-26 16:55:14,242 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:14,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:55:14,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:55:14,248 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:14,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:14,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:14,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:14,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:14,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:14,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:14,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:14,259 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:14,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:55:14,261 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:55:14,261 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 566 states and 1907 transitions. cyclomatic complexity: 1439 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:14,293 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 566 states and 1907 transitions. cyclomatic complexity: 1439. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 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 1407 states and 4387 transitions. Complement of second has 5 states. [2025-04-26 16:55:14,294 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:55:14,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:14,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2025-04-26 16:55:14,294 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:55:14,294 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:14,294 INFO L699 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-04-26 16:55:14,303 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:14,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:55:14,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:55:14,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:14,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:14,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:14,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:14,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:14,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:14,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:14,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:14,317 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:14,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:14,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:55:14,319 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:55:14,319 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 566 states and 1907 transitions. cyclomatic complexity: 1439 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:14,365 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 566 states and 1907 transitions. cyclomatic complexity: 1439. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 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 1578 states and 5307 transitions. Complement of second has 4 states. [2025-04-26 16:55:14,365 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:55:14,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:14,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2025-04-26 16:55:14,366 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:55:14,367 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:14,367 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 8 letters. Loop has 2 letters. [2025-04-26 16:55:14,367 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:14,367 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 6 letters. Loop has 4 letters. [2025-04-26 16:55:14,367 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:14,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1578 states and 5307 transitions. [2025-04-26 16:55:14,385 INFO L131 ngComponentsAnalysis]: Automaton has 51 accepting balls. 196 [2025-04-26 16:55:14,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1578 states to 1084 states and 3519 transitions. [2025-04-26 16:55:14,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 411 [2025-04-26 16:55:14,398 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 550 [2025-04-26 16:55:14,398 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1084 states and 3519 transitions. [2025-04-26 16:55:14,398 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:14,398 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1084 states and 3519 transitions. [2025-04-26 16:55:14,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states and 3519 transitions. [2025-04-26 16:55:14,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 416. [2025-04-26 16:55:14,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 416 states have (on average 3.362980769230769) internal successors, (in total 1399), 415 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:14,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 1399 transitions. [2025-04-26 16:55:14,410 INFO L240 hiAutomatonCegarLoop]: Abstraction has 416 states and 1399 transitions. [2025-04-26 16:55:14,410 INFO L438 stractBuchiCegarLoop]: Abstraction has 416 states and 1399 transitions. [2025-04-26 16:55:14,410 INFO L340 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-04-26 16:55:14,411 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 416 states and 1399 transitions. [2025-04-26 16:55:14,413 INFO L131 ngComponentsAnalysis]: Automaton has 35 accepting balls. 152 [2025-04-26 16:55:14,413 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:14,413 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:14,413 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:55:14,413 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:14,413 INFO L752 eck$LassoCheckResult]: Stem: "[63] $Ultimate##0-->L64: Formula: (and (= v_c1_6 v_pos_9) (= v_pos_9 0) v_v_assert_5 (= v_c2_6 v_pos_9)) InVars {pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} OutVars{pos=v_pos_9, c1=v_c1_6, v_assert=v_v_assert_5, c2=v_c2_6} AuxVars[] AssignedVars[]" "[90] L64-->L25: Formula: (= 1 v_thread1Thread1of1ForFork2_thidvar0_2) InVars {} OutVars{thread1Thread1of1ForFork2_thidvar0=v_thread1Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork2_thidvar0]" "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[74] L18-->L25: Formula: (and (= (+ v_c1_16 1) v_c1_15) (= (+ v_pos_20 1) v_pos_19)) InVars {pos=v_pos_20, c1=v_c1_16} OutVars{pos=v_pos_19, c1=v_c1_15} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:55:14,413 INFO L754 eck$LassoCheckResult]: Loop: "[71] L25-->L18: Formula: v_v_assert_1 InVars {v_assert=v_v_assert_1} OutVars{v_assert=v_v_assert_1} AuxVars[] AssignedVars[]" "[74] L18-->L25: Formula: (and (= (+ v_c1_16 1) v_c1_15) (= (+ v_pos_20 1) v_pos_19)) InVars {pos=v_pos_20, c1=v_c1_16} OutVars{pos=v_pos_19, c1=v_c1_15} AuxVars[] AssignedVars[c1, pos]" [2025-04-26 16:55:14,413 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:14,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2889119, now seen corresponding path program 3 times [2025-04-26 16:55:14,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:14,414 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246951528] [2025-04-26 16:55:14,414 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-26 16:55:14,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:14,415 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:55:14,417 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:55:14,417 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-26 16:55:14,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:14,417 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:14,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:55:14,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:55:14,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:14,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:14,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:14,424 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:14,424 INFO L85 PathProgramCache]: Analyzing trace with hash 3236, now seen corresponding path program 1 times [2025-04-26 16:55:14,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:14,424 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110699703] [2025-04-26 16:55:14,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:14,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:14,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:14,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:14,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:14,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:14,429 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:14,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:14,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:14,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:14,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:14,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:14,431 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:14,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1518521662, now seen corresponding path program 4 times [2025-04-26 16:55:14,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:14,431 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484079325] [2025-04-26 16:55:14,431 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-26 16:55:14,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:14,436 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 6 statements into 2 equivalence classes. [2025-04-26 16:55:14,438 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:55:14,438 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-26 16:55:14,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:14,438 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:14,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:55:14,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:55:14,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:14,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:14,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:14,455 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:14,455 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:14,455 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:14,455 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:14,455 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:55:14,455 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,456 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:14,456 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:14,456 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration6_Loop [2025-04-26 16:55:14,456 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:14,456 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:14,456 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:14,460 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:14,462 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:14,486 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:14,486 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:55:14,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,488 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 16:55:14,490 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 16:55:14,491 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:14,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,507 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 16:55:14,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,509 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 16:55:14,511 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 16:55:14,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:14,512 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,536 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:14,536 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {pos=0} Honda state: {pos=0} Generalized eigenvectors: [{pos=-3}, {pos=2}, {pos=2}] Lambdas: [1, 0, 1] Nus: [0, 1] [2025-04-26 16:55:14,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:14,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,545 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 16:55:14,546 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 16:55:14,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:14,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,565 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:14,565 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite v_assert 1 0)_11=1} Honda state: {v_rep(ite v_assert 1 0)_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:14,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:14,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,573 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 16:55:14,574 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 16:55:14,576 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:14,576 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,595 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 16:55:14,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,598 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 16:55:14,598 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 16:55:14,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:14,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,627 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:14,627 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c1=0} Honda state: {c1=0} Generalized eigenvectors: [{c1=3}, {c1=3}, {c1=-5}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 16:55:14,633 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 16:55:14,666 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:14,666 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:14,666 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:14,666 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:14,666 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:55:14,666 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,666 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:14,666 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:14,666 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-5.wvr.bpl_petrified1_Iteration6_Lasso [2025-04-26 16:55:14,666 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:14,666 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:14,667 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:14,669 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:14,671 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:14,676 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:14,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:14,724 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:14,725 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:55:14,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,728 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:14,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-04-26 16:55:14,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:14,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,748 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:14,748 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c2=0} Honda state: {c2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:14,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2025-04-26 16:55:14,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,757 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:14,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2025-04-26 16:55:14,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:14,759 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,778 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:14,778 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite v_assert 1 0)_12=1} Honda state: {v_rep(ite v_assert 1 0)_12=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:14,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2025-04-26 16:55:14,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,786 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:14,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2025-04-26 16:55:14,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:14,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2025-04-26 16:55:14,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,809 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:14,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2025-04-26 16:55:14,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:14,810 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,833 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:14,833 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {pos=0} Honda state: {pos=1} Generalized eigenvectors: [{pos=-3}, {pos=2}, {pos=2}] Lambdas: [1, 0, 1] Nus: [0, 1] [2025-04-26 16:55:14,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2025-04-26 16:55:14,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,840 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:14,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2025-04-26 16:55:14,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:14,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,854 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:14,854 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork2_thidvar0=0} Honda state: {thread1Thread1of1ForFork2_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:14,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2025-04-26 16:55:14,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,862 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:14,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2025-04-26 16:55:14,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:14,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2025-04-26 16:55:14,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:14,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:14,889 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:14,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2025-04-26 16:55:14,891 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:14,891 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:14,915 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:14,916 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c1=0} Honda state: {c1=1} Generalized eigenvectors: [{c1=3}, {c1=3}, {c1=-5}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-04-26 16:55:14,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2025-04-26 16:55:14,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-26 16:55:14,942 INFO L201 PluginConnector]: Adding new model misc-5.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:55:14 BoogieIcfgContainer [2025-04-26 16:55:14,942 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:55:14,943 INFO L158 Benchmark]: Toolchain (without parser) took 3625.12ms. Allocated memory was 159.4MB in the beginning and 142.6MB in the end (delta: -16.8MB). Free memory was 88.2MB in the beginning and 63.7MB in the end (delta: 24.4MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. [2025-04-26 16:55:14,943 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:14,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.23ms. Allocated memory is still 159.4MB. Free memory was 88.2MB in the beginning and 84.9MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:14,943 INFO L158 Benchmark]: Boogie Preprocessor took 22.37ms. Allocated memory is still 159.4MB. Free memory was 84.9MB in the beginning and 83.8MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:55:14,943 INFO L158 Benchmark]: RCFGBuilder took 170.49ms. Allocated memory is still 159.4MB. Free memory was 83.8MB in the beginning and 74.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:55:14,944 INFO L158 Benchmark]: BuchiAutomizer took 3396.19ms. Allocated memory was 159.4MB in the beginning and 142.6MB in the end (delta: -16.8MB). Free memory was 73.8MB in the beginning and 63.7MB in the end (delta: 10.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:14,944 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.23ms. Allocated memory is still 159.4MB. Free memory was 88.2MB in the beginning and 84.9MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 22.37ms. Allocated memory is still 159.4MB. Free memory was 84.9MB in the beginning and 83.8MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 170.49ms. Allocated memory is still 159.4MB. Free memory was 83.8MB in the beginning and 74.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 3396.19ms. Allocated memory was 159.4MB in the beginning and 142.6MB in the end (delta: -16.8MB). Free memory was 73.8MB in the beginning and 63.7MB in the end (delta: 10.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 1220 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 207 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 190 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 125 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT3 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 5 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.2s InitialAbstraction: Time to compute Ample Reduction [ms]: 249, Number of transitions in reduction automaton: 184, Number of states in reduction automaton: 84, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (2 trivial, 4 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function c1 and consists of 4 locations. One deterministic module has affine ranking function c2 and consists of 3 locations. One deterministic module has affine ranking function c1 and consists of 3 locations. One deterministic module has affine ranking function c2 and consists of 3 locations. One nondeterministic module has affine ranking function c1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 416 locations. - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {c1=0, c2=0, freshIdentifier7=0, (if v_assert then 1 else 0)=1, pos=0} State at position 1 is {c1=1, c2=0, freshIdentifier8=1, (if v_assert then 1 else 0)=1, pos=1} For i>1, the state at position i is {c1=1 + sum_{k=0}^i 3*0^k + 3 + 3*k*0^(k-1) + -5, c2=0 + sum_{k=0}^i 0, freshIdentifier9=1 + sum_{k=0}^i 0, (if v_assert then 1 else 0)=1 + sum_{k=0}^i 0, pos=1 + sum_{k=0}^i -3 + 2*0^k + 2 + 2*k*0^(k-1)} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 6GEVs Lambdas: [1, 0, 1, 0, 1, 1] Mus: [0, 1, 0, 1, 0] - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L63] 0 assume (pos == c1 && pos == c2 && pos == 0) && v_assert == true; [L64] FORK 0 fork 1 thread1(); [L17] COND TRUE 1 v_assert [L20] 1 pos := pos + 1; [L21] 1 c1 := c1 + 1; Loop: [L17] COND TRUE v_assert [L20] pos := pos + 1; [L21] c1 := c1 + 1; End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2025-04-26 16:55:14,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...