/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-2-unrolled.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:55:07,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:55:07,762 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:55:07,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:55:07,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:55:07,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:55:07,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:55:07,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:55:07,787 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:55:07,787 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:55:07,789 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:55:07,789 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:55:07,789 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:55:07,789 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:55:07,789 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:55:07,789 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:55:07,789 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:55:07,789 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:55:07,789 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:55:07,789 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:55:07,790 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:55:07,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:55:07,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:55:07,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:55:07,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:55:07,791 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:55:07,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:55:07,791 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:55:07,791 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:55:07,791 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:55:07,791 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:55:08,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:55:08,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:55:08,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:55:08,011 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:55:08,012 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:55:08,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl [2025-04-26 16:55:08,015 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl' [2025-04-26 16:55:08,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:55:08,031 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:55:08,032 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:55:08,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:55:08,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:55:08,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/1) ... [2025-04-26 16:55:08,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/1) ... [2025-04-26 16:55:08,061 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:55:08,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:55:08,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:55:08,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:55:08,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:55:08,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/1) ... [2025-04-26 16:55:08,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/1) ... [2025-04-26 16:55:08,067 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/1) ... [2025-04-26 16:55:08,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/1) ... [2025-04-26 16:55:08,069 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/1) ... [2025-04-26 16:55:08,070 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/1) ... [2025-04-26 16:55:08,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/1) ... [2025-04-26 16:55:08,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/1) ... [2025-04-26 16:55:08,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/1) ... [2025-04-26 16:55:08,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:55:08,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:55:08,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:55:08,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:55:08,082 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/1) ... [2025-04-26 16:55:08,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:55:08,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,103 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 16:55:08,105 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 16:55:08,126 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:55:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:55:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:55:08,126 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:55:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:55:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:55:08,126 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:55:08,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:55:08,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:55:08,127 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 16:55:08,159 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:55:08,160 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:55:08,227 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:55:08,228 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:55:08,234 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:55:08,235 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:55:08,235 INFO L201 PluginConnector]: Adding new model misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:55:08 BoogieIcfgContainer [2025-04-26 16:55:08,235 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:55:08,236 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:55:08,236 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:55:08,239 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:55:08,240 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:55:08,240 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:08" (1/2) ... [2025-04-26 16:55:08,241 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f4f9926 and model type misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:55:08, skipping insertion in model container [2025-04-26 16:55:08,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:55:08,241 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:55:08" (2/2) ... [2025-04-26 16:55:08,242 INFO L376 chiAutomizerObserver]: Analyzing ICFG misc-2-unrolled.wvr.bpl [2025-04-26 16:55:08,285 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:55:08,322 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:55:08,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:55:08,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,324 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 16:55:08,325 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 16:55:08,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 68 flow [2025-04-26 16:55:08,379 INFO L116 PetriNetUnfolderBase]: 2/23 cut-off events. [2025-04-26 16:55:08,383 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:55:08,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 23 events. 2/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2025-04-26 16:55:08,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 68 flow [2025-04-26 16:55:08,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 58 flow [2025-04-26 16:55:08,389 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 28 places, 23 transitions, 58 flow [2025-04-26 16:55:08,393 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 16:55:08,460 WARN L140 AmpleReduction]: Number of pruned transitions: 43 [2025-04-26 16:55:08,460 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 16:55:08,460 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 9 [2025-04-26 16:55:08,460 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:21 [2025-04-26 16:55:08,460 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:39 [2025-04-26 16:55:08,460 WARN L145 AmpleReduction]: Times succ was already a loop node:3 [2025-04-26 16:55:08,460 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:14 [2025-04-26 16:55:08,460 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 16:55:08,463 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 70 states, 68 states have (on average 1.3235294117647058) internal successors, (in total 90), 69 states have internal predecessors, (90), 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 16:55:08,471 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:55:08,471 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:55:08,471 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:55:08,471 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:55:08,472 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:55:08,472 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:55:08,472 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:55:08,472 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:55:08,473 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 68 states have (on average 1.3235294117647058) internal successors, (in total 90), 69 states have internal predecessors, (90), 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 16:55:08,481 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 55 [2025-04-26 16:55:08,481 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:08,482 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:08,484 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:55:08,484 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-04-26 16:55:08,484 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:55:08,484 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 70 states, 68 states have (on average 1.3235294117647058) internal successors, (in total 90), 69 states have internal predecessors, (90), 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 16:55:08,486 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 55 [2025-04-26 16:55:08,486 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:08,486 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:08,486 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:55:08,486 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-04-26 16:55:08,490 INFO L752 eck$LassoCheckResult]: Stem: "[46] $Ultimate##0-->L40: Formula: (and (= v_i1_7 v_pos_9) (= v_i2_7 v_pos_9) (= v_pos_9 0)) InVars {i1=v_i1_7, pos=v_pos_9, i2=v_i2_7} OutVars{i1=v_i1_7, pos=v_pos_9, i2=v_i2_7} AuxVars[] AssignedVars[]" "[68] L40-->L17: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:55:08,490 INFO L754 eck$LassoCheckResult]: Loop: "[53] L17-->L18: Formula: (< v_i1_1 (* 2 v_N_1)) InVars {i1=v_i1_1, N=v_N_1} OutVars{i1=v_i1_1, N=v_N_1} AuxVars[] AssignedVars[]" "[55] L18-->L19: Formula: (= (+ v_pos_2 1) v_pos_1) InVars {pos=v_pos_2} OutVars{pos=v_pos_1} AuxVars[] AssignedVars[pos]" "[56] L19-->L20: Formula: (= v_i1_2 (+ v_i1_3 1)) InVars {i1=v_i1_3} OutVars{i1=v_i1_2} AuxVars[] AssignedVars[i1]" "[57] L20-->L21: Formula: (= v_pos_4 (+ v_pos_3 1)) InVars {pos=v_pos_4} OutVars{pos=v_pos_3} AuxVars[] AssignedVars[pos]" "[58] L21-->L17: Formula: (= v_i1_4 (+ v_i1_5 1)) InVars {i1=v_i1_5} OutVars{i1=v_i1_4} AuxVars[] AssignedVars[i1]" [2025-04-26 16:55:08,493 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:08,493 INFO L85 PathProgramCache]: Analyzing trace with hash 2455, now seen corresponding path program 1 times [2025-04-26 16:55:08,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:08,497 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154338134] [2025-04-26 16:55:08,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:08,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:08,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:08,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:08,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:08,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:08,541 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:08,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:08,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:08,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:08,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:08,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:08,555 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:08,555 INFO L85 PathProgramCache]: Analyzing trace with hash 79269910, now seen corresponding path program 1 times [2025-04-26 16:55:08,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:08,555 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626105225] [2025-04-26 16:55:08,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:08,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:08,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:08,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:08,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:08,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:08,562 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:08,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:08,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:08,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:08,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:08,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:08,570 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:08,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1615729728, now seen corresponding path program 1 times [2025-04-26 16:55:08,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:08,570 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234897166] [2025-04-26 16:55:08,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:08,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:08,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:55:08,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:55:08,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:08,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:08,585 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:08,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:55:08,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:55:08,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:08,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:08,597 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:08,670 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:08,671 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:08,671 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:08,671 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:08,671 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:55:08,671 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,671 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:08,671 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:08,672 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-2-unrolled.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:55:08,672 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:08,672 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:08,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:08,719 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:08,756 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:08,757 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:55:08,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,760 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 16:55:08,761 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 16:55:08,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:08,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:08,784 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 16:55:08,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,789 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 16:55:08,790 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 16:55:08,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:08,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:08,869 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:55:08,874 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 16:55:08,874 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:08,874 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:08,874 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:08,874 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:08,874 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:08,874 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,874 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:08,874 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:08,874 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-2-unrolled.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:55:08,874 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:08,874 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:08,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:08,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:08,919 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:08,945 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:08,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,948 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 16:55:08,950 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 16:55:08,951 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 16:55:08,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:08,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:08,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:08,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:08,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:08,967 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:08,967 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:08,970 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:08,974 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:55:08,974 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:55:08,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:08,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:08,994 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 16:55:08,995 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 16:55:08,996 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:08,998 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:55:09,000 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 16:55:09,000 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:55:09,001 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:09,001 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i1, N) = -1*i1 + 2*N Supporting invariants [] [2025-04-26 16:55:09,007 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 16:55:09,010 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:09,065 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:09,071 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:09,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:09,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:09,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:09,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:09,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:09,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:09,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:09,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:09,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:09,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:55:09,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:09,147 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 16:55:09,160 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 16:55:09,162 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 70 states, 68 states have (on average 1.3235294117647058) internal successors, (in total 90), 69 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 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 16:55:09,230 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 70 states, 68 states have (on average 1.3235294117647058) internal successors, (in total 90), 69 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 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 138 states and 181 transitions. Complement of second has 7 states. [2025-04-26 16:55:09,232 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:55:09,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 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 16:55:09,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2025-04-26 16:55:09,240 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 5 letters. [2025-04-26 16:55:09,241 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:09,241 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 7 letters. Loop has 5 letters. [2025-04-26 16:55:09,241 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:09,241 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 10 letters. [2025-04-26 16:55:09,241 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:09,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 181 transitions. [2025-04-26 16:55:09,248 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2025-04-26 16:55:09,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 67 states and 86 transitions. [2025-04-26 16:55:09,253 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2025-04-26 16:55:09,253 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2025-04-26 16:55:09,254 INFO L74 IsDeterministic]: Start isDeterministic. Operand 67 states and 86 transitions. [2025-04-26 16:55:09,254 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:09,254 INFO L218 hiAutomatonCegarLoop]: Abstraction has 67 states and 86 transitions. [2025-04-26 16:55:09,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 86 transitions. [2025-04-26 16:55:09,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2025-04-26 16:55:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 64 states have (on average 1.296875) internal successors, (in total 83), 63 states have internal predecessors, (83), 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 16:55:09,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2025-04-26 16:55:09,276 INFO L240 hiAutomatonCegarLoop]: Abstraction has 64 states and 83 transitions. [2025-04-26 16:55:09,276 INFO L438 stractBuchiCegarLoop]: Abstraction has 64 states and 83 transitions. [2025-04-26 16:55:09,276 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:55:09,276 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 64 states and 83 transitions. [2025-04-26 16:55:09,277 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2025-04-26 16:55:09,277 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:09,277 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:09,277 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:55:09,277 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-04-26 16:55:09,277 INFO L752 eck$LassoCheckResult]: Stem: "[46] $Ultimate##0-->L40: Formula: (and (= v_i1_7 v_pos_9) (= v_i2_7 v_pos_9) (= v_pos_9 0)) InVars {i1=v_i1_7, pos=v_pos_9, i2=v_i2_7} OutVars{i1=v_i1_7, pos=v_pos_9, i2=v_i2_7} AuxVars[] AssignedVars[]" "[68] L40-->L17: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[52] L17-->thread1FINAL: Formula: (<= (* 2 v_N_2) v_i1_6) InVars {i1=v_i1_6, N=v_N_2} OutVars{i1=v_i1_6, N=v_N_2} AuxVars[] AssignedVars[]" "[54] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[71] L40-1-->L28: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:55:09,278 INFO L754 eck$LassoCheckResult]: Loop: "[60] L28-->L29: Formula: (< v_i2_4 (* 2 v_N_4)) InVars {i2=v_i2_4, N=v_N_4} OutVars{i2=v_i2_4, N=v_N_4} AuxVars[] AssignedVars[]" "[62] L29-->L30: Formula: (= (+ 2 v_pos_6) v_pos_5) InVars {pos=v_pos_6} OutVars{pos=v_pos_5} AuxVars[] AssignedVars[pos]" "[63] L30-->L31: Formula: (= (+ v_i2_6 1) v_i2_5) InVars {i2=v_i2_6} OutVars{i2=v_i2_5} AuxVars[] AssignedVars[i2]" "[64] L31-->L32: Formula: (= v_pos_8 (+ 2 v_pos_7)) InVars {pos=v_pos_8} OutVars{pos=v_pos_7} AuxVars[] AssignedVars[pos]" "[65] L32-->L28: Formula: (= v_i2_1 (+ v_i2_2 1)) InVars {i2=v_i2_2} OutVars{i2=v_i2_1} AuxVars[] AssignedVars[i2]" [2025-04-26 16:55:09,278 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:09,278 INFO L85 PathProgramCache]: Analyzing trace with hash 73188622, now seen corresponding path program 1 times [2025-04-26 16:55:09,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:09,278 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106570507] [2025-04-26 16:55:09,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:09,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:09,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:09,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:09,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:09,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:09,288 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:09,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:09,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:09,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:09,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:09,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:09,292 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:09,292 INFO L85 PathProgramCache]: Analyzing trace with hash 85950045, now seen corresponding path program 1 times [2025-04-26 16:55:09,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:09,292 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209941413] [2025-04-26 16:55:09,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:09,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:09,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:09,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:09,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:09,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:09,300 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:09,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:09,303 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:09,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:09,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:09,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:09,305 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:09,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1692083856, now seen corresponding path program 1 times [2025-04-26 16:55:09,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:09,306 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467205083] [2025-04-26 16:55:09,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:09,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:09,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-26 16:55:09,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-26 16:55:09,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:09,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:55:09,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:55:09,382 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467205083] [2025-04-26 16:55:09,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467205083] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:55:09,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:55:09,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-26 16:55:09,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608837990] [2025-04-26 16:55:09,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:55:09,410 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:09,410 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:09,410 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:09,410 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:09,410 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:55:09,410 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,410 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:09,410 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:09,410 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-2-unrolled.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:55:09,410 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:09,410 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:09,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:09,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:09,438 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:09,438 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:55:09,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:09,440 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 16:55:09,441 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 16:55:09,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:09,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:09,455 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:55:09,455 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {pos=0} Honda state: {pos=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:55:09,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:55:09,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:09,462 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 16:55:09,463 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 16:55:09,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:55:09,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:09,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:55:09,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:09,482 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 16:55:09,483 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 16:55:09,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:55:09,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:55:09,554 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:55:09,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 16:55:09,559 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:09,559 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:09,559 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:09,559 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:09,559 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:09,559 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,559 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:09,559 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:09,559 INFO L132 ssoRankerPreferences]: Filename of dumped script: misc-2-unrolled.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:55:09,559 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:09,559 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:09,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:09,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:09,589 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:09,590 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:09,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:09,594 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 16:55:09,595 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 16:55:09,595 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 16:55:09,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:09,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:09,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:09,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:09,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:09,607 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:09,607 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:09,609 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:09,615 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 16:55:09,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:09,617 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 16:55:09,618 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 16:55:09,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:55:09,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:09,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:55:09,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:09,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:09,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:09,633 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:55:09,633 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:55:09,636 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:09,638 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:55:09,638 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:55:09,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:09,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:09,640 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 16:55:09,642 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 16:55:09,642 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:09,645 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:55:09,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:09,646 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:55:09,646 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:09,646 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i2, N) = -1*i2 + 2*N Supporting invariants [] [2025-04-26 16:55:09,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:09,653 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:09,666 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:09,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:09,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:09,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:09,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:09,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:09,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:09,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:09,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:09,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:09,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:09,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:55:09,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:09,732 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 16:55:09,733 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-04-26 16:55:09,733 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 64 states and 83 transitions. cyclomatic complexity: 24 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (in total 10), 4 states have internal predecessors, (10), 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 16:55:09,773 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 64 states and 83 transitions. cyclomatic complexity: 24. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (in total 10), 4 states have internal predecessors, (10), 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 126 states and 165 transitions. Complement of second has 6 states. [2025-04-26 16:55:09,774 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:55:09,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (in total 10), 4 states have internal predecessors, (10), 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 16:55:09,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2025-04-26 16:55:09,775 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 5 letters. Loop has 5 letters. [2025-04-26 16:55:09,775 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:09,775 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 10 letters. Loop has 5 letters. [2025-04-26 16:55:09,775 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:09,776 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 33 transitions. Stem has 5 letters. Loop has 10 letters. [2025-04-26 16:55:09,776 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:09,776 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 165 transitions. [2025-04-26 16:55:09,777 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:55:09,777 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 0 states and 0 transitions. [2025-04-26 16:55:09,777 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:55:09,779 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:55:09,779 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:55:09,779 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:55:09,779 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:55:09,779 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:55:09,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:55:09,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-26 16:55:09,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-26 16:55:09,782 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (in total 10), 3 states have internal predecessors, (10), 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 16:55:09,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:55:09,783 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-04-26 16:55:09,783 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-04-26 16:55:09,783 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:55:09,783 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-04-26 16:55:09,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:55:09,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:55:09,784 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:55:09,784 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:55:09,784 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:55:09,784 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:55:09,784 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-26 16:55:09,784 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:55:09,784 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:55:09,784 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:55:09,784 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:55:09,784 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:55:09,798 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 16:55:09,799 INFO L201 PluginConnector]: Adding new model misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:55:09 BoogieIcfgContainer [2025-04-26 16:55:09,799 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:55:09,799 INFO L158 Benchmark]: Toolchain (without parser) took 1768.52ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 85.2MB in the beginning and 67.6MB in the end (delta: 17.6MB). Peak memory consumption was 18.3MB. Max. memory is 8.0GB. [2025-04-26 16:55:09,799 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.78ms. Allocated memory is still 159.4MB. Free memory was 86.2MB in the beginning and 86.0MB in the end (delta: 199.8kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:09,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.17ms. Allocated memory is still 159.4MB. Free memory was 85.0MB in the beginning and 83.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:09,800 INFO L158 Benchmark]: Boogie Preprocessor took 18.89ms. Allocated memory is still 159.4MB. Free memory was 83.3MB in the beginning and 82.4MB in the end (delta: 958.6kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:09,800 INFO L158 Benchmark]: RCFGBuilder took 153.44ms. Allocated memory is still 159.4MB. Free memory was 82.2MB in the beginning and 73.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:55:09,800 INFO L158 Benchmark]: BuchiAutomizer took 1563.03ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 73.1MB in the beginning and 67.6MB in the end (delta: 5.5MB). Peak memory consumption was 5.7MB. Max. memory is 8.0GB. [2025-04-26 16:55:09,801 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 0.78ms. Allocated memory is still 159.4MB. Free memory was 86.2MB in the beginning and 86.0MB in the end (delta: 199.8kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.17ms. Allocated memory is still 159.4MB. Free memory was 85.0MB in the beginning and 83.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 18.89ms. Allocated memory is still 159.4MB. Free memory was 83.3MB in the beginning and 82.4MB in the end (delta: 958.6kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 153.44ms. Allocated memory is still 159.4MB. Free memory was 82.2MB in the beginning and 73.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1563.03ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 73.1MB in the beginning and 67.6MB in the end (delta: 5.5MB). Peak memory consumption was 5.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 33 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp82 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 55ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.1s InitialAbstraction: Time to compute Ample Reduction [ms]: 143, Number of transitions in reduction automaton: 90, Number of states in reduction automaton: 70, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * N + -1 * i1 and consists of 5 locations. One deterministic module has affine ranking function -1 * i2 + 2 * N and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:55:09,814 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...