/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/popl20-more/mts-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:55:44,846 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:55:44,895 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:55:44,902 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:55:44,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:55:44,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:55:44,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:55:44,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:55:44,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:55:44,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:55:44,917 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:55:44,917 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:55:44,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:55:44,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:55:44,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:55:44,918 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:55:44,918 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:55:44,919 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:55:44,919 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:55:45,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:55:45,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:55:45,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:55:45,160 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:55:45,161 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:55:45,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts-array.wvr.bpl [2025-04-26 16:55:45,162 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts-array.wvr.bpl' [2025-04-26 16:55:45,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:55:45,181 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:55:45,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:55:45,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:55:45,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:55:45,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/1) ... [2025-04-26 16:55:45,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/1) ... [2025-04-26 16:55:45,212 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:55:45,213 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:55:45,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:55:45,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:55:45,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:55:45,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/1) ... [2025-04-26 16:55:45,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/1) ... [2025-04-26 16:55:45,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/1) ... [2025-04-26 16:55:45,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/1) ... [2025-04-26 16:55:45,222 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/1) ... [2025-04-26 16:55:45,223 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/1) ... [2025-04-26 16:55:45,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/1) ... [2025-04-26 16:55:45,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/1) ... [2025-04-26 16:55:45,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/1) ... [2025-04-26 16:55:45,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:55:45,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:55:45,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:55:45,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:55:45,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/1) ... [2025-04-26 16:55:45,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:55:45,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:45,256 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 16:55:45,258 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 16:55:45,284 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:55:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:55:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:55:45,284 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:55:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:55:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:55:45,284 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:55:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:55:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:55:45,284 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:55:45,284 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:55:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:55:45,285 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 16:55:45,334 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:55:45,336 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:55:45,458 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:55:45,459 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:55:45,476 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:55:45,477 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:55:45,477 INFO L201 PluginConnector]: Adding new model mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:55:45 BoogieIcfgContainer [2025-04-26 16:55:45,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:55:45,478 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:55:45,478 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:55:45,482 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:55:45,483 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:55:45,483 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:45" (1/2) ... [2025-04-26 16:55:45,484 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b51ba30 and model type mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:55:45, skipping insertion in model container [2025-04-26 16:55:45,484 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:55:45,484 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:55:45" (2/2) ... [2025-04-26 16:55:45,485 INFO L376 chiAutomizerObserver]: Analyzing ICFG mts-array.wvr.bpl [2025-04-26 16:55:45,520 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 16:55:45,565 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:55:45,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:55:45,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:45,569 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 16:55:45,570 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 16:55:45,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 85 flow [2025-04-26 16:55:45,641 INFO L116 PetriNetUnfolderBase]: 3/26 cut-off events. [2025-04-26 16:55:45,642 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 16:55:45,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 35 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2025-04-26 16:55:45,646 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 85 flow [2025-04-26 16:55:45,649 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2025-04-26 16:55:45,649 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 33 places, 26 transitions, 70 flow [2025-04-26 16:55:45,658 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 16:55:45,738 WARN L140 AmpleReduction]: Number of pruned transitions: 87 [2025-04-26 16:55:45,738 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 0 [2025-04-26 16:55:45,738 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 39 [2025-04-26 16:55:45,739 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:23 [2025-04-26 16:55:45,739 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:51 [2025-04-26 16:55:45,739 WARN L145 AmpleReduction]: Times succ was already a loop node:66 [2025-04-26 16:55:45,739 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:6 [2025-04-26 16:55:45,739 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 16:55:45,741 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 114 states, 112 states have (on average 2.0267857142857144) internal successors, (in total 227), 113 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 16:55:45,747 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:55:45,747 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:55:45,747 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:55:45,747 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:55:45,747 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:55:45,747 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:55:45,747 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:55:45,748 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:55:45,749 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 112 states have (on average 2.0267857142857144) internal successors, (in total 227), 113 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 16:55:45,759 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 84 [2025-04-26 16:55:45,760 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:45,760 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:45,763 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:55:45,763 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:45,763 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:55:45,763 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 112 states have (on average 2.0267857142857144) internal successors, (in total 227), 113 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 16:55:45,767 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 84 [2025-04-26 16:55:45,767 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:45,767 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:45,768 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:55:45,768 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:45,771 INFO L752 eck$LassoCheckResult]: Stem: "[65] $Ultimate##0-->L58: Formula: (<= 0 v_M_3) InVars {M=v_M_3} OutVars{M=v_M_3} AuxVars[] AssignedVars[]" "[50] L58-->L59: Formula: (< v_M_4 v_N_3) InVars {M=v_M_4, N=v_N_3} OutVars{M=v_M_4, N=v_N_3} AuxVars[] AssignedVars[]" "[45] L59-->L60: Formula: (and (= v_i_6 v_mts3_1) (= v_i_6 v_sum_1) (= v_i_6 0) (= v_i_6 v_mts1_3) (= v_j_6 v_i_6) (= v_i_6 v_mts2_3)) InVars {sum=v_sum_1, i=v_i_6, mts1=v_mts1_3, mts3=v_mts3_1, mts2=v_mts2_3, j=v_j_6} OutVars{sum=v_sum_1, i=v_i_6, mts1=v_mts1_3, mts3=v_mts3_1, mts2=v_mts2_3, j=v_j_6} AuxVars[] AssignedVars[]" "[61] L60-->L61: Formula: (= v_M_5 v_k_1) InVars {M=v_M_5, k=v_k_1} OutVars{M=v_M_5, k=v_k_1} AuxVars[] AssignedVars[]" "[83] L61-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:55:45,772 INFO L754 eck$LassoCheckResult]: Loop: "[70] L24-1-->L24: Formula: (< v_i_1 v_N_1) InVars {i=v_i_1, N=v_N_1} OutVars{i=v_i_1, N=v_N_1} AuxVars[] AssignedVars[]" "[72] L24-->L24-1: Formula: (and (= (+ v_i_8 1) v_i_7) (= (let ((.cse0 (+ (select v_A_5 v_i_8) v_mts1_6))) (ite (< .cse0 0) 0 .cse0)) v_mts1_5)) InVars {A=v_A_5, i=v_i_8, mts1=v_mts1_6} OutVars{A=v_A_5, i=v_i_7, mts1=v_mts1_5} AuxVars[] AssignedVars[i, mts1]" [2025-04-26 16:55:45,775 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:45,775 INFO L85 PathProgramCache]: Analyzing trace with hash 90192785, now seen corresponding path program 1 times [2025-04-26 16:55:45,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:45,780 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613067475] [2025-04-26 16:55:45,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:45,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:45,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:45,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:45,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:45,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:45,836 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:45,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:45,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:45,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:45,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:45,858 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:45,862 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:45,862 INFO L85 PathProgramCache]: Analyzing trace with hash 3203, now seen corresponding path program 1 times [2025-04-26 16:55:45,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:45,862 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37361104] [2025-04-26 16:55:45,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:45,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:45,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:45,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:45,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:45,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:45,874 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:45,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:45,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:45,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:45,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:45,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:45,889 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash 775922707, now seen corresponding path program 1 times [2025-04-26 16:55:45,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:45,889 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208485754] [2025-04-26 16:55:45,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:45,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:45,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:55:45,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:55:45,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:45,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:45,905 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:45,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:55:45,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:55:45,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:45,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:45,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:46,152 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:46,153 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:46,153 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:46,153 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:46,153 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:46,153 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:46,153 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:46,153 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:46,153 INFO L132 ssoRankerPreferences]: Filename of dumped script: mts-array.wvr.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:55:46,153 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:46,153 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:46,186 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:46,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:46,287 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:46,290 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:46,292 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:46,294 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:46,422 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:46,425 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:46,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:46,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:46,428 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 16:55:46,429 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 16:55:46,430 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 16:55:46,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:46,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:46,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:46,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:46,450 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:46,450 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:46,456 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:46,468 INFO L436 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2025-04-26 16:55:46,469 INFO L437 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2025-04-26 16:55:46,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:46,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:46,491 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 16:55:46,494 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 16:55:46,495 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:46,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:46,513 INFO L439 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-04-26 16:55:46,514 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:46,514 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2025-04-26 16:55:46,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-04-26 16:55:46,522 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:46,540 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:46,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:46,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:46,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:46,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:46,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:46,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:46,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:46,571 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:46,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:46,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:46,572 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:46,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:46,590 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 16:55:46,608 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:55:46,610 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 114 states, 112 states have (on average 2.0267857142857144) internal successors, (in total 227), 113 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) 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 16:55:46,704 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 114 states, 112 states have (on average 2.0267857142857144) internal successors, (in total 227), 113 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). 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 260 states and 529 transitions. Complement of second has 7 states. [2025-04-26 16:55:46,706 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 16:55:46,709 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 16:55:46,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2025-04-26 16:55:46,719 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:55:46,720 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:46,720 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 7 letters. Loop has 2 letters. [2025-04-26 16:55:46,720 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:46,720 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 5 letters. Loop has 4 letters. [2025-04-26 16:55:46,720 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:46,721 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 260 states and 529 transitions. [2025-04-26 16:55:46,726 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 42 [2025-04-26 16:55:46,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 260 states to 119 states and 241 transitions. [2025-04-26 16:55:46,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2025-04-26 16:55:46,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2025-04-26 16:55:46,731 INFO L74 IsDeterministic]: Start isDeterministic. Operand 119 states and 241 transitions. [2025-04-26 16:55:46,731 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:46,731 INFO L218 hiAutomatonCegarLoop]: Abstraction has 119 states and 241 transitions. [2025-04-26 16:55:46,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 241 transitions. [2025-04-26 16:55:46,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 104. [2025-04-26 16:55:46,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 2.019230769230769) internal successors, (in total 210), 103 states have internal predecessors, (210), 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 16:55:46,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 210 transitions. [2025-04-26 16:55:46,753 INFO L240 hiAutomatonCegarLoop]: Abstraction has 104 states and 210 transitions. [2025-04-26 16:55:46,753 INFO L438 stractBuchiCegarLoop]: Abstraction has 104 states and 210 transitions. [2025-04-26 16:55:46,753 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:55:46,754 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 210 transitions. [2025-04-26 16:55:46,755 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 42 [2025-04-26 16:55:46,755 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:46,755 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:46,755 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:55:46,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:46,756 INFO L752 eck$LassoCheckResult]: Stem: "[65] $Ultimate##0-->L58: Formula: (<= 0 v_M_3) InVars {M=v_M_3} OutVars{M=v_M_3} AuxVars[] AssignedVars[]" "[50] L58-->L59: Formula: (< v_M_4 v_N_3) InVars {M=v_M_4, N=v_N_3} OutVars{M=v_M_4, N=v_N_3} AuxVars[] AssignedVars[]" "[45] L59-->L60: Formula: (and (= v_i_6 v_mts3_1) (= v_i_6 v_sum_1) (= v_i_6 0) (= v_i_6 v_mts1_3) (= v_j_6 v_i_6) (= v_i_6 v_mts2_3)) InVars {sum=v_sum_1, i=v_i_6, mts1=v_mts1_3, mts3=v_mts3_1, mts2=v_mts2_3, j=v_j_6} OutVars{sum=v_sum_1, i=v_i_6, mts1=v_mts1_3, mts3=v_mts3_1, mts2=v_mts2_3, j=v_j_6} AuxVars[] AssignedVars[]" "[61] L60-->L61: Formula: (= v_M_5 v_k_1) InVars {M=v_M_5, k=v_k_1} OutVars{M=v_M_5, k=v_k_1} AuxVars[] AssignedVars[]" "[83] L61-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[69] L24-1-->thread1FINAL: Formula: (<= v_N_2 v_i_5) InVars {i=v_i_5, N=v_N_2} OutVars{i=v_i_5, N=v_N_2} AuxVars[] AssignedVars[]" "[71] thread1FINAL-->thread1EXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[]" "[86] L61-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:55:46,756 INFO L754 eck$LassoCheckResult]: Loop: "[74] L35-1-->L35: Formula: (< v_j_1 v_M_1) InVars {M=v_M_1, j=v_j_1} OutVars{M=v_M_1, j=v_j_1} AuxVars[] AssignedVars[]" "[76] L35-->L35-1: Formula: (and (= (let ((.cse0 (+ v_mts2_6 (select v_A_7 v_j_8)))) (ite (< .cse0 0) 0 .cse0)) v_mts2_5) (= (+ v_j_8 1) v_j_7)) InVars {A=v_A_7, mts2=v_mts2_6, j=v_j_8} OutVars{A=v_A_7, mts2=v_mts2_5, j=v_j_7} AuxVars[] AssignedVars[j, mts2]" [2025-04-26 16:55:46,756 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:46,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1716200765, now seen corresponding path program 1 times [2025-04-26 16:55:46,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:46,756 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202759277] [2025-04-26 16:55:46,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:46,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:46,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:55:46,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:55:46,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:46,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:46,829 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 16:55:46,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:55:46,830 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202759277] [2025-04-26 16:55:46,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202759277] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:55:46,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:55:46,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-26 16:55:46,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160433178] [2025-04-26 16:55:46,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:55:46,833 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-04-26 16:55:46,834 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:46,834 INFO L85 PathProgramCache]: Analyzing trace with hash 3331, now seen corresponding path program 1 times [2025-04-26 16:55:46,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:46,834 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002650674] [2025-04-26 16:55:46,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:46,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:46,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:46,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:46,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:46,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:46,839 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:46,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:46,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:46,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:46,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:46,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:46,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:55:46,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-26 16:55:46,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-26 16:55:46,889 INFO L87 Difference]: Start difference. First operand 104 states and 210 transitions. cyclomatic complexity: 133 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:46,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:55:46,931 INFO L93 Difference]: Finished difference Result 106 states and 212 transitions. [2025-04-26 16:55:46,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 212 transitions. [2025-04-26 16:55:46,933 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 42 [2025-04-26 16:55:46,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 106 states and 212 transitions. [2025-04-26 16:55:46,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2025-04-26 16:55:46,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2025-04-26 16:55:46,935 INFO L74 IsDeterministic]: Start isDeterministic. Operand 106 states and 212 transitions. [2025-04-26 16:55:46,935 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:46,935 INFO L218 hiAutomatonCegarLoop]: Abstraction has 106 states and 212 transitions. [2025-04-26 16:55:46,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states and 212 transitions. [2025-04-26 16:55:46,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2025-04-26 16:55:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 2.0096153846153846) internal successors, (in total 209), 103 states have internal predecessors, (209), 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 16:55:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 209 transitions. [2025-04-26 16:55:46,940 INFO L240 hiAutomatonCegarLoop]: Abstraction has 104 states and 209 transitions. [2025-04-26 16:55:46,940 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-26 16:55:46,941 INFO L438 stractBuchiCegarLoop]: Abstraction has 104 states and 209 transitions. [2025-04-26 16:55:46,941 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:55:46,941 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 209 transitions. [2025-04-26 16:55:46,942 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 42 [2025-04-26 16:55:46,942 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:46,942 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:46,942 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:55:46,942 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:46,942 INFO L752 eck$LassoCheckResult]: Stem: "[65] $Ultimate##0-->L58: Formula: (<= 0 v_M_3) InVars {M=v_M_3} OutVars{M=v_M_3} AuxVars[] AssignedVars[]" "[50] L58-->L59: Formula: (< v_M_4 v_N_3) InVars {M=v_M_4, N=v_N_3} OutVars{M=v_M_4, N=v_N_3} AuxVars[] AssignedVars[]" "[45] L59-->L60: Formula: (and (= v_i_6 v_mts3_1) (= v_i_6 v_sum_1) (= v_i_6 0) (= v_i_6 v_mts1_3) (= v_j_6 v_i_6) (= v_i_6 v_mts2_3)) InVars {sum=v_sum_1, i=v_i_6, mts1=v_mts1_3, mts3=v_mts3_1, mts2=v_mts2_3, j=v_j_6} OutVars{sum=v_sum_1, i=v_i_6, mts1=v_mts1_3, mts3=v_mts3_1, mts2=v_mts2_3, j=v_j_6} AuxVars[] AssignedVars[]" "[61] L60-->L61: Formula: (= v_M_5 v_k_1) InVars {M=v_M_5, k=v_k_1} OutVars{M=v_M_5, k=v_k_1} AuxVars[] AssignedVars[]" "[83] L61-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[70] L24-1-->L24: Formula: (< v_i_1 v_N_1) InVars {i=v_i_1, N=v_N_1} OutVars{i=v_i_1, N=v_N_1} AuxVars[] AssignedVars[]" "[86] L61-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[72] L24-->L24-1: Formula: (and (= (+ v_i_8 1) v_i_7) (= (let ((.cse0 (+ (select v_A_5 v_i_8) v_mts1_6))) (ite (< .cse0 0) 0 .cse0)) v_mts1_5)) InVars {A=v_A_5, i=v_i_8, mts1=v_mts1_6} OutVars{A=v_A_5, i=v_i_7, mts1=v_mts1_5} AuxVars[] AssignedVars[i, mts1]" "[69] L24-1-->thread1FINAL: Formula: (<= v_N_2 v_i_5) InVars {i=v_i_5, N=v_N_2} OutVars{i=v_i_5, N=v_N_2} AuxVars[] AssignedVars[]" [2025-04-26 16:55:46,943 INFO L754 eck$LassoCheckResult]: Loop: "[74] L35-1-->L35: Formula: (< v_j_1 v_M_1) InVars {M=v_M_1, j=v_j_1} OutVars{M=v_M_1, j=v_j_1} AuxVars[] AssignedVars[]" "[76] L35-->L35-1: Formula: (and (= (let ((.cse0 (+ v_mts2_6 (select v_A_7 v_j_8)))) (ite (< .cse0 0) 0 .cse0)) v_mts2_5) (= (+ v_j_8 1) v_j_7)) InVars {A=v_A_7, mts2=v_mts2_6, j=v_j_8} OutVars{A=v_A_7, mts2=v_mts2_5, j=v_j_7} AuxVars[] AssignedVars[j, mts2]" [2025-04-26 16:55:46,943 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:46,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1662572322, now seen corresponding path program 1 times [2025-04-26 16:55:46,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:46,943 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642338606] [2025-04-26 16:55:46,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:46,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:46,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:55:46,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:55:46,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:46,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:46,949 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:46,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:55:46,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:55:46,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:46,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:46,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:46,956 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:46,956 INFO L85 PathProgramCache]: Analyzing trace with hash 3331, now seen corresponding path program 2 times [2025-04-26 16:55:46,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:46,956 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245124571] [2025-04-26 16:55:46,956 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:55:46,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:46,959 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:46,960 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:46,960 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:55:46,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:46,960 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:46,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:46,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:46,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:46,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:46,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:46,964 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:46,964 INFO L85 PathProgramCache]: Analyzing trace with hash -4164960, now seen corresponding path program 1 times [2025-04-26 16:55:46,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:46,965 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988850513] [2025-04-26 16:55:46,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:46,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:46,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-26 16:55:46,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 16:55:46,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:46,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:47,045 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 16:55:47,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:55:47,045 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988850513] [2025-04-26 16:55:47,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988850513] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:55:47,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:55:47,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-26 16:55:47,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717804543] [2025-04-26 16:55:47,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:55:47,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:55:47,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-26 16:55:47,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-26 16:55:47,088 INFO L87 Difference]: Start difference. First operand 104 states and 209 transitions. cyclomatic complexity: 132 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (in total 11), 6 states have internal predecessors, (11), 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 16:55:47,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:55:47,189 INFO L93 Difference]: Finished difference Result 154 states and 290 transitions. [2025-04-26 16:55:47,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 290 transitions. [2025-04-26 16:55:47,191 INFO L131 ngComponentsAnalysis]: Automaton has 25 accepting balls. 56 [2025-04-26 16:55:47,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 152 states and 288 transitions. [2025-04-26 16:55:47,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2025-04-26 16:55:47,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2025-04-26 16:55:47,193 INFO L74 IsDeterministic]: Start isDeterministic. Operand 152 states and 288 transitions. [2025-04-26 16:55:47,193 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:47,193 INFO L218 hiAutomatonCegarLoop]: Abstraction has 152 states and 288 transitions. [2025-04-26 16:55:47,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 288 transitions. [2025-04-26 16:55:47,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 123. [2025-04-26 16:55:47,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 123 states have (on average 1.983739837398374) internal successors, (in total 244), 122 states have internal predecessors, (244), 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 16:55:47,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 244 transitions. [2025-04-26 16:55:47,198 INFO L240 hiAutomatonCegarLoop]: Abstraction has 123 states and 244 transitions. [2025-04-26 16:55:47,198 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-04-26 16:55:47,199 INFO L438 stractBuchiCegarLoop]: Abstraction has 123 states and 244 transitions. [2025-04-26 16:55:47,199 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:55:47,199 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states and 244 transitions. [2025-04-26 16:55:47,199 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 42 [2025-04-26 16:55:47,199 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:47,200 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:47,200 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:55:47,200 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:47,200 INFO L752 eck$LassoCheckResult]: Stem: "[65] $Ultimate##0-->L58: Formula: (<= 0 v_M_3) InVars {M=v_M_3} OutVars{M=v_M_3} AuxVars[] AssignedVars[]" "[50] L58-->L59: Formula: (< v_M_4 v_N_3) InVars {M=v_M_4, N=v_N_3} OutVars{M=v_M_4, N=v_N_3} AuxVars[] AssignedVars[]" "[45] L59-->L60: Formula: (and (= v_i_6 v_mts3_1) (= v_i_6 v_sum_1) (= v_i_6 0) (= v_i_6 v_mts1_3) (= v_j_6 v_i_6) (= v_i_6 v_mts2_3)) InVars {sum=v_sum_1, i=v_i_6, mts1=v_mts1_3, mts3=v_mts3_1, mts2=v_mts2_3, j=v_j_6} OutVars{sum=v_sum_1, i=v_i_6, mts1=v_mts1_3, mts3=v_mts3_1, mts2=v_mts2_3, j=v_j_6} AuxVars[] AssignedVars[]" "[61] L60-->L61: Formula: (= v_M_5 v_k_1) InVars {M=v_M_5, k=v_k_1} OutVars{M=v_M_5, k=v_k_1} AuxVars[] AssignedVars[]" "[83] L61-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[70] L24-1-->L24: Formula: (< v_i_1 v_N_1) InVars {i=v_i_1, N=v_N_1} OutVars{i=v_i_1, N=v_N_1} AuxVars[] AssignedVars[]" "[86] L61-1-->L35-1: 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]" "[72] L24-->L24-1: Formula: (and (= (+ v_i_8 1) v_i_7) (= (let ((.cse0 (+ (select v_A_5 v_i_8) v_mts1_6))) (ite (< .cse0 0) 0 .cse0)) v_mts1_5)) InVars {A=v_A_5, i=v_i_8, mts1=v_mts1_6} OutVars{A=v_A_5, i=v_i_7, mts1=v_mts1_5} AuxVars[] AssignedVars[i, mts1]" "[70] L24-1-->L24: Formula: (< v_i_1 v_N_1) InVars {i=v_i_1, N=v_N_1} OutVars{i=v_i_1, N=v_N_1} AuxVars[] AssignedVars[]" "[72] L24-->L24-1: Formula: (and (= (+ v_i_8 1) v_i_7) (= (let ((.cse0 (+ (select v_A_5 v_i_8) v_mts1_6))) (ite (< .cse0 0) 0 .cse0)) v_mts1_5)) InVars {A=v_A_5, i=v_i_8, mts1=v_mts1_6} OutVars{A=v_A_5, i=v_i_7, mts1=v_mts1_5} AuxVars[] AssignedVars[i, mts1]" "[69] L24-1-->thread1FINAL: Formula: (<= v_N_2 v_i_5) InVars {i=v_i_5, N=v_N_2} OutVars{i=v_i_5, N=v_N_2} AuxVars[] AssignedVars[]" [2025-04-26 16:55:47,200 INFO L754 eck$LassoCheckResult]: Loop: "[74] L35-1-->L35: Formula: (< v_j_1 v_M_1) InVars {M=v_M_1, j=v_j_1} OutVars{M=v_M_1, j=v_j_1} AuxVars[] AssignedVars[]" "[76] L35-->L35-1: Formula: (and (= (let ((.cse0 (+ v_mts2_6 (select v_A_7 v_j_8)))) (ite (< .cse0 0) 0 .cse0)) v_mts2_5) (= (+ v_j_8 1) v_j_7)) InVars {A=v_A_7, mts2=v_mts2_6, j=v_j_8} OutVars{A=v_A_7, mts2=v_mts2_5, j=v_j_7} AuxVars[] AssignedVars[j, mts2]" [2025-04-26 16:55:47,201 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:47,201 INFO L85 PathProgramCache]: Analyzing trace with hash -4164068, now seen corresponding path program 2 times [2025-04-26 16:55:47,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:47,201 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552263194] [2025-04-26 16:55:47,201 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:55:47,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:47,204 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 11 statements into 2 equivalence classes. [2025-04-26 16:55:47,214 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 16:55:47,214 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-26 16:55:47,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:47,214 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:47,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-26 16:55:47,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 16:55:47,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:47,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:47,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:47,222 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:47,222 INFO L85 PathProgramCache]: Analyzing trace with hash 3331, now seen corresponding path program 3 times [2025-04-26 16:55:47,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:47,222 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688280792] [2025-04-26 16:55:47,222 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-26 16:55:47,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:47,224 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:47,226 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:47,226 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-26 16:55:47,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:47,226 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:47,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:47,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:47,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:47,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:47,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:47,229 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:47,229 INFO L85 PathProgramCache]: Analyzing trace with hash 293300318, now seen corresponding path program 2 times [2025-04-26 16:55:47,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:47,230 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685437567] [2025-04-26 16:55:47,230 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:55:47,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:47,232 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 2 equivalence classes. [2025-04-26 16:55:47,240 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 13 of 13 statements. [2025-04-26 16:55:47,240 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-26 16:55:47,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:47,240 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:47,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-26 16:55:47,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-26 16:55:47,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:47,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:47,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:47,561 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:47,561 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:47,561 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:47,561 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:47,561 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:47,561 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:47,561 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:47,561 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:47,561 INFO L132 ssoRankerPreferences]: Filename of dumped script: mts-array.wvr.bpl_petrified1_Iteration4_Lasso [2025-04-26 16:55:47,561 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:47,561 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:47,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:47,568 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:47,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:47,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:47,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:47,738 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:47,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:47,743 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:48,022 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:48,022 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:48,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:48,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:48,027 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 16:55:48,029 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 16:55:48,030 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 16:55:48,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:48,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:48,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:48,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:48,042 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:48,042 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:48,045 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:48,050 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 16:55:48,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:48,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:48,052 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 16:55:48,053 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 16:55:48,054 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 16:55:48,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:48,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:48,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:48,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:48,066 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:48,066 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:48,068 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:48,074 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 16:55:48,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:48,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:48,076 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 16:55:48,076 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 16:55:48,077 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 16:55:48,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:48,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:48,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:48,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:48,090 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:48,090 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:48,095 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:48,103 INFO L436 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2025-04-26 16:55:48,104 INFO L437 ModelExtractionUtils]: 2 out of 13 variables were initially zero. Simplification set additionally 8 variables to zero. [2025-04-26 16:55:48,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:48,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:48,106 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 16:55:48,106 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 16:55:48,107 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:48,123 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 16:55:48,124 INFO L439 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-04-26 16:55:48,124 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:48,124 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2025-04-26 16:55:48,130 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 16:55:48,132 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:55:48,142 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:48,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-26 16:55:48,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 16:55:48,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:48,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:48,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:48,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:48,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:48,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:48,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:48,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:48,169 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:48,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:48,180 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 16:55:48,181 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:55:48,181 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 123 states and 244 transitions. cyclomatic complexity: 148 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 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 16:55:48,241 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 123 states and 244 transitions. cyclomatic complexity: 148. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 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 267 states and 557 transitions. Complement of second has 6 states. [2025-04-26 16:55:48,242 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 16:55:48,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 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 16:55:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2025-04-26 16:55:48,243 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 11 letters. Loop has 2 letters. [2025-04-26 16:55:48,243 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:48,243 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 13 letters. Loop has 2 letters. [2025-04-26 16:55:48,243 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:48,243 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 11 letters. Loop has 4 letters. [2025-04-26 16:55:48,243 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:48,244 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 557 transitions. [2025-04-26 16:55:48,246 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 14 [2025-04-26 16:55:48,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 158 states and 310 transitions. [2025-04-26 16:55:48,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2025-04-26 16:55:48,251 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2025-04-26 16:55:48,252 INFO L74 IsDeterministic]: Start isDeterministic. Operand 158 states and 310 transitions. [2025-04-26 16:55:48,252 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:48,252 INFO L218 hiAutomatonCegarLoop]: Abstraction has 158 states and 310 transitions. [2025-04-26 16:55:48,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 310 transitions. [2025-04-26 16:55:48,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 121. [2025-04-26 16:55:48,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 121 states have (on average 2.074380165289256) internal successors, (in total 251), 120 states have internal predecessors, (251), 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 16:55:48,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 251 transitions. [2025-04-26 16:55:48,259 INFO L240 hiAutomatonCegarLoop]: Abstraction has 121 states and 251 transitions. [2025-04-26 16:55:48,259 INFO L438 stractBuchiCegarLoop]: Abstraction has 121 states and 251 transitions. [2025-04-26 16:55:48,261 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 16:55:48,261 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 121 states and 251 transitions. [2025-04-26 16:55:48,263 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 14 [2025-04-26 16:55:48,263 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:48,264 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:48,264 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-26 16:55:48,264 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:55:48,264 INFO L752 eck$LassoCheckResult]: Stem: "[65] $Ultimate##0-->L58: Formula: (<= 0 v_M_3) InVars {M=v_M_3} OutVars{M=v_M_3} AuxVars[] AssignedVars[]" "[50] L58-->L59: Formula: (< v_M_4 v_N_3) InVars {M=v_M_4, N=v_N_3} OutVars{M=v_M_4, N=v_N_3} AuxVars[] AssignedVars[]" "[45] L59-->L60: Formula: (and (= v_i_6 v_mts3_1) (= v_i_6 v_sum_1) (= v_i_6 0) (= v_i_6 v_mts1_3) (= v_j_6 v_i_6) (= v_i_6 v_mts2_3)) InVars {sum=v_sum_1, i=v_i_6, mts1=v_mts1_3, mts3=v_mts3_1, mts2=v_mts2_3, j=v_j_6} OutVars{sum=v_sum_1, i=v_i_6, mts1=v_mts1_3, mts3=v_mts3_1, mts2=v_mts2_3, j=v_j_6} AuxVars[] AssignedVars[]" "[61] L60-->L61: Formula: (= v_M_5 v_k_1) InVars {M=v_M_5, k=v_k_1} OutVars{M=v_M_5, k=v_k_1} AuxVars[] AssignedVars[]" "[83] L61-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[70] L24-1-->L24: Formula: (< v_i_1 v_N_1) InVars {i=v_i_1, N=v_N_1} OutVars{i=v_i_1, N=v_N_1} AuxVars[] AssignedVars[]" "[86] L61-1-->L35-1: 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]" "[72] L24-->L24-1: Formula: (and (= (+ v_i_8 1) v_i_7) (= (let ((.cse0 (+ (select v_A_5 v_i_8) v_mts1_6))) (ite (< .cse0 0) 0 .cse0)) v_mts1_5)) InVars {A=v_A_5, i=v_i_8, mts1=v_mts1_6} OutVars{A=v_A_5, i=v_i_7, mts1=v_mts1_5} AuxVars[] AssignedVars[i, mts1]" "[89] L62-->L46-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[69] L24-1-->thread1FINAL: Formula: (<= v_N_2 v_i_5) InVars {i=v_i_5, N=v_N_2} OutVars{i=v_i_5, N=v_N_2} AuxVars[] AssignedVars[]" "[73] L35-1-->thread2FINAL: Formula: (<= v_M_2 v_j_5) InVars {M=v_M_2, j=v_j_5} OutVars{M=v_M_2, j=v_j_5} AuxVars[] AssignedVars[]" [2025-04-26 16:55:48,264 INFO L754 eck$LassoCheckResult]: Loop: "[78] L46-1-->L46: Formula: (< v_k_2 v_N_4) InVars {k=v_k_2, N=v_N_4} OutVars{k=v_k_2, N=v_N_4} AuxVars[] AssignedVars[]" "[80] L46-->L46-1: Formula: (let ((.cse0 (select v_A_11 v_k_13))) (and (= (+ .cse0 v_sum_10) v_sum_9) (= v_k_12 (+ v_k_13 1)) (= (let ((.cse1 (+ .cse0 v_mts3_6))) (ite (< .cse1 0) 0 .cse1)) v_mts3_5))) InVars {sum=v_sum_10, A=v_A_11, mts3=v_mts3_6, k=v_k_13} OutVars{sum=v_sum_9, A=v_A_11, mts3=v_mts3_5, k=v_k_12} AuxVars[] AssignedVars[sum, k, mts3]" [2025-04-26 16:55:48,265 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:48,265 INFO L85 PathProgramCache]: Analyzing trace with hash -4145898, now seen corresponding path program 1 times [2025-04-26 16:55:48,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:48,265 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240400971] [2025-04-26 16:55:48,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:48,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:48,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-26 16:55:48,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 16:55:48,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:48,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:48,275 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:48,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-26 16:55:48,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 16:55:48,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:48,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:48,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:48,282 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:48,283 INFO L85 PathProgramCache]: Analyzing trace with hash 3459, now seen corresponding path program 1 times [2025-04-26 16:55:48,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:48,283 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617265839] [2025-04-26 16:55:48,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:48,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:48,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:48,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:48,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:48,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:48,288 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:48,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:48,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:48,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:48,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:48,295 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:48,295 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:48,295 INFO L85 PathProgramCache]: Analyzing trace with hash 310761816, now seen corresponding path program 1 times [2025-04-26 16:55:48,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:48,295 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141077058] [2025-04-26 16:55:48,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:48,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:48,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-26 16:55:48,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-26 16:55:48,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:48,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:48,302 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:48,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-26 16:55:48,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-26 16:55:48,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:48,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:48,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:48,507 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:48,507 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:48,507 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:48,507 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:48,507 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:48,507 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:48,508 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:48,508 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:48,508 INFO L132 ssoRankerPreferences]: Filename of dumped script: mts-array.wvr.bpl_petrified1_Iteration5_Lasso [2025-04-26 16:55:48,508 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:48,508 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:48,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:48,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:48,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:48,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:48,579 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:48,581 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:48,587 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:48,589 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:48,592 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:48,594 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:48,783 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:48,784 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:48,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:48,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:48,785 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 16:55:48,787 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 16:55:48,787 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 16:55:48,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:48,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:48,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:48,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:48,798 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:48,798 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:48,801 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:48,807 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 16:55:48,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:48,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:48,809 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 16:55:48,810 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 16:55:48,812 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 16:55:48,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:48,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:48,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:48,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:48,828 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:48,828 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:48,833 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:48,842 INFO L436 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-04-26 16:55:48,842 INFO L437 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 6 variables to zero. [2025-04-26 16:55:48,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:48,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:48,844 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 16:55:48,846 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 16:55:48,846 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:48,862 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 16:55:48,863 INFO L439 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-04-26 16:55:48,863 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:48,863 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(k, N) = -1*k + 1*N Supporting invariants [] [2025-04-26 16:55:48,869 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 16:55:48,869 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:48,878 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:48,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-26 16:55:48,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-26 16:55:48,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:48,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:48,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:48,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:48,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:48,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:48,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:48,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:48,902 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:48,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:48,914 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 16:55:48,915 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:55:48,915 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 121 states and 251 transitions. cyclomatic complexity: 149 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (in total 13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:48,952 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 121 states and 251 transitions. cyclomatic complexity: 149. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (in total 13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 224 states and 442 transitions. Complement of second has 6 states. [2025-04-26 16:55:48,952 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 16:55:48,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (in total 13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:48,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2025-04-26 16:55:48,953 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 43 transitions. Stem has 11 letters. Loop has 2 letters. [2025-04-26 16:55:48,953 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:48,953 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 43 transitions. Stem has 13 letters. Loop has 2 letters. [2025-04-26 16:55:48,953 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:48,953 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 43 transitions. Stem has 11 letters. Loop has 4 letters. [2025-04-26 16:55:48,953 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:48,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 224 states and 442 transitions. [2025-04-26 16:55:48,955 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:55:48,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 224 states to 0 states and 0 transitions. [2025-04-26 16:55:48,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:55:48,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:55:48,955 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:55:48,955 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:55:48,955 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:55:48,955 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:55:48,955 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:55:48,955 INFO L340 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-04-26 16:55:48,955 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:55:48,956 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:55:48,956 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:55:48,969 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 16:55:48,970 INFO L201 PluginConnector]: Adding new model mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:55:48 BoogieIcfgContainer [2025-04-26 16:55:48,970 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:55:48,970 INFO L158 Benchmark]: Toolchain (without parser) took 3789.16ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 85.7MB in the beginning and 43.2MB in the end (delta: 42.6MB). Peak memory consumption was 43.8MB. Max. memory is 8.0GB. [2025-04-26 16:55:48,971 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:48,972 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.24ms. Allocated memory is still 159.4MB. Free memory was 85.7MB in the beginning and 83.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:55:48,972 INFO L158 Benchmark]: Boogie Preprocessor took 18.43ms. Allocated memory is still 159.4MB. Free memory was 83.1MB in the beginning and 82.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:48,972 INFO L158 Benchmark]: RCFGBuilder took 244.07ms. Allocated memory is still 159.4MB. Free memory was 81.9MB in the beginning and 71.9MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:55:48,972 INFO L158 Benchmark]: BuchiAutomizer took 3492.08ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 71.7MB in the beginning and 43.2MB in the end (delta: 28.6MB). Peak memory consumption was 31.2MB. Max. memory is 8.0GB. [2025-04-26 16:55:48,973 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.24ms. Allocated memory is still 159.4MB. Free memory was 85.7MB in the beginning and 83.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.43ms. Allocated memory is still 159.4MB. Free memory was 83.1MB in the beginning and 82.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 244.07ms. Allocated memory is still 159.4MB. Free memory was 81.9MB in the beginning and 71.9MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 3492.08ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 71.7MB in the beginning and 43.2MB in the end (delta: 28.6MB). Peak memory consumption was 31.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 83 StatesRemovedByMinimization, 4 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 226 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 223 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 223 IncrementalHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 60 mSDtfsCounter, 223 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital116 mio100 ax100 hnf100 lsp220 ukn45 mio100 lsp67 div100 bol100 ite100 ukn100 eq160 hnf96 smp100 dnf297 smp42 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 88ms VariablesStem: 4 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.1s InitialAbstraction: Time to compute Ample Reduction [ms]: 178, Number of transitions in reduction automaton: 227, Number of states in reduction automaton: 114, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function N + -1 * i and consists of 5 locations. One deterministic module has affine ranking function M + -1 * j and consists of 4 locations. One deterministic module has affine ranking function -1 * k + N and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:55:48,987 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...