/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/chl/word-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:55:01,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:55:01,107 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/Termination.epf [2025-04-26 16:55:01,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:55:01,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:55:01,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Check unreachability of error function in SV-COMP mode [2025-04-26 16:55:01,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2025-04-26 16:55:01,134 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:55:01,134 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:55:01,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:55:01,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:55:01,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:55:01,134 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:55:01,135 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:55:01,135 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:55:01,135 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:55:01,135 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:55:01,135 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:55:01,135 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:55:01,135 INFO L153 SettingsManager]: * Automaton type for concurrent programs=PARTIAL_ORDER_BA [2025-04-26 16:55:01,135 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:55:01,135 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:55:01,135 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:55:01,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:55:01,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:55:01,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:55:01,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:55:01,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:55:01,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:55:01,136 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:55:01,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:55:01,137 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:55:01,137 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:55:01,137 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:55:01,137 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:55:01,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:55:01,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:55:01,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:55:01,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-26 16:55:01,137 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-26 16:55:01,137 INFO L153 SettingsManager]: * Use conditional POR in concurrent analysis=false [2025-04-26 16:55:01,137 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:55:01,138 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:55:01,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:55:01,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:55:01,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:55:01,346 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:55:01,347 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:55:01,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl [2025-04-26 16:55:01,347 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-subst.wvr.bpl' [2025-04-26 16:55:01,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:55:01,364 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:55:01,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:55:01,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:55:01,364 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:55:01,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/1) ... [2025-04-26 16:55:01,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/1) ... [2025-04-26 16:55:01,391 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:55:01,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:55:01,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:55:01,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:55:01,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:55:01,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/1) ... [2025-04-26 16:55:01,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/1) ... [2025-04-26 16:55:01,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/1) ... [2025-04-26 16:55:01,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/1) ... [2025-04-26 16:55:01,411 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/1) ... [2025-04-26 16:55:01,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/1) ... [2025-04-26 16:55:01,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/1) ... [2025-04-26 16:55:01,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/1) ... [2025-04-26 16:55:01,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/1) ... [2025-04-26 16:55:01,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:55:01,426 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:55:01,426 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:55:01,426 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:55:01,427 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/1) ... [2025-04-26 16:55:01,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 [2025-04-26 16:55:01,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:01,454 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 16:55:01,458 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 16:55:01,487 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:55:01,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:55:01,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:55:01,488 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:55:01,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:55:01,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:55:01,488 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:55:01,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:55:01,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:55:01,488 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:55:01,488 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:55:01,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:55:01,489 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 16:55:01,534 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:55:01,536 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:55:01,682 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:55:01,682 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:55:01,760 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:55:01,760 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-04-26 16:55:01,761 INFO L201 PluginConnector]: Adding new model word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:55:01 BoogieIcfgContainer [2025-04-26 16:55:01,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:55:01,761 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:55:01,761 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:55:01,768 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:55:01,769 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:55:01,769 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:55:01" (1/2) ... [2025-04-26 16:55:01,770 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11e814a1 and model type word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:55:01, skipping insertion in model container [2025-04-26 16:55:01,771 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:55:01,772 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:55:01" (2/2) ... [2025-04-26 16:55:01,773 INFO L376 chiAutomizerObserver]: Analyzing ICFG word-subst.wvr.bpl [2025-04-26 16:55:01,826 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-04-26 16:55:01,865 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-26 16:55:01,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-26 16:55:01,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:01,873 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 16:55:01,877 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 16:55:01,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 31 transitions, 83 flow [2025-04-26 16:55:01,955 INFO L116 PetriNetUnfolderBase]: 6/25 cut-off events. [2025-04-26 16:55:01,961 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-26 16:55:01,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 6/25 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 34 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2025-04-26 16:55:01,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 31 transitions, 83 flow [2025-04-26 16:55:01,968 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 25 transitions, 68 flow [2025-04-26 16:55:01,968 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 29 places, 25 transitions, 68 flow [2025-04-26 16:55:01,973 INFO L135 AmpleReduction]: Starting ample reduction [2025-04-26 16:55:02,008 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 67#[thread2EXIT, L123, thread1EXIT, L98]true [2025-04-26 16:55:02,013 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 71#[thread2EXIT, L124, L98]true [2025-04-26 16:55:02,014 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 51#[thread1EXIT, L122, L68]true [2025-04-26 16:55:02,019 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 97#[L68, L123, thread1EXIT, L98]true [2025-04-26 16:55:02,022 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 109#[L68, L123, thread1EXIT, thread3EXIT]true [2025-04-26 16:55:02,023 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 103#[L124, L68, L98]true [2025-04-26 16:55:02,024 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 41#[L121, L38]true [2025-04-26 16:55:02,028 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 123#[L122, L38, L68]true [2025-04-26 16:55:02,029 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 125#[L81, L122, L38]true [2025-04-26 16:55:02,030 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 139#[thread2EXIT, L122, L38]true [2025-04-26 16:55:02,032 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 149#[thread2EXIT, L123, L98, L38]true [2025-04-26 16:55:02,035 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 161#[L81, L123, L98, L38]true [2025-04-26 16:55:02,036 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 169#[L123, L38, thread3EXIT, L81]true [2025-04-26 16:55:02,037 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 173#[L68, L123, L98, L38]true [2025-04-26 16:55:02,038 WARN L275 AmpleReduction]: Non-loop node is now a loop node: 181#[L68, L123, L38, thread3EXIT]true [2025-04-26 16:55:02,038 WARN L140 AmpleReduction]: Number of pruned transitions: 60 [2025-04-26 16:55:02,039 WARN L141 AmpleReduction]: Loop nodes with "changing loop node status": 15 [2025-04-26 16:55:02,039 WARN L142 AmpleReduction]: Number of trivial sets caused by loops: 15 [2025-04-26 16:55:02,039 WARN L143 AmpleReduction]: Number of not loop caused trivial ample sets:16 [2025-04-26 16:55:02,039 WARN L144 AmpleReduction]: Number of initially assigned non-trivial ample sets:43 [2025-04-26 16:55:02,039 WARN L145 AmpleReduction]: Times succ was already a loop node:0 [2025-04-26 16:55:02,039 WARN L146 AmpleReduction]: Times some other node on the cycle already had a trivial ample set:0 [2025-04-26 16:55:02,039 INFO L149 AmpleReduction]: Finished ample reduction [2025-04-26 16:55:02,041 INFO L136 dAbstractionProvider]: Constructed initial ample set-reduced NBA abstraction that has 60 states, 58 states have (on average 1.9482758620689655) internal successors, (in total 113), 59 states have internal predecessors, (113), 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 16:55:02,045 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:55:02,046 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:55:02,046 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:55:02,046 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:55:02,046 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:55:02,046 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:55:02,046 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:55:02,046 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:55:02,047 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 states, 58 states have (on average 1.9482758620689655) internal successors, (in total 113), 59 states have internal predecessors, (113), 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 16:55:02,059 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 18 [2025-04-26 16:55:02,060 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:02,060 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:02,063 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:55:02,063 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-04-26 16:55:02,063 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:55:02,064 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 states, 58 states have (on average 1.9482758620689655) internal successors, (in total 113), 59 states have internal predecessors, (113), 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 16:55:02,068 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 18 [2025-04-26 16:55:02,068 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:02,068 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:02,068 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:55:02,068 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-04-26 16:55:02,071 INFO L752 eck$LassoCheckResult]: Stem: "[133] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[117] $Ultimate##0-->L38: Formula: (and (not v_break_10_23) (= v_count_4_9 v_count_1_9) (= v_i_9_24 0)) InVars {count_4=v_count_4_9, count_1=v_count_1_9} OutVars{break_10=v_break_10_23, count_1=v_count_1_9, count_4=v_count_4_9, i_9=v_i_9_24} AuxVars[] AssignedVars[break_10, i_9]" [2025-04-26 16:55:02,072 INFO L754 eck$LassoCheckResult]: Loop: "[120] L38-->L38: Formula: (let ((.cse0 (not v_break_10_18)) (.cse3 (select v_get_3_9 v_i_9_19)) (.cse2 (select v_get_0_9 v_i_9_19))) (and (< v_i_9_19 v_len_2_9) .cse0 (let ((.cse1 (= .cse2 .cse3))) (or (and (or (not .cse1) v_break_10_18) v_break_10_17) (and (not v_break_10_17) .cse0 .cse1))) (< v_i_9_19 v_len_5_9) (= v_result_11_17 (ite (< .cse2 .cse3) (- 1) (ite (< .cse3 .cse2) 1 v_result_11_18))) (= (+ v_i_9_19 1) v_i_9_18))) InVars {break_10=v_break_10_18, result_11=v_result_11_18, get_0=v_get_0_9, len_2=v_len_2_9, len_5=v_len_5_9, i_9=v_i_9_19, get_3=v_get_3_9} OutVars{break_10=v_break_10_17, result_11=v_result_11_17, get_0=v_get_0_9, len_2=v_len_2_9, len_5=v_len_5_9, i_9=v_i_9_18, get_3=v_get_3_9} AuxVars[] AssignedVars[break_10, result_11, i_9]" [2025-04-26 16:55:02,075 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:02,075 INFO L85 PathProgramCache]: Analyzing trace with hash 5201, now seen corresponding path program 1 times [2025-04-26 16:55:02,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:02,080 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200638772] [2025-04-26 16:55:02,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:02,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:02,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:02,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:02,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:02,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:02,124 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:02,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:02,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:02,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:02,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:02,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:02,144 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:02,145 INFO L85 PathProgramCache]: Analyzing trace with hash 151, now seen corresponding path program 1 times [2025-04-26 16:55:02,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:02,145 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968009107] [2025-04-26 16:55:02,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:02,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:02,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:55:02,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:55:02,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:02,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:02,182 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:02,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:55:02,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:55:02,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:02,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:02,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:02,189 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:02,190 INFO L85 PathProgramCache]: Analyzing trace with hash 161351, now seen corresponding path program 1 times [2025-04-26 16:55:02,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:02,190 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402063007] [2025-04-26 16:55:02,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:02,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:02,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:55:02,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:55:02,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:02,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:02,196 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:02,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:55:02,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:55:02,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:02,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:02,202 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:02,465 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:02,465 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:02,465 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:02,466 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:02,466 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:02,466 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:02,466 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:02,466 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:02,466 INFO L132 ssoRankerPreferences]: Filename of dumped script: word-subst.wvr.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:55:02,466 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:02,466 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:02,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:02,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:02,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:02,812 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:02,814 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:02,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:02,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:02,817 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 16:55:02,819 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 16:55:02,821 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 16:55:02,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:02,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:02,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:02,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:02,842 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:02,843 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:02,849 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:02,855 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 16:55:02,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:02,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:02,857 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 16:55:02,859 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 16:55:02,860 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 16:55:02,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:02,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:02,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:02,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:02,875 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:02,875 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:02,879 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:02,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-04-26 16:55:02,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:02,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:02,887 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 16:55:02,889 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 16:55:02,890 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 16:55:02,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:02,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:02,902 INFO L204 nArgumentSynthesizer]: 3 loop disjuncts [2025-04-26 16:55:02,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:02,927 INFO L402 nArgumentSynthesizer]: We have 30 Motzkin's Theorem applications. [2025-04-26 16:55:02,927 INFO L403 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2025-04-26 16:55:02,951 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:02,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:02,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:02,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:02,964 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 16:55:02,965 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 16:55:02,966 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 16:55:02,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:02,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:02,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:02,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:02,979 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:02,980 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:02,984 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:03,001 INFO L436 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2025-04-26 16:55:03,001 INFO L437 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-04-26 16:55:03,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:03,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:03,005 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 16:55:03,007 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 16:55:03,008 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:03,029 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 16:55:03,030 INFO L439 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-04-26 16:55:03,030 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:03,030 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(len_5, i_9) = 1*len_5 - 1*i_9 Supporting invariants [] [2025-04-26 16:55:03,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:03,039 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:03,059 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:03,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:55:03,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:55:03,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:03,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:03,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:03,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:03,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:55:03,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:55:03,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:03,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:03,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:03,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:03,087 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 16:55:03,106 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:55:03,107 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 60 states, 58 states have (on average 1.9482758620689655) internal successors, (in total 113), 59 states have internal predecessors, (113), 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 2 states, 2 states have (on average 1.5) internal successors, (in total 3), 2 states have internal predecessors, (3), 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 16:55:03,186 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 60 states, 58 states have (on average 1.9482758620689655) internal successors, (in total 113), 59 states have internal predecessors, (113), 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 2 states, 2 states have (on average 1.5) internal successors, (in total 3), 2 states have internal predecessors, (3), 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 180 states and 375 transitions. Complement of second has 5 states. [2025-04-26 16:55:03,187 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:55:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (in total 3), 2 states have internal predecessors, (3), 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 16:55:03,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 53 transitions. [2025-04-26 16:55:03,194 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 53 transitions. Stem has 2 letters. Loop has 1 letters. [2025-04-26 16:55:03,194 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:03,195 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 53 transitions. Stem has 3 letters. Loop has 1 letters. [2025-04-26 16:55:03,195 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:03,195 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 53 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:55:03,195 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:03,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 375 transitions. [2025-04-26 16:55:03,203 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 21 [2025-04-26 16:55:03,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 98 states and 215 transitions. [2025-04-26 16:55:03,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2025-04-26 16:55:03,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78 [2025-04-26 16:55:03,210 INFO L74 IsDeterministic]: Start isDeterministic. Operand 98 states and 215 transitions. [2025-04-26 16:55:03,210 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:03,210 INFO L218 hiAutomatonCegarLoop]: Abstraction has 98 states and 215 transitions. [2025-04-26 16:55:03,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 215 transitions. [2025-04-26 16:55:03,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 61. [2025-04-26 16:55:03,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 2.442622950819672) internal successors, (in total 149), 60 states have internal predecessors, (149), 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 16:55:03,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 149 transitions. [2025-04-26 16:55:03,232 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 149 transitions. [2025-04-26 16:55:03,232 INFO L438 stractBuchiCegarLoop]: Abstraction has 61 states and 149 transitions. [2025-04-26 16:55:03,232 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:55:03,232 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 149 transitions. [2025-04-26 16:55:03,233 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 13 [2025-04-26 16:55:03,233 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:03,233 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:03,233 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:55:03,233 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-04-26 16:55:03,234 INFO L752 eck$LassoCheckResult]: Stem: "[133] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[117] $Ultimate##0-->L38: Formula: (and (not v_break_10_23) (= v_count_4_9 v_count_1_9) (= v_i_9_24 0)) InVars {count_4=v_count_4_9, count_1=v_count_1_9} OutVars{break_10=v_break_10_23, count_1=v_count_1_9, count_4=v_count_4_9, i_9=v_i_9_24} AuxVars[] AssignedVars[break_10, i_9]" "[136] L121-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[121] $Ultimate##0-->L68: Formula: (and (= v_i_12_10 0) (not v_break_13_9) (= v_count_1_11 v_count_7_7)) InVars {count_7=v_count_7_7, count_1=v_count_1_11} OutVars{i_12=v_i_12_10, count_7=v_count_7_7, count_1=v_count_1_11, break_13=v_break_13_9} AuxVars[] AssignedVars[i_12, break_13]" [2025-04-26 16:55:03,234 INFO L754 eck$LassoCheckResult]: Loop: "[124] L68-->L68: Formula: (let ((.cse2 (select v_get_6_9 v_i_12_23)) (.cse3 (select v_get_0_15 v_i_12_23)) (.cse1 (not v_break_13_22))) (and (let ((.cse0 (= .cse2 .cse3))) (or (and .cse0 (not v_break_13_21) .cse1) (and (or v_break_13_22 (not .cse0)) v_break_13_21))) (= (+ v_i_12_23 1) v_i_12_22) (< v_i_12_23 v_len_8_9) (= v_result_14_17 (ite (< .cse3 .cse2) (- 1) (ite (< .cse2 .cse3) 1 v_result_14_18))) .cse1 (< v_i_12_23 v_len_2_13))) InVars {get_0=v_get_0_15, result_14=v_result_14_18, len_2=v_len_2_13, i_12=v_i_12_23, break_13=v_break_13_22, get_6=v_get_6_9, len_8=v_len_8_9} OutVars{get_0=v_get_0_15, result_14=v_result_14_17, len_2=v_len_2_13, i_12=v_i_12_22, break_13=v_break_13_21, get_6=v_get_6_9, len_8=v_len_8_9} AuxVars[] AssignedVars[result_14, i_12, break_13]" [2025-04-26 16:55:03,234 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:03,234 INFO L85 PathProgramCache]: Analyzing trace with hash 5002498, now seen corresponding path program 1 times [2025-04-26 16:55:03,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:03,234 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355012242] [2025-04-26 16:55:03,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:03,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:03,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:55:03,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:55:03,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:03,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:03,243 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:03,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:55:03,246 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:55:03,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:03,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:03,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:03,250 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:03,250 INFO L85 PathProgramCache]: Analyzing trace with hash 155, now seen corresponding path program 1 times [2025-04-26 16:55:03,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:03,250 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610905789] [2025-04-26 16:55:03,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:03,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:03,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:55:03,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:55:03,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:03,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:03,262 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:03,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:55:03,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:55:03,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:03,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:03,271 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:03,272 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:03,272 INFO L85 PathProgramCache]: Analyzing trace with hash 155077562, now seen corresponding path program 1 times [2025-04-26 16:55:03,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:03,272 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187751551] [2025-04-26 16:55:03,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:03,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:03,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:03,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:03,282 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:03,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:03,282 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:03,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:55:03,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:55:03,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:03,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:03,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:03,478 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:03,478 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:03,478 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:03,478 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:03,479 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:03,479 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:03,479 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:03,479 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:03,479 INFO L132 ssoRankerPreferences]: Filename of dumped script: word-subst.wvr.bpl_petrified1_Iteration2_Lasso [2025-04-26 16:55:03,479 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:03,479 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:03,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:03,487 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:03,493 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:03,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:03,590 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:03,594 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:03,597 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:03,685 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2025-04-26 16:55:03,819 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:03,819 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:03,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:03,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:03,821 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 16:55:03,822 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 16:55:03,824 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 16:55:03,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:03,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:03,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:03,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:03,836 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:03,836 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:03,839 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:03,846 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 16:55:03,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:03,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:03,848 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 16:55:03,850 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 16:55:03,851 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 16:55:03,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:03,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:03,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:03,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:03,862 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:03,862 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:03,865 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:03,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:03,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:03,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:03,873 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 16:55:03,874 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 16:55:03,876 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 16:55:03,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:03,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:03,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:03,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:03,887 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:03,887 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:03,889 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:03,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:03,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:03,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:03,897 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 16:55:03,899 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 16:55:03,900 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 16:55:03,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:03,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:03,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:03,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:03,912 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:03,912 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:03,916 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:03,922 INFO L436 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-04-26 16:55:03,922 INFO L437 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-04-26 16:55:03,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:03,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:03,924 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:03,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 16:55:03,927 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:03,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:03,945 INFO L439 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-04-26 16:55:03,945 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:03,945 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i_12, len_8) = -1*i_12 + 1*len_8 Supporting invariants [] [2025-04-26 16:55:03,951 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 16:55:03,951 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:03,961 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:03,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:55:03,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:55:03,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:03,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:03,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:03,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:03,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:55:03,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:55:03,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:03,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:03,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:03,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:03,978 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 16:55:03,978 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:55:03,979 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 149 transitions. cyclomatic complexity: 109 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (in total 5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:04,030 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 149 transitions. cyclomatic complexity: 109. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (in total 5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 184 states and 449 transitions. Complement of second has 4 states. [2025-04-26 16:55:04,030 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:55:04,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (in total 5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:55:04,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2025-04-26 16:55:04,031 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 4 letters. Loop has 1 letters. [2025-04-26 16:55:04,031 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:04,031 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 5 letters. Loop has 1 letters. [2025-04-26 16:55:04,031 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:04,031 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 37 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:55:04,031 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:04,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 449 transitions. [2025-04-26 16:55:04,034 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 13 [2025-04-26 16:55:04,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 114 states and 275 transitions. [2025-04-26 16:55:04,035 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2025-04-26 16:55:04,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2025-04-26 16:55:04,036 INFO L74 IsDeterministic]: Start isDeterministic. Operand 114 states and 275 transitions. [2025-04-26 16:55:04,036 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:55:04,036 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 275 transitions. [2025-04-26 16:55:04,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 275 transitions. [2025-04-26 16:55:04,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 75. [2025-04-26 16:55:04,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 75 states have (on average 2.6266666666666665) internal successors, (in total 197), 74 states have internal predecessors, (197), 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 16:55:04,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 197 transitions. [2025-04-26 16:55:04,040 INFO L240 hiAutomatonCegarLoop]: Abstraction has 75 states and 197 transitions. [2025-04-26 16:55:04,040 INFO L438 stractBuchiCegarLoop]: Abstraction has 75 states and 197 transitions. [2025-04-26 16:55:04,040 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:55:04,040 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states and 197 transitions. [2025-04-26 16:55:04,041 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 8 [2025-04-26 16:55:04,041 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:55:04,041 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:55:04,042 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-04-26 16:55:04,042 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2025-04-26 16:55:04,042 INFO L752 eck$LassoCheckResult]: Stem: "[133] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[117] $Ultimate##0-->L38: Formula: (and (not v_break_10_23) (= v_count_4_9 v_count_1_9) (= v_i_9_24 0)) InVars {count_4=v_count_4_9, count_1=v_count_1_9} OutVars{break_10=v_break_10_23, count_1=v_count_1_9, count_4=v_count_4_9, i_9=v_i_9_24} AuxVars[] AssignedVars[break_10, i_9]" "[136] L121-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[121] $Ultimate##0-->L68: Formula: (and (= v_i_12_10 0) (not v_break_13_9) (= v_count_1_11 v_count_7_7)) InVars {count_7=v_count_7_7, count_1=v_count_1_11} OutVars{i_12=v_i_12_10, count_7=v_count_7_7, count_1=v_count_1_11, break_13=v_break_13_9} AuxVars[] AssignedVars[i_12, break_13]" "[139] L122-->$Ultimate##0: 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]" "[126] $Ultimate##0-->L98: Formula: (and (= v_i_15_10 0) (not v_break_16_9) (= v_count_7_11 v_count_4_11)) InVars {count_7=v_count_7_11, count_4=v_count_4_11} OutVars{count_7=v_count_7_11, i_15=v_i_15_10, count_4=v_count_4_11, break_16=v_break_16_9} AuxVars[] AssignedVars[i_15, break_16]" [2025-04-26 16:55:04,042 INFO L754 eck$LassoCheckResult]: Loop: "[129] L98-->L98: Formula: (let ((.cse1 (not v_break_16_22)) (.cse3 (select v_get_6_15 v_i_15_23)) (.cse2 (select v_get_3_15 v_i_15_23))) (and (< v_i_15_23 v_len_5_13) (= (+ v_i_15_23 1) v_i_15_22) (< v_i_15_23 v_len_8_13) (let ((.cse0 (= .cse2 .cse3))) (or (and (or v_break_16_22 (not .cse0)) v_break_16_21) (and .cse0 .cse1 (not v_break_16_21)))) .cse1 (= v_result_17_17 (ite (< .cse2 .cse3) (- 1) (ite (< .cse3 .cse2) 1 v_result_17_18))))) InVars {i_15=v_i_15_23, result_17=v_result_17_18, len_5=v_len_5_13, get_6=v_get_6_15, len_8=v_len_8_13, break_16=v_break_16_22, get_3=v_get_3_15} OutVars{i_15=v_i_15_22, result_17=v_result_17_17, len_5=v_len_5_13, get_6=v_get_6_15, len_8=v_len_8_13, break_16=v_break_16_21, get_3=v_get_3_15} AuxVars[] AssignedVars[i_15, result_17, break_16]" [2025-04-26 16:55:04,042 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:04,043 INFO L85 PathProgramCache]: Analyzing trace with hash 512437717, now seen corresponding path program 1 times [2025-04-26 16:55:04,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:04,043 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306572137] [2025-04-26 16:55:04,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:04,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:04,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:55:04,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:55:04,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:04,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:04,047 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:04,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:55:04,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:55:04,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:04,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:04,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:04,052 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:04,052 INFO L85 PathProgramCache]: Analyzing trace with hash 160, now seen corresponding path program 1 times [2025-04-26 16:55:04,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:04,052 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944210911] [2025-04-26 16:55:04,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:04,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:04,056 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:55:04,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:55:04,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:04,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:04,062 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:04,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:55:04,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:55:04,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:04,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:04,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:04,070 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:04,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1294299828, now seen corresponding path program 1 times [2025-04-26 16:55:04,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:55:04,071 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251334617] [2025-04-26 16:55:04,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:55:04,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:55:04,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:55:04,079 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:55:04,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:04,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:04,079 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:55:04,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:55:04,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:55:04,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:04,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:55:04,088 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:55:04,273 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:55:04,273 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:55:04,273 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:55:04,273 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:55:04,273 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:55:04,273 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:04,273 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:55:04,273 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:55:04,273 INFO L132 ssoRankerPreferences]: Filename of dumped script: word-subst.wvr.bpl_petrified1_Iteration3_Lasso [2025-04-26 16:55:04,274 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:55:04,274 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:55:04,275 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:04,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:04,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:04,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:04,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:04,287 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:04,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:04,297 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:04,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:04,370 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:04,372 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:04,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:55:04,462 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2025-04-26 16:55:04,618 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:55:04,618 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:55:04,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:04,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:04,620 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:04,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 16:55:04,623 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 16:55:04,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:04,633 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:04,633 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:04,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:04,634 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:04,634 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:04,637 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:04,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-04-26 16:55:04,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:04,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:04,645 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:04,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-04-26 16:55:04,647 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 16:55:04,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:04,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:04,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:04,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:04,658 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:04,658 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:04,661 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:04,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:04,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:04,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:04,669 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:04,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-04-26 16:55:04,672 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 16:55:04,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:04,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:04,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:04,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:04,684 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:04,684 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:04,690 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:04,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:04,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:04,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:04,698 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:04,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-04-26 16:55:04,701 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 16:55:04,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:04,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:04,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:04,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:04,712 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:04,712 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:04,715 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:04,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-04-26 16:55:04,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:04,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:04,723 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:04,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-04-26 16:55:04,726 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 16:55:04,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:04,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:04,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:04,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:04,739 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:04,739 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:04,742 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:04,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-04-26 16:55:04,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:04,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:04,752 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:04,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-04-26 16:55:04,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:55:04,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:04,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:04,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:04,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:04,767 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:04,767 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:04,769 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:04,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-04-26 16:55:04,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:04,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:04,778 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:04,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-04-26 16:55:04,780 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 16:55:04,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:04,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:04,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:04,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:04,791 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:04,791 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:04,794 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:04,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-04-26 16:55:04,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:04,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:04,803 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:04,807 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 16:55:04,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-04-26 16:55:04,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:04,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:04,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:04,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:04,818 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:04,819 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:04,821 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:55:04,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-04-26 16:55:04,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:04,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:04,829 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:04,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-04-26 16:55:04,831 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:55:04,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:55:04,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:55:04,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:55:04,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:55:04,843 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:55:04,843 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:55:04,849 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:55:04,855 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:55:04,855 INFO L437 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-04-26 16:55:04,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:55:04,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:55:04,858 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:55:04,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-04-26 16:55:04,860 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:55:04,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-04-26 16:55:04,878 INFO L439 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2025-04-26 16:55:04,878 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:55:04,878 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(len_8, i_15) = 1*len_8 - 1*i_15 Supporting invariants [] [2025-04-26 16:55:04,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-04-26 16:55:04,885 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:55:04,897 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:55:04,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:55:04,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:55:04,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:04,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:04,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:55:04,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:04,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:55:04,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:55:04,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:55:04,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:55:04,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:55:04,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:55:04,915 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 16:55:04,915 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:55:04,915 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 197 transitions. cyclomatic complexity: 144 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (in total 7), 2 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 16:55:04,952 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 197 transitions. cyclomatic complexity: 144. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (in total 7), 2 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 151 states and 392 transitions. Complement of second has 4 states. [2025-04-26 16:55:04,952 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:55:04,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (in total 7), 2 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 16:55:04,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2025-04-26 16:55:04,953 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 6 letters. Loop has 1 letters. [2025-04-26 16:55:04,953 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:04,953 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 7 letters. Loop has 1 letters. [2025-04-26 16:55:04,953 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:04,953 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:55:04,953 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:55:04,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 151 states and 392 transitions. [2025-04-26 16:55:04,955 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:55:04,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 151 states to 0 states and 0 transitions. [2025-04-26 16:55:04,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:55:04,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:55:04,959 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:55:04,959 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:55:04,959 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:55:04,959 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:55:04,959 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:55:04,959 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:55:04,959 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:55:04,959 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:55:04,960 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:55:04,974 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 16:55:04,975 INFO L201 PluginConnector]: Adding new model word-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:55:04 BoogieIcfgContainer [2025-04-26 16:55:04,976 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:55:04,976 INFO L158 Benchmark]: Toolchain (without parser) took 3612.34ms. Allocated memory was 163.6MB in the beginning and 155.2MB in the end (delta: -8.4MB). Free memory was 91.2MB in the beginning and 93.9MB in the end (delta: -2.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:04,976 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 163.6MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:04,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.16ms. Allocated memory is still 163.6MB. Free memory was 91.2MB in the beginning and 89.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:04,977 INFO L158 Benchmark]: Boogie Preprocessor took 29.96ms. Allocated memory is still 163.6MB. Free memory was 89.3MB in the beginning and 88.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:04,977 INFO L158 Benchmark]: RCFGBuilder took 334.72ms. Allocated memory is still 163.6MB. Free memory was 88.2MB in the beginning and 74.0MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-04-26 16:55:04,977 INFO L158 Benchmark]: BuchiAutomizer took 3214.12ms. Allocated memory was 163.6MB in the beginning and 155.2MB in the end (delta: -8.4MB). Free memory was 73.9MB in the beginning and 93.9MB in the end (delta: -20.0MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:55:04,978 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 0.14ms. Allocated memory is still 163.6MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.16ms. Allocated memory is still 163.6MB. Free memory was 91.2MB in the beginning and 89.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 29.96ms. Allocated memory is still 163.6MB. Free memory was 89.3MB in the beginning and 88.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 334.72ms. Allocated memory is still 163.6MB. Free memory was 88.2MB in the beginning and 74.0MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * BuchiAutomizer took 3214.12ms. Allocated memory was 163.6MB in the beginning and 155.2MB in the end (delta: -8.4MB). Free memory was 73.9MB in the beginning and 93.9MB in the end (delta: -20.0MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 76 StatesRemovedByMinimization, 2 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, 90 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 19 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital105 mio100 ax100 hnf100 lsp188 ukn42 mio100 lsp77 div100 bol107 ite100 ukn100 eq155 hnf100 smp100 dnf534 smp10 tf100 neg100 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 65ms VariablesStem: 1 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 3 SupportingInvariants: 6 MotzkinApplications: 30 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.1s InitialAbstraction: Time to compute Ample Reduction [ms]: 179, Number of transitions in reduction automaton: 113, Number of states in reduction automaton: 60, Underlying: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i_9 + len_5 and consists of 4 locations. One deterministic module has affine ranking function -1 * i_12 + len_8 and consists of 3 locations. One deterministic module has affine ranking function -1 * i_15 + len_8 and consists of 3 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:55:04,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...