/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/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/clever.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:21:51,549 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:21:51,601 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:21:51,604 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:21:51,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:21:51,627 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:21:51,628 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:21:51,628 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:21:51,629 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:21:51,629 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:21:51,629 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:21:51,630 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:21:51,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:21:51,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:21:51,631 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:21:51,631 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:21:51,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:21:51,631 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:21:51,631 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:21:51,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:21:51,631 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:21:51,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:21:51,632 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:21:51,632 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:21:51,632 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:21:51,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:21:51,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:21:51,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:21:51,878 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:21:51,879 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:21:51,881 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/clever.wvr.bpl [2025-04-26 16:21:51,882 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/clever.wvr.bpl' [2025-04-26 16:21:51,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:21:51,902 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:21:51,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:21:51,902 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:21:51,902 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:21:51,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/1) ... [2025-04-26 16:21:51,929 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/1) ... [2025-04-26 16:21:51,934 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:21:51,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:21:51,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:21:51,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:21:51,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:21:51,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/1) ... [2025-04-26 16:21:51,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/1) ... [2025-04-26 16:21:51,942 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/1) ... [2025-04-26 16:21:51,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/1) ... [2025-04-26 16:21:51,943 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/1) ... [2025-04-26 16:21:51,944 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/1) ... [2025-04-26 16:21:51,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/1) ... [2025-04-26 16:21:51,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/1) ... [2025-04-26 16:21:51,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/1) ... [2025-04-26 16:21:51,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:21:51,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:21:51,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:21:51,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:21:51,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/1) ... [2025-04-26 16:21:51,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:51,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:51,988 INFO L229 MonitoredProcess]: Starting monitored process 1 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 16:21:51,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:21:52,013 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:21:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:21:52,014 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:21:52,014 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:21:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:21:52,014 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:21:52,014 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:21:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:21:52,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:21:52,015 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 16:21:52,051 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:21:52,053 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:21:52,122 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:21:52,122 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:21:52,131 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:21:52,131 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:21:52,131 INFO L201 PluginConnector]: Adding new model clever.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:21:52 BoogieIcfgContainer [2025-04-26 16:21:52,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:21:52,132 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:21:52,132 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:21:52,138 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:21:52,139 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:21:52,140 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:21:51" (1/2) ... [2025-04-26 16:21:52,141 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40598f37 and model type clever.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:21:52, skipping insertion in model container [2025-04-26 16:21:52,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:21:52,141 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "clever.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:21:52" (2/2) ... [2025-04-26 16:21:52,142 INFO L376 chiAutomizerObserver]: Analyzing ICFG clever.wvr.bpl [2025-04-26 16:21:52,183 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:21:52,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 28 transitions, 70 flow [2025-04-26 16:21:52,237 INFO L116 PetriNetUnfolderBase]: 3/24 cut-off events. [2025-04-26 16:21:52,240 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:21:52,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 24 events. 3/24 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2025-04-26 16:21:52,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 28 transitions, 70 flow [2025-04-26 16:21:52,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 24 transitions, 60 flow [2025-04-26 16:21:52,251 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 28 places, 24 transitions, 60 flow [2025-04-26 16:21:52,262 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:21:52,262 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:21:52,262 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:21:52,263 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:21:52,263 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:21:52,263 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:21:52,263 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:21:52,264 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:21:52,265 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:21:52,304 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 45 [2025-04-26 16:21:52,305 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:21:52,305 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:21:52,308 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:21:52,308 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:21:52,308 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:21:52,309 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 60 states, but on-demand construction may add more states [2025-04-26 16:21:52,311 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 45 [2025-04-26 16:21:52,311 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:21:52,311 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:21:52,311 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:21:52,311 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:21:52,318 INFO L752 eck$LassoCheckResult]: Stem: "[52] $Ultimate##0-->L43: Formula: (and (= v_i2_5 v_i1_5) (= v_i1_5 0) (= v_i1_5 v_k1_3) (= v_i1_5 v_k2_3)) InVars {i1=v_i1_5, i2=v_i2_5, k1=v_k1_3, k2=v_k2_3} OutVars{i1=v_i1_5, i2=v_i2_5, k1=v_k1_3, k2=v_k2_3} AuxVars[] AssignedVars[]" "[37] L43-->L44: Formula: (<= 0 v_m_4) InVars {m=v_m_4} OutVars{m=v_m_4} AuxVars[] AssignedVars[]" "[74] L44-->L20: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:21:52,318 INFO L754 eck$LassoCheckResult]: Loop: "[59] L20-->L21: Formula: (< v_i1_1 v_n_1) InVars {i1=v_i1_1, n=v_n_1} OutVars{i1=v_i1_1, n=v_n_1} AuxVars[] AssignedVars[]" "[61] L21-->L22-1: Formula: (= v_j1_1 0) InVars {} OutVars{j1=v_j1_1} AuxVars[] AssignedVars[j1]" "[62] L22-1-->L26: Formula: (<= v_m_2 v_j1_5) InVars {m=v_m_2, j1=v_j1_5} OutVars{m=v_m_2, j1=v_j1_5} AuxVars[] AssignedVars[]" "[64] L26-->L20: Formula: (= v_i1_2 (+ v_i1_3 1)) InVars {i1=v_i1_3} OutVars{i1=v_i1_2} AuxVars[] AssignedVars[i1]" [2025-04-26 16:21:52,322 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:52,323 INFO L85 PathProgramCache]: Analyzing trace with hash 80984, now seen corresponding path program 1 times [2025-04-26 16:21:52,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:52,330 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655742366] [2025-04-26 16:21:52,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:52,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:52,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:52,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:52,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:52,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:52,390 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:52,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:52,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:52,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:52,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:52,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:52,412 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:52,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2741797, now seen corresponding path program 1 times [2025-04-26 16:21:52,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:52,413 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406026864] [2025-04-26 16:21:52,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:52,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:52,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:21:52,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:21:52,425 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:52,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:52,425 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:52,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:21:52,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:21:52,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:52,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:52,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:52,436 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:52,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1777798908, now seen corresponding path program 1 times [2025-04-26 16:21:52,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:52,437 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893139293] [2025-04-26 16:21:52,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:52,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:52,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:21:52,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:21:52,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:52,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:52,454 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:52,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:21:52,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:21:52,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:52,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:52,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:52,551 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:52,552 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:52,552 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:52,552 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:52,552 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:21:52,552 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:52,552 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:52,552 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:52,553 INFO L132 ssoRankerPreferences]: Filename of dumped script: clever.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:21:52,553 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:52,553 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:52,563 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:52,573 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:52,586 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:52,632 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:52,633 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:21:52,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:52,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:52,637 INFO L229 MonitoredProcess]: Starting monitored process 2 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 16:21:52,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:21:52,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:52,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:52,656 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:21:52,656 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {j1=0} Honda state: {j1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:21:52,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-04-26 16:21:52,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:52,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:52,666 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 16:21:52,667 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 16:21:52,669 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:52,669 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:52,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-04-26 16:21:52,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:52,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:52,689 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 16:21:52,691 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 16:21:52,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:21:52,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:52,764 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:21:52,769 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 16:21:52,769 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:52,770 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:52,770 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:52,770 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:52,770 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:21:52,770 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:52,770 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:52,770 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:52,770 INFO L132 ssoRankerPreferences]: Filename of dumped script: clever.wvr.bpl_petrified1_Iteration1_Loop [2025-04-26 16:21:52,770 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:52,770 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:52,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:52,774 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:52,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:52,822 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:52,825 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:21:52,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:52,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:52,829 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 16:21:52,848 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 16:21:52,849 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 16:21:52,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:21:52,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:21:52,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:21:52,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:21:52,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:21:52,866 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:21:52,866 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:21:52,869 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:21:52,875 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 16:21:52,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:52,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:52,878 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 16:21:52,880 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 16:21:52,881 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 16:21:52,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:21:52,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:21:52,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:21:52,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:21:52,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:21:52,895 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:21:52,895 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:21:52,898 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:21:52,900 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:21:52,900 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:21:52,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:52,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:52,903 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 16:21:52,904 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 16:21:52,904 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:21:52,907 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:21:52,907 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 16:21:52,908 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:21:52,908 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:21:52,908 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i1, n) = -1*i1 + 1*n Supporting invariants [] [2025-04-26 16:21:52,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 16:21:52,917 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:21:52,950 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:52,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:52,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:52,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:52,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:52,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:21:52,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:52,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:21:52,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:21:52,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:52,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:52,971 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:21:52,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:53,006 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 16:21:53,054 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:21:53,060 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 60 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:53,150 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 60 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 137 states and 300 transitions. Complement of second has 7 states. [2025-04-26 16:21:53,152 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:21:53,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:53,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2025-04-26 16:21:53,163 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:21:53,164 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:53,164 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 7 letters. Loop has 4 letters. [2025-04-26 16:21:53,164 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:53,164 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 3 letters. Loop has 8 letters. [2025-04-26 16:21:53,164 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:53,165 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137 states and 300 transitions. [2025-04-26 16:21:53,169 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 36 [2025-04-26 16:21:53,172 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137 states to 102 states and 228 transitions. [2025-04-26 16:21:53,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2025-04-26 16:21:53,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 61 [2025-04-26 16:21:53,174 INFO L74 IsDeterministic]: Start isDeterministic. Operand 102 states and 228 transitions. [2025-04-26 16:21:53,174 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:21:53,174 INFO L218 hiAutomatonCegarLoop]: Abstraction has 102 states and 228 transitions. [2025-04-26 16:21:53,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 228 transitions. [2025-04-26 16:21:53,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 89. [2025-04-26 16:21:53,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 89 states have (on average 2.235955056179775) internal successors, (in total 199), 88 states have internal predecessors, (199), 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 16:21:53,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 199 transitions. [2025-04-26 16:21:53,205 INFO L240 hiAutomatonCegarLoop]: Abstraction has 89 states and 199 transitions. [2025-04-26 16:21:53,206 INFO L438 stractBuchiCegarLoop]: Abstraction has 89 states and 199 transitions. [2025-04-26 16:21:53,206 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:21:53,206 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 199 transitions. [2025-04-26 16:21:53,209 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 36 [2025-04-26 16:21:53,209 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:21:53,209 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:21:53,209 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:21:53,209 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:21:53,210 INFO L752 eck$LassoCheckResult]: Stem: "[52] $Ultimate##0-->L43: Formula: (and (= v_i2_5 v_i1_5) (= v_i1_5 0) (= v_i1_5 v_k1_3) (= v_i1_5 v_k2_3)) InVars {i1=v_i1_5, i2=v_i2_5, k1=v_k1_3, k2=v_k2_3} OutVars{i1=v_i1_5, i2=v_i2_5, k1=v_k1_3, k2=v_k2_3} AuxVars[] AssignedVars[]" "[37] L43-->L44: Formula: (<= 0 v_m_4) InVars {m=v_m_4} OutVars{m=v_m_4} AuxVars[] AssignedVars[]" "[74] L44-->L20: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[77] L44-1-->L33: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:21:53,210 INFO L754 eck$LassoCheckResult]: Loop: "[68] L33-->L34: Formula: (< v_i2_1 v_n_3) InVars {i2=v_i2_1, n=v_n_3} OutVars{i2=v_i2_1, n=v_n_3} AuxVars[] AssignedVars[]" "[70] L34-->L35: Formula: (= v_k2_1 (+ v_k2_2 v_m_3)) InVars {m=v_m_3, k2=v_k2_2} OutVars{m=v_m_3, k2=v_k2_1} AuxVars[] AssignedVars[k2]" "[71] L35-->L33: Formula: (= v_i2_2 (+ v_i2_3 1)) InVars {i2=v_i2_3} OutVars{i2=v_i2_2} AuxVars[] AssignedVars[i2]" [2025-04-26 16:21:53,210 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:53,210 INFO L85 PathProgramCache]: Analyzing trace with hash 2510581, now seen corresponding path program 1 times [2025-04-26 16:21:53,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:53,211 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369444458] [2025-04-26 16:21:53,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:53,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:53,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:21:53,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:21:53,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:53,217 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:53,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:21:53,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:21:53,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:53,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:53,223 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:53,223 INFO L85 PathProgramCache]: Analyzing trace with hash 97380, now seen corresponding path program 1 times [2025-04-26 16:21:53,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:53,224 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137249811] [2025-04-26 16:21:53,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:53,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:53,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:53,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:53,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:53,226 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:53,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:53,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:53,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:53,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:53,229 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:53,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1778342128, now seen corresponding path program 1 times [2025-04-26 16:21:53,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:53,229 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68345028] [2025-04-26 16:21:53,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:53,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:53,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:21:53,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:21:53,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:53,234 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:53,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:21:53,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:21:53,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:53,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:53,257 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:53,257 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:53,257 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:53,257 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:53,257 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:21:53,257 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,257 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:53,257 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:53,257 INFO L132 ssoRankerPreferences]: Filename of dumped script: clever.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:21:53,257 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:53,257 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:53,258 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:53,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:53,288 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:53,288 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:21:53,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,292 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 16:21:53,293 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 16:21:53,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:53,294 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:53,305 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:21:53,306 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {m=0, k2=0} Honda state: {m=0, k2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:21:53,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:21:53,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,313 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 16:21:53,314 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 16:21:53,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:53,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:53,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 16:21:53,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,334 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 16:21:53,335 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 16:21:53,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:21:53,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:53,405 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:21:53,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-04-26 16:21:53,410 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:53,410 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:53,410 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:53,410 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:53,410 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:21:53,410 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,410 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:53,410 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:53,410 INFO L132 ssoRankerPreferences]: Filename of dumped script: clever.wvr.bpl_petrified1_Iteration2_Loop [2025-04-26 16:21:53,410 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:53,410 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:53,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:53,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:53,438 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:53,439 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:21:53,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,441 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 16:21:53,442 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 16:21:53,444 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 16:21:53,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:21:53,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:21:53,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:21:53,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:21:53,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:21:53,455 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:21:53,455 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:21:53,457 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:21:53,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-04-26 16:21:53,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,467 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 16:21:53,468 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 16:21:53,470 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 16:21:53,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:21:53,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:21:53,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:21:53,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:21:53,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:21:53,482 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:21:53,482 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:21:53,484 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:21:53,487 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:21:53,487 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:21:53,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,489 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 16:21:53,491 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 16:21:53,492 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:21:53,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-04-26 16:21:53,496 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:21:53,496 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:21:53,496 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(i2, n) = -1*i2 + 1*n Supporting invariants [] [2025-04-26 16:21:53,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:21:53,504 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:21:53,517 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:53,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:21:53,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:21:53,523 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:53,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:21:53,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:53,530 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:53,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:53,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:53,532 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:21:53,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:53,549 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 16:21:53,550 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:21:53,550 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 199 transitions. cyclomatic complexity: 124 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:53,593 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 199 transitions. cyclomatic complexity: 124. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 214 states and 530 transitions. Complement of second has 6 states. [2025-04-26 16:21:53,596 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:21:53,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:53,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2025-04-26 16:21:53,598 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 4 letters. Loop has 3 letters. [2025-04-26 16:21:53,598 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:53,598 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 7 letters. Loop has 3 letters. [2025-04-26 16:21:53,598 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:53,598 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 4 letters. Loop has 6 letters. [2025-04-26 16:21:53,598 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:53,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 530 transitions. [2025-04-26 16:21:53,603 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2025-04-26 16:21:53,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 141 states and 347 transitions. [2025-04-26 16:21:53,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2025-04-26 16:21:53,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2025-04-26 16:21:53,605 INFO L74 IsDeterministic]: Start isDeterministic. Operand 141 states and 347 transitions. [2025-04-26 16:21:53,605 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:21:53,605 INFO L218 hiAutomatonCegarLoop]: Abstraction has 141 states and 347 transitions. [2025-04-26 16:21:53,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 347 transitions. [2025-04-26 16:21:53,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 127. [2025-04-26 16:21:53,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 127 states have (on average 2.4803149606299213) internal successors, (in total 315), 126 states have internal predecessors, (315), 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 16:21:53,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 315 transitions. [2025-04-26 16:21:53,615 INFO L240 hiAutomatonCegarLoop]: Abstraction has 127 states and 315 transitions. [2025-04-26 16:21:53,615 INFO L438 stractBuchiCegarLoop]: Abstraction has 127 states and 315 transitions. [2025-04-26 16:21:53,615 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:21:53,615 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 127 states and 315 transitions. [2025-04-26 16:21:53,616 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2025-04-26 16:21:53,617 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:21:53,617 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:21:53,617 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:21:53,617 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:21:53,617 INFO L752 eck$LassoCheckResult]: Stem: "[52] $Ultimate##0-->L43: Formula: (and (= v_i2_5 v_i1_5) (= v_i1_5 0) (= v_i1_5 v_k1_3) (= v_i1_5 v_k2_3)) InVars {i1=v_i1_5, i2=v_i2_5, k1=v_k1_3, k2=v_k2_3} OutVars{i1=v_i1_5, i2=v_i2_5, k1=v_k1_3, k2=v_k2_3} AuxVars[] AssignedVars[]" "[37] L43-->L44: Formula: (<= 0 v_m_4) InVars {m=v_m_4} OutVars{m=v_m_4} AuxVars[] AssignedVars[]" "[74] L44-->L20: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[59] L20-->L21: Formula: (< v_i1_1 v_n_1) InVars {i1=v_i1_1, n=v_n_1} OutVars{i1=v_i1_1, n=v_n_1} AuxVars[] AssignedVars[]" "[61] L21-->L22-1: Formula: (= v_j1_1 0) InVars {} OutVars{j1=v_j1_1} AuxVars[] AssignedVars[j1]" [2025-04-26 16:21:53,617 INFO L754 eck$LassoCheckResult]: Loop: "[63] L22-1-->L23: Formula: (< v_j1_2 v_m_1) InVars {m=v_m_1, j1=v_j1_2} OutVars{m=v_m_1, j1=v_j1_2} AuxVars[] AssignedVars[]" "[65] L23-->L24: Formula: (= v_k1_1 (+ v_k1_2 1)) InVars {k1=v_k1_2} OutVars{k1=v_k1_1} AuxVars[] AssignedVars[k1]" "[66] L24-->L22-1: Formula: (= (+ v_j1_4 1) v_j1_3) InVars {j1=v_j1_4} OutVars{j1=v_j1_3} AuxVars[] AssignedVars[j1]" [2025-04-26 16:21:53,618 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:53,618 INFO L85 PathProgramCache]: Analyzing trace with hash 77827514, now seen corresponding path program 1 times [2025-04-26 16:21:53,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:53,618 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18892728] [2025-04-26 16:21:53,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:53,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:53,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:21:53,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:21:53,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:53,621 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:53,622 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:21:53,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:21:53,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:53,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:53,624 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:53,624 INFO L85 PathProgramCache]: Analyzing trace with hash 92415, now seen corresponding path program 1 times [2025-04-26 16:21:53,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:53,624 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616568675] [2025-04-26 16:21:53,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:53,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:53,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:53,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:53,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:53,627 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:53,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:53,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:53,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:53,631 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:53,632 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:53,632 INFO L85 PathProgramCache]: Analyzing trace with hash -722807642, now seen corresponding path program 1 times [2025-04-26 16:21:53,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:53,632 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745673827] [2025-04-26 16:21:53,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:53,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:53,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:21:53,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:21:53,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:53,637 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:53,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:21:53,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:21:53,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:53,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:53,671 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:53,671 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:53,671 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:53,671 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:53,671 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:21:53,671 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,671 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:53,671 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:53,671 INFO L132 ssoRankerPreferences]: Filename of dumped script: clever.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:21:53,671 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:53,671 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:53,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:53,675 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:53,701 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:53,701 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:21:53,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,703 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 16:21:53,705 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 16:21:53,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:53,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:53,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-04-26 16:21:53,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,724 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 16:21:53,724 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 16:21:53,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:21:53,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:53,747 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:21:53,747 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {k1=0} Honda state: {k1=0} Generalized eigenvectors: [{k1=7}, {k1=2}, {k1=-8}] Lambdas: [1, 5, 1] Nus: [0, 1] [2025-04-26 16:21:53,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-04-26 16:21:53,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,775 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 16:21:53,777 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 16:21:53,778 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:53,778 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:53,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-04-26 16:21:53,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,796 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 16:21:53,796 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 16:21:53,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:21:53,797 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:53,864 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:21:53,869 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 16:21:53,869 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:53,869 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:53,869 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:53,869 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:53,869 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:21:53,869 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,869 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:53,870 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:53,870 INFO L132 ssoRankerPreferences]: Filename of dumped script: clever.wvr.bpl_petrified1_Iteration3_Loop [2025-04-26 16:21:53,870 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:53,870 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:53,870 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:53,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:53,911 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:53,911 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:21:53,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,913 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 16:21:53,913 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 16:21:53,914 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 16:21:53,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:21:53,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:21:53,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:21:53,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:21:53,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:21:53,925 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:21:53,925 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:21:53,927 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:21:53,933 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 16:21:53,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,935 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 16:21:53,937 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 16:21:53,938 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 16:21:53,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:21:53,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:21:53,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:21:53,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:21:53,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:21:53,949 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:21:53,949 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:21:53,951 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:21:53,952 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:21:53,953 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:21:53,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:53,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:53,954 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 16:21:53,956 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 16:21:53,957 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:21:53,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-04-26 16:21:53,960 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:21:53,960 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:21:53,960 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(j1, m) = -1*j1 + 1*m Supporting invariants [] [2025-04-26 16:21:53,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-04-26 16:21:53,969 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:21:53,983 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:53,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:21:53,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:21:53,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:53,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:53,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:21:53,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:54,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:54,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:54,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:54,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:54,007 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:21:54,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:54,030 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 16:21:54,031 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:21:54,031 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 127 states and 315 transitions. cyclomatic complexity: 204 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:54,081 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 127 states and 315 transitions. cyclomatic complexity: 204. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 467 states and 1139 transitions. Complement of second has 7 states. [2025-04-26 16:21:54,084 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:21:54,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:54,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2025-04-26 16:21:54,085 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 16:21:54,085 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:54,085 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 8 letters. Loop has 3 letters. [2025-04-26 16:21:54,085 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:54,085 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 5 letters. Loop has 6 letters. [2025-04-26 16:21:54,085 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:54,085 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 467 states and 1139 transitions. [2025-04-26 16:21:54,093 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2025-04-26 16:21:54,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 467 states to 247 states and 608 transitions. [2025-04-26 16:21:54,095 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2025-04-26 16:21:54,095 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2025-04-26 16:21:54,095 INFO L74 IsDeterministic]: Start isDeterministic. Operand 247 states and 608 transitions. [2025-04-26 16:21:54,096 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:21:54,096 INFO L218 hiAutomatonCegarLoop]: Abstraction has 247 states and 608 transitions. [2025-04-26 16:21:54,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states and 608 transitions. [2025-04-26 16:21:54,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 177. [2025-04-26 16:21:54,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 177 states have (on average 2.519774011299435) internal successors, (in total 446), 176 states have internal predecessors, (446), 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 16:21:54,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 446 transitions. [2025-04-26 16:21:54,105 INFO L240 hiAutomatonCegarLoop]: Abstraction has 177 states and 446 transitions. [2025-04-26 16:21:54,105 INFO L438 stractBuchiCegarLoop]: Abstraction has 177 states and 446 transitions. [2025-04-26 16:21:54,105 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:21:54,105 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 177 states and 446 transitions. [2025-04-26 16:21:54,110 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2025-04-26 16:21:54,110 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:21:54,110 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:21:54,110 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2025-04-26 16:21:54,110 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:21:54,111 INFO L752 eck$LassoCheckResult]: Stem: "[52] $Ultimate##0-->L43: Formula: (and (= v_i2_5 v_i1_5) (= v_i1_5 0) (= v_i1_5 v_k1_3) (= v_i1_5 v_k2_3)) InVars {i1=v_i1_5, i2=v_i2_5, k1=v_k1_3, k2=v_k2_3} OutVars{i1=v_i1_5, i2=v_i2_5, k1=v_k1_3, k2=v_k2_3} AuxVars[] AssignedVars[]" "[37] L43-->L44: Formula: (<= 0 v_m_4) InVars {m=v_m_4} OutVars{m=v_m_4} AuxVars[] AssignedVars[]" "[74] L44-->L20: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[59] L20-->L21: Formula: (< v_i1_1 v_n_1) InVars {i1=v_i1_1, n=v_n_1} OutVars{i1=v_i1_1, n=v_n_1} AuxVars[] AssignedVars[]" "[61] L21-->L22-1: Formula: (= v_j1_1 0) InVars {} OutVars{j1=v_j1_1} AuxVars[] AssignedVars[j1]" "[62] L22-1-->L26: Formula: (<= v_m_2 v_j1_5) InVars {m=v_m_2, j1=v_j1_5} OutVars{m=v_m_2, j1=v_j1_5} AuxVars[] AssignedVars[]" "[64] L26-->L20: Formula: (= v_i1_2 (+ v_i1_3 1)) InVars {i1=v_i1_3} OutVars{i1=v_i1_2} AuxVars[] AssignedVars[i1]" "[59] L20-->L21: Formula: (< v_i1_1 v_n_1) InVars {i1=v_i1_1, n=v_n_1} OutVars{i1=v_i1_1, n=v_n_1} AuxVars[] AssignedVars[]" "[61] L21-->L22-1: Formula: (= v_j1_1 0) InVars {} OutVars{j1=v_j1_1} AuxVars[] AssignedVars[j1]" [2025-04-26 16:21:54,111 INFO L754 eck$LassoCheckResult]: Loop: "[63] L22-1-->L23: Formula: (< v_j1_2 v_m_1) InVars {m=v_m_1, j1=v_j1_2} OutVars{m=v_m_1, j1=v_j1_2} AuxVars[] AssignedVars[]" "[65] L23-->L24: Formula: (= v_k1_1 (+ v_k1_2 1)) InVars {k1=v_k1_2} OutVars{k1=v_k1_1} AuxVars[] AssignedVars[k1]" "[66] L24-->L22-1: Formula: (= (+ v_j1_4 1) v_j1_3) InVars {j1=v_j1_4} OutVars{j1=v_j1_3} AuxVars[] AssignedVars[j1]" [2025-04-26 16:21:54,111 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:54,111 INFO L85 PathProgramCache]: Analyzing trace with hash -932231330, now seen corresponding path program 2 times [2025-04-26 16:21:54,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:54,111 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911995645] [2025-04-26 16:21:54,111 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:21:54,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:54,116 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 9 statements into 2 equivalence classes. [2025-04-26 16:21:54,118 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:21:54,119 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-26 16:21:54,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:54,119 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:54,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:21:54,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:21:54,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:54,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:54,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:54,124 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:54,124 INFO L85 PathProgramCache]: Analyzing trace with hash 92415, now seen corresponding path program 2 times [2025-04-26 16:21:54,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:54,124 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860649209] [2025-04-26 16:21:54,124 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:21:54,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:54,126 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:54,126 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:54,126 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:21:54,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:54,127 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:21:54,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:54,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:54,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:54,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:21:54,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:21:54,129 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:54,129 INFO L85 PathProgramCache]: Analyzing trace with hash -844953470, now seen corresponding path program 1 times [2025-04-26 16:21:54,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:21:54,129 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723694370] [2025-04-26 16:21:54,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:54,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:21:54,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 16:21:54,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 16:21:54,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:54,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:54,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:21:54,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:21:54,281 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723694370] [2025-04-26 16:21:54,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723694370] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-26 16:21:54,281 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814305678] [2025-04-26 16:21:54,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:21:54,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-26 16:21:54,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:54,288 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-26 16:21:54,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-04-26 16:21:54,309 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-26 16:21:54,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-26 16:21:54,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:54,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:54,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:21:54,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:54,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:21:54,357 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-26 16:21:54,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:21:54,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814305678] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-26 16:21:54,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-26 16:21:54,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2025-04-26 16:21:54,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472607445] [2025-04-26 16:21:54,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-26 16:21:54,406 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:54,406 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:54,406 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:54,406 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:54,406 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:21:54,406 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:54,406 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:54,406 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:54,406 INFO L132 ssoRankerPreferences]: Filename of dumped script: clever.wvr.bpl_petrified1_Iteration4_Loop [2025-04-26 16:21:54,406 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:54,406 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:54,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:54,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:54,432 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:54,432 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:21:54,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:54,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:54,435 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 16:21:54,436 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 16:21:54,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:21:54,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:54,453 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 16:21:54,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:54,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:54,455 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:21:54,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-04-26 16:21:54,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:21:54,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:21:54,523 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:21:54,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-04-26 16:21:54,529 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:21:54,529 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:21:54,529 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:21:54,529 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:21:54,529 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:21:54,529 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:54,529 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:21:54,529 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:21:54,529 INFO L132 ssoRankerPreferences]: Filename of dumped script: clever.wvr.bpl_petrified1_Iteration4_Loop [2025-04-26 16:21:54,529 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:21:54,529 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:21:54,530 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:54,535 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:21:54,553 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:21:54,554 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:21:54,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:54,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:54,556 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:21:54,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-04-26 16:21:54,559 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 16:21:54,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:21:54,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:21:54,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:21:54,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:21:54,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:21:54,570 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:21:54,570 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:21:54,572 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:21:54,574 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:21:54,574 INFO L437 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:21:54,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:21:54,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:21:54,576 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:21:54,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-04-26 16:21:54,577 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:21:54,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-04-26 16:21:54,580 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:21:54,580 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:21:54,580 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(j1, m) = -1*j1 + 1*m Supporting invariants [] [2025-04-26 16:21:54,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-04-26 16:21:54,585 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:21:54,609 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:54,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:21:54,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:21:54,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:54,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:54,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:21:54,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:54,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:54,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:54,633 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:54,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:54,633 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:21:54,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:54,645 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 16:21:54,646 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:21:54,646 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 177 states and 446 transitions. cyclomatic complexity: 293 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:54,678 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 177 states and 446 transitions. cyclomatic complexity: 293. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 350 states and 838 transitions. Complement of second has 7 states. [2025-04-26 16:21:54,681 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:21:54,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:54,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2025-04-26 16:21:54,682 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 9 letters. Loop has 3 letters. [2025-04-26 16:21:54,682 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:54,682 INFO L699 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-04-26 16:21:54,692 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:54,695 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:21:54,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:21:54,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:54,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:54,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:21:54,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:54,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:54,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:54,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:54,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:54,709 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:21:54,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:54,722 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 16:21:54,722 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:21:54,722 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 177 states and 446 transitions. cyclomatic complexity: 293 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:54,746 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 177 states and 446 transitions. cyclomatic complexity: 293. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 350 states and 838 transitions. Complement of second has 7 states. [2025-04-26 16:21:54,746 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:21:54,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:54,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2025-04-26 16:21:54,747 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 9 letters. Loop has 3 letters. [2025-04-26 16:21:54,747 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:54,747 INFO L699 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-04-26 16:21:54,755 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:21:54,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-26 16:21:54,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-26 16:21:54,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:54,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:54,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:21:54,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:54,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:21:54,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:21:54,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:21:54,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:21:54,786 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:21:54,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:21:54,798 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 16:21:54,798 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:21:54,798 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 177 states and 446 transitions. cyclomatic complexity: 293 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:54,824 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 177 states and 446 transitions. cyclomatic complexity: 293. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 392 states and 973 transitions. Complement of second has 6 states. [2025-04-26 16:21:54,824 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:21:54,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (in total 11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:21:54,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2025-04-26 16:21:54,825 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 43 transitions. Stem has 9 letters. Loop has 3 letters. [2025-04-26 16:21:54,825 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:54,825 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 43 transitions. Stem has 12 letters. Loop has 3 letters. [2025-04-26 16:21:54,825 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:54,825 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 43 transitions. Stem has 9 letters. Loop has 6 letters. [2025-04-26 16:21:54,826 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:21:54,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 392 states and 973 transitions. [2025-04-26 16:21:54,832 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:21:54,833 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 392 states to 0 states and 0 transitions. [2025-04-26 16:21:54,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:21:54,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:21:54,833 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:21:54,833 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:21:54,833 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:21:54,833 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:21:54,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:21:54,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-26 16:21:54,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-04-26 16:21:54,835 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (in total 21), 9 states have internal predecessors, (21), 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 16:21:54,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:21:54,836 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-04-26 16:21:54,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-04-26 16:21:54,836 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:21:54,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-04-26 16:21:54,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:21:54,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:21:54,837 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:21:54,837 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:21:54,837 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:21:54,837 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:21:54,837 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-26 16:21:54,837 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:21:54,837 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 16:21:54,837 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:21:54,837 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:21:54,838 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:21:54,842 INFO L201 PluginConnector]: Adding new model clever.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:21:54 BoogieIcfgContainer [2025-04-26 16:21:54,842 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:21:54,842 INFO L158 Benchmark]: Toolchain (without parser) took 2940.66ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 85.4MB in the beginning and 88.7MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:21:54,842 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.92ms. Allocated memory is still 159.4MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:21:54,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.21ms. Allocated memory is still 159.4MB. Free memory was 85.4MB in the beginning and 83.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:21:54,843 INFO L158 Benchmark]: Boogie Preprocessor took 22.56ms. Allocated memory is still 159.4MB. Free memory was 83.5MB in the beginning and 82.5MB in the end (delta: 967.2kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:21:54,843 INFO L158 Benchmark]: RCFGBuilder took 171.98ms. Allocated memory is still 159.4MB. Free memory was 82.5MB in the beginning and 73.5MB in the end (delta: 9.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-26 16:21:54,843 INFO L158 Benchmark]: BuchiAutomizer took 2709.71ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 73.4MB in the beginning and 88.7MB in the end (delta: -15.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:21:54,844 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 0.92ms. Allocated memory is still 159.4MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.21ms. Allocated memory is still 159.4MB. Free memory was 85.4MB in the beginning and 83.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 22.56ms. Allocated memory is still 159.4MB. Free memory was 83.5MB in the beginning and 82.5MB in the end (delta: 967.2kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 171.98ms. Allocated memory is still 159.4MB. Free memory was 82.5MB in the beginning and 73.5MB in the end (delta: 9.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 2709.71ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 73.4MB in the beginning and 88.7MB in the end (delta: -15.3MB). 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 2.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 97 StatesRemovedByMinimization, 3 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, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 178 mSDsluCounter, 233 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 132 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function n + -1 * i1 and consists of 5 locations. One deterministic module has affine ranking function -1 * i2 + n and consists of 4 locations. One deterministic module has affine ranking function -1 * j1 + m and consists of 4 locations. One nondeterministic module has affine ranking function -1 * j1 + m and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 9 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:21:54,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-04-26 16:21:55,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...