/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 /storage/cav23-termute-examples/3_thr/complex_thr1_3.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:41,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:42,045 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:42,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:42,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:42,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:42,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:42,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:42,073 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:42,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:42,074 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:42,074 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:42,074 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:42,074 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:42,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:42,075 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:42,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:42,076 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:42,076 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:42,076 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:42,076 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:42,076 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:42,076 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:42,076 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:42,076 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:42,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:42,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:42,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:42,312 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:42,312 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:42,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/3_thr/complex_thr1_3.c.bpl [2025-02-17 22:45:42,317 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/3_thr/complex_thr1_3.c.bpl' [2025-02-17 22:45:42,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:42,332 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:42,333 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:42,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:42,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:42,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/1) ... [2025-02-17 22:45:42,345 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/1) ... [2025-02-17 22:45:42,350 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:42,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:42,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:42,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:42,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:42,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/1) ... [2025-02-17 22:45:42,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/1) ... [2025-02-17 22:45:42,359 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/1) ... [2025-02-17 22:45:42,359 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/1) ... [2025-02-17 22:45:42,361 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/1) ... [2025-02-17 22:45:42,361 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/1) ... [2025-02-17 22:45:42,364 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/1) ... [2025-02-17 22:45:42,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/1) ... [2025-02-17 22:45:42,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/1) ... [2025-02-17 22:45:42,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:42,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:42,367 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:42,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:42,367 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/1) ... [2025-02-17 22:45:42,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:42,394 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) [2025-02-17 22:45:42,396 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 [2025-02-17 22:45:42,417 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:42,418 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:42,418 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:45:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:45:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:45:42,418 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:42,419 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:45:42,453 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:42,455 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:42,523 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:42,523 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:42,533 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:42,533 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:42,533 INFO L201 PluginConnector]: Adding new model complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:42 BoogieIcfgContainer [2025-02-17 22:45:42,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:42,534 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:42,534 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:42,540 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:42,540 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:42,541 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:42" (1/2) ... [2025-02-17 22:45:42,542 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1de87f7d and model type complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:42, skipping insertion in model container [2025-02-17 22:45:42,542 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:42,542 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:42" (2/2) ... [2025-02-17 22:45:42,544 INFO L363 chiAutomizerObserver]: Analyzing ICFG complex_thr1_3.c.bpl [2025-02-17 22:45:42,606 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-17 22:45:42,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 34 transitions, 89 flow [2025-02-17 22:45:42,658 INFO L124 PetriNetUnfolderBase]: 5/28 cut-off events. [2025-02-17 22:45:42,661 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-17 22:45:42,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 28 events. 5/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-02-17 22:45:42,665 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 34 transitions, 89 flow [2025-02-17 22:45:42,667 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 28 transitions, 74 flow [2025-02-17 22:45:42,676 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:42,677 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:42,677 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:42,677 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:42,677 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:42,677 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:42,677 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:42,677 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:42,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:45:42,744 INFO L131 ngComponentsAnalysis]: Automaton has 62 accepting balls. 210 [2025-02-17 22:45:42,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:42,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:42,747 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:42,747 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:45:42,747 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:45:42,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 253 states, but on-demand construction may add more states [2025-02-17 22:45:42,754 INFO L131 ngComponentsAnalysis]: Automaton has 62 accepting balls. 210 [2025-02-17 22:45:42,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:42,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:42,755 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:42,755 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:45:42,758 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[100] L13-->L44: 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]" [2025-02-17 22:45:42,759 INFO L754 eck$LassoCheckResult]: Loop: "[88] L44-->L46: Formula: (< v_x_4 v_y_5) InVars {y=v_y_5, x=v_x_4} OutVars{y=v_y_5, x=v_x_4} AuxVars[] AssignedVars[]" "[90] L46-->L44: Formula: (= (+ v_x_6 1) v_x_5) InVars {x=v_x_6} OutVars{x=v_x_5} AuxVars[] AssignedVars[x]" [2025-02-17 22:45:42,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:42,762 INFO L85 PathProgramCache]: Analyzing trace with hash 4068, now seen corresponding path program 1 times [2025-02-17 22:45:42,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:42,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222205627] [2025-02-17 22:45:42,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:42,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:42,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:42,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:42,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:42,816 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:42,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:42,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:42,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:42,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:42,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:42,833 INFO L85 PathProgramCache]: Analyzing trace with hash 3779, now seen corresponding path program 1 times [2025-02-17 22:45:42,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:42,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827044246] [2025-02-17 22:45:42,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:42,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:42,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:42,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:42,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:42,839 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:42,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:42,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:42,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:42,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:42,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:42,844 INFO L85 PathProgramCache]: Analyzing trace with hash 3912166, now seen corresponding path program 1 times [2025-02-17 22:45:42,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:42,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613739897] [2025-02-17 22:45:42,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:42,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:42,847 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:42,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:42,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:42,850 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:42,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:42,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:42,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:42,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:42,891 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:42,892 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:42,892 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:42,892 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:42,892 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:42,892 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,892 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:42,892 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:42,892 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:42,892 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:42,892 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:42,902 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:42,943 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:42,944 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:42,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:42,948 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) [2025-02-17 22:45:42,950 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 [2025-02-17 22:45:42,951 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:42,951 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:42,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-17 22:45:42,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:42,976 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) [2025-02-17 22:45:42,978 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 [2025-02-17 22:45:42,979 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:42,979 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:43,055 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:43,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-17 22:45:43,060 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:43,060 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:43,060 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:43,060 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:43,060 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:43,060 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,060 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:43,060 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:43,060 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:43,060 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:43,060 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:43,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,086 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:43,089 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:43,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,092 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) [2025-02-17 22:45:43,093 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 [2025-02-17 22:45:43,094 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 [2025-02-17 22:45:43,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:43,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:43,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:43,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:43,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:43,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:43,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:43,113 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:43,118 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:43,118 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:43,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,121 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) [2025-02-17 22:45:43,123 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 [2025-02-17 22:45:43,124 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:43,124 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:43,125 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:43,125 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x, y) = -1*x + 1*y Supporting invariants [] [2025-02-17 22:45:43,130 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 [2025-02-17 22:45:43,133 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:43,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:43,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:43,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:43,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:43,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:43,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:43,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:43,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:43,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:43,169 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:43,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:43,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-17 22:45:43,233 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 [2025-02-17 22:45:43,235 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 253 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:43,412 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 253 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 737 states and 2606 transitions. Complement of second has 6 states. [2025-02-17 22:45:43,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:43,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:43,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2025-02-17 22:45:43,425 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 2 letters. Loop has 2 letters. [2025-02-17 22:45:43,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:43,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-17 22:45:43,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:43,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 81 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:45:43,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:43,426 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 737 states and 2606 transitions. [2025-02-17 22:45:43,441 INFO L131 ngComponentsAnalysis]: Automaton has 59 accepting balls. 176 [2025-02-17 22:45:43,451 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 737 states to 549 states and 1927 transitions. [2025-02-17 22:45:43,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 233 [2025-02-17 22:45:43,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 391 [2025-02-17 22:45:43,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 549 states and 1927 transitions. [2025-02-17 22:45:43,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:43,454 INFO L218 hiAutomatonCegarLoop]: Abstraction has 549 states and 1927 transitions. [2025-02-17 22:45:43,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states and 1927 transitions. [2025-02-17 22:45:43,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 394. [2025-02-17 22:45:43,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 394 states have (on average 3.6522842639593907) internal successors, (1439), 393 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:43,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1439 transitions. [2025-02-17 22:45:43,495 INFO L240 hiAutomatonCegarLoop]: Abstraction has 394 states and 1439 transitions. [2025-02-17 22:45:43,495 INFO L432 stractBuchiCegarLoop]: Abstraction has 394 states and 1439 transitions. [2025-02-17 22:45:43,495 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:45:43,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 394 states and 1439 transitions. [2025-02-17 22:45:43,498 INFO L131 ngComponentsAnalysis]: Automaton has 59 accepting balls. 176 [2025-02-17 22:45:43,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:43,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:43,498 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:43,498 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:45:43,499 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[100] L13-->L44: 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]" "[103] L14-->L53: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" [2025-02-17 22:45:43,499 INFO L754 eck$LassoCheckResult]: Loop: "[92] L53-->L55: Formula: (< v_x2_1 v_y_7) InVars {y=v_y_7, x2=v_x2_1} OutVars{y=v_y_7, x2=v_x2_1} AuxVars[] AssignedVars[]" "[94] L55-->L53: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-02-17 22:45:43,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:43,499 INFO L85 PathProgramCache]: Analyzing trace with hash 126211, now seen corresponding path program 1 times [2025-02-17 22:45:43,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:43,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575738533] [2025-02-17 22:45:43,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:43,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:43,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:43,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:43,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,503 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:43,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:43,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:43,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:43,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:43,507 INFO L85 PathProgramCache]: Analyzing trace with hash 3907, now seen corresponding path program 1 times [2025-02-17 22:45:43,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:43,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859707130] [2025-02-17 22:45:43,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:43,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:43,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:43,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:43,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,510 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:43,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:43,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:43,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:43,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:43,513 INFO L85 PathProgramCache]: Analyzing trace with hash 121291717, now seen corresponding path program 1 times [2025-02-17 22:45:43,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:43,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944613599] [2025-02-17 22:45:43,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:43,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:43,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:43,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:43,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,520 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:43,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:43,522 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:43,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:43,536 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:43,537 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:43,537 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:43,537 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:43,537 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:43,537 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,537 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:43,537 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:43,537 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:43,537 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:43,537 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:43,537 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,555 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:43,555 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:43,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,557 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) [2025-02-17 22:45:43,558 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 [2025-02-17 22:45:43,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:43,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:43,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:43,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,579 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) [2025-02-17 22:45:43,579 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 [2025-02-17 22:45:43,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:43,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:43,648 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:43,652 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 [2025-02-17 22:45:43,652 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:43,652 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:43,652 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:43,652 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:43,653 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:43,653 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,653 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:43,653 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:43,653 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:43,653 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:43,653 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:43,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,674 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:43,675 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:43,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,677 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) [2025-02-17 22:45:43,678 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 [2025-02-17 22:45:43,679 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 [2025-02-17 22:45:43,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:43,690 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:43,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:43,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:43,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:43,691 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:43,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:43,693 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:43,698 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:43,698 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:43,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,700 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) [2025-02-17 22:45:43,701 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 [2025-02-17 22:45:43,702 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:43,702 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:43,702 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:43,702 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, y) = -1*x2 + 1*y Supporting invariants [] [2025-02-17 22:45:43,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:43,709 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:43,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:43,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:43,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:43,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:43,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:43,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:43,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:43,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:43,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:43,740 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:43,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:43,758 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 [2025-02-17 22:45:43,758 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 394 states and 1439 transitions. cyclomatic complexity: 1129 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:43,832 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 394 states and 1439 transitions. cyclomatic complexity: 1129. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1062 states and 4032 transitions. Complement of second has 6 states. [2025-02-17 22:45:43,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:43,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:43,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2025-02-17 22:45:43,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-17 22:45:43,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:43,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 5 letters. Loop has 2 letters. [2025-02-17 22:45:43,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:43,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-17 22:45:43,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:43,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1062 states and 4032 transitions. [2025-02-17 22:45:43,845 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 126 [2025-02-17 22:45:43,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1062 states to 704 states and 2640 transitions. [2025-02-17 22:45:43,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 286 [2025-02-17 22:45:43,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 393 [2025-02-17 22:45:43,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 704 states and 2640 transitions. [2025-02-17 22:45:43,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:43,857 INFO L218 hiAutomatonCegarLoop]: Abstraction has 704 states and 2640 transitions. [2025-02-17 22:45:43,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states and 2640 transitions. [2025-02-17 22:45:43,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 597. [2025-02-17 22:45:43,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 597 states have (on average 3.912897822445561) internal successors, (2336), 596 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:43,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 2336 transitions. [2025-02-17 22:45:43,881 INFO L240 hiAutomatonCegarLoop]: Abstraction has 597 states and 2336 transitions. [2025-02-17 22:45:43,881 INFO L432 stractBuchiCegarLoop]: Abstraction has 597 states and 2336 transitions. [2025-02-17 22:45:43,881 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:45:43,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 597 states and 2336 transitions. [2025-02-17 22:45:43,885 INFO L131 ngComponentsAnalysis]: Automaton has 42 accepting balls. 126 [2025-02-17 22:45:43,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:43,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:43,885 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:45:43,885 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:43,886 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[74] $Ultimate##0-->L25: Formula: (= v_z_1 0) InVars {} OutVars{z=v_z_1} AuxVars[] AssignedVars[z]" "[75] L25-->L26: Formula: (= v_i_1 v_x_1) InVars {x=v_x_1} OutVars{i=v_i_1, x=v_x_1} AuxVars[] AssignedVars[i]" "[76] L26-->L28-1: Formula: (and (< 0 v_x_2) (< 0 v_y_1)) InVars {y=v_y_1, x=v_x_2} OutVars{y=v_y_1, x=v_x_2} AuxVars[] AssignedVars[]" [2025-02-17 22:45:43,886 INFO L754 eck$LassoCheckResult]: Loop: "[79] L28-1-->L30: Formula: (< 0 v_i_2) InVars {i=v_i_2} OutVars{i=v_i_2} AuxVars[] AssignedVars[]" "[83] L30-->L31: Formula: (= (+ v_i_3 1) v_i_4) InVars {i=v_i_4} OutVars{i=v_i_3} AuxVars[] AssignedVars[i]" "[85] L31-->L28-1: Formula: (= (+ v_z_3 1) v_z_2) InVars {z=v_z_3} OutVars{z=v_z_2} AuxVars[] AssignedVars[z]" [2025-02-17 22:45:43,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:43,886 INFO L85 PathProgramCache]: Analyzing trace with hash 3886763, now seen corresponding path program 1 times [2025-02-17 22:45:43,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:43,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627243332] [2025-02-17 22:45:43,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:43,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:43,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:43,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:43,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,892 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:43,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:43,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:43,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:43,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:43,898 INFO L85 PathProgramCache]: Analyzing trace with hash 108368, now seen corresponding path program 1 times [2025-02-17 22:45:43,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:43,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304258485] [2025-02-17 22:45:43,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:43,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:43,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:43,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:43,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,903 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:43,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:43,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:43,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:43,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:43,906 INFO L85 PathProgramCache]: Analyzing trace with hash -173481882, now seen corresponding path program 1 times [2025-02-17 22:45:43,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:43,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599971708] [2025-02-17 22:45:43,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:43,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:43,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:43,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:43,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,910 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:43,911 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:43,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:43,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:43,936 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:43,936 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:43,936 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:43,937 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:43,937 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:43,937 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,937 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:43,937 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:43,937 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:43,937 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:43,937 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:43,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,942 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,961 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:43,961 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:43,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,963 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) [2025-02-17 22:45:43,964 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 [2025-02-17 22:45:43,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:43,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:43,983 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 [2025-02-17 22:45:43,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,985 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) [2025-02-17 22:45:43,986 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 [2025-02-17 22:45:43,987 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:43,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:44,007 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:44,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-02-17 22:45:44,012 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:44,012 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:44,012 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:44,012 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:44,012 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:44,012 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,012 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:44,012 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:44,012 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:44,012 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:44,012 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:44,013 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,038 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:44,039 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:44,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,040 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) [2025-02-17 22:45:44,042 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 [2025-02-17 22:45:44,043 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 [2025-02-17 22:45:44,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:44,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:44,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:44,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:44,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:44,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:44,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:44,056 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:44,058 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-02-17 22:45:44,058 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:44,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,060 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) [2025-02-17 22:45:44,062 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 [2025-02-17 22:45:44,063 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:44,063 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:44,063 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:44,063 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(i) = 1*i Supporting invariants [] [2025-02-17 22:45:44,068 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 [2025-02-17 22:45:44,069 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:44,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:44,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:44,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:44,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:44,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:44,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:44,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:44,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:44,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:44,091 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:44,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:44,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:44,138 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 [2025-02-17 22:45:44,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:44,148 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:45:44,148 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 597 states and 2336 transitions. cyclomatic complexity: 1831 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:44,197 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 597 states and 2336 transitions. cyclomatic complexity: 1831. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1612 states and 6348 transitions. Complement of second has 7 states. [2025-02-17 22:45:44,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:44,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:44,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions. [2025-02-17 22:45:44,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 52 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:45:44,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:44,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 52 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:45:44,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:44,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 52 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-17 22:45:44,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:44,199 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1612 states and 6348 transitions. [2025-02-17 22:45:44,213 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 63 [2025-02-17 22:45:44,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1612 states to 1268 states and 4959 transitions. [2025-02-17 22:45:44,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 417 [2025-02-17 22:45:44,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 477 [2025-02-17 22:45:44,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1268 states and 4959 transitions. [2025-02-17 22:45:44,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:44,226 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1268 states and 4959 transitions. [2025-02-17 22:45:44,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states and 4959 transitions. [2025-02-17 22:45:44,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 975. [2025-02-17 22:45:44,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 975 states have (on average 3.961025641025641) internal successors, (3862), 974 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 3862 transitions. [2025-02-17 22:45:44,250 INFO L240 hiAutomatonCegarLoop]: Abstraction has 975 states and 3862 transitions. [2025-02-17 22:45:44,250 INFO L432 stractBuchiCegarLoop]: Abstraction has 975 states and 3862 transitions. [2025-02-17 22:45:44,250 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:45:44,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 975 states and 3862 transitions. [2025-02-17 22:45:44,255 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 63 [2025-02-17 22:45:44,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:44,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:44,255 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:45:44,255 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:44,256 INFO L752 eck$LassoCheckResult]: Stem: "[97] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[74] $Ultimate##0-->L25: Formula: (= v_z_1 0) InVars {} OutVars{z=v_z_1} AuxVars[] AssignedVars[z]" "[75] L25-->L26: Formula: (= v_i_1 v_x_1) InVars {x=v_x_1} OutVars{i=v_i_1, x=v_x_1} AuxVars[] AssignedVars[i]" "[76] L26-->L28-1: Formula: (and (< 0 v_x_2) (< 0 v_y_1)) InVars {y=v_y_1, x=v_x_2} OutVars{y=v_y_1, x=v_x_2} AuxVars[] AssignedVars[]" "[78] L28-1-->L33-1: Formula: (<= v_i_5 0) InVars {i=v_i_5} OutVars{i=v_i_5} AuxVars[] AssignedVars[]" [2025-02-17 22:45:44,256 INFO L754 eck$LassoCheckResult]: Loop: "[82] L33-1-->L35: Formula: (< v_i_6 v_y_2) InVars {i=v_i_6, y=v_y_2} OutVars{i=v_i_6, y=v_y_2} AuxVars[] AssignedVars[]" "[84] L35-->L36: Formula: (= (+ v_i_8 1) v_i_7) InVars {i=v_i_8} OutVars{i=v_i_7} AuxVars[] AssignedVars[i]" "[86] L36-->L33-1: Formula: (= v_z_5 (+ v_z_4 1)) InVars {z=v_z_5} OutVars{z=v_z_4} AuxVars[] AssignedVars[z]" [2025-02-17 22:45:44,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:44,256 INFO L85 PathProgramCache]: Analyzing trace with hash 120489731, now seen corresponding path program 1 times [2025-02-17 22:45:44,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:44,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006471100] [2025-02-17 22:45:44,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:44,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:44,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:44,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:44,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:44,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:44,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:44,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006471100] [2025-02-17 22:45:44,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006471100] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:44,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:44,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-17 22:45:44,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430725807] [2025-02-17 22:45:44,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:44,303 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-17 22:45:44,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:44,304 INFO L85 PathProgramCache]: Analyzing trace with hash 111283, now seen corresponding path program 1 times [2025-02-17 22:45:44,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:44,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635754035] [2025-02-17 22:45:44,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:44,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:44,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:44,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:44,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:44,311 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:44,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:44,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:44,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:44,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:44,333 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:44,333 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:44,333 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:44,333 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:44,333 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:44,334 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,334 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:44,334 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:44,334 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:45:44,334 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:44,334 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:44,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,337 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,358 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:44,358 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:44,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,360 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) [2025-02-17 22:45:44,362 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 [2025-02-17 22:45:44,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:44,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:44,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:44,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,381 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) [2025-02-17 22:45:44,382 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 [2025-02-17 22:45:44,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:44,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:44,410 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:44,410 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {z=0} Honda state: {z=0} Generalized eigenvectors: [{z=-1}, {z=7}, {z=-7}] Lambdas: [8, 1, 1] Nus: [1, 0] [2025-02-17 22:45:44,415 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 [2025-02-17 22:45:44,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,417 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) [2025-02-17 22:45:44,418 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 [2025-02-17 22:45:44,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:44,419 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:44,434 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 [2025-02-17 22:45:44,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,436 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) [2025-02-17 22:45:44,437 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 [2025-02-17 22:45:44,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:44,438 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:44,501 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:44,505 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 [2025-02-17 22:45:44,505 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:44,505 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:44,505 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:44,505 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:44,505 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:44,505 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,505 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:44,505 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:44,505 INFO L132 ssoRankerPreferences]: Filename of dumped script: complex_thr1_3.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:45:44,505 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:44,506 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:44,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,533 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:44,533 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:44,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,535 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) [2025-02-17 22:45:44,537 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 [2025-02-17 22:45:44,538 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 [2025-02-17 22:45:44,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:44,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:44,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:44,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:44,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:44,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:44,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:44,553 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:44,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:44,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,560 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) [2025-02-17 22:45:44,560 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 [2025-02-17 22:45:44,561 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 [2025-02-17 22:45:44,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:44,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:44,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:44,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:44,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:44,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:44,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:44,573 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:44,576 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:44,576 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:44,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,578 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) [2025-02-17 22:45:44,580 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 [2025-02-17 22:45:44,580 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:44,580 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:44,581 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:44,581 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(y, i) = 1*y - 1*i Supporting invariants [] [2025-02-17 22:45:44,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-17 22:45:44,587 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:44,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:44,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:44,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:44,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:44,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:44,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:44,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:44,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:44,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:44,613 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:44,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:44,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:44,636 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:45:44,636 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 975 states and 3862 transitions. cyclomatic complexity: 3009 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:44,693 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 975 states and 3862 transitions. cyclomatic complexity: 3009. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1579 states and 6209 transitions. Complement of second has 6 states. [2025-02-17 22:45:44,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:44,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:44,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 53 transitions. [2025-02-17 22:45:44,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 53 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:45:44,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:44,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 53 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:45:44,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:44,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 53 transitions. Stem has 5 letters. Loop has 6 letters. [2025-02-17 22:45:44,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:44,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1579 states and 6209 transitions. [2025-02-17 22:45:44,725 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 [2025-02-17 22:45:44,727 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:44,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1579 states to 0 states and 0 transitions. [2025-02-17 22:45:44,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:45:44,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:45:44,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:45:44,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:44,728 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:44,728 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:44,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:44,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-17 22:45:44,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-17 22:45:44,731 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:44,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:44,733 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-02-17 22:45:44,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-02-17 22:45:44,733 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:44,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-02-17 22:45:44,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:45:44,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:45:44,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:45:44,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:44,733 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:44,733 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:44,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-17 22:45:44,735 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:44,735 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:45:44,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:45:44,735 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:44,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:45:44,742 INFO L201 PluginConnector]: Adding new model complex_thr1_3.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:45:44 BoogieIcfgContainer [2025-02-17 22:45:44,743 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:45:44,744 INFO L158 Benchmark]: Toolchain (without parser) took 2411.27ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 86.2MB in the beginning and 82.9MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:44,744 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.96ms. Allocated memory is still 159.4MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:44,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.52ms. Allocated memory is still 159.4MB. Free memory was 86.2MB in the beginning and 84.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:44,745 INFO L158 Benchmark]: Boogie Preprocessor took 13.72ms. Allocated memory is still 159.4MB. Free memory was 84.8MB in the beginning and 84.1MB in the end (delta: 693.3kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:44,745 INFO L158 Benchmark]: RCFGBuilder took 166.89ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 75.0MB in the end (delta: 9.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-02-17 22:45:44,745 INFO L158 Benchmark]: BuchiAutomizer took 2209.22ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 75.0MB in the beginning and 82.9MB in the end (delta: -7.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:44,746 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 0.96ms. Allocated memory is still 159.4MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.52ms. Allocated memory is still 159.4MB. Free memory was 86.2MB in the beginning and 84.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 13.72ms. Allocated memory is still 159.4MB. Free memory was 84.8MB in the beginning and 84.1MB in the end (delta: 693.3kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 166.89ms. Allocated memory is still 159.4MB. Free memory was 84.1MB in the beginning and 75.0MB in the end (delta: 9.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 2209.22ms. Allocated memory was 159.4MB in the beginning and 125.8MB in the end (delta: -33.6MB). Free memory was 75.0MB in the beginning and 82.9MB in the end (delta: -7.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x + y and consists of 4 locations. One deterministic module has affine ranking function y + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function y + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 555 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 196 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 192 mSDsluCounter, 236 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 109 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 169 IncrementalHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 127 mSDtfsCounter, 169 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp84 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp100 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:45:44,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...